I have a DTM and a site plan. I have converted the site plan into 3d polys and "send to surface"'d it to the DTM, which seemed to work well.
My problem is that when views in OpenGL mode the lines of the site plan are very fine, so much so that they appear slightly dotted. I have tried increasing the line thickness but this seems to have no effect in OpenGL mode - it makes a difference in wireframe mode and looks like it should help but in OpenGL mode the lines remain waffer-thin.
Am I missing something here?