topic Re: Set multiple output extent in python scripting. in Geoprocessing Questions

Set multiple output extent in python scripting.

SamHuang — Fri, 21 Jun 2013 22:32:34 GMT

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!

Re: Set multiple output extent in python scripting.

LucasDanzinger — Sun, 12 Dec 2021 07:51:03 GMT

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")

Re: Set multiple output extent in python scripting.

SamHuang — Mon, 24 Jun 2013 15:38:21 GMT

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

Re: Set multiple output extent in python scripting.

LucasDanzinger — Sun, 12 Dec 2021 07:51:06 GMT

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