- added the set_error_tolerance_factor function to ModBaseT and implemented it in inherited classes as necessary

- added the set_error_tolerance_factor function to BaseDecimaterT, which calls set_error_tolerance_factor for all loaded Mods
- implemented a decimate_constraints_only function for the McDecimater (and adjusted the MixedDecimater accordingly)
- implemented stop criterions for the McDecimater
- added some OpenMP loops for the sample generation to the McDecimater

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@685 fdac6126-5c0c-442c-9429-916003d36597

src/OpenMesh/Tools/Decimater/ModHausdorffT.hh

@@ -124,6 +124,9 @@ class ModHausdorffT: public ModBaseT<MeshT> {
     /// re-distribute points
     virtual void postprocess_collapse(const CollapseInfo& _ci);
 
+    /// set the percentage of tolerance
+    void set_error_tolerance_factor(double _factor);
+
   private:
 
     /// squared distance from point _p to triangle (_v0, _v1, _v2)