+++ /dev/null
-// Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
-//
-// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
-//
-// This library 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 2.1 of the License.
-//
-// This library 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 Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
-//
-// File : SMESH_Block.hxx
-// Created : Tue Nov 30 12:42:18 2004
-// Author : Edward AGAPOV (eap)
-//
-#ifndef SMESH_Block_HeaderFile
-#define SMESH_Block_HeaderFile
-
-#include "SMESH_SMESH.hxx"
-
-//#include <Geom2d_Curve.hxx>
-//#include <Geom_Curve.hxx>
-//#include <Geom_Surface.hxx>
-
-#include <TopExp.hxx>
-#include <TopTools_IndexedMapOfOrientedShape.hxx>
-#include <TopoDS_Edge.hxx>
-#include <TopoDS_Face.hxx>
-#include <TopoDS_Shell.hxx>
-#include <TopoDS_Vertex.hxx>
-#include <gp_XY.hxx>
-#include <gp_XYZ.hxx>
-#include <math_FunctionSetWithDerivatives.hxx>
-
-#include <ostream>
-#include <vector>
-#include <list>
-
-class SMDS_MeshVolume;
-class SMDS_MeshNode;
-class Adaptor3d_Surface;
-class Adaptor2d_Curve2d;
-class Adaptor3d_Curve;
-class gp_Pnt;
-
-// =========================================================
-// class calculating coordinates of 3D points by normalized
-// parameters inside the block and vice versa
-// =========================================================
-
-class SMESH_EXPORT SMESH_Block: public math_FunctionSetWithDerivatives
-{
- public:
- enum TShapeID {
- // ----------------------------
- // Ids of the block sub-shapes
- // ----------------------------
- ID_NONE = 0,
-
- ID_V000 = 1, ID_V100, ID_V010, ID_V110, ID_V001, ID_V101, ID_V011, ID_V111,
-
- ID_Ex00, ID_Ex10, ID_Ex01, ID_Ex11,
- ID_E0y0, ID_E1y0, ID_E0y1, ID_E1y1,
- ID_E00z, ID_E10z, ID_E01z, ID_E11z,
-
- ID_Fxy0, ID_Fxy1, ID_Fx0z, ID_Fx1z, ID_F0yz, ID_F1yz,
-
- ID_Shell
- };
- enum { // to use TShapeID for indexing certain type subshapes
-
- ID_FirstV = ID_V000, ID_FirstE = ID_Ex00, ID_FirstF = ID_Fxy0
-
- };
-
-
- public:
- // -------------------------------------------------
- // Block topology in terms of block sub-shapes' ids
- // -------------------------------------------------
-
- static int NbVertices() { return 8; }
- static int NbEdges() { return 12; }
- static int NbFaces() { return 6; }
- static int NbSubShapes() { return ID_Shell; }
- // to avoid magic numbers when allocating memory for subshapes
-
- static inline bool IsVertexID( int theShapeID )
- { return ( theShapeID >= ID_V000 && theShapeID <= ID_V111 ); }
-
- static inline bool IsEdgeID( int theShapeID )
- { return ( theShapeID >= ID_Ex00 && theShapeID <= ID_E11z ); }
-
- static inline bool IsFaceID( int theShapeID )
- { return ( theShapeID >= ID_Fxy0 && theShapeID <= ID_F1yz ); }
-
- static int ShapeIndex( int theShapeID )
- {
- if ( IsVertexID( theShapeID )) return theShapeID - ID_V000;
- if ( IsEdgeID( theShapeID )) return theShapeID - ID_Ex00;
- if ( IsFaceID( theShapeID )) return theShapeID - ID_Fxy0;
- return 0;
- }
- // return index [0-...] for each type of sub-shapes,
- // for example :
- // ShapeIndex( ID_Ex00 ) == 0
- // ShapeIndex( ID_Ex10 ) == 1
-
- static void GetFaceEdgesIDs (const int faceID, std::vector< int >& edgeVec );
- // return edges IDs of a face in the order u0, u1, 0v, 1v
-
- static void GetEdgeVertexIDs (const int edgeID, std::vector< int >& vertexVec );
- // return vertex IDs of an edge
-
- static int GetCoordIndOnEdge (const int theEdgeID)
- { return (theEdgeID < ID_E0y0) ? 1 : (theEdgeID < ID_E00z) ? 2 : 3; }
- // return an index of a coordinate which varies along the edge
-
- static double* GetShapeCoef (const int theShapeID);
- // for theShapeID( TShapeID ), returns 3 coefficients used
- // to compute an addition of an on-theShape point to coordinates
- // of an in-shell point. If an in-shell point has parameters (Px,Py,Pz),
- // then the addition of a point P is computed as P*kx*ky*kz and ki is
