On Mon, 4 Feb 2008, Milton Cezar Ribeiro wrote:
Dear Roger,
I am not sure if I really need to convert my polygons to psp format.
In fact I have a shapefile with polygons and a pair of points
(x0,y0,x1,y1) and what I need is:
(1) to checkout if the lines defined by (x0,y0,x1,y1) cross or n
Dear Roger,
I am not sure if I really need to convert my polygons to psp format.
In fact I have a shapefile with polygons and a pair of points (x0,y0,x1,y1) and
what I need is:
(1) to checkout if the lines defined by (x0,y0,x1,y1) cross or not any
polygon and
(2) to identify which polygons
