Editing Raster Pixels with the Con Tool

AndreKrimbacher

Hi,

I've got a digital surface model with several false values below zero. So what I'm trying to do is replace all negative values with zero.

I've tried using the followng raster calculator expression:

Con("myraster" > 0, "myraster", 0)

In theory this should keep all values which are >0 and replace all others with 0. However, all I get is an unspecified error message.

I've also tried using the Con Tool itself but the result is the same. Any ideas what I'm doing wrong?

DanPatterson_Retired

Can you open the Results window and examine the contents of the messages etc.  Look for paths with spaces or other unsavory characters, filenames that are too long contain spaces etc and any general information that you can share.  The unspecified nature of the error is usually not one of syntax but one of naming conventions and file locations.  Also it is a good practice to ensure that there is a space between grid names, operands and spaces.  The access and results window should provide a basis for what has or hasn't worked.