0026106: BRepMesh - revision of data model
[occt.git] / src / BRepMesh / BRepMesh_NURBSRangeSplitter.hxx
diff --git a/src/BRepMesh/BRepMesh_NURBSRangeSplitter.hxx b/src/BRepMesh/BRepMesh_NURBSRangeSplitter.hxx
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+// Created on: 2016-07-07
+// Copyright (c) 2016 OPEN CASCADE SAS
+// Created by: Oleg AGASHIN
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _BRepMesh_NURBSRangeSplitter_HeaderFile
+#define _BRepMesh_NURBSRangeSplitter_HeaderFile
+
+#include <BRepMesh_UVParamRangeSplitter.hxx>
+#include <IMeshData_Types.hxx>
+#include <IMeshTools_Parameters.hxx>
+
+//! Auxiliary class extending UV range splitter in order to generate
+//! internal nodes for NURBS surface.
+class BRepMesh_NURBSRangeSplitter : public BRepMesh_UVParamRangeSplitter
+{
+public:
+
+  //! Constructor.
+  BRepMesh_NURBSRangeSplitter()
+  {
+  }
+
+  //! Destructor.
+  virtual ~BRepMesh_NURBSRangeSplitter()
+  {
+  }
+
+  //! Updates discrete range of surface according to its geometric range.
+  Standard_EXPORT virtual void AdjustRange() Standard_OVERRIDE;
+
+  //! Returns list of nodes generated using surface data and specified parameters.
+  Standard_EXPORT virtual Handle(IMeshData::ListOfPnt2d) GenerateSurfaceNodes(
+    const IMeshTools_Parameters& theParameters) const Standard_OVERRIDE;
+
+protected:
+
+  //! Initializes U and V parameters lists using CN continuity intervals.
+  Standard_EXPORT virtual void initParameters() const;
+
+private:
+
+  //! Computes parameters of filter and applies it to the source parameters.
+  Handle(IMeshData::SequenceOfReal) computeGrainAndFilterParameters(
+    const IMeshData::IMapOfReal&            theSourceParams,
+    const Standard_Real                     theTol2d,
+    const Standard_Real                     theRangeDiff,
+    const Standard_Real                     theDelta,
+    const IMeshTools_Parameters&            theParameters,
+    const Handle(NCollection_IncAllocator)& theAllocator) const;
+
+  //! Filters parameters in order to avoid too dence distribution.
+  Handle(IMeshData::SequenceOfReal) filterParameters(
+    const IMeshData::IMapOfReal&            theParams,
+    const Standard_Real                     theMinDist,
+    const Standard_Real                     theFilterDist,
+    const Handle(NCollection_IncAllocator)& theAllocator) const;
+
+private:
+
+  GeomAbs_SurfaceType mySurfaceType;
+};
+
+#endif