Set multiple output extent in python scripting.

Question

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!

Lucas Danzinger · Answer

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

SamHuang · Answer

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:
Traceback info:
" + tbinfo + "
Error Info:
" + str(sys.exc_info()[1])
UnicodeEncodeError: 'ascii' codec can't encode characters in position 40-42: ordinal not in range(128)

thanks in advance

Lucas Danzinger · Answer

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:	emp\indata",r"C:	emp\clipFeatures",r"C:	emp\outFeatures")

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