[Beginner question] Error when converting raster to ASCII
Hi again users, This is in response to my post from 11/14/2010 (see below) * Hi users, ** I'm using Python 2.5 (in concert with ArcGIS 9.3) to convert a raster to ** an ASCII file. I used the code (listed below) several weeks ago to ** successfully do the conversion, but when I tried to replicate it a few ** days ago, I got an error message. ** 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. ** My file path has not changed so I don't understand why Python can no ** longer recognize my raster file. Any ideas? ** * MRAB responded: Just to make sure, does os.path.isfile(InRaster) return True? When I tried os.path.isfile(InRaster), I received the following error message: NameError: name 'os' is not defined Does this shed any light on why my raster to ASCII conversion isn't working? Thanks again. -- http://mail.python.org/mailman/listinfo/python-list
Re: [Beginner question] Error when converting raster to ASCII
On Monday, November 15, 2010, Becky Kern kern...@gmail.com wrote: Hi again users, This is in response to my post from 11/14/2010 (see below) Hi users, I'm using Python 2.5 (in concert with ArcGIS 9.3) to convert a raster to an ASCII file. I used the code (listed below) several weeks ago to successfully do the conversion, but when I tried to replicate it a few days ago, I got an error message. 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. My file path has not changed so I don't understand why Python can no longer recognize my raster file. Any ideas? MRAB responded: Just to make sure, does os.path.isfile(InRaster) return True? When I tried os.path.isfile(InRaster), I received the following error message: NameError: name 'os' is not defined you need to import os.path Does this shed any light on why my raster to ASCII conversion isn't working? Thanks again. -- http://mail.python.org/mailman/listinfo/python-list
