topic Re: Cannot convert raster to ASCII in Data Management Questions

Cannot convert raster to ASCII

SudeshnaGhosh — Sun, 28 Oct 2012 14:31:08 GMT

Hi,

Can someone help with errors while converting from raster to ASCII. I am simply trying to convert some raster images to ascii (.asc format) so that I can import it to Idrisi. However, while working with the "Raster to ASCII" in the conversion tool in ArcGIS, it is giving me error. I dont know why. At one moment it worked on two rasterfiles with short name, but minutes later it wouldn't work on other raster images. Is there any bug? or should I shorten the raster image name? I have to clue how to solve this.

Please let me know if someone can figure out what the problem is.

Thanks,
Sudeshna

Re: Cannot convert raster to ASCII

JeffreySwain — Mon, 29 Oct 2012 10:31:17 GMT

What error message are you receiving? What kinds of names are you using? Where is the data being output to? What version of ArcMap are you using?

Re: Cannot convert raster to ASCII

DavidHockman-Wert — Fri, 26 Apr 2013 20:02:34 GMT

I just had the same problem. I was running a Python script that I wrote months ago, and has run fine for a year, when we discovered that the script is now crashing on the arcpy.RasterToASCII_conversion tool.

The ArcGIS Help clearly shows an example where the "in_raster" can be only the raster name, not the path. http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//001200000005000000

But the tool was crashing with only the raster name. When I tested the same line of code with the full path as the "in_raster", it worked!

So either ArcPy is not adding the workspace to the raster filename, or ESRI changed the way the parameter needs to be input in Raster to ASCII (conversion). Could this be a service pack issue? This other thread mentions having trouble with a script only after installing sp5: http://forums.arcgis.com/threads/69956-ArcGIS-Desktop-Crashes-using-arcpy.FeatureClassToFeatureClass_conversion-SVP-5

Very annoyed with this strange glitch.

Dave