Hi Listers,

I didn't get much response in regards to my grid question which was as follows:

Please excuse my ignorance when I say that I am having trouble trying to
figure out how to set a grid cells value in avenue. I can see that there
are commands to get a cells value, but what if you want to change it? I am
looking for something that works in much the same way as setvalue on an
ftab or vtab.

Bill Huber got back to me, with the following method which seems to work
(thanks Bill):

There are two DLLs on ArcScripts to do the job. (ArcScripts appears to be
down right now, so I can't get you specific references.) There's another
extension on ArcScripts designed specifically to do what you want, but it's
not suitable for large amounts of editing, because it uses Spatial Analyst
requests, which are slow and cumbersome. Basically, the procedure is to
create a grid having values only at the cells you want to modify and then
to paste that grid over the original using the Con request. The DLLs make
the changes directly into a RAM-buffered version of the grid dataset and
then write that buffer back to disk when you request it.

regards,

Phil


Phil Bright, BSc(GIS)
GIS Research Assistant
Regional Integrated Health Information System (RIHIS) Project
for the Combined Universities Centre for Rural Health (CUCRH)
Department of Spatial Sciences, Curtin University of Technology
http://www.cage.curtin.edu.au/gis/ruralhealth/index.htm
GPO Box U1987 Perth 6845 Western Australia
Phone: (08) 9266 7248
Fax:     (08) 9266 2703
Mobile: 0402125612
Email: brightp@vesta.curtin.edu.au
<><