- // defined by the returned coef like this:
- // ki = (coef[i] == 0) ? 1 : (coef[i] < 0) ? 1 - Pi : Pi
-
- static int GetShapeIDByParams ( const gp_XYZ& theParams );
- // define an id of the block sub-shape by point parameters
-
- static std::ostream& DumpShapeID (const int theBlockShapeID, std::ostream& stream);
- // DEBUG: dump an id of a block sub-shape
-
-
- public:
- // ---------------
- // Initialization
- // ---------------
-
- SMESH_Block();
-
- bool LoadBlockShapes(const TopoDS_Shell& theShell,
- const TopoDS_Vertex& theVertex000,
- const TopoDS_Vertex& theVertex001,
- TopTools_IndexedMapOfOrientedShape& theShapeIDMap );
- // Initialize block geometry with theShell,
- // add sub-shapes of theBlock to theShapeIDMap so that they get
- // IDs acoording to enum TShapeID
-
- bool LoadBlockShapes(const TopTools_IndexedMapOfOrientedShape& theShapeIDMap);
- // Initialize block geometry with shapes from theShapeIDMap
-
- bool LoadMeshBlock(const SMDS_MeshVolume* theVolume,
- const int theNode000Index,
- const int theNode001Index,
- std::vector<const SMDS_MeshNode*>& theOrderedNodes);
- // prepare to work with theVolume and
- // return nodes in theVolume corners in the order of TShapeID enum
-
- bool LoadFace(const TopoDS_Face& theFace,
- const int theFaceID,
- const TopTools_IndexedMapOfOrientedShape& theShapeIDMap);
- // Load face geometry.
- // It is enough to compute params or coordinates on the face.
- // Face subshapes must be loaded into theShapeIDMap before
-
- static bool Insert(const TopoDS_Shape& theShape,
- const int theShapeID,
- TopTools_IndexedMapOfOrientedShape& theShapeIDMap);
- // Insert theShape into theShapeIDMap with theShapeID,
- // Not yet set shapes preceding theShapeID are filled with compounds
- // Return true if theShape was successfully bound to theShapeID
-
- static bool FindBlockShapes(const TopoDS_Shell& theShell,
- const TopoDS_Vertex& theVertex000,
- const TopoDS_Vertex& theVertex001,
- TopTools_IndexedMapOfOrientedShape& theShapeIDMap );
- // add sub-shapes of theBlock to theShapeIDMap so that they get
- // IDs acoording to enum TShapeID
-
-public:
- // ---------------------------------
- // Define coordinates by parameters
- // ---------------------------------
-
- bool VertexPoint( const int theVertexID, gp_XYZ& thePoint ) const {
- if ( !IsVertexID( theVertexID )) return false;
- thePoint = myPnt[ theVertexID - ID_FirstV ]; return true;
- }
- // return vertex coordinates, parameters are defined by theVertexID
-
- bool EdgePoint( const int theEdgeID, const gp_XYZ& theParams, gp_XYZ& thePoint ) const {
- if ( !IsEdgeID( theEdgeID )) return false;
- thePoint = myEdge[ theEdgeID - ID_FirstE ].Point( theParams ); return true;
- }
- // return coordinates of a point on edge
-
- bool EdgeU( const int theEdgeID, const gp_XYZ& theParams, double& theU ) const {
- if ( !IsEdgeID( theEdgeID )) return false;
- theU = myEdge[ theEdgeID - ID_FirstE ].GetU( theParams ); return true;
- }
- // return parameter on edge by in-block parameters
-
- bool FacePoint( const int theFaceID, const gp_XYZ& theParams, gp_XYZ& thePoint ) const {
- if ( !IsFaceID ( theFaceID )) return false;
- thePoint = myFace[ theFaceID - ID_FirstF ].Point( theParams ); return true;
- }
- // return coordinates of a point on face
-
- bool FaceUV( const int theFaceID, const gp_XYZ& theParams, gp_XY& theUV ) const {
- if ( !IsFaceID ( theFaceID )) return false;
- theUV = myFace[ theFaceID - ID_FirstF ].GetUV( theParams ); return true;
- }
- // return UV coordinates on a face by in-block parameters
-
- bool ShellPoint( const gp_XYZ& theParams, gp_XYZ& thePoint ) const;
- // return coordinates of a point in shell
-
- static bool ShellPoint(const gp_XYZ& theParams,
- const std::vector<gp_XYZ>& thePointOnShape,
- gp_XYZ& thePoint );
- // computes coordinates of a point in shell by points on sub-shapes
- // and point parameters.
