Hi,
How do I divide an area into smaller areas ( I am looking for functionality of st_subdivide in postgis).
I need to split some big areas into smaller ones (and all smaller ones should have the same attributes).
I understand that it means that underlying topology would change( It would add more boundaries).
When v.in.ogr imports a shapefile in Grass GIS, it automatically splits the overlapping areas to make them topologically correct, so I am hoping that
there is already some way to just split a topologically valid area as well…
Le 13 octobre 2021 22:57:21 GMT+01:00, B H <hemantbist@gmail.com> a écrit :
Hi,
How do I divide an area into smaller areas ( I am looking for functionality
of st_subdivide in postgis).
I need to split some big areas into smaller ones (and all smaller ones
should have the same attributes).
I understand that it means that underlying topology would change( It would
add more boundaries).
When v.in.ogr imports a shapefile in Grass GIS, it automatically splits the
overlapping areas to make them topologically correct, so I am hoping that
there is already some way to just split a topologically valid area as
well...
I don't think that there is any readymade module for this. You could just create a fixed grid with v.mkgrid and v.overlay it with something like this:
Hi,
How do I divide an area into smaller areas ( I am looking for functionality
of st_subdivide in postgis).
I need to split some big areas into smaller ones (and all smaller ones
should have the same attributes).
I understand that it means that underlying topology would change( It would
add more boundaries).
When v.in.ogr imports a shapefile in Grass GIS, it automatically splits the
overlapping areas to make them topologically correct, so I am hoping that
there is already some way to just split a topologically valid area as
well…
I don’t think that there is any readymade module for this. You could just create a fixed grid with v.mkgrid and v.overlay it with something like this: