topic Re: How do you use Clip_management in a python loop to clip rasters? in Python Questions

How do you use Clip_management in a python loop to clip rasters?

PamFroemke — Fri, 30 Jan 2015 21:54:54 GMT

Hello,

I'm trying to use Clip_management to clip 8 rasters to about 200 different polygon boundaries. I've got it in a python loop, but am stymied by the 'rectangle' part of the syntax for that tool. I can't hard-code that info as it changes for each polygon, I'm assuming.

Can I specify a rectangle extent that encompasses all of the polygons (generally in the state of Colorado)?

Thank you!

Re: How do you use Clip_management in a python loop to clip rasters?

JoshuaBixby — Fri, 30 Jan 2015 23:12:48 GMT

It is easier for fellow GeoNet community members to provide feedback if you post relevant, functional parts of your code.

Re: How do you use Clip_management in a python loop to clip rasters?

XanderBakker — Sat, 11 Dec 2021 12:47:02 GMT

This thread shows how you can loop through polygons and extract the raster by mask: Re: Zonal statistics - percentiles .

When you loop through the polygons, each polygon has a extent property. This can be used in the Clip Management tool like this:

ext = polygon.extent
rect = "{0} {1} {2} {3}".format(ext.XMin, ext.YMin, ext.XMax, ext.YMax)

... and yes I would be a lot better if you would post the code.