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Questions tagged [slivers]

Questions related to identifying or removing polygon slivers.

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51
votes
10answers
52k views

Removing small spaces (slivers) between polygons? [closed]

I have a set of polygons representing administrative districts. The districts were digitized by hand, and there are small spaces (slivers) between polygons where the polygons should be touching. ...
8
votes
3answers
4k views

Removing small polygon gaps in Shapely polygon?

I know this issue has been addressed before with different software, but how do I do it with Shapely? I have a polygon with a very small gap on the interior of the shape: Here is a close up: The ...
7
votes
2answers
2k views

Deleting small gaps (slivers) between polygons?

I try to delete the slivers that appeared when I have merged some polygons. I have two different cases: For the CASE 1, no problem I fill the gap with: CREATE OR REPLACE FUNCTION sliver_killer(...
12
votes
7answers
3k views

How to identify polygons with “flag” sliver errors

Working in ArcMap, I have come across errors in a polygon layer that I will call "flag slivers" (taken from similar language in parcels call "flag lots"). These sliver polygons (see image below) are ...
5
votes
2answers
5k views

Removing sliver polygons in ArcGIS Desktop?

I unioned 2 layers into 1 layer, and it created sliver polygons. I used the elimination tool to merge them with neighboring polygons. As as result, it merges all sliver polygons to only one polygon (...
3
votes
1answer
609 views

Using Check Geometries plugin for polygons in QGIS?

I've a few hundred polygon features with many duplicate nodes, gaps, overlaps and other geometry errors. Fixing all errors seems to be quite tricky. I had to run the duplicate nodes check twice to fix ...
2
votes
1answer
811 views

How to correct topology area boundary errors (slivers/gaps) on arcs in arcgis / arcsde

I use arcgis 10.1 (arcinfo licence) with arcsde to connect to a SQL Server database. The initial dataset has around 100k polygons (used for land registration, having a resolution that is around 1cm ...
1
vote
3answers
2k views

Removing Slivers/Holes From Polygons using ArcGIS for Desktop?

I have a village level shapefile. Using Dissolve_management, I collapse the villages to district level. I also use Multi_Part option to prevent multiple entries for same polygon and so the resulting ...