topic Re: Clipping a polygon in Data Management Questions

Clipping a polygon

macmaya4 — Mon, 06 Dec 2021 15:05:30 GMT

Hi there,

So, I essentially have a map of Greenland, which I have created and there are bodies of water underneath which i want to clip (so i want my map to be my square polygon of the land with some bodies of water 'cut out' essentially)

But i create my polygons along the bodies of water, and this error appears. I've checked other boards and i save my edits, I try and put everything in the same folder etc, nothing seems to help.

)this is university level stuff so not too complicated but i am very confused how to 'cut out' my polygons.)

any help is appreciated.

Re: Clipping a polygon

RandyMorris — Mon, 06 Dec 2021 15:39:38 GMT

Hi!

Would you post screenshots of the tool settings and what the polygon overlay looks like on your screen?

Randy

Re: Clipping a polygon

macmaya4 — Mon, 06 Dec 2021 16:08:18 GMT

Hi, yep, here you go! i want my final product to look like the yellow, but i need to remove lakes, as i really am just focusing on the land terrain if that makes sense? i will eventually be calculating NDVI.

I just want to work out how to cut the bodies of water i dont want there out. apparently to do this, i have to use a polygon, but it wont let me clip it.

Re: Clipping a polygon

DanPatterson — Mon, 06 Dec 2021 18:50:58 GMT

Extract by polygon.... there is a keep inside and keep outside option

You need the Spatial analyst extension however,

Extract by Polygon (Spatial Analyst)—ArcGIS Pro | Documentation

Extraction by attribute, shape, or location—ArcGIS Pro | Documentation