/usr/share/tcltk/tklib0.6/plotchart/plotpriv.tcl is in tklib 0.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 | # plotpriv.tcl --
# Facilities to draw simple plots in a dedicated canvas
#
# Note:
# This source file contains the private functions.
# It is the companion of "plotchart.tcl"
#
# WidthCanvas --
# Return the width of the canvas
# Arguments:
# w Name of the canvas
# useref Use reference width if it exists
# Result:
# Width in pixels
#
proc ::Plotchart::WidthCanvas {w {useref 1}} {
variable scaling
set ref $scaling($w,reference)
if { [string match {[0-9]*} $w] } {
set w [string range $w 2 end]
}
if { [info exists scaling($ref,refwidth)] && $useref } {
set width $scaling($ref,refwidth)
} else {
set width [winfo width $w]
if { $width < 10 } {
set width [$w cget -width]
}
}
incr width -[$w cget -borderwidth]
return $width
}
# HeightCanvas --
# Return the height of the canvas
# Arguments:
# w Name of the canvas
# useref Use reference height if it exists
# Result:
# Height in pixels
#
proc ::Plotchart::HeightCanvas {w {useref 1}} {
variable scaling
set ref $scaling($w,reference)
if { [string match {[0-9]*} $w] } {
set w [string range $w 2 end]
}
if { [info exists scaling($ref,refheight)] && $useref } {
set height $scaling($ref,refheight)
} else {
set height [winfo height $w]
if { $height < 10 } {
set height [$w cget -height]
}
}
incr height -[$w cget -borderwidth]
return $height
}
# SavePlot --
# Save the plot/chart to a PostScript file (using default options)
# Arguments:
# w Name of the canvas
# filename Name of the file to write
# args Additional optional arguments as ?option value ... ...?
# -format name a file format different from PostScript to save the plot into
# -plotregion region define what region of the plot to save
# ('bbox' saves all within the bbox, 'window' saves what is visible in the current window)
# Result:
# None
# Side effect:
# A (new) PostScript file or other file format
#
proc ::Plotchart::SavePlot { w filename args } {
array set options {-format ps -plotregion window}
array set options $args
foreach {opt val} $args {
if {$opt ni {-format -plotregion}} {
return -code error "Unknown option: $opt - must be: -format or -plotregion"
}
}
if {$options(-plotregion) eq "bbox" && $options(-format) ne "ps"} {
return -code error "'-plotregion bbox' can only be used together with '-format ps'"
}
if {$options(-format) ne "ps"} {
regexp {\..*} $w c
package require Img
#
# This is a kludge:
# Somehow tkwait does not always work (on Windows XP, that is)
#
raise [winfo toplevel $c]
# tkwait visibility [winfo toplevel $c]
after 2000 {set ::Plotchart::waited 0}
vwait ::Plotchart::waited
set img [image create photo -data $c -format window]
$img write $filename -format $options(-format)
} else {
#
# Wait for the canvas to become visible - just in case.
# Then write the file
#
update idletasks
if {$options(-plotregion) eq "window"} {
$w postscript -file $filename
} elseif {$options(-plotregion) eq "bbox"} {
lassign [$w bbox all] xmin ymin xmax ymax
# '+2' here, because the bbox from the canvas is only approximate
# and may be a tiny bit too small sometimes, especially with text
# at the edges
set width [expr {$xmax-$xmin+2}]
set height [expr {$ymax-$ymin+2}]
$w postscript -file $filename -x $xmin -y $ymin -height $height -width $width
} else {
return -code error "Unknown value '$options(-plotregion)' for -plotregion option"
}
}
}
# DetermineFromAxesBox --
# Determine the layout from the information in an axes box
# Arguments:
# axesbox Data defining the axes box
# pxdef Default minimum x-coordinate
# pydef Default minimum y-coordinate
# margin_right Margin right
# margin_bottom Margin bottom
# Result:
# List of four values
#
proc ::Plotchart::DetermineFromAxesBox {axesbox pxdef pydef margin_right margin_bottom} {
variable scaling
foreach {ref_plot dir upperx uppery axis_width axis_height} $axesbox {break}
set pos [string first _ $ref_plot]
set ref_plot [string range $ref_plot [expr {$pos+1}] end]
set refxmin $scaling($ref_plot,pxmin)
set refymin $scaling($ref_plot,pymin)
set refxmax $scaling($ref_plot,pxmax)
set refymax $scaling($ref_plot,pymax)
switch -- [string toupper $dir] {
"N" {
set pxmin [expr {($refxmin + $refxmax)/2}]
set pymin $refymin
}
"NW" {
set pxmin $refxmin
set pymin $refymin
}
"NE" {
set pxmin $refxmax
set pymin $refymin
}
"E" {
set pxmin $refxmax
set pymin [expr {($refymin + $refymax)/2}]
}
"SE" {
set pxmin $refxmax
set pymin $refymax
}
"S" {
set pxmin [expr {($refxmin + $refxmax)/2}]
set pymin $refymax
}
"SW" {
set pxmin $refxmin
set pymin $refymax
}
"W" {
set pxmin $refxmin
set pymin [expr {($refymin + $refymax)/2}]
}
"C" {
set pxmin [expr {($refxmin + $refxmax)/2}]
set pymin [expr {($refymin + $refymax)/2}]
}
default {
set pxmin $refxmin
set pymin $refymin
}
}
set pxmin [expr {$pxmin - $pxdef + $upperx}]
set pymin [expr {$pymin - $pydef - $uppery}] ;# Because of inversion of y-axis
set width [expr {$axis_width + $pxdef + $margin_right}]
set height [expr {$axis_height + $pydef + $margin_bottom}]
return [list $pxmin $pymin $width $height]
}
# MarginsRectangle --
# Determine the margins for a rectangular plot/chart
# Arguments:
# w Name of the plot
# argv List of options
# notext Number of lines of text to make room for at the top
# (default: 2.0)
# text_width Number of characters to be displayed at most on left
# (default: 8)
# Result:
# List of four values
#
proc ::Plotchart::MarginsRectangle { w argv {notext 2.0} {text_width 8}} {
variable config
variable scaling
if { [string match {[0-9]*} $w] } {
set c [string range $w 2 end]
} else {
set c $w
}
set char_width $config(font,char_width)
set char_height $config(font,char_height)
set config($w,font,char_width) $char_width
set config($w,font,char_height) $char_height
foreach {char_width char_height} [FontMetrics $w] {break}
set margin_right [expr {$char_width * 4}]
if { $margin_right < $config($w,margin,right) } {
set margin_right $config($w,margin,right)
}
if { $config($w,rightaxis,usevsubtext) } {
set char_height [font metrics $config($w,rightaxis,vsubtextfont) -linespace]
set margin_right [expr {$margin_right + $char_height + 4}]
}
set margin_bottom [expr {$char_height * 2 + 2}]
if { $margin_bottom < $config($w,margin,bottom) } {
set margin_bottom $config($w,margin,bottom)
}
if { $config($w,bottomaxis,usesubtext) } {
set char_height [font metrics $config($w,bottomaxis,subtextfont) -linespace]
set margin_bottom [expr {$margin_bottom + $char_height}]
}
set pxmin [expr {$char_width*$text_width}]
if { $pxmin < $config($w,margin,left) } {
set pxmin $config($w,margin,left)
}
set pymin [expr {int($char_height*$notext) + [$w cget -borderwidth]}]
if { $pymin < $config($w,margin,top) } {
set pymin $config($w,margin,top)
}
if { $config($w,leftaxis,usesubtext) || $config($w,rightaxis,usesubtext) } {
set char_height1 [font metrics $config($w,leftaxis,subtextfont) -linespace]
set char_height2 [font metrics $config($w,rightaxis,subtextfont) -linespace]
set pymin [expr {$pymin + max($char_height1,$char_height2)}]
}
if { $config($w,leftaxis,usevsubtext) } {
set char_height [font metrics $config($w,leftaxis,vsubtextfont) -linespace]
set pxmin [expr {$pxmin + $char_height + 4}]
}
array set options $argv
if {[info exists options(-box)]} {
foreach {offx offy width height} $options(-box) {break}
if { $offy == 0 } {
set offy [$w cget -borderwidth]
}
set scaling($w,reference) $w
set scaling($w,refx) $offx
set scaling($w,refy) $offy
set scaling($w,refwidth) [expr {$offx + $width}]
set scaling($w,refheight) [expr {$offy + $height}]
} elseif {[info exists options(-axesbox)]} {
foreach {offx offy width height} [DetermineFromAxesBox $options(-axesbox) $pxmin $pymin $margin_right $margin_bottom] {break}
if { $offy == 0 } {
set offy [$w cget -borderwidth]
}
set ref_plot [lindex $options(-axesbox) 0]
set pos [string first _ $ref_plot]
set ref [string range $ref_plot [expr {$pos+1}] end]
set scaling($w,reference) $scaling($ref,reference) ;# A chain of references is possible!
} else {
set scaling($w,reference) $w
set offx 0
set offy [$w cget -borderwidth]
set width [WidthCanvas $w]
set height [HeightCanvas $w]
set scaling($w,refx) 0
set scaling($w,refy) 0
set scaling($w,refwidth) $width
set scaling($w,refheight) $height
}
set pxmin [expr {$offx + $pxmin}]
set pymin [expr {$offy + $pymin}]
set pxmax [expr {$offx + $width - $margin_right}]
set pymax [expr {$offy + $height - $margin_bottom}]
set ref $scaling($w,reference)
if { ! [info exists scaling($ref,boxxmin)] } {
set scaling($ref,boxxmin) $pxmin
set scaling($ref,boxymin) $pymin
set scaling($ref,boxxmax) $pxmax
set scaling($ref,boxymax) $pymax
set scaling($ref,refx) $offx
set scaling($ref,refy) $offy
} else {
Minset scaling($ref,boxxmin) $pxmin
Minset scaling($ref,boxymin) $pymin
Maxset scaling($ref,boxxmax) $pxmax
Maxset scaling($ref,boxymax) $pymax
Minset scaling($ref,refx) $offx
Minset scaling($ref,refy) $offy
}
return [list $pxmin $pymin $pxmax $pymax]
}
# Minset, Maxset --
# Auxiliary procedures to conditionally update a variable
# Arguments:
# varName Name of the variable
# newValue New value
#
proc ::Plotchart::Minset {varName newValue} {
upvar 1 $varName var
if { $var > $newValue } {
set var $newValue
}
}
proc ::Plotchart::Maxset {varName newValue} {
upvar 1 $varName var
if { $var < $newValue } {
set var $newValue
}
}
# MarginsSquare --
# Determine the margins for a square plot/chart
# Arguments:
# w Name of the canvas
# notext Number of lines of text to make room for at the top
# (default: 2.0)
# text_width Number of characters to be displayed at most on left
# (default: 8)
# Result:
# List of four values
#
proc ::Plotchart::MarginsSquare { w {notext 2.0} {text_width 8}} {
variable config
variable scaling
set scaling($w,reference) $w
set scaling($w,refx) 0
set scaling($w,refy) [$w cget -borderwidth]
set scaling($w,refwidth) [WidthCanvas $w]
set scaling($w,refheight) [HeightCanvas $w]
set char_width $config(font,char_width)
set char_height $config(font,char_height)
set config($w,font,char_width) $char_width
set config($w,font,char_height) $char_height
foreach {char_width char_height} [FontMetrics $w] {break}
set margin_right [expr {$char_width * 4}]
if { $margin_right < $config($w,margin,right) } {
set margin_right $config($w,margin,right)
}
set margin_bottom [expr {$char_height * 2 + 2}]
if { $margin_bottom < $config($w,margin,bottom) } {
set margin_bottom $config($w,margin,bottom)
}
set pxmin [expr {$char_width*$text_width}]
if { $pxmin < $config($w,margin,left) } {
set pxmin $config($w,margin,left)
}
set pymin [expr {int($char_height*$notext)}]
if { $pymin < $config($w,margin,top) } {
set pymin $config($w,margin,top)
}
set pxmax [expr {[WidthCanvas $w] - $margin_right}]
set pymax [expr {[HeightCanvas $w] - $margin_bottom}]
if { $pxmax-$pxmin > $pymax-$pymin } {
set pxmax [expr {$pxmin + ($pymax - $pymin)}]
} else {
set pymax [expr {$pymin + ($pxmax - $pxmin)}]
}
return [list $pxmin $pymin $pxmax $pymax]
}
# MarginsCircle --
# Determine the margins for a circular plot/chart
# Arguments:
# w Name of the canvas
# args additional arguments for placement of plot,
# currently: '-box', '-reference', and '-units'
# Result:
# List of four values giving the pixel coordinates
# of the boundary of the piechart
#
proc ::Plotchart::MarginsCircle { w args } {
variable scaling
array set options $args
if { [info exists options(-box)] } {
set scaling($w,reference) $w
} elseif { [info exists options(-reference)] } {
set ref_plot [lindex $options(-reference) 0]
set pos [string first _ $ref_plot]
set ref [string range $ref_plot [expr {$pos+1}] end]
set scaling($w,reference) $scaling($ref,reference)
} else {
set scaling($w,reference) $w
}
set pxmin 80
set pymin 30
set pxmax [expr {[WidthCanvas $w] - 80}]
set pymax [expr {[HeightCanvas $w] - 30}]
#set pxmax [expr {[$w cget -width] - 80}]
#set pymax [expr {[$w cget -height] - 30}]
# width (dx) and height (dy) of plot region in pixels:
if {[info exists options(-units)]} {
# refUnitX, refUnitY - size of one world coordinate unit in the piechart,
# given as canvas coords (can also be m,c,i,p units)
# Note: the pie is always 2 world coordinate units in diameter
#
lassign $options(-units) refUnitX refUnitY
set wc [string range $w 2 end]
set refUnitX [winfo pixels $wc $refUnitX]
set refUnitY [winfo pixels $wc $refUnitY]
set dx [expr {$refUnitX * 2}]
set dy [expr {$refUnitY * 2}]
} else {
set dx [expr {$pxmax-$pxmin+1}]
set dy [expr {$pymax-$pymin+1}]
# make sure, we get a centred circle:
if {$dx < $dy} {
set dy $dx
} else {
set dx $dy
}
set pxmin [expr {($pxmin+$pxmax-$dx)/2}]
}
