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<document xmlns="http://cnx.rice.edu/cnxml" xmlns:md="http://cnx.rice.edu/mdml/0.4" xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:bib="http://bibtexml.sf.net/" id="None">
  <name>Intensity Graph Example VI</name>
  <metadata>
  <md:version>**new**</md:version>
  <md:created>2004/06/24 13:51:32.517 GMT-5</md:created>
  <md:revised>2004/07/14 16:36:28.444 GMT-5</md:revised>
  <md:authorlist>
      <md:author id="NationalInstruments">
      <md:firstname>National</md:firstname>
      
      <md:surname>Instruments</md:surname>
      <md:email>certification@ni.com</md:email>
    </md:author>
  </md:authorlist>

  <md:maintainerlist>
    <md:maintainer id="lizzardg">
      <md:firstname>Elizabeth</md:firstname>
      
      <md:surname>Gregory</md:surname>
      <md:email>lizzardg@rice.edu</md:email>
    </md:maintainer>
    <md:maintainer id="harika">
      <md:firstname>Harika</md:firstname>
      
      <md:surname>Basana</md:surname>
      <md:email>ilsai@rice.edu</md:email>
    </md:maintainer>
    <md:maintainer id="mshiralkar05">
      <md:firstname>Malan</md:firstname>
      
      <md:surname>Shiralkar</md:surname>
      <md:email>mshiralkar05@hotmail.com</md:email>
    </md:maintainer>
    <md:maintainer id="NationalInstruments">
      <md:firstname>National</md:firstname>
      
      <md:surname>Instruments</md:surname>
      <md:email>certification@ni.com</md:email>
    </md:maintainer>
  </md:maintainerlist>
  
  <md:keywordlist>
    <md:keyword>National Instruments</md:keyword>
    <md:keyword>LabVIEW</md:keyword>
    <md:keyword>exercise</md:keyword>
    <md:keyword>Intensity Graph Example VI</md:keyword>
  </md:keywordlist>

  <md:abstract>Use an intensity graph.</md:abstract>
</metadata>
  
  <content>
    <exercise id="e1">
      <problem>
	<para id="p1">
	  In this exercise, you use a VI that displays a wave interference
	  pattern on an intensity graph. You also use the VI to plot a 2D
	  array of data on the graph.
	</para>
	<section id="s1">
	  <name>Front Panel</name>
	  <list id="l1" type="enumerated">
	    <item>
	      Open and run the <cnxn target="f1">Intensity Graph
		Example</cnxn> VI located in the <code>C:\Exercises\LabVIEW
		Basics I</code> directory. By default, the VI plots an
	      interference waveform. A <code>Property Node</code> on the
	      block diagram defines the color range used in the intensity
	      graph. You can change the color range by opening the block
	      diagram and modifying the <code>Color Array</code> constant.
	      <figure id="f1">
		<media type="image/png" src="intensitygraphexfp.png"/>
	      </figure>
	    </item>
	    <item>
	      Change the <code>Plot</code> switch on the front panel to
	      <code>User Data</code> and enter values between
	      <m:math>
		<m:cn>0.0</m:cn>
	      </m:math> and 
	      <m:math>
		<m:cn>10.0</m:cn> </m:math> in the <code>User Data</code>
	      array control. Run the VI. Notice how the magnitude of each
	      element is mapped to the intensity graph.
	      <figure id="f2">
		<media type="image/png" src="intensitygraphexfp2.png"/>
	      </figure>
	    </item>
	    <item>
	      Close the VI. Do not save changes.
	    </item>
	  </list>
	</section>
      </problem>
    </exercise>
  </content>
  
</document>
