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I am trying to create a Delaunay triangulation of a set of 3692 points with QGIS 1.8.0. The resulting set of polygons appears unfinished, leaving a small part of the original map uncovered by triangles and a small set of points not used in any triangle. Is there a limit of the number of input points or is there some other constraint?

Best regards from France

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Can you provide a link or graphic showing the results you are getting? – RyanDalton Aug 8 '12 at 14:14

You can use GRASS GIS for this - the most easy way is through the Sextante plugin, no GRASS skills are required. It shall deliver a complete Delaunay triangulation.

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Good idea, this also helped with my problematic dataset. – lynxlynxlynx Aug 9 '12 at 8:15

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