# new default coords of plotting region:
set pxmax [expr {$pxmin + $dx}]
set pymax [expr {$pymin + $dy}]
if {[info exists options(-reference)]} {
# refPlot - name of the plot referring to
# refX - x world coordinate of center of new piechart in refPlot coordinate system
# refY - see above, just for y
#
lassign $options(-reference) refPlot refX refY
set pos [string first _ $refPlot]
set refPlot [string range $refPlot [expr {$pos+1}] end]
lassign [coordsToPixel $refPlot $refX $refY] refpx refpy
if {$dx < $dy} {set delta [expr {$dx/2.0}]} else {set delta [expr {$dy/2.0}]}
set pxmin [expr {$refpx - $delta}]
set pxmax [expr {$refpx + $delta}]
set pymin [expr {$refpy - $delta}]
set pymax [expr {$refpy + $delta}]
} elseif {[info exists options(-box)]} {
# put the pie into the middle of the -box and make it
# as large as possible, ignoring the labels for now,
# that may be placed outside the box
# Note: also ignores -units setting
lassign $options(-box) pxmin pymin width height
if {$height >= $width} {
# place vertically in the middle of the -box
if { $pxmin == 0 } {set pxmin [$w cget -borderwidth]}
set pymin [expr {$pymin + ($height-$width)/2.0}]
if { $pymin == 0 } {set pymin [$w cget -borderwidth]}
} else {
# place horizontally in the middle of the -box
if { $pymin == 0 } {set pymin [$w cget -borderwidth]}
set pxmin [expr {$pxmin + ($width-$height)/2.0}]
if { $pxmin == 0 } {set pxmin [$w cget -borderwidth]}
}
# only take the smallest dimension to keep the pie a circle:
if {$width < $height} {set height $width}
if {$height < $width} {set width $height}
set pxmax [expr {$pxmin + $width}]
set pymax [expr {$pymin + $height}]
set scaling($w,refx) $pxmin
set scaling($w,refy) $pymin
set scaling($w,refwidth) [expr {$pxmin + $width}]
set scaling($w,refheight) [expr {$pymin + $height}]
} else {
set scaling($w,refx) 0
set scaling($w,refy) [$w cget -borderwidth]
set scaling($w,refwidth) [WidthCanvas $w]
set scaling($w,refheight) [HeightCanvas $w]
}
return [list $pxmin $pymin $pxmax $pymax]
}
# Margins3DPlot --
# Determine the margins for a 3D plot
# Arguments:
# w Name of the canvas
# Result:
# List of four values
#
proc ::Plotchart::Margins3DPlot { w } {
variable scaling
set scaling($w,reference) $w
set scaling($w,refx) 0
set scaling($w,refy) [$w cget -borderwidth]
set scaling($w,refwidth) [WidthCanvas $w]
set scaling($w,refheight) [HeightCanvas $w]
set yfract 0.33
set zfract 0.50
if { [info exists scaling($w,yfract)] } {
set yfract $scaling($w,yfract)
} else {
set scaling($w,yfract) $yfract
}
if { [info exists scaling($w,zfract)] } {
set zfract $scaling($w,zfract)
} else {
set scaling($w,zfract) $zfract
}
set yzwidth [expr {(-120+[WidthCanvas $w])/(1.0+$yfract)}]
set yzheight [expr {(-60+[HeightCanvas $w])/(1.0+$zfract)}]
#set yzwidth [expr {(-120+[$w cget -width])/(1.0+$yfract)}]
#set yzheight [expr {(-60+[$w cget -height])/(1.0+$zfract)}]
set pxmin [expr {60+$yfract*$yzwidth}]
set pxmax [expr {[WidthCanvas $w] - 60}]
#set pxmax [expr {[$w cget -width] - 60}]
set pymin 30
set pymax [expr {30+$yzheight}]
return [list $pxmin $pymin $pxmax $pymax]
}
# GetPlotArea --
# Return the area reserved for the plot
# Arguments:
# w Name of the canvas
# Result:
# List of: (x,y) upper left, (x,y) lower right, width and height
#
proc ::Plotchart::GetPlotArea { w } {
variable scaling
set width [expr {$scaling($w,pxmax) - $scaling($w,pxmin) + 1}]
set height [expr {$scaling($w,pymax) - $scaling($w,pymin) + 1}]
return [list $scaling($w,pxmin) $scaling($w,pymin) $scaling($w,pxmax) $scaling($w,pymax) $width $height]
}
# CopyScalingData --
# Copy the scaling data for coordsToPixel and friends if needed
# Arguments:
# w Name of the plot
# c Name of the canvas
# Result:
# None
#
proc ::Plotchart::CopyScalingData { w c } {
variable scaling
if { [string match "00*" $w] } {
foreach var {new xmin xmax ymin ymax pxmin pxmax pymin pymax coordSystem xfactor yfactor} {
set scaling($c,$var) $scaling($w,$var)
}
}
}
# SetColours --
# Set the colours for those plots that treat them as a global resource
# Arguments:
# w Name of the canvas
# args List of colours to be used
# Result:
# None
#
proc ::Plotchart::SetColours { w args } {
variable scaling
set scaling($w,colours) $args
}
# CycleColours --
# create cycling colours for those plots that treat them as a global resource
# Arguments:
# colours List of colours to be used. An empty list will activate to default colours
# nr_data Number of data records
# Result:
# List of 'nr_data' colours to be used
#
proc ::Plotchart::CycleColours { colours nr_data } {
if {![llength ${colours}]} {
# force to most usable default colour list
set colours {green blue red cyan yellow magenta}
}
if {[llength ${colours}] < ${nr_data}} {
# cycle through colours
set init_colours ${colours}
set colours {}
set pos 0
for {set nr 0} {${nr} < ${nr_data}} {incr nr} {
lappend colours [lindex ${init_colours} ${pos}]
incr pos
if {[llength ${init_colours}] <= ${pos}} {
set pos 0
}
}
if {[string equal [lindex ${colours} 0] [lindex ${colours} end]]} {
# keep first and last colour different from selected colours
# this will /sometimes fail in cases with only one/two colours in list
set colours [lreplace ${colours} end end [lindex ${colours} 1]]
}
}
return ${colours}
}
# DataConfig --
# Configure the data series
# Arguments:
# w Name of the canvas
# series Name of the series in question
# args Option and value pairs
# Result:
# None
#
proc ::Plotchart::DataConfig { w series args } {
variable data_series
variable options
variable option_keys
variable option_values
foreach {option value} $args {
set idx [lsearch $options $option]
if { $idx < 0 } {
return -code error "Unknown or invalid option: $option (value: $value)"
} else {
set key [lindex $option_keys $idx]
set idx [lsearch $option_values $key]
set values [lindex $option_values [incr idx]]
if { $values != "..." } {
if { [lsearch $values $value] < 0 } {
return -code error "Unknown or invalid value: $value for option $option - $values"
}
}
set data_series($w,$series,$key) $value
}
}
}
# ScaleIsometric --
# Determine the scaling for an isometric plot
# Arguments:
# w Name of the canvas
# xmin Minimum x coordinate
# ymin Minimum y coordinate
# xmax Maximum x coordinate
# ymax Maximum y coordinate
# (default: 1.5)
# Result:
# None
# Side effect:
# Array with scaling parameters set
#
proc ::Plotchart::ScaleIsometric { w xmin ymin xmax ymax } {
variable scaling
set pxmin $scaling($w,pxmin)
set pymin $scaling($w,pymin)
set pxmax $scaling($w,pxmax)
set pymax $scaling($w,pymax)
set dx [expr {double($xmax-$xmin)/($pxmax-$pxmin)}]
set dy [expr {double($ymax-$ymin)/($pymax-$pymin)}]
#
# Which coordinate is dominant?
#
if { $dy < $dx } {
set yminn [expr {0.5*($ymax+$ymin) - 0.5 * $dx * ($pymax-$pymin)}]
set ymaxn [expr {0.5*($ymax+$ymin) + 0.5 * $dx * ($pymax-$pymin)}]
set ymin $yminn
set ymax $ymaxn
} else {
set xminn [expr {0.5*($xmax+$xmin) - 0.5 * $dy * ($pxmax-$pxmin)}]
set xmaxn [expr {0.5*($xmax+$xmin) + 0.5 * $dy * ($pxmax-$pxmin)}]
set xmin $xminn
set xmax $xmaxn
}
worldCoordinates $w $xmin $ymin $xmax $ymax
}
# PlotHandler --
# Handle the subcommands for an XY plot or chart
# Arguments:
# type Type of plot/chart
# w Name of the canvas
# command Subcommand or method to run
# args Data for the command
# Result:
# Whatever returned by the subcommand
#
proc ::Plotchart::PlotHandler { type w command args } {
variable methodProc
if { [info exists methodProc($type,$command)] } {
if { [llength $methodProc($type,$command)] == 1 } {
eval $methodProc($type,$command) $w $args
} else {
eval $methodProc($type,$command)_$w $w $args
}
} else {
return -code error "No such method - $command"
}
}
# DrawMask --
# Draw the stuff that masks the data lines outside the graph
# Arguments:
# w Name of the canvas
# Result:
# None
# Side effects:
# Several polygons drawn in the background colour
#
proc ::Plotchart::DrawMask { w } {
variable scaling
variable config
if { $config($w,mask,draw) == 0 } {
return
}
if { [string match {[0-9]*} $w] } {
set c [string range $w 2 end]
} else {
set c $w
}
set ref $scaling($w,reference)
if { [info exists scaling($ref,boxxmin)] } {
set pxmin $scaling($ref,boxxmin)
set pymin $scaling($ref,boxymin)
set pxmax $scaling($ref,boxxmax)
set pymax $scaling($ref,boxymax)
set offx $scaling($ref,refx)
set offy $scaling($ref,refy)
} else {
set pxmin [expr {$scaling($w,pxmin)-1}]
set pymin [expr {$scaling($w,pymin)-1}]
set pxmax $scaling($w,pxmax)
set pymax $scaling($w,pymax)
set offx 0
set offy 0
}
#set width [expr {[WidthCanvas $w 0] + 1}]
#set height [expr {[HeightCanvas $w 0] + 1}]
set width [expr {$pxmax + $config($w,margin,right)}]
set height [expr {$pymax + $config($w,margin,bottom)}]
set colour $config($w,background,outercolor)
#$w delete "mask && $w"
$w delete "mask && $ref"
$w create rectangle $offx $offy $pxmin $height -fill $colour -outline $colour -tag [list mask $ref]
$w create rectangle $offx $offy $width $pymin -fill $colour -outline $colour -tag [list mask $ref]
$w create rectangle $offx $pymax $width $height -fill $colour -outline $colour -tag [list mask $ref]
$w create rectangle $pxmax $offy $width $height -fill $colour -outline $colour -tag [list mask $ref]
$w lower mask
}
# DrawScrollMask --
# Draw the masking rectangles for a time or Gantt chart
# Arguments:
# w Name of the canvas
# Result:
# None
# Side effects:
# Several polygons drawn in the background colour, with appropriate
# tags
#
proc ::Plotchart::DrawScrollMask { w } {
variable scaling
variable config
set width [expr {[WidthCanvas $w] + 1}]
set height [expr {[HeightCanvas $w] + 1}]
set colour $config($w,background,outercolor)
set pxmin [expr {$scaling($w,pxmin)-1}]
set pxmax $scaling($w,pxmax)
set pymin [expr {$scaling($w,pymin)-1}]
set pymax $scaling($w,pymax)
$w create rectangle 0 0 $pxmin $height -fill $colour -outline $colour -tag vertmask
$w create rectangle 0 0 $width $pymin -fill $colour -outline $colour -tag horizmask
$w create rectangle 0 $pymax $width $height -fill $colour -outline $colour -tag horizmask
$w create rectangle $pxmax 0 $width $height -fill $colour -outline $colour -tag vertmask
$w create rectangle 0 0 $pxmin $pymin -fill $colour -outline $colour -tag {topmask top}
$w create rectangle $pxmax 0 $width $pymin -fill $colour -outline $colour -tag {topmask top}
$w lower topmask
$w lower horizmask
$w lower vertmask
}
# DrawTitle --
# Draw the title
# Arguments:
# w Name of the canvas
# title Title to appear above the graph
# position Position of the title (default: center)
# Result:
# None
# Side effects:
# Text string drawn
#
proc ::Plotchart::DrawTitle { w title {position center}} {
variable scaling
variable config
set ref $scaling($w,reference)
set offx $scaling($ref,refx)
set offy $scaling($ref,refy)
set width [WidthCanvas $w]
#set width [$w cget -width]
set pymin $scaling($w,pymin)
switch -- $position {
"left" {
set tx [expr {$offx + 3}]
set anchor nw
}
"right" {
set tx [expr {$width - 3}]
set anchor ne
}
default {
set tx [expr {($offx + $width)/2}]
set anchor n
}
}
$w delete "title_$anchor && $ref"
set obj [$w create text $tx [expr {$offy + 3 + [$w cget -borderwidth]}] -text $title \
-tags [list title title_$anchor $ref] -font $config($w,title,font) \
-fill $config($w,title,textcolor) -anchor $anchor]
set titlecolour $config($w,title,background)
if { $titlecolour == "" } {
set titlecolour $config($w,background,outercolor)
}
set bbox [$w bbox $obj]
set theight [lindex $bbox end]
set bgobj [$w create rectangle $offx $offy $width $theight -fill $titlecolour -tag [list titlebackground $ref] -outline $titlecolour]
$w raise titlebackground
$w raise title
$w raise ytext
}
# DrawSubtitle --
# Draw the subtitle
# Arguments:
# w Name of the canvas
# title Title to appear above the graph
# Result:
# None
# Side effects:
# Text string drawn
#
proc ::Plotchart::DrawSubtitle { w title } {
variable scaling
variable config
set ref $scaling($w,reference)
set offx $scaling($ref,refx)
set width [WidthCanvas $w]
set pymin $scaling($w,pymin)
set tx [expr {($offx + $width)/2}]
set offy [lindex [$w bbox title] end]
if { $offy == {} } {
set $scaling($ref,refy)
}
$w delete "subtitle && $ref"
set obj [$w create text $tx [expr {$offy + 3 + [$w cget -borderwidth]}] -text $title \
-tags [list subtitle $ref] -font $config($w,subtitle,font) \
-fill $config($w,subtitle,textcolor) -anchor n]
set titlecolour $config($w,subtitle,background)
if { $titlecolour == "" } {
set titlecolour $config($w,background,outercolor)
}
set bbox [$w bbox $obj]
set theight [lindex $bbox end]
set bgobj [$w create rectangle $offx $offy $width $theight -fill $titlecolour -tag [list subtitlebackground $ref] -outline $titlecolour]
