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# Tesselation of Mono Connected Non Convex Polygon

, 6 Feb 2002
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Tesselation of mono connected non convex polygon

## Introduction

A simple alternative to OpenGL polygon tesselation callback. You can focus on file triangle.h that contain the class to evaluate convexity of polygon and tesselate the polygon. No extra points are inserted. You can work only with planar polygon also in 3D.

Every suggestion in order to speed up the class and create better tesselation ('better' triangles) is appreciated.

## History

• 6th February, 2002: Initial post

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### IDC: The Intelligent Integrated Enterprise

 First PrevNext
 cut object in slicing joy_nim 24-Feb-06 6:01
 Possible error and fix GregDude 21-Jul-05 15:34
 Robust tesselation Skavenger 1-Jul-05 22:04
 Re: Robust tesselation [modified] Liu Guoping 9-Aug-06 15:51
 Re: Robust tesselation Skavenger3 10-Aug-06 1:42
 Problem in CPolyTri::ComputeNormal Torsten B 8-Jun-04 1:43
 Re: Problem in CPolyTri::ComputeNormal Sebastien Maraux 13-Dec-04 3:52
 Re: Problem in CPolyTri::ComputeNormal Sébastien Maraux 13-Dec-04 23:45
 Good Article mchapman1234 22-May-04 11:50
 Found an index range error in code TruePyroman 23-Feb-03 14:38
 Re: Found an index range error in code topus 10-Apr-03 2:46
 Better tesselation jeckle 8-Feb-02 9:00
 Hi ,   Ok Delauney rules in good tesselation. But in the case of non-convex poly you have to use the constrained form of the algorithm (DCT). You can achieve good tesselation without get rid of your algorithm : as a post - process phase you can "mimimize" the edge size of convex quads. It's like use the turn edge tools in 3ds max. In this way, long triangles are converted in more equilaterals ones. If i got time i'll try and send it to you.
 Re: Better tesselation pepito 10-Feb-02 22:05
 Re: Better tesselation jeckle 11-Feb-02 10:46
 Re: Better tesselation Rick York 11-Feb-02 10:53
 Better tesselation Tim Aidley 8-Feb-02 2:45
 Re: Better tesselation kilowatt 8-Feb-02 8:21
 Re: Better tesselation pepito sbarzeguti 10-Feb-02 22:03
 Guareschiano anche tu? Anonymous 7-Feb-02 21:19
 Re: Guareschiano anche tu? Dieter Hammer 8-Feb-02 0:04
 Re: Guareschiano anche tu? pepito 8-Feb-02 1:38
 Re: Guareschiano anche tu? Anonymous 10-Feb-02 22:37
 Very poor article on very interesting subject... George 7-Feb-02 14:25
 Re: Very poor article on very interesting subject... Pepito Sbarzeguti 7-Feb-02 21:46
 Re: Very poor article on very interesting subject... Anonymous 7-Feb-02 21:47
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