Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

Firstly, apologies as I'm a newbie and have only been studying GIS for a few months. I am digitising field boundaries and have a field within a field, and am wondering what the best way of representing this in a single layer is, so that the area of the internal field is subtracted from the area of the main field. I have read an explanation about donut parcels but am not sure if this is the right solution for what I want to do? I am using ArcMap. Thanks in advance for your suggestions.

share|improve this question
add comment

2 Answers

There is an Esri Technical Article on this (don't be put off by it only going up to ArcGIS 9.3.1 because it still applies at 10.1).

Try the instructions there and, if you have any problems, perhaps edit your question to describe the steps you have done and where you may need further assistance.

A quick description is:

  1. Start Editing
  2. Create two polygons - inner field and outer field
  3. Select the inner field and use it to Clip - by choosing 'Discard the area that intersects' you are effectively "punching out" the area behind it which will leave the outer field as a donut polygon.
share|improve this answer
    
Thank you - I am going to give this at try. –  rhm May 10 '13 at 9:16
add comment

If I were you I would use the "cut polygon tool" to cut out that field within a field. After that, you could either delete it or keep it.

Since you are using ArcMap, I think this link is really helpful to your question.

Hope this works.

Thanks,

Jinnan

share|improve this answer
    
Thanks you for your advice, I will also try this. –  rhm May 10 '13 at 9:16
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.