ION Script source code:





<!-- Copyright (c) 1997-2002, Research Systems, Inc.  All rights reserved.


     Unauthorized reproduction prohibited. -->







<!-- This is an example of the <ION_IMAGE> tag utilizing the 


	<ION_RADIO> tag to select different filters. -->







<ION_SCRIPT>




<ION_HEADER>



  <TITLE>Image Processing Example</TITLE>



  <VARIABLES>




    <VARIABLE_DECL NAME="X"  TYPE="INT"  VALUE="0" PERSIST="FALSE" />




    <VARIABLE_DECL NAME="Y"  TYPE="INT"  VALUE="0" PERSIST="FALSE" />




  </VARIABLES>







  <EVENTS>




    <EVENT_DECL NAME="NEW_YORK" ACTION="ion:///image_proc_new.ion" />




  </EVENTS>




</ION_HEADER>







<ION_BODY>







  <ION_FORM>



  <table>



    <ION_IF EXPR="$Mouse.x NE 0.0">



      <tr>


        <td>



          <ION_IMAGE LABEL="Click image" TYPE="DIRECT" WIDTH="320" HEIGHT="256" EVENT="NEW_YORK">




            <IDL>




              image_box_large, $Mouse.x, $Mouse.y




            </IDL>




          </ION_IMAGE>



        </td>


        <td>



          <ION_IMAGE LABEL="Processed Image" TYPE="DIRECT" WIDTH="192" HEIGHT="192">




            <IDL>




              image_zoom, $Mouse.x, $Mouse.y, oper='$Form.OPERATION'




            </IDL>




          </ION_IMAGE>



        </td>


      </tr>






    <ION_ELSE/>



      <tr>


        <td>



          <ION_IMAGE LABEL="Click image" TYPE="DIRECT" WIDTH="320" HEIGHT="256" EVENT="NEW_YORK">




            <IDL>




              image_box_large, 50, 50




            </IDL>




          </ION_IMAGE>



        </td>


        <td>



          <ION_IMAGE LABEL="Processed Image" TYPE="DIRECT" WIDTH="192" HEIGHT="192">




            <IDL>




              image_zoom, 50, 50




            </IDL>




          </ION_IMAGE>



        </td>


      </tr>



    </ION_IF>






      <tr COLSPAN=2>


        <font face="sans-serif"><b>Select an operation and click on the large image:</b></font>


        <br><br>






        <ION_RADIO NAME="OPERATION" VALUE="NONE" DEFAULT/> None<br>




        <ION_RADIO NAME="OPERATION" VALUE="SOBEL"/> Sobel<br>




        <ION_RADIO NAME="OPERATION" VALUE="ROBERTS"/> Roberts<br>




        <ION_RADIO NAME="OPERATION" VALUE="HIST_EQUAL"/> Equalize Histogram<br>



        <br>


      </tr>


    </table>



  </ION_FORM>







</ION_BODY>




</ION_SCRIPT>