New Decimater mods:

EdgeLength
  Hausdorff distance
  Normal Deviation



git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@450 fdac6126-5c0c-442c-9429-916003d36597

src/OpenMesh/Tools/Decimater/ModEdgeLengthT.hh

@@ -0,0 +1,118 @@
+/*===========================================================================*\
+ *                                                                           *
+ *                               OpenMesh                                    *
+ *      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen      *
+ *                           www.openmesh.org                                *
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+ *  This file is part of OpenMesh.                                           *
+ *                                                                           *
+ *  OpenMesh is free software: you can redistribute it and/or modify         *
+ *  it under the terms of the GNU Lesser General Public License as           *
+ *  published by the Free Software Foundation, either version 3 of           *
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+ *  following exceptions:                                                    *
+ *                                                                           *
+ *  If other files instantiate templates or use macros                       *
+ *  or inline functions from this file, or you compile this file and         *
+ *  link it with other files to produce an executable, this file does        *
+ *  not by itself cause the resulting executable to be covered by the        *
+ *  GNU Lesser General Public License. This exception does not however       *
+ *  invalidate any other reasons why the executable file might be            *
+ *  covered by the GNU Lesser General Public License.                        *
+ *                                                                           *
+ *  OpenMesh is distributed in the hope that it will be useful,              *
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
+ *  GNU Lesser General Public License for more details.                      *
+ *                                                                           *
+ *  You should have received a copy of the GNU LesserGeneral Public          *
+ *  License along with OpenMesh.  If not,                                    *
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+\*===========================================================================*/
+
+/*===========================================================================*\
+ *                                                                           *
+ *   $Revision: 448 $                                                        *
+ *   $Date: 2011-11-04 13:59:37 +0100 (Fri, 04 Nov 2011) $                   *
+ *                                                                           *
+\*===========================================================================*/
+
+/** \file ModEdgeLengthT.hh
+ */
+
+//=============================================================================
+//
+//  CLASS ModEdgeLengthT
+//
+//=============================================================================
+
+
+#ifndef MB_MODEDGELENGTHT_HH
+#define MB_MODEDGELENGTHT_HH
+
+
+//== INCLUDES =================================================================
+
+#include <OpenMesh/Tools/Decimater/ModBaseT.hh>
+#include <float.h>
+
+
+//== NAMESPACES ===============================================================
+
+namespace OpenMesh  {
+namespace Decimater {
+
+
+//== CLASS DEFINITION =========================================================
+
+
+template <class DecimaterT>
+class ModEdgeLengthT : public ModBaseT<DecimaterT>
+{
+public:
+   
+  DECIMATING_MODULE( ModEdgeLengthT, DecimaterT, EdgeLength );
+
+  /// Constructor
+  ModEdgeLengthT(DecimaterT& _dec, 
+		 float _edge_length = FLT_MAX,
+		 bool  _is_binary   = true);
+ 
+
+  /// get edge_length
+  float edge_length() const { return edge_length_; }
+
+  /// set edge_length
+  void set_edge_length(float _f) 
+  { edge_length_ = _f; sqr_edge_length_ = _f*_f; }
+  
+
+  /** Compute priority:
+      Binary mode: Don't collapse edges longer then edge_length_
+      Cont. mode:  Collapse smallest edge first, but
+                   don't collapse edges longer as edge_length_
+  */
+  float collapse_priority(const CollapseInfo& _ci);
+
+
+private:
+
+  Mesh&  mesh_;
+  typename Mesh::Scalar  edge_length_, sqr_edge_length_;
+};
+
+
+//=============================================================================
+} // END_NS_DECIMATER
+} // END_NS_OPENMESH
+//=============================================================================
+#if defined(INCLUDE_TEMPLATES) && !defined(MB_MODEDGELENGTHT_C)
+#define MB_MODEDGELENGTHT_TEMPLATES
+#include "ModEdgeLengthT.cc"
+#endif
+//=============================================================================
+#endif // MB_MODEDGELENGTHT_HH defined
+//=============================================================================
+