$w raise subtitlebackground
$w raise subtitle
$w raise ytext
}
# DrawData --
# Draw the data in an XY-plot
# Arguments:
# w Name of the canvas
# series Data series
# xcrd Next x coordinate
# ycrd Next y coordinate
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawData { w series xcrd ycrd } {
variable data_series
variable scaling
#
# Check for missing values
#
if { $xcrd == "" || $ycrd == "" } {
unset -nocomplain data_series($w,$series,x)
return
}
#
# Draw the line piece
#
set colour "black"
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
set type "line"
if { [info exists data_series($w,$series,-type)] } {
set type $data_series($w,$series,-type)
}
set filled "no"
if { [info exists data_series($w,$series,-filled)] } {
set filled $data_series($w,$series,-filled)
}
set fillcolour white
if { [info exists data_series($w,$series,-fillcolour)] } {
set fillcolour $data_series($w,$series,-fillcolour)
}
set width 1
if { [info exists data_series($w,$series,-width)] } {
set width $data_series($w,$series,-width)
}
foreach {pxcrd pycrd} [coordsToPixel $w $xcrd $ycrd] {break}
if { [info exists data_series($w,$series,x)] } {
set xold $data_series($w,$series,x)
set yold $data_series($w,$series,y)
foreach {pxold pyold} [coordsToPixel $w $xold $yold] {break}
if { $filled ne "no" } {
if { $filled eq "down" } {
set pym $scaling($w,pymax)
} else {
set pym $scaling($w,pymin)
}
$w create polygon $pxold $pym $pxold $pyold $pxcrd $pycrd $pxcrd $pym \
-fill $fillcolour -outline {} -width $width -tag [list data data_$series]
}
if { $type == "line" || $type == "both" } {
$w create line $pxold $pyold $pxcrd $pycrd \
-fill $colour -width $width -tag [list data data_$series]
}
}
if { $type == "symbol" || $type == "both" } {
set symbol "dot"
if { [info exists data_series($w,$series,-symbol)] } {
set symbol $data_series($w,$series,-symbol)
}
DrawSymbolPixel $w $series $pxcrd $pycrd $symbol $colour [list "data" data_$series]
}
$w lower data
set data_series($w,$series,x) $xcrd
set data_series($w,$series,y) $ycrd
}
# DrawStripData --
# Draw the data in a stripchart
# Arguments:
# w Name of the canvas
# series Data series
# xcrd Next x coordinate
# ycrd Next y coordinate
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawStripData { w series xcrd ycrd } {
variable data_series
variable scaling
#
# Check for missing values
#
if { $xcrd == "" || $ycrd == "" } {
unset data_series($w,$series,x)
return
}
if { $xcrd > $scaling($w,xmax) } {
set xdelt $scaling($w,xdelt)
set xmin $scaling($w,xmin)
set xmax $scaling($w,xmax)
set xminorg $xmin
while { $xmax < $xcrd } {
set xmin [expr {$xmin+$xdelt}]
set xmax [expr {$xmax+$xdelt}]
}
set ymin $scaling($w,ymin)
set ymax $scaling($w,ymax)
worldCoordinates $w $xmin $ymin $xmax $ymax
DrawXaxis $w $xmin $xmax $xdelt
foreach {pxminorg pyminorg} [coordsToPixel $w $xminorg $ymin] {break}
foreach {pxmin pymin} [coordsToPixel $w $xmin $ymin] {break}
$w move data [expr {$pxminorg-$pxmin+1}] 0
}
DrawData $w $series $xcrd $ycrd
}
# DrawLogYData --
# Draw the data in an X-logY-plot
# Arguments:
# w Name of the canvas
# series Data series
# xcrd Next x coordinate
# ycrd Next y coordinate
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawLogYData { w series xcrd ycrd } {
DrawData $w $series $xcrd [expr {log10($ycrd)}]
}
# DrawLogXData --
# Draw the data in an logX-Y-plot
# Arguments:
# w Name of the canvas
# series Data series
# xcrd Next x coordinate
# ycrd Next y coordinate
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawLogXData { w series xcrd ycrd } {
DrawData $w $series [expr {log10($xcrd)}] $ycrd
}
# DrawLogXLogYData --
# Draw the data in an logX-logY-plot
# Arguments:
# w Name of the canvas
# series Data series
# xcrd Next x coordinate
# ycrd Next y coordinate
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawLogXLogYData { w series xcrd ycrd } {
DrawData $w $series [expr {log10($xcrd)}] [expr {log10($ycrd)}]
}
# DrawInterval --
# Draw the data as an error interval in an XY-plot
# Arguments:
# w Name of the canvas
# series Data series
# xcrd X coordinate
# ymin Minimum y coordinate
# ymax Maximum y coordinate
# ycentr Central y coordinate (optional)
# Result:
# None
# Side effects:
# New interval drawn in canvas
#
proc ::Plotchart::DrawInterval { w series xcrd ymin ymax {ycentr {}} } {
variable data_series
variable scaling
#
# Check for missing values
#
if { $xcrd == "" || $ymin == "" || $ymax == "" } {
return
}
#
# Draw the line piece
#
set colour "black"
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
foreach {pxcrd pymin} [coordsToPixel $w $xcrd $ymin] {break}
foreach {pxcrd pymax} [coordsToPixel $w $xcrd $ymax] {break}
if { $ycentr != "" } {
foreach {pxcrd pycentr} [coordsToPixel $w $xcrd $ycentr] {break}
}
#
# Draw the I-shape (note the asymmetry!)
#
$w create line $pxcrd $pymin $pxcrd $pymax \
-fill $colour -tag [list data data_$series]
$w create line [expr {$pxcrd-3}] $pymin [expr {$pxcrd+4}] $pymin \
-fill $colour -tag [list data data_$series]
$w create line [expr {$pxcrd-3}] $pymax [expr {$pxcrd+4}] $pymax \
-fill $colour -tag [list data data_$series]
if { $ycentr != "" } {
set symbol "dot"
if { [info exists data_series($w,$series,-symbol)] } {
set symbol $data_series($w,$series,-symbol)
}
DrawSymbolPixel $w $series $pxcrd $pycentr $symbol $colour [list data data_$series]
}
$w lower data
}
# DrawSymbolPixel --
# Draw a symbol in an xy-plot, polar plot or stripchart
# Arguments:
# w Name of the canvas
# series Data series
# pxcrd Next x (pixel) coordinate
# pycrd Next y (pixel) coordinate
# symbol What symbol to draw
# colour What colour to use
# tag What tag to use
# Result:
# None
# Side effects:
# New symbol drawn in canvas
#
proc ::Plotchart::DrawSymbolPixel { w series pxcrd pycrd symbol colour tag } {
variable data_series
variable scaling
set radius 4
if { [info exists data_series($w,$series,-radius)] } {
set radius $data_series($w,$series,-radius)
}
set pxmin [expr {$pxcrd - $radius}]
set pxmax [expr {$pxcrd + $radius}]
set pymin [expr {$pycrd - $radius}]
set pymax [expr {$pycrd + $radius}]
switch -- $symbol {
"plus" { $w create line $pxmin $pycrd $pxmax $pycrd \
$pxcrd $pycrd $pxcrd $pymin \
$pxcrd $pymax \
-fill $colour -tag $tag \
-capstyle projecting
}
"cross" { $w create line $pxmin $pymin $pxmax $pymax \
$pxcrd $pycrd $pxmax $pymin \
$pxmin $pymax \
-fill $colour -tag $tag \
-capstyle projecting
}
"circle" { $w create oval $pxmin $pymin $pxmax $pymax \
-outline $colour -tag $tag
}
"dot" { $w create oval $pxmin $pymin $pxmax $pymax \
-outline $colour -fill $colour -tag $tag
}
"up" { $w create polygon $pxmin $pymax $pxmax $pymax \
$pxcrd $pymin \
-outline $colour -fill {} -tag $tag
}
"upfilled" { $w create polygon $pxmin $pymax $pxmax $pymax \
$pxcrd $pymin \
-outline $colour -fill $colour -tag $tag
}
"down" { $w create polygon $pxmin $pymin $pxmax $pymin \
$pxcrd $pymax \
-outline $colour -fill {} -tag $tag
}
"downfilled" { $w create polygon $pxmin $pymin $pxmax $pymin \
$pxcrd $pymax \
-outline $colour -fill $colour -tag $tag
}
}
}
# DrawTimeData --
# Draw the data in an TX-plot
# Arguments:
# w Name of the canvas
# series Data series
# time Next date/time value
# xcrd Next x coordinate (vertical axis)
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawTimeData { w series time xcrd } {
DrawData $w $series [clock scan $time] $xcrd
}
# DetermineMedian --
# Determine the median of a sorted list of values
# Arguments:
# values Sorted values
# Result:
# Median value
#
proc ::Plotchart::DetermineMedian { values } {
set length [llength $values]
if { $length == 1 } {
set median [lindex $values 0]
} elseif { $length % 2 == 1 } {
set median [lindex $values [expr {$length/2}]]
} else {
set median1 [lindex $values [expr {$length/2-1}]]
set median2 [lindex $values [expr {$length/2}]]
set median [expr {($median1 + $median2)/2.0}]
}
return $median
}
# DrawBoxWhiskers --
# Draw the data in an XY-plot as box-and-whiskers
# Arguments:
# w Name of the canvas
# series Data series
# xcrd Next x coordinate or a list of values
# ycrd Next y coordinate or a list of values
# Result:
# None
# Side effects:
# New data drawn in canvas
# Note:
# We can do either a horizontal box (one y value) or
# a vertical box (one x value). Not both
#
proc ::Plotchart::DrawBoxWhiskers { w series xcrd ycrd } {
variable data_series
variable scaling
#
# Check orientation
#
set type "?"
if { [llength $xcrd] > 1 && [llength $ycrd] == 1 } {
set type h
}
if { [llength $xcrd] == 1 && [llength $ycrd] > 1 } {
set type v
}
if { $type == "?" } {
return -code error "Use either a list of x values or a list of y values - not both"
}
#
# Determine the quartiles:
#
# quartile1 is the 25% quantile
# quartile2 is the 50% quantile (the median value)
# quartile3 is the 75% quantile
#
# also
# values between 'lower'/'upper' and outlower'/'outupper' are values within 1.5*IQR - 3*IQR (drawn as a dot)
# values outside 'outlower'/'outupper' are values outside 3*IQR (drawn as a star)
#
# quartile1 is the 25% quantile
# quartile2 is the 50% quantile (the median value)
# quartile3 is the 75% quantile
#
# also
# values between 'lower'/'upper' and outlower'/'outupper' are values within 1.5*IQR - 3*IQR (drawn as a dot)
# values outside 'outlower'/'outupper' are values outside 3*IQR (drawn as a star)
#
if { $type == "h" } {
set data [lsort -real -increasing $xcrd]
} else {
set data [lsort -real -increasing $ycrd]
}
set length [llength $data]
if { $length % 2 == 0 } {
set lowerhalf [expr {($length-1)/2}]
set upperhalf [expr {($length+1)/2}]
} else {
set lowerhalf [expr {$length/2-1}]
set upperhalf [expr {$length/2+1}]
}
set quartile2 [DetermineMedian $data]
set quartile1 [DetermineMedian [lrange $data 0 $lowerhalf]]
set quartile3 [DetermineMedian [lrange $data $upperhalf end]]
set hspread [expr {$quartile3-$quartile1}]
set lower [expr {$quartile1-1.5*$hspread}]
set upper [expr {$quartile3+1.5*$hspread}]
set outlower [expr {$quartile1-3.0*$hspread}]
set outupper [expr {$quartile3+3.0*$hspread}]
set whisker IQR
if { [info exists data_series($w,$series,-whisker)] } {
set whisker $data_series($w,$series,-whisker)
}
if { $whisker eq "extremes" } {
set minimum [lindex $data 0]
set maximum [lindex $data end]
} elseif { $whisker eq "IQR" || $whisker eq "iqr" } {
set minimum {}
set maximum {}
foreach value $data {
if { $value >= $lower } {
if { $minimum == {} || $minimum > $value } {
set minimum $value
}
}
if { $value <= $upper } {
if { $maximum == {} || $maximum < $value } {
set maximum $value
}
}
}
} elseif { $whisker eq "none"} {
# nop
} else {
return -code error "unknown value '$whisker' for -whisker option"
}
#
# Draw the box and whiskers
#
set colour "black"
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
set mediancolour $colour
if { [info exists data_series($w,$series,-mediancolour)] } {
set mediancolour $data_series($w,$series,-mediancolour)
}
set mediancolour $colour
if { [info exists data_series($w,$series,-mediancolour)] } {
set mediancolour $data_series($w,$series,-mediancolour)
}
set filled "no"
if { [info exists data_series($w,$series,-filled)] } {
set filled $data_series($w,$series,-filled)
}
set fillcolour white
if { [info exists data_series($w,$series,-fillcolour)] } {
set fillcolour $data_series($w,$series,-fillcolour)
}
set boxwidth 10
if { [info exists data_series($w,$series,-boxwidth)] } {
set boxwidth $data_series($w,$series,-boxwidth)
}
set medianwidth 2
if { [info exists data_series($w,$series,-medianwidth)] } {
set medianwidth $data_series($w,$series,-medianwidth)
}
set whiskerwidth 1
if { [info exists data_series($w,$series,-whiskerwidth)] } {
set whiskerwidth $data_series($w,$series,-whiskerwidth)
}
if { $type == "h" } {
#
# Horizontal boxplot:
#
foreach {pxcrd1 pycrd2} [coordsToPixel $w $quartile1 $ycrd] {break}
foreach {pxcrd2 pycrd2} [coordsToPixel $w $quartile2 $ycrd] {break}
foreach {pxcrd3 pycrd2} [coordsToPixel $w $quartile3 $ycrd] {break}
if {$whisker ne "none"} {
foreach {pxcrdm pycrd1} [coordsToPixel $w $minimum $ycrd] {break}
foreach {pxcrdM pycrd2} [coordsToPixel $w $maximum $ycrd] {break}
set pycrd0h [expr {$pycrd1-$boxwidth/4}]
set pycrd2h [expr {$pycrd1+$boxwidth/4}]
} else {
foreach {- pycrd1} [coordsToPixel $w 0 $ycrd] {break}
}
set pycrd0 [expr {$pycrd1-$boxwidth/2}]
set pycrd2 [expr {$pycrd1+$boxwidth/2}]
if {$whisker ne "none"} {
#
# Left whisker:
#
$w create line $pxcrdm $pycrd1 $pxcrd1 $pycrd1 \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
$w create line $pxcrdm $pycrd0h $pxcrdm $pycrd2h \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
# right whisker:
#
# Right whisker:
#
$w create line $pxcrd3 $pycrd1 $pxcrdM $pycrd1 \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
