<h2>org.autoplot.cdf.CdfVirtualVars</h2><p>Implementations of the CDF virtual variables seen in CDAWeb, but implemented in QDataSet.
 These should reflect a subset of those functions, with the IDL implementations at
 http://spdf.gsfc.nasa.gov/CDAWlib.html
 see ftp://cdaweb.gsfc.nasa.gov/pub/CDAWlib/unix/CDAWlib.tar.gz, routine read_myCDF.pro</p>
<h2>CdfVirtualVars( )</h2>
<p></p>

<hr>
<a name="convPos"></a>
<h2>convPos</h2>
convPos( <a href='https://docs.oracle.com/javase/8/docs/api/java/util/List.html'>java.util.List</a> args, <a href='https://docs.oracle.com/javase/8/docs/api/java/lang/String.html'>String</a> coordSys ) &rarr; <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a>

<p></p>

<h3>Parameters</h3>
args - a java.util.List
<br>
coordSys - a String

<h3>Returns:</h3>
org.das2.qds.QDataSet

<br><br>
<a href="https://github.com/autoplot/dev/search?q=convPos&unscoped_q=convPos">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/autoplot/cdf/CdfVirtualVars.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/autoplot/cdf/CdfVirtualVars.html#convPos">[view on old javadoc]</a>
<br>
<br>
<hr>
<a name="execute"></a>
<h2>execute</h2>
execute( <a href='https://docs.oracle.com/javase/8/docs/api/java/util/Map.html'>java.util.Map</a> metadata, <a href='https://docs.oracle.com/javase/8/docs/api/java/lang/String.html'>String</a> function, <a href='https://docs.oracle.com/javase/8/docs/api/java/util/List.html'>java.util.List</a> args, <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/util/monitor/ProgressMonitor.html'>ProgressMonitor</a> mon ) &rarr; <a href='http://www-pw.physics.uiowa.edu/~jbf/autoplot/doc/org/das2/qds/QDataSet.html'>QDataSet</a>

<p>Implementations of CDF virtual functions.  These are a subset of those in the CDAWeb library, plus a couple
 extra that they will presumably add to the library at some point.</p>

<h3>Parameters</h3>
metadata - the metadata for the new result dataset, CDF semantics such as FILLVAL=-1e31
<br>
function - the function name, which is case insensitive.  See code isSupported for list of function names.
<br>
args - list of QDataSets that are the arguments to the function
<br>
mon - monitor for the function

<h3>Returns:</h3>
the computed variable.
<h3>See Also:</h3>
<a href='null'>isSupported(java.lang.String)</a> <br>
<a href='https://spdf.gsfc.nasa.gov/istp_guide/vattributes.html'>https://spdf.gsfc.nasa.gov/istp_guide/vattributes.html</a> <br>
<br><br>
<a href="https://github.com/autoplot/dev/search?q=execute&unscoped_q=execute">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/autoplot/cdf/CdfVirtualVars.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/autoplot/cdf/CdfVirtualVars.html#execute">[view on old javadoc]</a>
<br>
<br>
<hr>
<a name="isSupported"></a>
<h2>isSupported</h2>
isSupported( <a href='https://docs.oracle.com/javase/8/docs/api/java/lang/String.html'>String</a> function ) &rarr; boolean

<p>return true if the function is supported.</p>

<h3>Parameters</h3>
function - the function name, such as "compute_magnitude"

<h3>Returns:</h3>
true if the function is supported.
<br><br>
<a href="https://github.com/autoplot/dev/search?q=isSupported&unscoped_q=isSupported">[search for examples]</a>
 <a href="https://github.com/autoplot/documentation/tree/master/javadoc/org/autoplot/cdf/CdfVirtualVars.md">[view on GitHub]</a>
 <a href="http://www-pw.physics.uiowa.edu/~jbf/autoplot/javadoc2018/org/autoplot/cdf/CdfVirtualVars.html#isSupported">[view on old javadoc]</a>
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