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<title>GrADS Command: set gxout</title>
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<h2><b>set gxout</b></h2>
<p>
<code>set gxout <i>graphics_type</i></code>
<p>
Where <code><i>graphics_type</i></code> can be one of the following:
<ul>
<code>bar </code>
Bar chart (The <a href="library.html">library</a> contains an <a href="ftp://cola.gmu.edu/grads/scripts/box_and_whisker.gs">example script</a> demonstrating how to use gxout bar and errbar)<br>
<code>barb </code>
Wind barbs <br>
<code>contour </code>
Contour plot<br>
<code>errbar </code>
Error bars (The <a href="library.html">library</a> contains an <a href="ftp://cola.gmu.edu/grads/scripts/box_and_whisker.gs">example script</a> demonstrating how to use gxout bar and errbar)<br>
<code>geotiff </code>
(<span class="style1">2.0.a5+</span>) Generates a GeoTIFF format data file; options specified by <code><a href="gradcomdsetgeotiff.html">set geotiff</a></code><br>
<code>grfill </code>
Shaded grid boxes<br>
<code>fgrid </code>
Shaded grid boxes with values specified by
<a href="gradcomdsetfgvals.html"><code>set fgvals</code></a><br>
<code>fwrite </code>
Writes data to file instead of drawing a plot; options specified by <code><a href="gradcomdsetfwrite.html">set fwrite</a></code><br>
<code>grid </code>
Grid boxes with printed values<br>
<code>imap </code>
(<span class="style1">2.0.a8+</span>) Quickly drawn shaded grid boxes. No metafile, so no hard copy; image output only with <code><a href="gradcomdoutxwd.html">outxwd</a></code>.<br>
<code>kml </code>
(<span class="style1">2.0.a5+</span>) Generates a TIFF image file and a KML text file; options specified by <code><a href="gradcomdsetkml.html">set kml</a></code><br>
<code>line </code>
Line Graph <br>
<code>linefill </code>
Color fill between two lines <br>
<code>print </code>
Generates ascii output for anything displayed; controlled by
<a href="gradcomdsetprnopts.html"><code>set prnopts</code></a><br>
<code>scatter </code> Generates a <a href="scatterplot.html">scatter diagram</a>. Requires two grid expressions as arguments, separated by a semicolon. See Usage Note #2 below.<br>
<code>shaded </code>
Shaded contour plot, alias for original algorithm (shade1)<br>
<code>shade1 </code>
(<span class="style1">2.0.0+</span>) Shaded contour plot, original algorithm<br>
<code>shade2 </code>
(<span class="style1">2.0.0+</span>) Shaded contour plot, new algorithm, polygons merged to be larger and fewer in number (faster to render)<br>
<code>shade2b </code>
(<span class="style1">2.0.0+</span>) Shaded contour plot, new algorithm, polygons all on sub-grid scale (slower to render)<br>
<code>shp </code>
(<span class="style1">2.0.a9+</span>) Generates a shapefile; options specified by <code><a href="gradcomdsetshp.html">set shp</a></code><br>
<code>stream </code>
Wind streamlines <br>
<code>stat </code>
Prints statistical output to terminal instead of drawing a plot<br>
<code>vector </code>
Wind vector arrows<br>
</ul>
<p>
For station data, these additional graphics output types are also available:
<ul>
<code>findstn </code>
Finds nearest station<br>
<code>model </code>
Plots station model<br>
<code>stnmark </code>
Plots a mark at station location that is colorized by data value<br>
<code>tserbarb </code>
Time series of wind barbs at a point (1-D)<br>
<code>tserwx </code>
Time series of weather symbols at a point (1-D)<br>
<code>value </code>
Plots station values<br>
<code>wxsym </code>
Plots weather symbols at station, controlled by
<a href="gradcomdsetwxopt.html"><code>set wxopt</code></a><br>
</ul>
<p>
<h3>Usage Notes</h3>
<ol>
<p>
<li>For the graphics output types <code>vector, stream, </code>and <code>barb</code>,
the plotting routines need two result grids, where the first result grid is
treated as the U component, and the second result grid is treated as the V
component. These two result grids are provided with the <a href="gradcomddisplay.html">display</a>
command by entering two expressions separated by a semicolon:
<ul>
<code> display u ; v<br>
display ave(u,t=1,t=10) ; ave(v,t=1,t=10)</code>
</ul>
<p>
<li>For the graphics output types <code>vector</code> and <code>stream</code>,
you can specify a third grid expression that will be used to colorize the vectors
or streamlines:
<ul>
<code> display u ; v ; mag(u,v)<br>
display u ; v ; hcurl(u,v)</code>
</ul>
Beginning with <span class="red">GrADS version 2.0.2</span>, the graphics output type <code>scatter</code> will also take a third grid expression to colorize the points in the scatter diagrm.
<p>
<li>To draw a 1-D time series with graphics output types vector or barb, set
the dimension environment so that only time is varying, then :
<ul>
<code> display const(u,0); u ; v </code>
</ul>
<p>
<li>For the graphics output type <code>wxsym</code>, each value at a station
location is assumed to be a wx symbol code number. To see a chart of all available
wx symbols and their corresponding code numbers, run the sample script <code>wxsym.gs</code>.
<p>
<li>The graphics output type <code>findstn</code> requires three arguments to
be provided with the <a
href="gradcomddisplay.html"><code>display</code></a> command. The first argument
is a station data expression. The 2nd and 3rd arguments are the X and Y screen
coordinates of the of the desired search location. GrADS will find the station
closest to the specified X and Y position, and print its stid, lon, and lat.
This graphics output type should only be used when X and Y are the varying
dimensions and AFTER a regular display command (that results in graphics output)
is entered.
<p>
<li>For the graphics output type <code>stnmark</code>, the size and style of
the mark are controled by <a href="gradcomdsetdigsiz.html"><code>set digsiz</code></a>
and <a href="gradcomdsetcmark.html"><code>set cmark</code></a>. To turn off
rainbow colorizing and use a single color instead, use <code><a href="gradcomdsetccolor.html">set
ccolor</a> <i>color#</i></code>.
</ol>
<p>
<h3>Examples </h3>
The <a href="library.html">library</a> contains an <a href="ftp://cola.gmu.edu/grads/scripts/box_and_whisker.gs">example script</a> demonstrating how to use gxout bar and errbar
<p> </p>
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