I have a complex polygon like the on in the image below (it depicts roads). I would like to split it up in simpler shapes, so that each road is a separate polygon. Then I could calculate the center line of each polygon in a meaningful way.
How could I split this up?
+60DonutBridgeBuilder, as @danullen says, and maybe a Chopper or a Tiler as well. But that wouldn't necessarily get you individual roads.
+22I would start by using the boundaries (GeometryCoercer).
Then try the Chopper (chop by 2 vertices to create line segments).
Not sure how to go from there, but it could be a start.
Hope this helps.
+11When it's about the geometric complexity you show in the image, the CenterLineReplacer (Medial Axis setting) might work, with some cleanup afterwards (LineCombiner, Tester).
I've have worked on similar polygons (Icelandic rivers with lots of islands), where finally I had to use a Triangulator and NeighborFinder. If other efforts don't work, please upload the polygon as vector data.
