I have a line shapefile of the outline of a water body. It was created by conversion of the polygon to line.
I am looking to add a layer of 500m standoff from the shore into the lake.
I have added a negative buffer of -500m, and that gives me the area which is accessible, however I want to just have that 500m as a polygon.
A picture speaks a 1000 words. See below.
What I am looking for is a polygon of the purple area. When I buffer the line it buffers both sides, I just want one side.