Merging sliver polygons

JamesLeuzinger1

Hi

I have an Dataset with 2000 Polygons. 900 Polygons are sliver Polygons with an area smaller than 100 m² that I want to eliminate. I want them to merge with the neighboring polygon based on the field "GS" (shortinteger(1))in the attributtable. If there are more than 1 Polygons neighboring with the sliver polygon then the one with the longest touching line should be Chosen.

Very thanfull for your help!

regards James

RobertBorchert

I once had this issue with a lake polygon shapefile I received.  There where some 2000 slivers.

I could not automate it.  What I did was go to the first sliver then selected the larger polygon I wanted it to be part of then used select by location to select all polygons touching it.  removed the ones I didn't want merged and hit the merge button and used the big polygon as the merge leader.


sounds daunting but with only 900 you might just be better off knuckling down and just plowing through it. I would even suggest symbolizing the slivers with something really distinctive so you can spot them a lot easier and only that polygon layer visible.

If you sort your table by slivers first you can simply select and pan swipe/select merge go on to the next.