Arbeitsgruppe Geometrie

Mathematische Visualisierung II (Sommer 2010)

Practice 3 (jReality: Geometry)

Homework: create a cylinder (submission: 13.05)

Check following jReality tutorials:
• Use geometry factories,
• Use a point set factory,
• Use an indexed line set factory,
• Use an indexed face set factory,
• Attach face colors using a factory,
• Unwrap a geometry using a factory,
• Expand your ngon-surface to a cylinder. Use IndexedFaceSet-datastructure and IndexedFaceSetFactory (should look like this)

Small project: triangulated cylinder with halfedge-datastructur (submission: 27.05)

For information about halfedge see:
• the documentation of the CGAL Halfedge Data Structure or
• a brief introduction (flipcode.com)
Preparation for the project:
• Check out the current version of our svn repository. There is added some stuff, which we need to create a heds (halfedgedatastructur)
• These libs are added: halfedge.jar, jreality_halfedge.jar
• Following Classes are added at the package "hedsstuff": Converter.java, HEDS.java, HEDSUtil.java, testHeds.java
• The Class testHeds.java contains a short introduction for the other classes
Project:
• Try to write a tringulation algorithm, which devides your cylinderfaces to triangles