Hi ,
As you see in the image below ,i need to merge these small polygons to the bigger polygon beside,is there a way to do that?
Thanks!
Question
combine surfaces when they are attached
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If the small parts and the larger polygon have a common ID, you can use the Dissolver transformer with the common ID as the "Group By" attribute.
+51- Evangelist
thanks @david_r for your answer , No ,they don't have a common ID ,no attributs ,just geometry
If you don't have a common ID to dissolve on you'll need to create some rules to determine which polygons should be dissolved together, e.g. you might decide that everything under a certain area should be dissolved to the adjacent polygon
If you don't have a common ID to dissolve on you'll need to create some rules to determine which polygons should be dissolved together, e.g. you might decide that everything under a certain area should be dissolved to the adjacent polygon
thanks @ egomm but where can I find this option?
+51- Evangelist
thanks @ egomm but where can I find this option?
It's not a single option. You would have to find all polygons less than 100sqm, find which polygons neighbour them, choose which to merge with, assign a common id and then dissolve. Depending on the complexity of your data it can get quite involved
A simple example
dissolve_small_polygons.fmwt
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