(Constrained) Delaunay Triangulation of Planar Straight Line Graphs (pure Python)
Tri - (Constrained) Delaunay Triangulation of Planar Straight Line Graphs
- Download the source
- Run python setup.py install (or python setup.py develop)
To triangulate a polygon with one outer and one inner shell:
from tri import ToPointsAndSegments, triangulate from tri.delaunay import output_triangles, TriangleIterator # create points and segments for triangulation pts_segs = ToPointsAndSegments() pts_segs.add_polygon([[(0,0), (10,0), (5,10), (0,0)], [(0,0), (8,2), (6,4), (5,7), (0,0)] ], ) # triangulate the points and segments dt = triangulate(pts_segs.points, pts_segs.infos, pts_segs.segments) # write the output with open("tris.wkt", "w") as fh: output_triangles([t for t in TriangleIterator(dt)], fh)
The resulting file is readable with QGIS (Add Delimited Text Layer).
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