arcpy AddColormap issue

Question

In 10.3.1, when using arcpy.AddColormap_management in a script tool, the input must be passed from a Raster Dataset with a full path to the dataset, not from a Raster Layer in an ArcMap document! If passed from a Raster Layer, it results in "ERROR 000199: Failed to add Colormap".

DanPatterson_Retired · Answer

if this is a layer file, it would work in arcmap because it is just a layer... but I just saw that your layer file has

Forest.tif.lyr two periods in it.  Can you confirm the actual filename and the name of the layer in arcmap.  and for extra measure specify the actual path to the layer file to check.  In all cases, print the layer name whether it is being read from the project or disk , particularly the latter to ensure paths are correct

RandalGreene1 · Answer

That's a good idea, but it's not related to the problem. arcpy.AddColormap_management will still fail with the error above!

DanPatterson_Retired · Answer

why don't you set a workspace line  to specify the folder where the layer files reside

arcpy.env.workspace = .....