/usr/share/doc/libplplot11/examples/d/x01d.d is in libplplot-dev 5.9.9-2ubuntu2.
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//
// Simple line plot and multiple windows demo.
//
// Copyright (C) 2009 Werner Smekal
//
// This file is part of PLplot.
//
// PLplot is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as published
// by the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// PLplot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with PLplot; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
//
import std.math;
import std.stdio;
import std.string;
import plplot;
static int locate_mode;
static int test_xor;
static int fontset = 1;
static string f_name;
// Options data structure definition.
//~ static PLOptionTable[] options[] = {
//~ {
//~ "locate", /* Turns on test of API locate function */
//~ NULL,
//~ NULL,
//~ &locate_mode,
//~ PL_OPT_BOOL,
//~ "-locate",
//~ "Turns on test of API locate function" },
//~ {
//~ "xor", /* Turns on test of xor function */
//~ NULL,
//~ NULL,
//~ &test_xor,
//~ PL_OPT_BOOL,
//~ "-xor",
//~ "Turns on test of XOR" },
//~ {
//~ "font", /* For switching between font set 1 & 2 */
//~ NULL,
//~ NULL,
//~ &fontset,
//~ PL_OPT_INT,
//~ "-font number",
//~ "Selects stroke font set (0 or 1, def:1)" },
//~ {
//~ "save", /* For saving in postscript */
//~ NULL,
//~ NULL,
//~ &f_name,
//~ PL_OPT_STRING,
//~ "-save filename",
//~ "Save plot in color postscript `file'" },
//~ {
//~ NULL, /* option */
//~ NULL, /* handler */
//~ NULL, /* client data */
//~ NULL, /* address of variable to set */
//~ 0, /* mode flag */
//~ NULL, /* short syntax */
//~ NULL } /* long syntax */
//~ };
//~ const char *notes[] = {"Make sure you get it right!", NULL};
// Function prototypes
//--------------------------------------------------------------------------
// main
//
// Generates several simple line plots. Demonstrates:
// - subwindow capability
// - setting up the window, drawing plot, and labelling
// - changing the color
// - automatic axis rescaling to exponential notation
// - placing the axes in the middle of the box
// - gridded coordinate axes
//--------------------------------------------------------------------------
int main( char[][] args )
{
// plplot initialization
// Divide page into 2x2 plots unless user overrides
plssub( 2, 2 );
// Parse and process command line arguments
//plMergeOpts(options, "x01c options", notes);
plparseopts( args, PL_PARSE_FULL );
// Get version number, just for kicks
string ver;
plgver( ver );
writefln( "PLplot library version: %s", ver ); // TODO: to stdout
// Initialize plplot
plinit();
// Select font set as per input flag
if ( fontset )
plfontld( 1 );
else
plfontld( 0 );
plot myPlot = new plot;
// Set up the data & plot
myPlot.plot1( 6, 1, 0, 0, 0 );
// Set up the data & plot
PLINT digmax = 5;
plsyax( digmax, 0 );
myPlot.plot1( 1, 0.0014, 0, 0.0185, 1 );
myPlot.plot2();
myPlot.plot3();
//
// Show how to save a plot:
// Open a new device, make it current, copy parameters,
// and replay the plot buffer
//
if ( f_name ) // command line option '-save filename'
{
PLINT cur_strm, new_strm;
writefln( "The current plot was saved in color Postscript under the name `%s'.", f_name );
plgstrm( &cur_strm ); // get current stream
plmkstrm( &new_strm ); // create a new one
plsfnam( f_name ); // file name
plsdev( "psc" ); // device type
plcpstrm( cur_strm, 0 ); // copy old stream parameters to new stream
plreplot(); // do the save by replaying the plot buffer
plend1(); // finish the device
plsstrm( cur_strm ); // return to previous stream
}
// Let's get some user input
if ( locate_mode )
{
PLGraphicsIn gin;
//for(;;) {
// if(!plGetCursor(&gin))
// break;
// if(gin.keysym==PLK_Escape)
// break;
// pltext();
// if(gin.keysym<0xFF && isprint(gin.keysym))
// writefln("subwin = %d, wx = %f, wy = %f, dx = %f, dy = %f, c = '%c'",
// gin.subwindow, gin.wX, gin.wY, gin.dX, gin.dY, gin.keysym);
// else
// writefln("subwin = %d, wx = %f, wy = %f, dx = %f, dy = %f, c = 0x%02x",
// gin.subwindow, gin.wX, gin.wY, gin.dX, gin.dY, gin.keysym);
// plgra();
// }
}
// Don't forget to call plend() to finish off!
