Beta 1.9.3.9
Posted: Sat Apr 03, 2004 6:48 pm
Two new distributions: the full version of DPlot at http://www.dplot.com/beta/dplotbeta.exe, and DPlot Jr from http://www.dplot.com/beta/dplotjrbeta.exe. This beta version of DPlot Jr adds the full version's Number Triangles, Delete Triangles, and Delete Thin Triangles commands to the Edit menu for contour plots. Both the full version and DPlot Jr add a new macro/DDE command:
Edit: Beta versions removed. Get the latest releases from http://www.dplot.com/evaluation.htm and/or http://www.dplot.com/other.htm
[DeleteThinTriangles(angle)]
Removes triangles with interior angles less than angle if the associated triangle vertex is on a free edge. Thin triangles often do a poor job of mapping a surface. Triangle removal is recursive: if triangle B has an interior angle less than angle which borders triangle A, and triangle A is removed, then triangle B will also be removed.
This command is useful for deleting triangles from a data set that isn't intended to be convex (DPlot always generates a convex triangular mesh for random 3D points).

[DeleteThinTriangles(angle)]
Removes triangles with interior angles less than angle if the associated triangle vertex is on a free edge. Thin triangles often do a poor job of mapping a surface. Triangle removal is recursive: if triangle B has an interior angle less than angle which borders triangle A, and triangle A is removed, then triangle B will also be removed.
This command is useful for deleting triangles from a data set that isn't intended to be convex (DPlot always generates a convex triangular mesh for random 3D points).