MINGLE
 Multiresolution in Geometric Modelling
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Data Sets

This page is under construction

The following data sets represent the main types of data sets appropriate to the project. The data sets are split into four types, according to whether (1) the data is 3D (free form surfaces) or 2.5D (terrain-type surfaces) and (2) the data is in the form of (x,y,z) points, in no particular ordering (an "unorganized point set") or in the form of a triangulation.

  • 2.5D point sets
  • 3D point sets
  • 2.5D triangle meshes
  • 3D triangle meshes

    • The data format for points sets is an integer representing the number of points, followed by the coordinate triples of the points. The data format for triangulations is first a pair of integers, n and m, represnting the number of points and the number of triangles respectively, followed by the coordinate triples of the points and then the integer triples of the triangles. As regards the triangle triples, the points are indexed from 0 to n-1. This format is often referred to as an "indexed face set".


    Point sets

    n

    x0 y0 z0
    x1 y1 z1
    .
    .
    .
    xn-1 yn-1 zn-1
    Triangle meshes

    n m

    x0 y0 z0
    x1 y1 z1
    .
    .
    .
    xn-1 yn-1 zn-1

    i0 j0 k0
    i1 j1 k1
    .
    .
    .
    im-1 jm-1 km-1


    Prepared by: SINTEF Applied Mathematics & TECHNION, Computer Science Dept.
    Last update: January 10, 2001 | Vitaly Surazhsky