$w create line $pxcrdM $pycrd0h $pxcrdM $pycrd2h \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
}
#
# Box:
#
$w create rectangle $pxcrd1 $pycrd0 $pxcrd3 $pycrd2 \
-outline $colour -fill $fillcolour -tag [list data data_$series]
#
# Median:
#
$w create line $pxcrd2 $pycrd0 $pxcrd2 $pycrd2 -width $medianwidth \
-fill $mediancolour -tag [list data data_$series]
if {$whisker eq "IQR"} {
foreach value $data {
if { $value < $outlower || $value > $outupper } {
foreach {px py} [coordsToPixel $w $value $ycrd] {break}
$w create text $px $py -text "*" -anchor c \
-fill $colour -tag [list data data_$series]
continue
}
if { $value < $lower || $value > $upper } {
foreach {px py} [coordsToPixel $w $value $ycrd] {break}
$w create oval [expr {$px-2}] [expr {$py-2}] \
[expr {$px+2}] [expr {$py+2}] \
-fill $colour -tag [list data data_$series]
continue
}
}
}
} else {
#
# Vertical boxplot:
#
foreach {pxcrd2 pycrd1} [coordsToPixel $w $xcrd $quartile1] {break}
foreach {pxcrd2 pycrd2} [coordsToPixel $w $xcrd $quartile2] {break}
foreach {pxcrd2 pycrd3} [coordsToPixel $w $xcrd $quartile3] {break}
if {$whisker ne "none"} {
foreach {pxcrd1 pycrdm} [coordsToPixel $w $xcrd $minimum] {break}
foreach {pxcrd2 pycrdM} [coordsToPixel $w $xcrd $maximum] {break}
set pxcrd0h [expr {$pxcrd1-$boxwidth/4}]
set pxcrd2h [expr {$pxcrd1+$boxwidth/4}]
} else {
foreach {pxcrd1 -} [coordsToPixel $w $xcrd 0] {break}
}
set pxcrd0 [expr {$pxcrd1-$boxwidth/2}]
set pxcrd2 [expr {$pxcrd1+$boxwidth/2}]
if {$whisker ne "none"} {
#
# Lower whisker:
#
$w create line $pxcrd1 $pycrdm $pxcrd1 $pycrd1 \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
$w create line $pxcrd0h $pycrdm $pxcrd2h $pycrdm \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
# upper whisker:
#
# Upper whisker:
#
$w create line $pxcrd1 $pycrd3 $pxcrd1 $pycrdM \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
$w create line $pxcrd0h $pycrdM $pxcrd2h $pycrdM \
-fill $colour -tag [list data data_$series] -width $whiskerwidth
}
#
# Box:
#
$w create rectangle $pxcrd0 $pycrd1 $pxcrd2 $pycrd3 \
-outline $colour -fill $fillcolour -tag [list data data_$series]
#
# Median:
#
$w create line $pxcrd0 $pycrd2 $pxcrd2 $pycrd2 -width $medianwidth \
-fill $mediancolour -tag [list data data_$series]
if {$whisker eq "IQR"} {
foreach value $data {
if { $value < $outlower || $value > $outupper } {
foreach {px py} [coordsToPixel $w $xcrd $value] {break}
$w create text $px $py -text "*" \
-fill $colour -tag [list data data_$series]
continue
}
if { $value < $lower || $value > $upper } {
foreach {px py} [coordsToPixel $w $xcrd $value] {break}
$w create oval [expr {$px-3}] [expr {$py-3}] \
[expr {$px+3}] [expr {$py+3}] \
-fill $colour -tag [list data data_$series]
continue
}
}
}
}
$w lower data
}
# DrawBoxData --
# Draw the data in a boxplot
# where either the x-axis or the y-axis consists of labels
# Arguments:
# w Name of the canvas
# series Data series
# label Label on the x- or y-axis to put the box on
# values List of values to plot the box and whiskers for
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawBoxData { w series label values } {
variable config
variable scaling
variable settings
set index [lsearch $config($w,axisnames) $label]
if { $index == -1 } {
return "Label $label not found on axis"
}
set coord [expr {$index + 1}]
if { $settings($w,orientation) eq "vertical" } {
DrawBoxWhiskers $w $series $coord $values
} else {
DrawBoxWhiskers $w $series $values $coord
}
}
# DrawPie --
# Draw the pie
# Arguments:
# w Name of the canvas
# data Data series (pairs of label-value)
# Result:
# None
# Side effects:
# Pie filled
#
proc ::Plotchart::DrawPie { w data } {
variable data_series
variable scaling
variable config
set pxmin $scaling($w,pxmin)
set pymin $scaling($w,pymin)
set pxmax $scaling($w,pxmax)
set pymax $scaling($w,pymax)
set colours $scaling(${w},colours)
if {[llength ${data}] == 2} {
# use canvas create oval as arc does not fill with colour for a full circle
set colour [lindex ${colours} 0]
${w} create oval ${pxmin} ${pymin} ${pxmax} ${pymax} -fill ${colour} \
-width $config($w,slice,outlinewidth) -outline $config($w,slice,outline)
# text looks nicer at 45 degree
set rad [expr {45.0 * 3.1415926 / 180.0}]
set xtext [expr {(${pxmin}+${pxmax}+cos(${rad})*(${pxmax}-${pxmin}+20))/2}]
set ytext [expr {(${pymin}+${pymax}-sin(${rad})*(${pymax}-${pymin}+20))/2}]
foreach {label value} ${data} {
break
}
if { $config($w,labels,shownumbers) } {
if { $config($w,labels,format) ne "" } {
set label [format $config($w,labels,formatright) $value $label]
} else {
set label [format $config($w,labels,format) $label $value]
}
}
${w} create text ${xtext} ${ytext} -text ${label} -anchor w -font $config($w,labels,font)
set scaling($w,angles) {0 360}
} else {
#
# Determine the scale for the values
# (so we can draw the correct angles)
#
set newdata {}
set sum 0.0
foreach {label value} $data {
lappend newdata [list $value $label]
set sum [expr {$sum + $value}]
}
set factor [expr {360.0/$sum}]
set data $newdata
if { $config($w,labels,sorted) } {
set data [lsort -index 0 -real $newdata]
}
#
# Draw the line piece
#
set angle_init $config($w,slice,startangle)
set op $config($w,slice,direction)
set sum 0.0
set idx 0
set segment 0
array unset scaling ${w},angles
array unset scaling ${w},extent
set colours [CycleColours ${colours} [expr {[llength ${data}] / 2}]]
foreach sublist $data {
foreach {value label} $sublist {break}
set colour [lindex $colours $idx]
incr idx
if { $value == "" } {
break
}
set angle_bgn [expr $angle_init $op ($sum * $factor)]
set angle_ext $op[expr {$value * $factor}]
lappend scaling(${w},angles) [expr {int(${angle_bgn})}]
lappend scaling(${w},extent) [expr {int(${angle_ext})}]
$w create arc $pxmin $pymin $pxmax $pymax \
-start $angle_bgn -extent $angle_ext \
-fill $colour -style pieslice -tag [list data segment_$segment] \
-width $config($w,slice,outlinewidth) -outline $config($w,slice,outline)
set rad [expr {($angle_bgn+0.5*$angle_ext)*3.1415926/180.0}]
# hack for label positioning 'out' or 'in':
if {$config($w,labels,placement) eq "out"} {
set xtext [expr {($pxmin+$pxmax+cos($rad)*($pxmax-$pxmin+20))/2}]
set ytext [expr {($pymin+$pymax-sin($rad)*($pymax-$pymin+20))/2}]
if { $xtext > ($pxmin+$pxmax)/2 } {
set dir w
} else {
set dir e
}
} elseif {$config($w,labels,placement) eq "in"} {
set dir c
set centerx [expr {$pxmax - ($pxmax-$pxmin)/2.0}]
set centery [expr {$pymax - ($pymax-$pymin)/2.0}]
# 33% from the center to the radius
set xtext [expr {$centerx + cos($rad)*($pxmax-$pxmin)*0.33}]
set ytext [expr {$centery - sin($rad)*($pymax-$pymin)*0.33}]
}
if { $config($w,labels,shownumbers) } {
if { $dir eq "w" && $config($w,labels,formatright) ne "" } {
set label [format $config($w,labels,formatright) $value $label]
} else {
set label [format $config($w,labels,format) $label $value]
}
}
$w create text $xtext $ytext -text $label -anchor $dir -tag segment_$segment \
-font $config($w,labels,font) -fill $config($w,labels,textcolor)
$w bind segment_$segment <ButtonPress-1> [list ::Plotchart::PieExplodeSegment $w $segment 1]
set sum [expr {$sum + $value}]
incr segment
}
}
}
# DrawSpiralPie --
# Draw the spiral pie
# Arguments:
# w Name of the canvas
# data Data series (pairs of label-value)
# Result:
# None
# Side effects:
# Pie filled
#
proc ::Plotchart::DrawSpiralPie { w data } {
variable data_series
variable scaling
variable config
set pxmin $scaling($w,pxmin)
set pymin $scaling($w,pymin)
set pxmax $scaling($w,pxmax)
set pymax $scaling($w,pymax)
set colours $scaling(${w},colours)
if {[llength ${data}] == 2} {
# use canvas create oval as arc does not fill with colour for a full circle
set colour [lindex ${colours} 0]
${w} create oval ${pxmin} ${pymin} ${pxmax} ${pymax} -fill ${colour} \
-width $config($w,slice,outlinewidth) -outline $config($w,slice,outline)
# text looks nicer at 45 degree
set rad [expr {45.0 * 3.1415926 / 180.0}]
set xtext [expr {(${pxmin}+${pxmax}+cos(${rad})*(${pxmax}-${pxmin}+20))/2}]
set ytext [expr {(${pymin}+${pymax}-sin(${rad})*(${pymax}-${pymin}+20))/2}]
foreach {label value} ${data} {
break
}
if { $config($w,labels,shownumbers) } {
if { $config($w,labels,format) ne "" } {
set label [format $config($w,labels,formatright) $value $label]
} else {
set label [format $config($w,labels,format) $label $value]
}
}
${w} create text ${xtext} ${ytext} -text ${label} -anchor w -font $config($w,labels,font)
set scaling($w,angles) {0 360}
} else {
#
# Determine the scale for the values
# (so we can draw the correct radii)
#
set maxvalue [lindex $data 1]
set newdata {}
foreach {label value} $data {
lappend newdata [list $value $label]
if { $maxvalue < $value } {
set maxvalue $value
}
}
set data $newdata
if { $config($w,labels,sorted) } {
set data [lsort -index 0 -real $newdata]
}
set factor [expr {1.0/sqrt($maxvalue)}]
set dangle [expr {360.0/[llength $data]}]
#
# Draw the line piece
#
set angle_init $config($w,slice,startangle)
set op $config($w,slice,direction)
set sum 0.0
set idx 0
set segment 0
array unset scaling ${w},angles
array unset scaling ${w},extent
set colours [CycleColours ${colours} [llength ${data}]]
foreach sublist $data {
foreach {value label} $sublist {break}
set colour [lindex $colours $idx]
incr idx
if { $value == "" } {
break
}
set angle_bgn [expr $angle_init $op $sum]
set angle_ext [expr $op $dangle]
lappend scaling(${w},angles) [expr {int(${angle_bgn})}]
lappend scaling(${w},extent) [expr {int(${angle_ext})}]
set slicexmin [expr {0.5 * ($pxmax + $pxmin - sqrt($value) * $factor * ($pxmax-$pxmin))}]
set slicexmax [expr {0.5 * ($pxmax + $pxmin + sqrt($value) * $factor * ($pxmax-$pxmin))}]
set sliceymin [expr {0.5 * ($pymax + $pymin - sqrt($value) * $factor * ($pymax-$pymin))}]
set sliceymax [expr {0.5 * ($pymax + $pymin + sqrt($value) * $factor * ($pymax-$pymin))}]
$w create arc $slicexmin $sliceymin $slicexmax $sliceymax \
-start $angle_bgn -extent $angle_ext \
-fill $colour -style pieslice -tag [list data segment_$segment] \
-width $config($w,slice,outlinewidth) -outline $config($w,slice,outline)
set rad [expr {($angle_bgn+0.5*$angle_ext)*3.1415926/180.0}]
# hack for label positioning 'out' or 'in':
if {$config($w,labels,placement) eq "out"} {
set xtext [expr {($slicexmin+$slicexmax+cos($rad)*($slicexmax-$slicexmin+20))/2}]
set ytext [expr {($sliceymin+$sliceymax-sin($rad)*($sliceymax-$sliceymin+20))/2}]
if { $xtext > ($slicexmin+$sliceymax)/2 } {
set dir w
} else {
set dir e
}
} elseif {$config($w,labels,placement) eq "in"} {
set dir c
set centerx [expr {$slicexmax - ($slicexmax-$slicexmin)/2.0}]
set centery [expr {$sliceymax - ($sliceymax-$sliceymin)/2.0}]
# 33% from the center to the radius
set xtext [expr {$centerx + cos($rad)*($slicexmax-$slicexmin)*0.33}]
set ytext [expr {$centery - sin($rad)*($sliceymax-$sliceymin)*0.33}]
}
if { $config($w,labels,shownumbers) } {
if { $dir eq "w" && $config($w,labels,formatright) ne "" } {
set label [format $config($w,labels,formatright) $value $label]
} else {
set label [format $config($w,labels,format) $label $value]
}
}
$w create text $xtext $ytext -text $label -anchor $dir -tag segment_$segment \
-font $config($w,labels,font) -fill $config($w,labels,textcolor)
$w bind segment_$segment <ButtonPress-1> [list ::Plotchart::PieExplodeSegment $w $segment 1]
set sum [expr {$sum + $dangle}]
incr segment
}
}
}
# DrawPolarData --
# Draw data given in polar coordinates
# Arguments:
# w Name of the canvas
# series Data series
# rad Next radius
# phi Next angle (in degrees)
# Result:
# None
# Side effects:
# Data drawn in canvas
#
proc ::Plotchart::DrawPolarData { w series rad phi } {
variable torad
set xcrd [expr {$rad*cos($phi*$torad)}]
set ycrd [expr {$rad*sin($phi*$torad)}]
DrawData $w $series $xcrd $ycrd
}
# DrawVertBarData --
# Draw the vertical bars
# Arguments:
# w Name of the canvas
# series Data series
# ydata Series of y data
# colour The colour to use (optional)
# dir Direction if graded colours are used (see DrawGradientBackground)
# brightness Brighten (bright) or darken (dark) the colours
# Result:
# None
# Side effects:
# Data bars drawn in canvas
#
proc ::Plotchart::DrawVertBarData { w series ydata {colour black} {dir {}} {brightness bright}} {
variable data_series
variable scaling
variable legend
variable settings
variable config
#
# Draw the bars
#
set x $scaling($w,xbase)
#
# set the colours
#
if {[llength ${colour}]} {
set colours ${colour}
} elseif {[info exists scaling(${w},colours)]} {
set colours $scaling(${w},colours)
} else {
set colours {}
}
set colours [CycleColours ${colours} [llength ${ydata}]]
