On Fri, Mar 3, 2023 at 1:52 PM Paul Meems <[email protected]> wrote: > > How can I algorithmically create a parcel border that accounts for islands or > holes within the parcel based on a list of coordinates? > > While GDAL+GEOS has a Convex hull method, it only identifies the outer border. > > Has GDAL+GEOS a method that I can use to detect inner holes as well, such as > in a donut-shaped field? > > The output can be json or shapefile, that doesn't matter.
GRASS GIS can do that: see the addon v.concave.hull (it is a Python script): https://grass.osgeo.org/grass-stable/manuals/addons/v.concave.hull.html#creating-alpha-shapes HTH, Markus _______________________________________________ gdal-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/gdal-dev
