How to use intersect tool

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02-11-2019 08:37 AM
IrfaanYasin
New Contributor

Hi Guys,

I'm drawn a buffer of 30m around pipework.  I have also drawn a 100m grid.  Now what I want to do is find out which pipes buffer sits in each grid square, and how much area within the grid it covers.

Any ideas how to do this?

Thanks

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DanPatterson_Retired
MVP Emeritus

If you have useful projected data, or can calculate area in each layer in projected coordinates,

then the information should be in the table.

There are a couple of options that you can look at

Intersect—Help | ArcGIS Desktop  (use ratio policy)

How Pairwise Intersect works—Help | ArcGIS Desktop 

but I like

Union—Help | ArcGIS Desktop  (use ratio policy)

since I like to track what didn't intersect

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3 Replies
DanPatterson_Retired
MVP Emeritus

If you have useful projected data, or can calculate area in each layer in projected coordinates,

then the information should be in the table.

There are a couple of options that you can look at

Intersect—Help | ArcGIS Desktop  (use ratio policy)

How Pairwise Intersect works—Help | ArcGIS Desktop 

but I like

Union—Help | ArcGIS Desktop  (use ratio policy)

since I like to track what didn't intersect

ChrisDonohue__GISP
MVP Alum

Another option:

Identity—Help | ArcGIS Desktop 

Though Union and Intersect are probably easier to get started with.

Chris Donohue, GISP

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IrfaanYasin
New Contributor

Thanks guys.  Just to point out the tools were working, but the reason I kept getting failures was because I was exporting to a shape file, and it had more lines than excel could handle, so the data was getting lost.  Exported to a GeoDatabase, and it all worked fine. 

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