QGIS has "polygon to line" but this isn't exact reverse engineering of "line to polygon". I want no overlapped border closed lines, just segmented (on each intersected point) lines. Additionally I ...
I hope I can make my question I posted yesterday clearer... sorry! Basically, I want to obtain the opposite of this: How to convert fake donut holes in polygons to real ones? Such polygons will ...
This is a difficult one I think. I'm trying to get a polygon geometry out of OSM coastline data converted to a shapefile of "water polygons". This polygons contain rings, (e.g. an island completely ...
I'm using OGR to perform a union using UnionCascaded. All my polygons have been created by GDAL polygonize which ensures that all polygons follow pixel edges and should therefore align nicely. But I ...