#
# Legend information
#
set legendcol [lindex $colours 0]
set data_series($w,$series,-colour) $legendcol
set data_series($w,$series,-type) rectangle
if { [info exists legend($w,canvas)] } {
set legendw $legend($w,canvas)
$legendw itemconfigure $series -fill $legendcol
}
set newbase {}
set idx 0
foreach yvalue $ydata ybase $scaling($w,ybase) {
set colour [lindex ${colours} ${idx}]
incr idx
if { $yvalue == "" } {
set yvalue 0.0
}
set xnext [expr {$x+$scaling($w,barwidth)}]
set y [expr {$yvalue+$ybase}]
foreach {px1 py1} [coordsToPixel $w $x $ybase] {break}
foreach {px2 py2} [coordsToPixel $w $xnext $y ] {break}
if { $dir == {} } {
$w create rectangle $px1 $py1 $px2 $py2 \
-fill $colour -outline $config($w,bar,outline) -tag [list data $w data_$series]
} else {
if { $brightness == "dark" } {
set intensity black
} else {
set intensity white
}
DrawGradientBackground $w $colour $dir $intensity [list $px1 $py1 $px2 $py2]
}
if { $settings($w,showvalues) } {
set pxtext [expr {($px1+$px2)/2.0}]
set pytext [expr {$py2-5}]
set text [format $settings($w,valueformat) $yvalue]
if { $settings($w,valuefont) == "" } {
$w create text $pxtext $pytext -text $text -anchor s \
-fill $settings($w,valuecolour) -tag [list data $w data_$series]
} else {
$w create text $pxtext $pytext -text $text -anchor s \
-fill $settings($w,valuecolour) -tag [list data $w data_$series] \
-font $settings($w,valuefont)
}
}
$w lower [list data && $w]
set x [expr {$x+1.0}]
lappend newbase $y
}
#
# Prepare for the next series
#
if { $scaling($w,stacked) } {
set scaling($w,ybase) $newbase
}
set scaling($w,xbase) [expr {$scaling($w,xbase)+$scaling($w,xshift)}]
}
# DrawHorizBarData --
# Draw the horizontal bars
# Arguments:
# w Name of the canvas
# series Data series
# xdata Series of x data
# colour The colour to use (optional)
# dir Direction if graded colours are used (see DrawGradientBackground)
# brightness Brighten (bright) or darken (dark) the colours
# Result:
# None
# Side effects:
# Data bars drawn in canvas
#
proc ::Plotchart::DrawHorizBarData { w series xdata {colour black} {dir {}} {brightness bright}} {
variable data_series
variable scaling
variable legend
variable settings
variable config
#
# Draw the bars
#
set y $scaling($w,ybase)
#
# set the colours
#
if {[llength ${colour}]} {
set colours ${colour}
} elseif {[info exists scaling(${w},colours)]} {
set colours $scaling(${w},colours)
} else {
set colours {}
}
set colours [CycleColours ${colours} [llength ${xdata}]]
#
# Legend information
#
set legendcol [lindex $colours 0]
set data_series($w,$series,-colour) $legendcol
if { [info exists legend($w,canvas)] } {
set legendw $legend($w,canvas)
$legendw itemconfigure $series -fill $legendcol
}
set newbase {}
set idx 0
foreach xvalue $xdata xbase $scaling($w,xbase) {
set colour [lindex ${colours} ${idx}]
incr idx
if { $xvalue == "" } {
set xvalue 0.0
}
set ynext [expr {$y+$scaling($w,barwidth)}]
set x [expr {$xvalue+$xbase}]
foreach {px1 py1} [coordsToPixel $w $xbase $y ] {break}
foreach {px2 py2} [coordsToPixel $w $x $ynext] {break}
if { $dir == {} } {
$w create rectangle $px1 $py1 $px2 $py2 \
-fill $colour -outline $config($w,bar,outline) -tag [list data $w data_$series]
} else {
if { $brightness == "dark" } {
set intensity black
} else {
set intensity white
}
DrawGradientBackground $w $colour $dir $intensity [list $px1 $py1 $px2 $py2]
}
if { $settings($w,showvalues) } {
set pytext [expr {($py1+$py2)/2.0}]
set pxtext [expr {$px2+5}]
set text [format $settings($w,valueformat) $xvalue]
if { $settings($w,valuefont) == "" } {
$w create text $pxtext $pytext -text $text -anchor w \
-fill $settings($w,valuecolour) -tag [list data $w data_$series]
} else {
$w create text $pxtext $pytext -text $text -anchor w \
-fill $settings($w,valuecolour) -tag [list data $w data_$series] \
-font $settings($w,valuefont)
}
}
$w lower [list data && $w]
set y [expr {$y+1.0}]
lappend newbase $x
}
#
# Prepare for the next series
#
if { $scaling($w,stacked) } {
set scaling($w,xbase) $newbase
}
set scaling($w,ybase) [expr {$scaling($w,ybase)+$scaling($w,yshift)}]
}
# DrawHistogramData --
# Draw the vertical bars (or lines or symbols) for a histogram
# Arguments:
# w Name of the canvas
# series Data series
# xcrd X coordinate (for the righthand side of the bar)
# ycrd Y coordinate
# Result:
# None
# Side effects:
# Data bars drawn in canvas
#
proc ::Plotchart::DrawHistogramData { w series xcrd ycrd } {
variable data_series
variable scaling
#
# Check for missing values (only y-value can be missing!)
#
if { $ycrd == "" } {
set data_series($w,$series,x) $xcrd
return
}
#
# Draw the bar/line
#
set colour "black"
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
set fillcolour "black"
if { [info exists data_series($w,$series,-fillcolour)] } {
set fillcolour $data_series($w,$series,-fillcolour)
}
set width 1
if { [info exists data_series($w,$series,-width)] } {
set width $data_series($w,$series,-width)
}
set style "filled"
if { [info exists data_series($w,$series,-style)] } {
set style $data_series($w,$series,-style)
}
if { $style == "symbol" } {
set symbol "plus"
if { [info exists data_series($w,$series,-symbol)] } {
set symbol $data_series($w,$series,-symbol)
}
}
foreach {pxcrd pycrd} [coordsToPixel $w $xcrd $ycrd] {break}
if { [info exists data_series($w,$series,x)] } {
set xold $data_series($w,$series,x)
set pystair $data_series($w,$series,pystair)
} else {
set xold $scaling($w,xmin)
set pystair $scaling($w,pymax)
}
set yold $scaling($w,ymin)
foreach {pxold pyold} [coordsToPixel $w $xold $yold] {break}
switch -- $style {
"filled" {
$w create rectangle $pxold $pyold $pxcrd $pycrd \
-fill $fillcolour -outline {} -tag [list data $w data_$series]
$w create line $pxold $pystair $pxold $pycrd $pxcrd $pycrd \
-fill $colour -width $width -tag [list data $w data_$series]
}
"stair" {
$w create line $pxold $pystair $pxold $pycrd $pxcrd $pycrd \
-fill $colour -width $width -tag [list data $w data_$series]
}
"spike" {
$w create line $pxcrd $pyold $pxcrd $pycrd \
-fill $colour -width $width -tag [list data $w data_$series]
}
"plateau" {
$w create line $pxold $pycrd $pxold $pycrd $pxcrd $pycrd \
-fill $colour -width $width -tag [list data $w data_$series]
}
"symbol" {
DrawSymbolPixel $w $series $pxcrd $pycrd $symbol $colour [list data $w data_$series]
}
}
$w lower [list data && $w]
set data_series($w,$series,x) $xcrd
set data_series($w,$series,pystair) $pycrd
#
# Store the data for use in bindlast subcommand
#
set data_series($w,$series,px1) $pxold
set data_series($w,$series,py1) $pyold
set data_series($w,$series,px2) $pxcrd
set data_series($w,$series,py2) $pycrd
if { $style == "symbol" } {
set data_series($w,$series,px1) $pxcrd
set data_series($w,$series,py1) $pycrd
}
}
# DrawHistogramCumulative --
# Draw the vertical bars for a histogram - accumulate the data
# Arguments:
# w Name of the canvas
# series Data series
# xcrd X coordinate (for the righthand side of the bar)
# ycrd Y coordinate
# Result:
# None
# Side effects:
# Data bars drawn in canvas
#
proc ::Plotchart::DrawHistogramCumulative { w series xcrd ycrd } {
variable data_series
variable scaling
#
# Check for missing values (only y-value can be missing!)
#
if { $ycrd == "" } {
set data_series($w,$series,x) $xcrd
return
}
#
# Prepare the data
#
if { [info exists data_series($w,$series,y)] } {
set ycrd [expr {$data_series($w,$series,y) + $ycrd}]
}
DrawHistogramData $w $series $xcrd $ycrd
set data_series($w,$series,y) $ycrd
}
# DrawTimePeriod --
# Draw a period
# Arguments:
# w Name of the canvas
# text Text to identify the "period" item
# time_begin Start time
# time_end Stop time
# colour The colour to use (optional)
# Result:
# None
# Side effects:
# Data bars drawn in canvas
#
proc ::Plotchart::DrawTimePeriod { w text time_begin time_end {colour black}} {
variable data_series
variable scaling
#
# Draw the text first
#
set ytext [expr {$scaling($w,current)+0.5*$scaling($w,dy)}]
foreach {x y} [coordsToPixel $w $scaling($w,xmin) $ytext] {break}
$w create text 5 $y -text $text -anchor w \
-tags [list vertscroll above item_[expr {int($scaling($w,current))}]]
#
# Draw the bar to indicate the period
#
set xmin [clock scan $time_begin]
set xmax [clock scan $time_end]
set ybott [expr {$scaling($w,current)+$scaling($w,dy)}]
foreach {x1 y1} [coordsToPixel $w $xmin $scaling($w,current)] {break}
foreach {x2 y2} [coordsToPixel $w $xmax $ybott ] {break}
$w create rectangle $x1 $y1 $x2 $y2 -fill $colour \
-tags [list $w vertscroll horizscroll below item_[expr {int($scaling($w,current))}]]
ReorderChartItems $w
set scaling($w,current) [expr {$scaling($w,current)-1.0}]
RescaleChart $w
}
# DrawTimeVertLine --
# Draw a vertical line with a label
# Arguments:
# w Name of the canvas
# text Text to identify the line
# time Time for which the line is drawn
# Result:
# None
# Side effects:
# Line drawn in canvas
#
proc ::Plotchart::DrawTimeVertLine { w text time {colour black}} {
variable data_series
variable scaling
#
# Draw the text first
#
set xtime [clock scan $time]
#set ytext [expr {$scaling($w,ymax)-0.5*$scaling($w,dy)}]
set ytext $scaling($w,ymax)
foreach {x y} [coordsToPixel $w $xtime $ytext] {break}
set y [expr {$y-5}]
$w create text $x $y -text $text -anchor sw -tags [list $w horizscroll timeline]
#
# Draw the line
#
foreach {x1 y1} [coordsToPixel $w $xtime $scaling($w,ymin)] {break}
foreach {x2 y2} [coordsToPixel $w $xtime $scaling($w,ymax)] {break}
$w create line $x1 $y1 $x2 $y2 -fill black -tags [list $w horizscroll timeline tline]
$w raise topmask
}
# DrawTimeMilestone --
# Draw a "milestone"
# Arguments:
# w Name of the canvas
# text Text to identify the line
# time Time for which the milestone is drawn
# colour Optionally the colour
# Result:
# None
# Side effects:
# Line drawn in canvas
#
proc ::Plotchart::DrawTimeMilestone { w text time {colour black}} {
variable data_series
variable scaling
#
# Draw the text first
#
set ytext [expr {$scaling($w,current)+0.5*$scaling($w,dy)}]
foreach {x y} [coordsToPixel $w $scaling($w,xmin) $ytext] {break}
$w create text 5 $y -text $text -anchor w \
-tags [list vertscroll above item_[expr {int($scaling($w,current))}]]
#
# Draw an upside-down triangle to indicate the time
#
set xcentre [clock scan $time]
set ytop $scaling($w,current)
set ybott [expr {$scaling($w,current)+0.8*$scaling($w,dy)}]
foreach {x1 y1} [coordsToPixel $w $xcentre $ybott] {break}
foreach {x2 y2} [coordsToPixel $w $xcentre $ytop] {break}
set x2 [expr {$x1-0.4*($y1-$y2)}]
set x3 [expr {$x1+0.4*($y1-$y2)}]
set y3 $y2
$w create polygon $x1 $y1 $x2 $y2 $x3 $y3 -fill $colour \
-tags [list $w vertscroll horizscroll below item_[expr {int($scaling($w,current))}]]
ReorderChartItems $w
set scaling($w,current) [expr {$scaling($w,current)-1.0}]
RescaleChart $w
}
# ScaleItems --
# Scale all items by a given factor
# Arguments:
# w Name of the canvas
# xcentre X-coordinate of centre
# ycentre Y-coordinate of centre
# factor The factor to scale them by
# Result:
# None
# Side effects:
# All items are scaled by the given factor and the
# world coordinates are adjusted.
#
proc ::Plotchart::ScaleItems { w xcentre ycentre factor } {
variable scaling
$w scale all $xcentre $ycentre $factor $factor
foreach {xc yc} [pixelToCoords $w $xcentre $ycentre] {break}
set rfact [expr {1.0/$factor}]
set scaling($w,xfactor) [expr {$scaling($w,xfactor)*$factor}]
set scaling($w,yfactor) [expr {$scaling($w,yfactor)*$factor}]
set scaling($w,xmin) [expr {(1.0-$rfact)*$xc+$rfact*$scaling($w,xmin)}]
set scaling($w,xmax) [expr {(1.0-$rfact)*$xc+$rfact*$scaling($w,xmax)}]
set scaling($w,ymin) [expr {(1.0-$rfact)*$yc+$rfact*$scaling($w,ymin)}]
set scaling($w,ymax) [expr {(1.0-$rfact)*$yc+$rfact*$scaling($w,ymax)}]
}
# MoveItems --
# Move all items by a given vector
# Arguments:
# w Name of the canvas
# xmove X-coordinate of move vector
# ymove Y-coordinate of move vector
# Result:
# None
# Side effects:
# All items are moved by the given vector and the
# world coordinates are adjusted.
#
proc ::Plotchart::MoveItems { w xmove ymove } {
variable scaling
$w move all $xmove $ymove
set dx [expr {$scaling($w,xfactor)*$xmove}]
set dy [expr {$scaling($w,yfactor)*$ymove}]
set scaling($w,xmin) [expr {$scaling($w,xmin)+$dx}]
set scaling($w,xmax) [expr {$scaling($w,xmax)+$dx}]
set scaling($w,ymin) [expr {$scaling($w,ymin)+$dy}]
set scaling($w,ymax) [expr {$scaling($w,ymax)+$dy}]
}
# DrawIsometricData --
# Draw the data in an isometric plot
# Arguments:
# w Name of the canvas
# type Type of data
# args Coordinates and so on
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawIsometricData { w type args } {
