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Questions tagged [buffer]

A region enclosing a point, line, or polygon at a specified distance.

1 vote
2 answers
996 views

Error adding buffer to polyline in ArcMap 10

As the next step to what I did in this previous question, I would like to add a buffer to a polyline, with 5 meters on either side. I tried adding buffer to two versions of the line, one in ...
hpy's user avatar
  • 3,157
6 votes
1 answer
5k views

Understanding why buffers not circular in QGIS?

I would like to select areas under a particular circular radius in QGIS. I believe this is accomplished with the buffer tool, but when I specify the radius the area is not circular. How to make them ...
Robertg's user avatar
  • 467
4 votes
1 answer
4k views

How to Buffer with intersections in QGIS

I am buffering a layer of facilities (points). I will then use the buffer to clip and intersect another layer, containing resources. I want to answer the question, how much of the resource lies ...
gisuser's user avatar
  • 545
1 vote
2 answers
604 views

Buffer in ArcView/Basic vs ArcInfo/Advanced level licenses of ArcGIS Desktop?

I have ArcGIS Desktop 9.3. Is Buffer only available with an ArcInfo (called Advanced from 10.0) or is there a way to buffer with an ArcView (called Basic from 10.0) level license?
Zoran's user avatar
  • 1,601
3 votes
1 answer
2k views

WARNING 000632: datum conflict when creating buffer in ArcGIS Desktop?

A buffer I created successfully executed, but I received the following message in ArcGIS Desktop 10: WARNING 000632: Datum conflict between map and output. How can I fix this?
Beth's user avatar
  • 55
3 votes
2 answers
3k views

Using Buffer Wizard in ModelBuilder?

I am creating a model in ArcMap 10 and I need to use the Buffer Wizard tool to create multiple buffers within a polygon feature class. The problem is, I can't seem to place the Buffer Wizard within my ...
Tanner's user avatar
  • 7,383
13 votes
5 answers
1k views

Simulating the expansion of polygon features

I've got what I'm hoping will be an interesting question. I'm working on an assignment for an intro to GIS course that uses some Gulf oil spill data to introduce common vector-based spatial analysis ...
James M's user avatar
  • 453
1 vote
2 answers
5k views

"Item not found in this collection" when trying to set the Shape on IFeatureBuffer

I'm working on code to open a 3rd party data file and convert it into a collection of features in a custom layer based on FeatureLayer. I have had no issue importing the data itself (nodal data for ...
DBaker's user avatar
  • 123
19 votes
4 answers
7k views

Creating one-sided buffers or parallel lines in PostGIS?

I'm looking for a way to create so-called one-sided buffers or parallel lines in PostGIS. Example: 1. buffer, 2. one-side, 3. both-sides I've found some discussion on the mailing list from 2009 and ...
underdark's user avatar
  • 84.3k
8 votes
4 answers
4k views

Improving upon ArcGIS Buffer/Dissolve performance?

I'm wondering if anyone else has experienced significant performance penalties when using the ArcGIS buffer function with the 'dissolve' option on point features. My dataset is a shapefile of 260 ...
WolfOdrade's user avatar
  • 2,758
5 votes
2 answers
1k views

Compound variables in Model Builder?

I'm trying to create a model wherein one of the parameters is a compound variable, that is made of multiple variables joined together. How can this be done? For example: create an insider buffer ...
matt wilkie's user avatar
  • 28.2k
7 votes
1 answer
3k views

Inside buffer with attributes in ArcGIS?

How can I create buffers for polygons that: a) lie only inside the polygon boundary, and b) know who their parent is? An example of where this is useful is First Nation Traditional Territories. ...
matt wilkie's user avatar
  • 28.2k
9 votes
5 answers
2k views

Buffers of public transportation transit times

I'd like to be able to create buffers/zones/rings of transit times using Denver's public transportation system. For an example of what I'm talking about, check out triptropnyc.com - I don't need it ...
Matt Parker's user avatar

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