topic Re: Iterate through features to use as input for ExtractByMask in ArcGIS Pro Questions

Iterate through features to use as input for ExtractByMask

JanHildebrand — Thu, 19 Oct 2017 11:54:30 GMT

I need to iterate through each of the features of a feature class successively to use each one as the mask to extract from a raster with the ExtractByMask tool. Basically I'm looking for the "Iterate Feature Selection" function from ModelBuilder for Python scripting.

If I understand correctly, using a search cursor will return only the row of values from the attribute table, not the feature shape itself. Would iteratively creating a new shape with "Select_Analysis" be a feasible way to go about this instead? I suppose creating a new shape file for each feature would take quite long. Is there another, more efficient way?

Re: Iterate through features to use as input for ExtractByMask

ChrisDonohue__GISP — Thu, 19 Oct 2017 16:07:26 GMT

Tagging https://community.esri.com/community/developers/gis-developers/python

Chris Donohue, GISP

Re: Iterate through features to use as input for ExtractByMask

DanPatterson_Retired — Fri, 10 Dec 2021 22:40:42 GMT

searchcursor...

fc = 'your featureclass'
fields = ['SHAPE@XY']
with arcpy.da.SearchCursor(fc, fields) as cursor:
    for row in cursor:
        shp = row[0]
        # do stuff here‍‍‍‍‍‍

....