variable data_series
#
# What type of data?
#
if { $type == "rectangle" } {
foreach {x1 y1 x2 y2 colour} [concat $args "black"] {break}
foreach {px1 py1} [coordsToPixel $w $x1 $y1] {break}
foreach {px2 py2} [coordsToPixel $w $x2 $y2] {break}
$w create rectangle $px1 $py1 $px2 $py2 \
-outline $colour -tag [list $w data]
$w lower data
}
if { $type == "filled-rectangle" } {
foreach {x1 y1 x2 y2 colour} [concat $args "black"] {break}
foreach {px1 py1} [coordsToPixel $w $x1 $y1] {break}
foreach {px2 py2} [coordsToPixel $w $x2 $y2] {break}
$w create rectangle $px1 $py1 $px2 $py2 \
-outline $colour -fill $colour -tag [list $w data]
$w lower [list data && $w]
}
if { $type == "filled-circle" } {
foreach {x1 y1 rad colour} [concat $args "black"] {break}
set x2 [expr {$x1+$rad}]
set y2 [expr {$y1+$rad}]
set x1 [expr {$x1-$rad}]
set y1 [expr {$y1-$rad}]
foreach {px1 py1} [coordsToPixel $w $x1 $y1] {break}
foreach {px2 py2} [coordsToPixel $w $x2 $y2] {break}
$w create oval $px1 $py1 $px2 $py2 \
-outline $colour -fill $colour -tag [list $w data]
$w lower [list data && $w]
}
if { $type == "circle" } {
foreach {x1 y1 rad colour} [concat $args "black"] {break}
set x2 [expr {$x1+$rad}]
set y2 [expr {$y1+$rad}]
set x1 [expr {$x1-$rad}]
set y1 [expr {$y1-$rad}]
foreach {px1 py1} [coordsToPixel $w $x1 $y1] {break}
foreach {px2 py2} [coordsToPixel $w $x2 $y2] {break}
$w create oval $px1 $py1 $px2 $py2 \
-outline $colour -tag [list $w data]
$w lower [list data && $w]
}
}
# BackgroundColour --
# Set the background colour or other aspects of the background
# Arguments:
# w Name of the canvas
# part Which part: axes or plot
# colour Colour to use (or if part is "image", name of the image)
# dir Direction of increasing whiteness (optional, for "gradient"
# brightness Brighten (bright) or darken (dark) the colours
#
# Result:
# None
# Side effect:
# Colour of the relevant part is changed
#
proc ::Plotchart::BackgroundColour { w part colour {dir {}} {brighten bright}} {
if { $part == "axes" } {
$w configure -highlightthickness 0
$w itemconfigure mask -fill $colour -outline $colour
}
if { $part == "plot" } {
$w configure -highlightthickness 0
$w configure -background $colour
}
if { $part == "gradient" } {
if { $brighten == "dark" } {
set intensity black
} else {
set intensity white
}
DrawGradientBackground $w $colour $dir $intensity
}
if { $part == "image" } {
DrawImageBackground $w $colour
}
}
# DrawRadialSpokes --
# Draw the spokes of the radial chart
# Arguments:
# w Name of the canvas
# names Names of the spokes
# Result:
# None
# Side effects:
# Radial chart filled in
#
proc ::Plotchart::DrawRadialSpokes { w names } {
variable settings
variable scaling
set pxmin $scaling($w,pxmin)
set pymin $scaling($w,pymin)
set pxmax $scaling($w,pxmax)
set pymax $scaling($w,pymax)
$w create oval $pxmin $pymin $pxmax $pymax -outline black
set dangle [expr {2.0 * 3.1415926 / [llength $names]}]
set angle 0.0
set xcentr [expr {($pxmin+$pxmax)/2.0}]
set ycentr [expr {($pymin+$pymax)/2.0}]
foreach name $names {
set xtext [expr {$xcentr+cos($angle)*($pxmax-$pxmin+20)/2}]
set ytext [expr {$ycentr-sin($angle)*($pymax-$pymin+20)/2}]
set xspoke [expr {$xcentr+cos($angle)*($pxmax-$pxmin)/2}]
set yspoke [expr {$ycentr-sin($angle)*($pymax-$pymin)/2}]
if { cos($angle) >= 0.0 } {
set anchor w
} else {
set anchor e
}
if { abs($xspoke-$xcentr) < 2 } {
set xspoke $xcentr
}
if { abs($yspoke-$ycentr) < 2 } {
set yspoke $ycentr
}
$w create text $xtext $ytext -text $name -anchor $anchor
$w create line $xcentr $ycentr $xspoke $yspoke -fill black
set angle [expr {$angle+$dangle}]
}
}
# DrawRadial --
# Draw the data for the radial chart
# Arguments:
# w Name of the canvas
# values Values for each spoke
# colour Colour of the line
# thickness Thickness of the line (optional)
# Result:
# None
# Side effects:
# New line drawn
#
proc ::Plotchart::DrawRadial { w values colour {thickness 1} } {
variable data_series
variable settings
variable scaling
if { [llength $values] != $settings($w,number) } {
return -code error "Incorrect number of data given - should be $settings($w,number)"
}
set pxmin $scaling($w,pxmin)
set pymin $scaling($w,pymin)
set pxmax $scaling($w,pxmax)
set pymax $scaling($w,pymax)
set dangle [expr {2.0 * 3.1415926 / [llength $values]}]
set angle 0.0
set xcentr [expr {($pxmin+$pxmax)/2.0}]
set ycentr [expr {($pymin+$pymax)/2.0}]
set coords {}
if { ! [info exists data_series($w,base)] } {
set data_series($w,base) {}
foreach value $values {
lappend data_series($w,base) 0.0
}
}
set newbase {}
foreach value $values base $data_series($w,base) {
if { $settings($w,style) != "lines" } {
set value [expr {$value+$base}]
}
set factor [expr {$value/$settings($w,scale)}]
set xspoke [expr {$xcentr+$factor*cos($angle)*($pxmax-$pxmin)/2}]
set yspoke [expr {$ycentr-$factor*sin($angle)*($pymax-$pymin)/2}]
if { abs($xspoke-$xcentr) < 2 } {
set xspoke $xcentr
}
if { abs($yspoke-$ycentr) < 2 } {
set yspoke $ycentr
}
lappend coords $xspoke $yspoke
lappend newbase $value
set angle [expr {$angle+$dangle}]
}
set data_series($w,base) $newbase
if { $settings($w,style) == "filled" } {
set fillcolour $colour
} else {
set fillcolour ""
}
set id [$w create polygon $coords -outline $colour -width $thickness -fill $fillcolour -tags [list data $w]]
$w lower $id
}
# DrawTrendLine --
# Draw a trend line based on the given data in an XY-plot
# Arguments:
# w Name of the canvas
# series Data series
# xcrd Next x coordinate
# ycrd Next y coordinate
# Result:
# None
# Side effects:
# New/updated trend line drawn in canvas
#
proc ::Plotchart::DrawTrendLine { w series xcrd ycrd } {
variable data_series
variable scaling
#
# Check for missing values
#
if { $xcrd == "" || $ycrd == "" } {
return
}
#
# Compute the coefficients of the line
#
if { [info exists data_series($w,$series,xsum)] } {
set nsum [expr {$data_series($w,$series,nsum) + 1.0}]
set xsum [expr {$data_series($w,$series,xsum) + $xcrd}]
set x2sum [expr {$data_series($w,$series,x2sum) + $xcrd*$xcrd}]
set ysum [expr {$data_series($w,$series,ysum) + $ycrd}]
set xysum [expr {$data_series($w,$series,xysum) + $ycrd*$xcrd}]
} else {
set nsum [expr {1.0}]
set xsum [expr {$xcrd}]
set x2sum [expr {$xcrd*$xcrd}]
set ysum [expr {$ycrd}]
set xysum [expr {$ycrd*$xcrd}]
}
if { $nsum*$x2sum != $xsum*$xsum } {
set a [expr {($nsum*$xysum-$xsum*$ysum)/($nsum*$x2sum - $xsum*$xsum)}]
} else {
set a 0.0
}
set b [expr {($ysum-$a*$xsum)/$nsum}]
set xmin $scaling($w,xmin)
set xmax $scaling($w,xmax)
foreach {pxmin pymin} [coordsToPixel $w $xmin [expr {$a*$xmin+$b}]] {break}
foreach {pxmax pymax} [coordsToPixel $w $xmax [expr {$a*$xmax+$b}]] {break}
#
# Draw the actual line
#
set colour "black"
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
if { [info exists data_series($w,$series,trend)] } {
$w coords $data_series($w,$series,trend) $pxmin $pymin $pxmax $pymax
} else {
set data_series($w,$series,trend) \
[$w create line $pxmin $pymin $pxmax $pymax -fill $colour -tag [list data $w data_$series]]
}
$w lower [list data && $w]
set data_series($w,$series,nsum) $nsum
set data_series($w,$series,xsum) $xsum
set data_series($w,$series,x2sum) $x2sum
set data_series($w,$series,ysum) $ysum
set data_series($w,$series,xysum) $xysum
}
# VectorConfigure --
# Set configuration options for vectors
# Arguments:
# w Name of the canvas
# series Data series (identifier for vectors)
# args Pairs of configuration options:
# -scale|-colour|-centred|-type {cartesian|polar|nautical}
# Result:
# None
# Side effects:
# Configuration options are stored
#
proc ::Plotchart::VectorConfigure { w series args } {
variable data_series
variable scaling
foreach {option value} $args {
switch -- $option {
"-scale" {
if { $value > 0.0 } {
set scaling($w,$series,vectorscale) $value
} else {
return -code error "Scale factor must be positive"
}
}
"-colour" - "-color" {
set data_series($w,$series,vectorcolour) $value
}
"-centered" - "-centred" {
set data_series($w,$series,vectorcentred) $value
}
"-type" {
if { [lsearch {cartesian polar nautical} $value] >= 0 } {
set data_series($w,$series,vectortype) $value
} else {
return -code error "Unknown vector components option: $value"
}
}
default {
return -code error "Unknown vector option: $option ($value)"
}
}
}
}
# DrawVector --
# Draw a vector at the given coordinates with the given components
# Arguments:
# w Name of the canvas
# series Data series (identifier for the vectors)
# xcrd X coordinate of start or centre
# ycrd Y coordinate of start or centre
# ucmp X component or length
# vcmp Y component or angle
# Result:
# None
# Side effects:
# New arrow drawn in canvas
#
proc ::Plotchart::DrawVector { w series xcrd ycrd ucmp vcmp } {
variable data_series
variable scaling
#
# Check for missing values
#
if { $xcrd == "" || $ycrd == "" } {
return
}
#
# Check for missing values
#
if { $ucmp == "" || $vcmp == "" } {
return
}
#
# Get the options
#
set scalef 1.0
set colour black
set centred 0
set type cartesian
if { [info exists scaling($w,$series,vectorscale)] } {
set scalef $scaling($w,$series,vectorscale)
}
if { [info exists data_series($w,$series,vectorcolour)] } {
set colour $data_series($w,$series,vectorcolour)
}
if { [info exists data_series($w,$series,vectorcentred)] } {
set centred $data_series($w,$series,vectorcentred)
}
if { [info exists data_series($w,$series,vectortype)] } {
set type $data_series($w,$series,vectortype)
}
#
# Compute the coordinates of beginning and end of the arrow
#
switch -- $type {
"polar" {
set x1 [expr {$ucmp * cos( 3.1415926 * $vcmp / 180.0 ) }]
set y1 [expr {$ucmp * sin( 3.1415926 * $vcmp / 180.0 ) }]
set ucmp $x1
set vcmp $y1
}
"nautical" {
set x1 [expr {$ucmp * sin( 3.1415926 * $vcmp / 180.0 ) }]
set y1 [expr {$ucmp * cos( 3.1415926 * $vcmp / 180.0 ) }]
set ucmp $x1
set vcmp $y1
}
}
set u1 [expr {$scalef * $ucmp}]
set v1 [expr {$scalef * $vcmp}]
foreach {x1 y1} [coordsToPixel $w $xcrd $ycrd] {break}
if { $centred } {
set x1 [expr {$x1 - 0.5 * $u1}]
set y1 [expr {$y1 + 0.5 * $v1}]
}
set x2 [expr {$x1 + $u1}]
set y2 [expr {$y1 - $v1}]
#
# Draw the arrow
#
$w create line $x1 $y1 $x2 $y2 -fill $colour -tag [list data $w data_$series] -arrow last
$w lower data
}
# DotConfigure --
# Set configuration options for dots
# Arguments:
# w Name of the canvas
# series Data series (identifier for dots)
# args Pairs of configuration options:
# -radius|-colour|-classes {value colour ...}|-outline|-scalebyvalue|
# -scale
# Result:
# None
# Side effects:
# Configuration options are stored
#
proc ::Plotchart::DotConfigure { w series args } {
variable data_series
variable scaling
foreach {option value} $args {
switch -- $option {
"-scale" {
if { $value > 0.0 } {
set scaling($w,$series,dotscale) $value
} else {
return -code error "Scale factor must be positive"
}
}
"-colour" - "-color" {
set data_series($w,$series,dotcolour) $value
}
"-radius" {
set data_series($w,$series,dotradius) $value
}
"-scalebyvalue" {
set data_series($w,$series,dotscalebyvalue) $value
}
"-outline" {
set data_series($w,$series,dotoutline) $value
}
"-classes" {
set data_series($w,$series,dotclasses) $value
}
"-3deffect" {
set data_series($w,$series,dot3deffect) $value
}
default {
return -code error "Unknown dot option: $option ($value)"
}
}
}
}
# DrawDot --
# Draw a dot at the given coordinates, size and colour based on the given value
# Arguments:
# w Name of the canvas
# series Data series (identifier for the vectors)
# xcrd X coordinate of start or centre
# ycrd Y coordinate of start or centre
# value Value to be used
# Result:
# None
# Side effects:
# New oval drawn in canvas
#
proc ::Plotchart::DrawDot { w series xcrd ycrd value } {
variable data_series
variable scaling
#
# Check for missing values
#
if { $xcrd == "" || $ycrd == "" || $value == "" } {
return
}
#
# Get the options
#
set scalef 1.0
set colour black
set usevalue 1
set outline black
set radius 3
set classes {}
set use3deffect off
if { [info exists scaling($w,$series,dotscale)] } {
set scalef $scaling($w,$series,dotscale)
}
if { [info exists data_series($w,$series,dotcolour)] } {
set colour $data_series($w,$series,dotcolour)
}
if { [info exists data_series($w,$series,dotoutline)] } {
set outline {}
if { $data_series($w,$series,dotoutline) } {
set outline black
}
}
if { [info exists data_series($w,$series,dotradius)] } {
set radius $data_series($w,$series,dotradius)
}
if { [info exists data_series($w,$series,dotclasses)] } {
set classes $data_series($w,$series,dotclasses)
}
if { [info exists data_series($w,$series,dotscalebyvalue)] } {
set usevalue $data_series($w,$series,dotscalebyvalue)
}
if { [info exists data_series($w,$series,dot3deffect)] } {
set use3deffect $data_series($w,$series,dot3deffect)
}
#
# Compute the radius and the colour
#
if { $usevalue } {
set radius [expr {$scalef * $value}]
}
if { $classes != {} } {
foreach {limit col} $classes {
if { $value < $limit } {
set colour $col
break
}
}
}
foreach {x y} [coordsToPixel $w $xcrd $ycrd] {break}
set x1 [expr {$x - $radius}]
set y1 [expr {$y - $radius}]
set x2 [expr {$x + $radius}]
set y2 [expr {$y + $radius}]
#
# Draw the oval
#
$w create oval $x1 $y1 $x2 $y2 -fill $colour -tag [list data $w data_$series] -outline $outline
#
# 3D effect
#
if { $use3deffect } {
set xcentre [expr {$x - 0.6 * $radius}]
set ycentre [expr {$y - 0.6 * $radius}]
set factor 1.0
set newradius $radius
while { $newradius > 2 } {
set factor [expr {$factor * 0.8}]
set newradius [expr {$radius * $factor}]
set newcolour [BrightenColour $colour white [expr {1.0-$factor**2}]]
set newdot [$w create oval $x1 $y1 $x2 $y2 -fill $newcolour -outline {} \
-tag [list data $w data_$series]]
$w scale $newdot $xcentre $ycentre $factor $factor
}
}
$w lower [list data && $w]
}
# DrawLog*Dot, DrawPolarDot --
# Draw a dot at the given coordinates - variants for logarithmic axes and polar axis
# Arguments:
# w Name of the canvas
# series Data series (identifier for the vectors)
# xcrd X coordinate of start or centre
# ycrd Y coordinate of start or centre
# value Value to be used
# Result:
# None
# Side effects:
# New oval drawn in canvas
#
proc ::Plotchart::DrawLogXDot { w series xcrd ycrd value } {
DrawDot $w $series [expr {log10($xcrd)}] $ycrd $value
