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Multiple Ring Buffer - no 'outside only' option?

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yesterday
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clt_cabq
Frequent Contributor

I'm trying to create multiple ring buffers of a set of points and am finding that the 'Outside Only' option isn't available - the checkbox doesn't appear in the dialogue. When I try and run this as a python command using the "OUTSIDE_ONLY" parameter it fails and gives me the error of 'value is not member of Full'. My goal is to create concentric ring like buffer zones around points that are 0-0.5 miles, 0.5-1 mile, and 1.0 - 1.5 mile distances. Is this a bug or has functionality been dropped (according to the documentation it should be available).

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clt_cabq_1-1736264259946.png

 

 

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BarryNorthey
Frequent Contributor

From the Help

 

Outside_Polygons_Only

(Optional)

Specifies whether the buffers will cover the input features. This parameter is valid only for polygon input features.

  • FULL—Buffers will overlap or cover the input features. This is the default.
  • OUTSIDE_ONLY—Buffers will be rings around the input features, and will not overlap or cover the input features (the area inside the input polygon will be erased from the buffer).

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BarryNorthey
Frequent Contributor

From the Help

 

Outside_Polygons_Only

(Optional)

Specifies whether the buffers will cover the input features. This parameter is valid only for polygon input features.

  • FULL—Buffers will overlap or cover the input features. This is the default.
  • OUTSIDE_ONLY—Buffers will be rings around the input features, and will not overlap or cover the input features (the area inside the input polygon will be erased from the buffer).
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clt_cabq
Frequent Contributor

oh dear, i missed that that limitation, sheesh. Is there another approach to doing what I want but with points? 

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DanPatterson
MVP Esteemed Contributor

buffer the point, then multi-ring buffer the buffer,

or take the convex or concave hull of the point cloud and do the same


... sort of retired...
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clt_cabq
Frequent Contributor

Ultimately my solution was to do a half mile buffer of the input points, then a 1 mile buffer of points, then a multi-ring buffer of 0.5 miles with outside polygon only for the half mile, then the same thing for the one-mile buffer. Otherwise you end up with 'inner' polygons. At the end of the day I end up with 3 feature classes, that I can merge together into a single one if i wanted, or use all 3 as inputs to the count overlaps tool. Its a really bizarre problem that shouldn't be as difficult as it is.

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