Merge walls into unifed mesh with corners normalization

Question

I'm working on some simple building planning editor. For 3D preview I'm using Three.js library for Dart (from GitHib). So far algorithm is pretty simple: it converts single lines to rectangles and then extrude it (based on thickness and height).

Is it possible to normalize vertex position depending on adjacent walls? Technically I store list of walls, within can query adjacent walls and can calculate Vector2 list for mesh generation for each wall. I have to apply changes to each wall separately due to extrusion.

Thanks in advance!

Answer 1

Maybe you could instead try to properly tessellate the 2D thickened walls, and then only extrude them (instead of extruding, tessellating and then trying to fix the joints). For simple polylines, joint tessellation can be handled like described in this article: http://www.codeproject.com/Articles/226569/Drawing-polylines-by-tessellation.