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<h2><a name="plot2">8 Plotting</a></h2>
<p>As of version 3.0 (October 2014), STILTS offers plotting commands
corresponding to the new-style plots in
version 4 of the
<a href="http://www.starlink.ac.uk/topcat/">TOPCAT</a> application.
The commands are currently:
<ul>
<li><a href="plot2plane.html"><code>plot2plane</code></a>:
Draws a plane plot
</li>
<li><a href="plot2sky.html"><code>plot2sky</code></a>:
Draws a sky plot
</li>
<li><a href="plot2cube.html"><code>plot2cube</code></a>:
Draws a cube plot
</li>
<li><a href="plot2sphere.html"><code>plot2sphere</code></a>:
Draws a sphere plot
</li>
<li><a href="plot2time.html"><code>plot2time</code></a>:
Draws a time plot
</li>
</ul>
(In previous versions the less capable commands
<code>plot2d</code>,
<code>plot3d</code> and
<code>plothist</code>
were available -
these are now deprecated, but described in <a href="plot.html">Section 9</a>).
</p>
<p>These commands all have a similar structure.
The <em>plot surface</em>, or geometry of the plot,
is defined by which command you use
(for instance, if you want to plot longitude/latitude data on
the celestial sphere, use <code>plot2sky</code>).
Content is added to the plot by specifying zero or more
<em>plot layers</em>,
as described in <a href="LayerType.html">Section 8.3</a> below.
<a href="ShapeMode.html">Section 8.4</a> describes the shading modes which affect
how colouring is performed for some of the layer types.
Once a plot has been specified, it can be displayed on
the screen or exported in some way according to
a selected output mode (<a href="paintMode.html">Section 8.5</a>)
and perhaps export format (<a href="graphicExporter.html">Section 8.6</a>).
Plots displayed to the screen are by default "live" - they can be
resized and navigated around (pan, zoom, rotate, ...) using the mouse
in the same way as in a TOPCAT window.
</p>
<p>These commands allow you to make all the plots that can be produced
with TOPCAT, in some cases with more flexibility in configuration.
Unlike TOPCAT, the size of table you can plot is not limited by
the size of table you can load into the application.
In most cases, STILTS will generate plots from arbitrarily large
data sets with fixed (and modest) memory requirements.
Performance is of course highly dependent on the details of the plot,
but for instance an all-sky density plot for 2 billion points can
be produced in the order of 30 minutes.
</p>
<ul>
<li><a href="TypedPlot2Task.html">8.1 Plot Parameters</a></li>
<ul>
<li><a href="plot2-global-params.html">8.1.1 Global Parameters</a></li>
<li><a href="plot2-layer-params.html">8.1.2 Layer Parameters</a></li>
<li><a href="animate.html">8.1.3 Animation</a></li>
</ul>
<li><a href="PlotType.html">8.2 Surface Types</a></li>
<li><a href="LayerType.html">8.3 Layer Types</a></li>
<ul>
<li><a href="layer-mark.html">8.3.1 <code>mark</code></a></li>
<li><a href="layer-size.html">8.3.2 <code>size</code></a></li>
<li><a href="layer-sizexy.html">8.3.3 <code>sizexy</code></a></li>
<li><a href="layer-xyvector.html">8.3.4 <code>xyvector</code></a></li>
<li><a href="layer-xyerror.html">8.3.5 <code>xyerror</code></a></li>
<li><a href="layer-xyellipse.html">8.3.6 <code>xyellipse</code></a></li>
<li><a href="layer-xycorr.html">8.3.7 <code>xycorr</code></a></li>
<li><a href="layer-link2.html">8.3.8 <code>link2</code></a></li>
<li><a href="layer-mark2.html">8.3.9 <code>mark2</code></a></li>
<li><a href="layer-line.html">8.3.10 <code>line</code></a></li>
<li><a href="layer-linearfit.html">8.3.11 <code>linearfit</code></a></li>
<li><a href="layer-label.html">8.3.12 <code>label</code></a></li>
<li><a href="layer-contour.html">8.3.13 <code>contour</code></a></li>
<li><a href="layer-grid.html">8.3.14 <code>grid</code></a></li>
<li><a href="layer-fill.html">8.3.15 <code>fill</code></a></li>
<li><a href="layer-quantile.html">8.3.16 <code>quantile</code></a></li>
<li><a href="layer-histogram.html">8.3.17 <code>histogram</code></a></li>
<li><a href="layer-kde.html">8.3.18 <code>kde</code></a></li>
<li><a href="layer-knn.html">8.3.19 <code>knn</code></a></li>
<li><a href="layer-densogram.html">8.3.20 <code>densogram</code></a></li>
<li><a href="layer-gaussian.html">8.3.21 <code>gaussian</code></a></li>
<li><a href="layer-function.html">8.3.22 <code>function</code></a></li>
<li><a href="layer-skyvector.html">8.3.23 <code>skyvector</code></a></li>
<li><a href="layer-skyellipse.html">8.3.24 <code>skyellipse</code></a></li>
<li><a href="layer-skycorr.html">8.3.25 <code>skycorr</code></a></li>
<li><a href="layer-skydensity.html">8.3.26 <code>skydensity</code></a></li>
<li><a href="layer-healpix.html">8.3.27 <code>healpix</code></a></li>
<li><a href="layer-skygrid.html">8.3.28 <code>skygrid</code></a></li>
<li><a href="layer-xyzvector.html">8.3.29 <code>xyzvector</code></a></li>
<li><a href="layer-xyzerror.html">8.3.30 <code>xyzerror</code></a></li>
<li><a href="layer-yerror.html">8.3.31 <code>yerror</code></a></li>
<li><a href="layer-spectrogram.html">8.3.32 <code>spectrogram</code></a></li>
</ul>
<li><a href="ShapeMode.html">8.4 Shading Modes</a></li>
<ul>
<li><a href="shading-auto.html">8.4.1 <code>auto</code></a></li>
<li><a href="shading-flat.html">8.4.2 <code>flat</code></a></li>
<li><a href="shading-translucent.html">8.4.3 <code>translucent</code></a></li>
<li><a href="shading-transparent.html">8.4.4 <code>transparent</code></a></li>
<li><a href="shading-density.html">8.4.5 <code>density</code></a></li>
<li><a href="shading-aux.html">8.4.6 <code>aux</code></a></li>
<li><a href="shading-weighted.html">8.4.7 <code>weighted</code></a></li>
</ul>
<li><a href="paintMode.html">8.5 Output Modes</a></li>
<ul>
<li><a href="paintmode-swing.html">8.5.1 <code>swing</code></a></li>
<li><a href="paintmode-out.html">8.5.2 <code>out</code></a></li>
<li><a href="paintmode-cgi.html">8.5.3 <code>cgi</code></a></li>
<li><a href="paintmode-discard.html">8.5.4 <code>discard</code></a></li>
<li><a href="paintmode-auto.html">8.5.5 <code>auto</code></a></li>
</ul>
<li><a href="graphicExporter.html">8.6 Export Formats</a></li>
</ul>
<hr><a href="TypedPlot2Task.html">Next</a> <a href="matchGroup.html">Previous</a> <a href="index.html">Up</a> <a href="index.html">Contents</a> <br> <b>Next: </b><a href="TypedPlot2Task.html">Plot Parameters</a><br>
<b>Up: </b><a href="index.html">Top</a><br>
<b>Previous: </b><a href="matchGroup.html">Multi-Object Matches</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>
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