Better surface representations by Delaunay tetrahedronized irregular networks
E. Verbree, Peter J. M. van Oosterom · Research Repository (Delft University of Technology) · 2003
The Triangulated Irregular Network (TIN) created by the 3D-Analyst extensions of ArcGIS 8.x and ArcView 3.x are based on the Delaunay empty circum circle criterion, which is believed to optimize how faces model a surface.This is not the case as this algorithm ignores the Z-value of the surface points.To get a better representation of the surface this papers describes a method based on the Delaunay Tetrahedronized Irregular Network (TEN).This TEN stores the measurements (lines-off-sight to the surface-points).An ArcView algorithm is applied on this TEN to retrieve the TIN that represents the surface as good as possible.