}
proc ::Plotchart::DrawLogYDot { w series xcrd ycrd value } {
DrawDot $w $series $xcrd [expr {log10($ycrd)}] $value
}
proc ::Plotchart::DrawLogXLogYDot { w series xcrd ycrd value } {
DrawDot $w $series [expr {log10($xcrd)}] [expr {log10($ycrd)}] $value
}
proc ::Plotchart::DrawPolarDot { w series rad phi value } {
variable torad
set xcrd [expr {$rad*cos($phi*$torad)}]
set ycrd [expr {$rad*sin($phi*$torad)}]
DrawDot $w $series $xcrd $ycrd $value
}
# DrawRchart --
# Draw data together with two horizontal lines representing the
# expected range
# Arguments:
# w Name of the canvas
# series Data series
# xcrd X coordinate of the data point
# ycrd Y coordinate of the data point
# Result:
# None
# Side effects:
# New data point drawn, lines updated
#
proc ::Plotchart::DrawRchart { w series xcrd ycrd } {
variable data_series
variable scaling
#
# Check for missing values
#
if { $xcrd == "" || $ycrd == "" } {
return
}
#
# In any case, draw the data point
#
DrawData $w $series $xcrd $ycrd
#
# Compute the expected range
#
if { ! [info exists data_series($w,$series,rchart)] } {
set data_series($w,$series,rchart) $ycrd
} else {
lappend data_series($w,$series,rchart) $ycrd
if { [llength $data_series($w,$series,rchart)] < 2 } {
return
}
set filtered $data_series($w,$series,rchart)
set outside 1
while { $outside } {
set data $filtered
foreach {ymin ymax} [RchartValues $data] {break}
set filtered {}
set outside 0
foreach y $data {
if { $y < $ymin || $y > $ymax } {
set outside 1
} else {
lappend filtered $y
}
}
}
#
# Draw the limit lines
#
if { [info exists data_series($w,$series,rchartlimits)] } {
eval $w delete $data_series($w,$series,rchartlimits)
}
set colour "black"
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
set xmin $scaling($w,xmin)
set xmax $scaling($w,xmax)
foreach {pxmin pymin} [coordsToPixel $w $xmin $ymin] {break}
foreach {pxmax pymax} [coordsToPixel $w $xmax $ymax] {break}
set data_series($w,$series,rchartlimits) [list \
[$w create line $pxmin $pymin $pxmax $pymin -fill $colour -tag [list data $w data_$series]] \
[$w create line $pxmin $pymax $pxmax $pymax -fill $colour -tag [list data $w data_$series]] \
]
}
}
# RchartValues --
# Compute the expected range for a series of data
# Arguments:
# data Data to be examined
# Result:
# Expected minimum and maximum
#
proc ::Plotchart::RchartValues { data } {
set sum 0.0
set sum2 0.0
set ndata [llength $data]
if { $ndata <= 1 } {
return [list $data $data]
}
foreach v $data {
set sum [expr {$sum + $v}]
set sum2 [expr {$sum2 + $v*$v}]
}
if { $ndata < 2 } {
return [list $v $v]
}
set variance [expr {($sum2 - $sum*$sum/double($ndata))/($ndata-1.0)}]
if { $variance < 0.0 } {
set variance 0.0
}
set vmean [expr {$sum/$ndata}]
set stdev [expr {sqrt($variance)}]
set vmin [expr {$vmean - 3.0 * $stdev}]
set vmax [expr {$vmean + 3.0 * $stdev}]
return [list $vmin $vmax]
}
# ReorderChartItems --
# Rearrange the drawing order of time and Gantt chart items
# Arguments:
# w Canvas widget containing them
# Result:
# None
#
proc ::Plotchart::ReorderChartItems { w } {
$w lower above
$w lower vertmask
$w lower tline
$w lower below
$w lower lowest
}
# RescaleChart --
# Reset the scaling of the scrollbar(s) for time and Gantt charts
# Arguments:
# w Canvas widget containing them
# Result:
# None
# Note:
# To be called after scaling($w,current) has been updated
# or a new time line has been added
#
proc ::Plotchart::RescaleChart { w } {
variable scaling
if { [info exists scaling($w,vscroll)] } {
if { $scaling($w,current) >= 0.0 } {
set scaling($w,theight) $scaling($w,ymax)
$scaling($w,vscroll) set 0.0 1.0
} else {
set scaling($w,theight) [expr {$scaling($w,ymax)-$scaling($w,current)}]
$scaling($w,vscroll) set $scaling($w,curpos) \
[expr {$scaling($w,curpos) + $scaling($w,ymax)/$scaling($w,theight)}]
}
}
if { [info exists scaling($w,hscroll)] } {
foreach {xmin dummy xmax} [$w bbox $w horizscroll] {break}
set scaling($w,twidth) [expr {$xmax-$xmin}]
if { $scaling($w,twidth) < $scaling($w,pxmax)-$scaling($w,pxmin) } {
$scaling($w,hscroll) set 0.0 1.0
} else {
$scaling($w,hscroll) set $scaling($w,curhpos) \
[expr {$scaling($w,curhpos) + \
($scaling($w,pxmax)-$scaling($w,pxmin)) \
/double($scaling($w,twidth))}]
}
}
}
# ConnectVertScrollbar --
# Connect a vertical scroll bar to the chart
# Arguments:
# w Canvas widget containing them
# scrollbar Scroll bar in question
# Result:
# None
#
proc ::Plotchart::ConnectVertScrollbar { w scrollbar } {
variable scaling
$scrollbar configure -command [list ::Plotchart::VertScrollChart $w]
bind $w <4> [list ::Plotchart::VertScrollChart $w scroll -1 units]
bind $w <5> [list ::Plotchart::VertScrollChart $w scroll 1 units]
bind $w <MouseWheel> [list ::Plotchart::VertScrollChart $w scroll %D wheel]
set scaling($w,vscroll) $scrollbar
RescaleChart $w
}
# ConnectHorizScrollbar --
# Connect a horizontal scroll bar to the chart
# Arguments:
# w Canvas widget containing them
# scrollbar Scroll bar in question
# Result:
# None
#
proc ::Plotchart::ConnectHorizScrollbar { w scrollbar } {
variable scaling
$scrollbar configure -command [list ::Plotchart::HorizScrollChart $w]
set scaling($w,hscroll) $scrollbar
RescaleChart $w
}
# VertScrollChart --
# Scroll a chart using the vertical scroll bar
# Arguments:
# w Canvas widget containing them
# operation Operation to respond to
# number Number representing the size of the displacement
# unit Unit of displacement
# Result:
# None
#
proc ::Plotchart::!VertScrollChart { w operation number {unit {}}} {
variable scaling
set pixheight [expr {$scaling($w,pymax)-$scaling($w,pymin)}]
set height [expr {$pixheight*$scaling($w,theight)/$scaling($w,ymax)}]
switch -- $operation {
"moveto" {
set dy [expr {$height*($scaling($w,curpos)-$number)}]
set scaling($w,curpos) $number
}
"scroll" {
if { $unit == "units" } {
set dy [expr {-$number*$height/$scaling($w,theight)}]
set newpos [expr {$scaling($w,curpos) + $number/$scaling($w,theight)}]
} else {
set dy [expr {-$number*$pixheight}]
set newpos [expr {$scaling($w,curpos) + $number*$scaling($w,ymax)/$scaling($w,theight)}]
}
# TODO: guard against scrolling too far
#if { $newpos < 0.0 } {
# set newpos 0.0
# set dy [expr {$...}]
#}
#
#if { $newpos > 1.0 } {
# set newpos 1.0
# set dy [expr {$...}]
#}
set scaling($w,curpos) $newpos
}
}
#
# TODO: limit the position between 0 and 1
#
$w move vertscroll 0 $dy
RescaleChart $w
}
proc ::Plotchart::VertScrollChart { w operation number {unit {}}} {
variable scaling
# Get the height of the scrolling region and the current position of the slider
set height [expr {$scaling($w,pymax)-$scaling($w,pymin)}]
foreach {ts bs} [$scaling($w,vscroll) get] {break}
if { $unit == "wheel" } {
set operation "scroll"
set unit "units"
set number [expr {$number>0? 1 : -1}]
}
switch -- $operation {
"moveto" {
# No scrolling if we are already at the top or bottom
if { $number < 0.0 } {
set number 0.0
}
if { $number+($bs-$ts) > 1.0 } {
set number [expr {1.0-($bs-$ts)}]
}
set dy [expr {$height*($scaling($w,curpos)-$number)/($bs-$ts)}]
set scaling($w,curpos) $number
$w move vertscroll 0 $dy
}
"scroll" {
# Handle "units" and "pages" the same
# No scrolling if we are at the top or bottom
if {$number == -1 && $ts == 0.0} {
return
}
if {$number == 1 && $bs == 1.0} {
return
}
# Scroll 1 unit in coordinate space, converted to pixel space
foreach {x1 y1} [coordsToPixel $w 0 0.0] {break}
foreach {x2 y2} [coordsToPixel $w 0 1.0] {break}
# This is the amount to scroll based on the current height
set amt [expr {$number*($y2-$y1)/$height}]
# Handle boundary conditions, don't want to scroll too far off
# the top or bottom.
if {$number == 1 && $bs-$amt > 1.0} {
set amt [expr {$bs-1.0}]
} elseif {$number == -1 && $ts-$amt < 0.0} {
set amt $ts
}
# Set the scrolling parameters and scroll
set dy [expr {$height*($scaling($w,curpos)-($ts-$amt))/($bs-$ts)}]
set scaling($w,curpos) [expr {$ts-$amt}]
$w move vertscroll 0 $dy
}
}
RescaleChart $w
}
# HorizScrollChart --
# Scroll a chart using the horizontal scroll bar
# Arguments:
# w Canvas widget containing them
# operation Operation to respond to
# number Number representing the size of the displacement
# unit Unit of displacement
# Result:
# None
#
proc ::Plotchart::HorizScrollChart { w operation number {unit {}}} {
variable scaling
# Get the width of the scrolling region and the current position of the slider
set width [expr {double($scaling($w,pxmax)-$scaling($w,pxmin))}]
foreach {ts bs} [$scaling($w,hscroll) get] {break}
switch -- $operation {
"moveto" {
# No scrolling if we are already at the top or bottom
if { $number < 0.0 } {
set number 0.0
}
if { $number+($bs-$ts) > 1.0 } {
set number [expr {1.0-($bs-$ts)}]
}
set dx [expr {$width*($scaling($w,curhpos)-$number)/($bs-$ts)}]
set scaling($w,curhpos) $number
$w move horizscroll $dx 0
}
"scroll" {
# Handle "units" and "pages" the same
# No scrolling if we are at the top or bottom
if {$number == -1 && $ts == 0.0} {
return
}
if {$number == 1 && $bs == 1.0} {
return
}
# Scroll 1 unit in coordinate space, converted to pixel space
set dx [expr {0.1*($scaling($w,xmax)-$scaling($w,xmin))}]
foreach {x1 y1} [coordsToPixel $w 0 0.0] {break}
foreach {x2 y2} [coordsToPixel $w $dx 0.0] {break}
# This is the amount to scroll based on the current width
set amt [expr {$number*($x2-$x1)/$width}]
# Handle boundary conditions, don't want to scroll too far off
# the left or the right
if {$number == 1 && $bs-$amt > 1.0} {
set amt [expr {$bs-1.0}]
} elseif {$number == -1 && $ts-$amt < 0.0} {
set amt $ts
}
# Set the scrolling parameters and scroll
set dx [expr {$width*($scaling($w,curhpos)-($ts-$amt))/($bs-$ts)}]
set scaling($w,curhpos) [expr {$ts-$amt}]
$w move horizscroll $dx 0
}
}
RescaleChart $w
}
# DrawWindRoseData --
# Draw the data for each sector
# Arguments:
# w Name of the canvas
# data List of "sectors" data
# colour Colour to use
# Result:
# None
# Side effects:
# Data added to the wind rose
#
proc ::Plotchart::DrawWindRoseData { w data colour } {
variable data_series
set start_angle $data_series($w,start_angle)
set increment $data_series($w,increment_angle)
set width_sector $data_series($w,d_angle)
set new_cumulative {}
foreach value $data cumulative_radius $data_series($w,cumulative_radius) {
set radius [expr {$value + $cumulative_radius}]
foreach {xright ytop} [polarToPixel $w [expr {$radius*sqrt(2.0)}] 45.0] {break}
foreach {xleft ybottom} [polarToPixel $w [expr {$radius*sqrt(2.0)}] 225.0] {break}
$w create arc $xleft $ytop $xright $ybottom -style pie -fill $colour \
-tag [list $w data_$data_series($w,count_data)] -start $start_angle -extent $width_sector
lappend new_cumulative $radius
set start_angle [expr {$start_angle - $increment}]
}
$w lower [list data_$data_series($w,count_data) && $w]
set data_series($w,cumulative_radius) $new_cumulative
incr data_series($w,count_data)
}
# DrawYband --
# Draw a vertical grey band in a plot
# Arguments:
# w Name of the canvas
# xmin Lower bound of the band
# xmax Upper bound of the band
# Result:
# None
# Side effects:
# Horizontal band drawn in canvas
#
proc ::Plotchart::DrawYband { w xmin xmax } {
variable scaling
foreach {xp1 yp1} [coordsToPixel $w $xmin $scaling($w,ymin)] {break}
foreach {xp2 yp2} [coordsToPixel $w $xmax $scaling($w,ymax)] {break}
$w create rectangle $xp1 $yp1 $xp2 $yp2 -fill grey70 -outline grey70 -tag [list band $w]
$w lower [list band && $w] ;# TODO: also in "plot" method
}
# DrawXband --
# Draw a horizontal grey band in a plot
# Arguments:
# w Name of the canvas
# ymin Lower bound of the band
# ymax Upper bound of the band
# Result:
# None
# Side effects:
# Horizontal band drawn in canvas
#
proc ::Plotchart::DrawXband { w ymin ymax } {
variable scaling
foreach {xp1 yp1} [coordsToPixel $w $scaling($w,xmin) $ymin] {break}
foreach {xp2 yp2} [coordsToPixel $w $scaling($w,xmax) $ymax] {break}
$w create rectangle $xp1 $yp1 $xp2 $yp2 -fill grey70 -outline grey70 -tag [list band $w]
$w lower [list band $w] ;# TODO: also in "plot" method
}
# DrawLabelDot --
# Draw a label and a symbol (dot) in a plot
# Arguments:
# w Name of the canvas
# x X coordinate of the dot
# y Y coordinate of the dot
# text Text to be shown
# orient (Optional) orientation of the text wrt the dot
# (w, e, n, s)
#
# Result:
# None
# Side effects:
# Label and dot drawn in canvas
# Note:
# The routine uses the data series name "labeldot" to derive
# the properties
#
proc ::Plotchart::DrawLabelDot { w x y text {orient w} } {
variable scaling
foreach {xp yp} [coordsToPixel $w $x $y] {break}
switch -- [string tolower $orient] {
"w" {
set xp [expr {$xp - 5}]
set anchor e
}
"e" {
set xp [expr {$xp + 10}]
set anchor w
}
"s" {
set yp [expr {$yp + 5}]
set anchor n
}
"n" {
set yp [expr {$yp - 5}]
set anchor s
}
default {
set xp [expr {$xp - 5}]
set anchor w
}
}
$w create text $xp $yp -text $text -fill grey -tag [list data $w] -anchor $anchor
DrawData $w labeldot $x $y
}
# DrawLabelDotPolar --
# Draw a label and a symbol (dot) in a polar plot
# Arguments:
# w Name of the canvas
# rad Radial coordinate of the dot
# angle Tangential coordinate of the dot
# text Text to be shown
# orient (Optional) orientation of the text wrt the dot
# (w, e, n, s)
#
# Result:
# None
# Side effects:
# Label and dot drawn in canvas
# Note:
# The routine uses the data series name "labeldot" to derive
# the properties
#
proc ::Plotchart::DrawLabelDotPolar { w rad angle text {orient w} } {
variable torad
set xcrd [expr {$rad*cos($angle*$torad)}]
set ycrd [expr {$rad*sin($angle*$torad)}]
DrawLabelDot $w $xcrd $ycrd $text $orient
}
# ConfigBar --
# Configuration options for vertical and horizontal barcharts
# Arguments:
# w Name of the canvas
# args List of arguments
# Result:
# None
# Side effects:
# Items that are already visible will NOT be changed to the new look
#
proc ::Plotchart::ConfigBar { w args } {
variable settings
foreach {option value} $args {
set option [string range $option 1 end]
if { [lsearch {showvalues valuefont valuecolour valuecolor valueformat} \
$option] >= 0} {
if { $option == "valuecolor" } {
set option "valuecolour"
}
set settings($w,$option) $value
} else {
return -code error "Unknown barchart option: -$option"
