Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/MODEL|Examples">Examples</a><hr>
<H4>Grids</H4>
A file is georeferenced in UTM coordinates. As part of the final
processing steps, the user wishes a grid to be superimposed on the
imagery along 1000-metre intervals in both the x and y directions.
The input imagery is an RGB-enhanced image on channels 1, 2, 3. The
output will be to channels 7, 8, and 9.
<P>
<PRE>
   if (mod(@geox,1000)&lt;=@sizex) or (mod(@geoy,1000)&lt;=@sizey) then
      %7 = 255;   %8 = 255;   %9 = 255;
   else
      %7 = %1;    %8 = %2;    %9 = %3;
   endif;
</PRE>
The following model prompts the user for the spacing (in pixels) for
a regular grid as well as an input and output channel.
<P>
<PRE>
   input 'Enter the grid spacing:   ' #s;
   input 'Enter the input  channel: ' %in;
   input 'Enter the output channel: ' %out;
   if (mod(@x,#s)=0) or (mod(@y,#s)=0) then
     %out=255;
   else
     %out=%in;
   endif;
</PRE>
<hr>
Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/MODEL|Examples">Examples</a><br>
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