[Beginner question] Raster to ASCII

[Tim Chase]

On 11/14/2010 01:07 PM, Becky Kern wrote:
> import arcgisscripting
> gp = arcgisscripting.create(9.3)
> InRaster = "C:/data/raster1"
> OutAsciiFile = "C:/data/raster2ascii.asc"
> gp.RasterToASCII_conversion(InRaster, OutAsciiFile)
>
> The error message:
>
> arcgisscripting.ExecuteError: Failed to execute. Parameters are not valid.
> raster1 does not exist.

While I can't speak specifically to arcgisscripting, having no 
experience with it, the error _sounds_ like the InRaster file 
isn't found.  It's the only reference to "raster1" in your code 
and the error points directly at "raster1".  My suspicion is that 
you're missing an extension...something like

   InRaster = "C:/data/raster1.rst"

with whatever the corresponding extension is.  Alternatively, 
it's pointing at directory named "raster1" instead of a file.

-tkc