I have calculated some contour-lines using gdal-contour for two elevation model into a postgis database. One is high res and the other lower res. Now I am seeing problems at the edge of my high res data-source where lines are creating a black border. See the attached image.
It seems as if the lines of the high res model continue over the edge. Like there would be a massive drop in altitude and therefore there are so many lines stacked on one of another.
My question now is: Can I somehow cut those lines? I thought I might be able to use the data part of the GeoTiff that I used for my high res contour-lines to generate a shape. Then shrink the shape by let's say 10m or so and use that shape to cut my contour line?!? Is that somehow possible using PostGIS and gdal?
Any help is very appreciated!!!
أكثر...
It seems as if the lines of the high res model continue over the edge. Like there would be a massive drop in altitude and therefore there are so many lines stacked on one of another.
My question now is: Can I somehow cut those lines? I thought I might be able to use the data part of the GeoTiff that I used for my high res contour-lines to generate a shape. Then shrink the shape by let's say 10m or so and use that shape to cut my contour line?!? Is that somehow possible using PostGIS and gdal?
Any help is very appreciated!!!
أكثر...