}
}
}
# DrawFunction --
# Draw a function f(x) in an XY-plot
# Arguments:
# w Name of the canvas
# series Data series (for the colour)
# xargs List of arguments to the (anonymous) function
# function Function expression
# args All parameters in the expression
# (and possibly the option -samples x)
# Result:
# None
# Side effects:
# New data drawn in canvas
#
# Note:
# This method requires Tcl 8.5
#
# TODO:
# Check for numerical problems!
#
proc ::Plotchart::DrawFunction { w series xargs function args } {
variable data_series
variable scaling
#
# Check the number of arguments
#
if { [llength $xargs] != [llength $args] + 1 &&
[llength $xargs] + 2 != [llength $args] + 1 } {
return -code error "plotfunc: number of (extra) arguments does not match the list of variables"
}
#
# Determine the number of samples
#
set number 50
if { [llength $xargs] + 2 == [llength $args] + 1 } {
if { [lindex $args end-1] != "-samples" } {
return -code error "plotfunc: unknown option - [lindex $args end-1]"
}
if { ! [string is integer [lindex $args end]] } {
return -code error "plotfunc: number of samples must be an integer - is instead \"[lindex $args end]\""
}
set number [lindex $args end]
set args [lrange $args 0 end-2]
}
#
# Get the caller's namespace
#
set namespace [uplevel 2 {namespace current}]
#
# The actual drawing
#
set colour black
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
set width 1
if { [info exists data_series($w,$series,-width)] } {
set width $data_series($w,$series,-width)
}
set xmin $scaling($w,xmin)
set dx [expr {($scaling($w,xmax) - $xmin) / ($number - 1.0)}]
set coords {}
set lambda [string map [list XARGS $xargs FUNCTION $function NS $namespace] {{XARGS} {expr {FUNCTION}} NS}]
for { set i 0 } { $i < $number } { incr i } {
set x [expr {$xmin + $dx*$i}]
if { [catch {
set y [apply $lambda $x {*}$args]
foreach {pxcrd pycrd} [coordsToPixel $w $x $y] {break}
lappend coords $pxcrd $pycrd
} msg] } {
if { [llength $coords] > 2 } {
$w create line $coords -fill $colour -smooth 1 -width $width -tag [list data $w data_$series]
set coords {}
}
}
}
if { [llength $coords] > 2 } {
$w create line $coords -fill $colour -smooth 1 -width $width -tag [list data $w data_$series]
}
$w lower [list data && $w]
}
# ClearPlot --
# Clear the current canvas and associated data
# in order to be able to draw another plot
# and re-using the same canvas
#
# Arguments:
# w Name of the canvas
#
# Results:
# None
#
# Side effects:
# all objects on the canvas will be deleted
# and all associated data removed
#
proc ::Plotchart::ClearPlot {w} {
variable data_series
variable scaling
foreach s [array names data_series "$w,*"] {
unset data_series($s)
}
foreach s [array names scaling "$w,*"] {
unset scaling($s)
}
#$w delete $w
}
# NewPlotInCanvas --
# Determine the name for the new plot
#
# Arguments:
# c Name of the canvas
#
# Results:
# Unique name for the plot
#
proc ::Plotchart::NewPlotInCanvas {c} {
variable scaling
if { ! [info exists scaling($c,plots)] } {
set scaling($c,plots) 0
} else {
incr scaling($c,plots)
}
return [format "%02d%s" $scaling($c,plots) $c]
}
# DrawDataList --
# Draw the data contained in two lists in an XY-plot
# Arguments:
# w Name of the canvas
# series Data series
# xlist List of x coordinates
# ylist List of y coordinates
# every Draw a symbol every N data
# Result:
# None
# Side effects:
# New data drawn in canvas
#
proc ::Plotchart::DrawDataList { w series xlist ylist {every {}} } {
variable data_series
variable scaling
if { $every == {} } {
set every [expr {int(sqrt([llength $xlist]))}]
if { [llength $xlist] < 10 } {
set every 1
}
}
#
# Determine the properties
#
set colour "black"
if { [info exists data_series($w,$series,-colour)] } {
set colour $data_series($w,$series,-colour)
}
set type "line"
if { [info exists data_series($w,$series,-type)] } {
set type $data_series($w,$series,-type)
}
set filled "no"
if { [info exists data_series($w,$series,-filled)] } {
set filled $data_series($w,$series,-filled)
}
set fillcolour white
if { [info exists data_series($w,$series,-fillcolour)] } {
set fillcolour $data_series($w,$series,-fillcolour)
}
set width 1
if { [info exists data_series($w,$series,-width)] } {
set width $data_series($w,$series,-width)
}
#
# Draw all data
# For the moment: no continuation!
#
if { [info exists data_series($w,$series,x)] } {
set xold $data_series($w,$series,x)
set yold $data_series($w,$series,y)
set pcoords [coordsToPixel $w $xold $yold]
} else {
set xold {}
set yold {}
set pcoords {}
}
foreach xcrd $xlist ycrd $ylist {
#
# Check for missing values
#
if { $xcrd == "" || $ycrd == "" } {
if { $pcoords != {} } {
if { $type == "line" || $type == "both" } {
$w create line $pcoords \
-fill $colour -width $width -tag [list data $w data_$series]
}
}
set pcoords {}
continue
} else {
foreach {pxcrd pycrd} [coordsToPixel $w $xcrd $ycrd] {break}
lappend pcoords $pxcrd $pycrd
}
}
set data_series($w,$series,x) $xcrd
set data_series($w,$series,y) $ycrd
if { $pcoords != {} } {
if { $type == "line" || $type == "both" } {
$w create line $pcoords \
-fill $colour -width $width -tag [list data $w data_$series]
}
}
if { $type == "symbol" || $type == "both" } {
set symbol "dot"
if { [info exists data_series($w,$series,-symbol)] } {
set symbol $data_series($w,$series,-symbol)
}
for {set i 0} {$i < [llength $xlist]} {incr i $every} {
set xcrd [lindex $xlist $i]
set ycrd [lindex $ylist $i]
if { $xcrd != {} && $ycrd != {} } {
foreach {pxcrd pycrd} [coordsToPixel $w $xcrd $ycrd] {break}
DrawSymbolPixel $w $series $pxcrd $pycrd $symbol $colour [list data $w data_$series]
}
}
}
$w lower [list data && $w]
}
# RenderText --
# Draw the specified text into a plot using special rendering tags
# Arguments:
# w Name of the canvas
# x canvas x coordinate
# y canvas y coordinate
# args the text to render and additional text formatting information as option value pairs
# Result:
# None
# Side effects:
# Text String drawn in canvas
#
proc ::Plotchart::RenderText { w x y args } {
variable render
set render(poshoriz) $x
set render(posvert) $y
set render(items) [list]
set render(superFont) {}
set render(subFont) {}
array set options {-font {} -text {} -fill {} -anchor c -tags {}}
# specified options:
array set options $args
# options to actually use:
array set newOptions $args
array unset newOptions -text
# use this -anchor for now, correct later:
set newOptions(-anchor) sw
# do the rendering:
foreach {text tag} $options(-text) {
lassign [RenderSpecs $tag $options(-font)] xp1 yp1 xp2 yp2 advance newFont
set newOptions(-font) $newFont
RenderTextDo $w $text $xp1 $yp1 $xp2 $yp2 $advance [array get newOptions]
}
# fix the -anchor for the whole string:
set bbox [$w bbox {*}$render(items)]
lassign $bbox bx1 by1 bx2 by2
lassign {0 0} dx dy
# dy:
switch $options(-anchor) {
n - nw - ne {
set dy [expr {$by2 - $by1}]
}
w - e - c {
set dy [expr {($by2 - $by1)/2.0}]
}
}
# dx:
switch $options(-anchor) {
c - n - s {
set dx [expr {($bx1-$bx2)/2.0}]
}
ne - e - se {
set dx [expr {$bx1-$bx2}]
}
}
foreach item $render(items) {$w move $item $dx $dy}
}
# renderSpecs --
# Read a render tag and determine the position of the
# associated text string
#
# Arguments:
# tag tag to get specifications for
# font font requested by the user
#
# Result:
# List of specs with relative positions, advancing information, and the font to use
#
proc ::Plotchart::RenderSpecs {tag font} {
variable render
set advance 1
set xp1 0 ;# how much to add to x coord before drawing
set yp1 0 ;# how much to add to y coord before drawing
set xp2 0 ;# how much to add to x coord afer drawing
set yp2 0 ;# how much to add to y coord after drawing
switch -- $tag {
"_" { # Subscript
if {$render(subFont) eq ""} {
set render(subFont) [font create {*}[font configure $font]]
set fontsize [font configure $font -size]
set fontsize [expr {round($fontsize * 3.0/5.0)}]
font configure $render(subFont) -size $fontsize
} else {
set fontsize [$render(subFont) configure -size]
}
set tmpFont $render(subFont)
set yp1 [expr {round($fontsize/3.0)}]
set yp2 [expr {-1 * $yp1}]
set xp1 [expr {round($fontsize/-5.0)}]
set xp2 [expr {round($fontsize/-5.0)}]
set advance 1
}
"^" { # Superscript
if {$render(subFont) eq ""} {
set render(superFont) [font create {*}[font configure $font]]
set fontsize [font configure $font -size]
set fontsize [expr {round($fontsize * 3.0/5.0)}]
font configure $render(superFont) -size $fontsize
} else {
set fontsize [$render(superFont) configure -size]
}
set tmpFont $render(superFont)
set yp1 [expr {round($fontsize/-1.5)}]
set yp2 [expr {-1 * $yp1}]
set xp1 [expr {round($fontsize/-5.0)}]
set xp2 [expr {round($fontsize/-5.0)}]
set advance 1
}
default {
set tmpFont $font
}
}
return [list $xp1 $yp1 $xp2 $yp2 $advance $tmpFont]
}
# doRender --
# Render the given string according to the additional
# rendering information
#
# Arguments:
# canvas Canvas in which to draw
# string text to be rendered
# xp1 X-offset relative to current position before drawing
# yp1 Y-offset relative to current position before drawing
# xp2 X-offset after drawing
# yp2 Y-offset after drawing
# advance whether we should advance to the next x position
# fontOptions list of pairs with formatting info for the font to use
#
# Result:
# None
#
# Side effect:
# The token is drawn on the canvas
#
proc ::Plotchart::RenderTextDo {canvas string xp1 yp1 xp2 yp2 advance fontOptions} {
variable render
# new coords where to start drawing text:
set xpos [expr {$render(poshoriz)+$xp1}]
set ypos [expr {$render(posvert)+$yp1}]
set item [$canvas create text $xpos $ypos -text $string {*}$fontOptions]
lappend render(items) $item
set bbox [$canvas bbox $item]
set width [expr {[lindex $bbox 2]-[lindex $bbox 0]}]
set xpos [expr {$xpos+$width+$xp2}]
set ypos [expr {$ypos+$yp2}]
if {$advance} {
set render(poshoriz) $xpos
set render(posvert) $ypos
}
}
# DeleteData --
# Delete the data elements and the associated resources
#
# Arguments:
# w Name of the canvas (actually the plot)
#
# Result:
# None
# Side effects:
# The data elements in the canvas are removed and the
# last known data points are removed from the resources.
# However, the rest (legend, options for data series) is not.
# This is deliberate: you may simply want to refresh the
# data.
#
proc ::Plotchart::DeleteData {w} {
variable data_series
variable scaling
foreach elem [array names data_series $w,*,x] {
unset -nocomplain data_series($elem)
}
$w delete data
}
|