I haven't used that script that you're using, but it sounds like possibly you
compiled the script and attached it to a Button instead of a Tool, or maybe you
attached to the "Click" event of the tool instead of the "Apply" event.
If you can't make it work, you might try the Spatial Tools extension, available
at www.absc.usgs.gov/glba/gistools/index.htm. This will get a new menu item called
"Transformation" which has a "Clip Grid" function. To use it, you have to create a
graphic rectangle first using the "Draw Rectangle" tool. Then you'll use "Clip
Grid" to clip the grid based on that rectangle.
Hope this helps!
> Either I am missing something fundamental here, or my ArcView is bugged.
> Does anyone have tips, etc. on how to extract / clip an area from a grid theme?
> I am using the Spatial Analyst extension, and from what I read, one can draw a
> graphical polygon, confirm it's size and position, then run an ESRI-contributed
> script (grextract.ave) to clip the grid according to the clip region made by the
> graphic selection (rectangle).
> When I attempt to draw a rectangle on my grid theme, nothing happends, ie the
> rectangle is gone once I release my mouse.
> Any suggestions?