plend();
return 0;
}
class plot {
private PLFLT[] x, y, x0, y0;
private PLFLT[6] xs, ys;
private PLINT[1] space1 = [ 1500 ], mark1 = [ 1500 ];
public void plot1( PLFLT xscale, PLFLT yscale, PLFLT xoff, PLFLT yoff, int do_test )
{
x.length = 60;
y.length = 60;
for ( int i = 0; i < 60; i++ )
{
x[i] = xoff + xscale * ( i + 1 ) / 60.0;
y[i] = yoff + yscale*pow( x[i], 2. );
}
PLFLT xmin = x[0];
PLFLT xmax = x[59];
PLFLT ymin = y[0];
PLFLT ymax = y[59];
for ( int i = 0; i < xs.length; i++ )
{
xs[i] = x[i * 10 + 3];
ys[i] = y[i * 10 + 3];
}
// Set up the viewport and window using PLENV. The range in X is
// 0.0 to 6.0, and the range in Y is 0.0 to 30.0. The axes are
// scaled separately (just = 0), and we just draw a labelled
// box (axis = 0).
plcol0( 1 );
plenv( xmin, xmax, ymin, ymax, 0, 0 );
plcol0( 2 );
pllab( "(x)", "(y)", "#frPLplot Example 1 - y=x#u2" );
// Plot the data points
plcol0( 4 );
plpoin( xs, ys, 9 );
// Draw the line through the data
plcol0( 3 );
plline( x, y );
// xor mode enable erasing a line/point/text by replotting it again
// it does not work in double buffering mode, however
if ( do_test && test_xor )
{
writefln( "The -xor command line option can only be exercised if your "
"system\nhas usleep(), which does not seem to happen." );
}
}
public void plot2()
{
// Set up the viewport and window using PLENV. The range in X is -2.0 to
// 10.0, and the range in Y is -0.4 to 2.0. The axes are scaled separately
// (just = 0), and we draw a box with axes (axis = 1).
plcol0( 1 );
plenv( -2.0, 10.0, -0.4, 1.2, 0, 1 );
plcol0( 2 );
pllab( "(x)", "sin(x)/x", "#frPLplot Example 1 - Sinc Function" );
// Fill up the arrays
x.length = 100;
y.length = 100;
for ( int i = 0; i < 100; i++ )
{
x[i] = ( i - 19.0 ) / 6.0;
y[i] = 1.0;
if ( x[i] != 0.0 )
y[i] = sin( x[i] ) / x[i];
}
// Draw the line
plcol0( 3 );
plwid( 2 );
plline( x, y );
plflush();
plwid( 1 );
}
public void plot3()
{
// For the final graph we wish to override the default tick intervals, and
// so do not use PLENV
pladv( 0 );
// Use standard viewport, and define X range from 0 to 360 degrees, Y range
// from -1.2 to 1.2.
plvsta();
plwind( 0.0, 360.0, -1.2, 1.2 );
// Draw a box with ticks spaced 60 degrees apart in X, and 0.2 in Y.
plcol0( 1 );
plbox( "bcnst", 60.0, 2, "bcnstv", 0.2, 2 );
// Superimpose a dashed line grid, with 1.5 mm marks and spaces. plstyl
// expects a pointer!!
plstyl( mark1, space1 );
plcol0( 2 );
plbox( "g", 30.0, 0, "g", 0.2, 0 );
plstyl( null, null );
plcol0( 3 );
pllab( "Angle (degrees)", "sine", "#frPLplot Example 1 - Sine function" );
x.length = 101;
y.length = 101;
for ( int i = 0; i < 101; i++ )
{
x[i] = 3.6 * i;
y[i] = sin( x[i] * PI / 180.0 );
}
plcol0( 4 );
plline( x, y );
}
}
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