Set multiple output extent in python scripting.

[SamHuang]

Hi there,

I like to find out how you can set multiple extents within python scripts. For instance setting one extent for clipping analysis follow by setting a new output extent in another clipping analysis ?

Thanks in advance!

[LucasDanzinger]

Not sure if this answers your question, but you can reset the arcpy.env.extent however many times you want throughout the script...

import arcpy
from arcpy import env

env.extent = "-107.0 38.0 -104.0 40.0"
arcpy.Clip_analysis(r"C:\temp\indata",r"C:\temp\clipFeatures",r"C:\temp\outFeatures")

env.extent = "-108.0 39.0 -105.0 50.0"
arcpy.Clip_analysis(r"C:\temp\indata1",r"C:\temp\clipFeatures1",r"C:\temp\outFeatures1")

[SamHuang]

Hope anyone can also answer this.

What if you want to set the environment syntax based on another file's extent ? How would the syntax look ? I've tried many different ways and it has  constantly given me an error as follow.

  File "iddea.py", line 71, in iddea
    pymsg = "PYTHON ERRORS:\nTraceback info:\n" + tbinfo + "\nError Info:\n" + str(sys.exc_info()[1])
UnicodeEncodeError: 'ascii' codec can't encode characters in position 40-42: ordinal not in range(128)


thanks in advance

[LucasDanzinger]

You would need to describe the source feature class:

import arcpy
desc = arcpy.Describe("pathToFeatureClass")
descExtent = desc.extent #returns an extent object
arcpy.env.extent = descExtent #extent object can be used to set arcpy.env.extent
print arcpy.env.extent