I have a point table containing values ranging from 0 to 100 and I would like to draw a contour line for the value 70. (See image below)
I know how to create contour lines in QGIS for raster data but now I would like to do it with vector data (my point table) using PostGIS so that it can be integrated in a python script.
Any idea on how to start?
EDIT: This question is different from Generating contour lines and filled contours from points as it doesn't involve raster data (neither in the input nor in the output)