13,147,182 members (27,802 online)
Add your own
alternative version

#### Stats

177.8K views
1.5K downloads
23 bookmarked
Posted 6 Feb 2002

# Tesselation of Mono Connected Non Convex Polygon

, 6 Feb 2002
 Rate this:
Please Sign up or sign in to vote.
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

## License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

## About the Author

 United States
No Biography provided

## Comments and Discussions

 View All Threads First Prev Next
 Robust tesselation Skavenger1-Jul-05 22:04 Skavenger 1-Jul-05 22:04
 Re: Robust tesselation [modified] Liu Guoping9-Aug-06 15:51 Liu Guoping 9-Aug-06 15:51
 Re: Robust tesselation Skavenger310-Aug-06 1:42 Skavenger3 10-Aug-06 1:42
 Hey Liu, I have read all libtess sources/docs, and got inspired during the writing of my tessellator, as weel as for another good paper, that explain the sweepline algorithm in details ( http://www.cs.ucsb.edu/~suri/cs235/Triangulation.pdf ).So, yes, i'll follow your suggestion adding the greetings to SGI. My decision to rewite a tesselator instead of using the libtess ones is due to the fact that i had a try to be more robust and support more degeneration cases, without to introduce overheads of any kind. Anyway, now, i'm oriented in a direction to use OpenGL drawing tecniques that don't need of the tesselation step, beacuse this step is too expensive, and it needs a too high robustness level. Just for curiosity, Are you using Amanith? Do u use the tessellation for drawing purposes or for something other? ( my mail is: mfabbri ]at[ amanith ]dot[ org )
 Last Visit: 31-Dec-99 18:00     Last Update: 23-Sep-17 21:18 Refresh 1

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

Permalink | Advertise | Privacy | Terms of Use | Mobile
Web02 | 2.8.170915.1 | Last Updated 7 Feb 2002
Article Copyright 2002 by Peppino Sbargzeguti
Everything else Copyright © CodeProject, 1999-2017
Layout: fixed | fluid