casa5

<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" ?>

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<casaxml xmlns="http://casa.nrao.edu/schema/psetTypes.html"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://casa.nrao.edu/schema/casa.xsd

file:///opt/casa/code/xmlcasa/xml/casa.xsd">

​

​

<!-- This is the task interface for impv        -->

<!--                                                          -->

​

<task type="function" name="impv" category="analysis">

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    <shortdescription>Construct a position-velocity image by choosing two points in the direction plane.</shortdescription>

    <input>

        <param type="string" name="imagename" mustexist="true">

            <description>Name of the input image</description>

            <value/>

        </param>

        <param type="string" name="outfile">

            <description>Output image name. If empty, no image is written.</description>

            <value/>

        </param>

        <param type="string" name="mode">

            <description>If "coords", use start and end values. If "length", use center, length, and pa values.</description>

            <value>coords</value>

            <example>mode="coords"</example>

        </param>

        <param type="any" name="start" subparam="True">

            <any type="variant" limittypes="string stringArray intArray doubleArray"/>

            <description>The starting pixel in the direction plane (array of two values).</description>

            <value type="string"/>

            <example>[20, 5]</example>

        </param>

        <param type="any" name="end" subparam="True">

            <any type="variant" limittypes="string stringArray intArray doubleArray"/>

            <description>The ending pixel in the direction plane (array of two values).</description>

            <value type="string"/>

            <example>[200,300]</example>

        </param>

        <param type="any" name="center" subparam="true">

            <description>The center point in the direction plane (array of two values). If specified, length and pa must also be specified and neither of start nor end may be specified.</description>

            <any type="variant" limittypes="string stringArray intArray doubleArray"/>

            <value type="string"/>

        </param>

        <param type="any" name="length" subparam="true">

            <description>The length of the segment in the direction plane. If specified, center and pa must also be specified and neither of start nor end may be specified.</description>

            <any type="variant" limittypes="string int double stringArray record"/>

            <value type="string"/>

        </param>

        <param type="any" name="pa" subparam="true">

            <description>The position angle of the segment in the direction plane, measured from north through east. If specified, center and length must also be specified and neither of start nor end may be specified.</description>

            <any type="variant" limittypes="string record"/>

            <value type="string"/>

        </param>

        <param type="any" name="width">

            <any type="variant" limittypes="string int record"/>

            <description>Width of slice for averaging pixels perpendicular to the slice. Must be an odd positive integer or valid quantity. See help for details.</description>

            <value type="int">1</value>

        </param>

        <param type="string" name="unit">

            <description>Unit for the offset axis in the resulting image. Must be a unit of angular measure.</description>