/usr/share/doc/stilts/sun256/layer-skygrid.html is in stilts-doc 3.1.2-2.
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 | <html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="sun-style.css">
<title>skygrid</title>
</head>
<body>
<hr>
<a href="layer-xyzvector.html">Next</a> <a href="layer-healpix.html">Previous</a> <a href="LayerType.html">Up</a> <a href="index.html">Contents</a> <br> <b>Next: </b><a href="layer-xyzvector.html">xyzvector</a><br>
<b>Up: </b><a href="LayerType.html">Layer Types</a><br>
<b>Previous: </b><a href="layer-healpix.html">healpix</a><br>
<hr>
<h4><a name="layer-skygrid">8.3.28 <code>skygrid</code></a></h4>
<p>Plots an additional axis grid on the celestial sphere.
This can be overlaid on the default sky axis grid
so that axes for multiple sky coordinate systems
are simultaneously visible.
</p>
<p>Note that some of the configuration items for this plotter,
such as grid line antialiasing and the decimal/sexagesimal flag,
are inherited from the values set for the main sky plot grid.
</p>
<p>
<strong>Usage Overview:</strong>
<pre>
layerN=skygrid gridsysN=equatorial|galactic|supergalactic|ecliptic
gridcolorN=<rrggbb>|red|blue|... transparencyN=0..1
labelposN=Internal|None crowdN=<number>
</pre>
</p>
<p>All the parameters listed here
affect only the relevant layer,
identified by the suffix
<code>N</code>.
</p>
<p>
<strong>Example:</strong>
</p>
<div align="center"><img src="plot2-layer-skygrid.png" alt="" align="middle"></div>
<p><pre> stilts plot2sky xpix=500 ypix=250 projection=aitoff
<strong>viewsys=ecliptic</strong>
<strong>layer1=skygrid</strong> <strong>gridsys1=galactic</strong> <strong>gridcolor1=HotPink</strong> <strong>labelpos1=none</strong></pre></p>
<p>
<dl>
<dt><strong><code>crowdN = <number></code> <em>(Double)</em></strong></dt>
<dd>Determines how closely sky grid lines are spaced.
The default value is 1, meaning normal crowding.
Larger values result in more grid lines,
and smaller values in fewer grid lines.
<p>[Default: <code>1</code>]
</p>
</dd>
<dt><strong><code>gridcolorN = <rrggbb>|red|blue|...</code> <em>(<a href="http://docs.oracle.com/javase/6/docs/api/java/awt/Color.html">Color</a>)</em></strong></dt>
<dd>The color of the plot grid,
given by name or as a hexadecimal RGB value.
<p>The standard plotting colour names are
<code>red</code>, <code>blue</code>, <code>green</code>, <code>grey</code>, <code>magenta</code>, <code>cyan</code>, <code>orange</code>, <code>pink</code>, <code>yellow</code>, <code>black</code>, <code>light_grey</code>, <code>white</code>.
However, many other common colour names (too many to list here)
are also understood.
The list currently contains those colour names understood
by most web browsers,
from <code>AliceBlue</code> to <code>YellowGreen</code>,
listed e.g. in the
<em>Extended color keywords</em> section of
the <a href="http://www.w3c.org/TR/css3-color#svg-color">CSS3</a> standard.
</p>
<p>Alternatively, a six-digit hexadecimal number <em>RRGGBB</em>
may be supplied,
optionally prefixed by "<code>#</code>" or "<code>0x</code>",
giving red, green and blue intensities,
e.g. "<code>ff00ff</code>", "<code>#ff00ff</code>"
or "<code>0xff00ff</code>" for magenta.
</p>
<p>[Default: <code>light_grey</code>]
</p>
</dd>
<dt><strong><code>gridsysN = equatorial|galactic|supergalactic|ecliptic</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plot2/geom/SkySys.html">SkySys</a>)</em></strong></dt>
<dd>The sky coordinate system used for the additional
grid axes.
<p>The available options are:
<ul>
<li><code>equatorial</code>: J2000 equatorial system
</li>
<li><code>galactic</code>: IAU 1958 galactic system
</li>
<li><code>supergalactic</code>: De Vaucouleurs supergalactic system
</li>
<li><code>ecliptic</code>: ecliptic system based on conversion at 2000.0
</li>
</ul>
</p>
<p>[Default: <code>equatorial</code>]
</p>
</dd>
<dt><strong><code>labelposN = Internal|None</code> <em>(<a href="http://andromeda.star.bris.ac.uk/starjavadocs/uk/ac/starlink/ttools/plot2/geom/SkyAxisLabeller.html">SkyAxisLabeller</a>)</em></strong></dt>
<dd>Controls how and whether the numeric annotations
of the lon/lat axes are displayed.
<p>The available options are:
<ul>
<li><code>Internal</code>: Labels are drawn inside the plot bounds
</li>
<li><code>None</code>: Axes are not labelled
</li>
</ul>
</p>
<p>[Default: <code>Internal</code>]
</p>
</dd>
<dt><strong><code>transparencyN = 0..1</code> <em>(Double)</em></strong></dt>
<dd>Transparency with which components are plotted,
in the range 0 (opaque) to 1 (invisible).
The value is 1-alpha.
<p>[Default: <code>0</code>]
</p>
</dd>
</dl>
</p>
<hr><a href="layer-xyzvector.html">Next</a> <a href="layer-healpix.html">Previous</a> <a href="LayerType.html">Up</a> <a href="index.html">Contents</a> <br> <b>Next: </b><a href="layer-xyzvector.html">xyzvector</a><br>
<b>Up: </b><a href="LayerType.html">Layer Types</a><br>
<b>Previous: </b><a href="layer-healpix.html">healpix</a><br>
<hr><i>STILTS - Starlink Tables Infrastructure Library Tool Set<br>Starlink User Note256<br>STILTS web page:
<a href="http://www.starlink.ac.uk/stilts/">http://www.starlink.ac.uk/stilts/</a><br>Author email:
<a href="mailto:m.b.taylor@bristol.ac.uk">m.b.taylor@bristol.ac.uk</a><br>Mailing list:
<a href="mailto:topcat-user@jiscmail.ac.uk">topcat-user@jiscmail.ac.uk</a><br></i></body>
</html>
|