You turn 2D contiguous line geometry in to contours. The command "stitches" each of the line/arc/curve segments in to a single element that can be seleted, and the starting point and direction of cut is identified. You MUST HAVE contiguous geometry for this to work - "perfect" end-to-end connections of each element of the chain.
The "Contour" command is under "Other" in the top menu. |