- // thePointOnShape[ subShapeID ] must be a point on a subShape;
- // thePointOnShape.size() == ID_Shell, thePointOnShape[0] not used
-
-
- public:
- // ---------------------------------
- // Define parameters by coordinates
- // ---------------------------------
-
- bool ComputeParameters (const gp_Pnt& thePoint,
- gp_XYZ& theParams,
- const int theShapeID = ID_Shell,
- const gp_XYZ& theParamsHint = gp_XYZ(-1,-1,-1));
- // compute point parameters in the block.
- // Note: for edges, it is better to use EdgeParameters()
-
- bool VertexParameters(const int theVertexID, gp_XYZ& theParams);
- // return parameters of a vertex given by TShapeID
-
- bool EdgeParameters(const int theEdgeID, const double theU, gp_XYZ& theParams);
- // return parameters of a point given by theU on edge
-
-
- public:
- // ---------------
- // Block geomerty
- // ---------------
-
-
-
- public:
- // ---------
- // Services
- // ---------
-
- static bool IsForwardEdge (const TopoDS_Edge & theEdge,
- const TopTools_IndexedMapOfOrientedShape& theShapeIDMap) {
- int v1ID = theShapeIDMap.FindIndex( TopExp::FirstVertex( theEdge ).Oriented( TopAbs_FORWARD ));
- int v2ID = theShapeIDMap.FindIndex( TopExp::LastVertex( theEdge ).Oriented( TopAbs_FORWARD ));
- return ( v1ID < v2ID );
- }
- // Return true if an in-block parameter increases along theEdge curve
-
- static int GetOrderedEdges (const TopoDS_Face& theFace,
- TopoDS_Vertex theFirstVertex,
- std::list< TopoDS_Edge >& theEdges,
- std::list< int > & theNbVertexInWires);
- // Return nb wires and a list of oredered edges.
- // It is used to assign indices to subshapes.
- // theFirstVertex may be NULL.
- // Always try to set a seam edge first
-
- public:
- // -----------------------------------------------------------
- // Methods of math_FunctionSetWithDerivatives used internally
- // to define parameters by coordinates
- // -----------------------------------------------------------
- Standard_Integer NbVariables() const;
- Standard_Integer NbEquations() const;
- Standard_Boolean Value(const math_Vector& X,math_Vector& F) ;
- Standard_Boolean Derivatives(const math_Vector& X,math_Matrix& D) ;
- Standard_Boolean Values(const math_Vector& X,math_Vector& F,math_Matrix& D) ;
- Standard_Integer GetStateNumber ();
-
- protected:
-
- /*!
- * \brief Call it after geometry initialisation
- */
- void init();
-
- // Note: to compute params of a point on a face, it is enough to set
- // TFace, TEdge's and points for that face only
-
- // Note 2: curve adaptors need to have only Value(double), FirstParameter() and
- // LastParameter() defined to be used by Block algoritms
-
- class SMESH_EXPORT TEdge {
- int myCoordInd;
- double myFirst;
- double myLast;
- Adaptor3d_Curve* myC3d;
- // if mesh volume
- gp_XYZ myNodes[2];
- public:
- void Set( const int edgeID, Adaptor3d_Curve* curve, const bool isForward );
- void Set( const int edgeID, const gp_XYZ& node1, const gp_XYZ& node2 );
- Adaptor3d_Curve* GetCurve() const { return myC3d; }
- double EndParam(int i) const { return i ? myLast : myFirst; }
- int CoordInd() const { return myCoordInd; }
- const gp_XYZ& NodeXYZ(int i) const { return i ? myNodes[1] : myNodes[0]; }
- gp_XYZ Point( const gp_XYZ& theParams ) const; // Return coord by params
- double GetU( const gp_XYZ& theParams ) const; // Return U by params
- TEdge(): myC3d(0) {}
- ~TEdge();
- };
-
- class SMESH_EXPORT TFace {
- // 4 edges in the order u0, u1, 0v, 1v
- int myCoordInd[ 4 ];
- double myFirst [ 4 ];
- double myLast [ 4 ];
- Adaptor2d_Curve2d* myC2d [ 4 ];
- // 4 corner points in the order 00, 10, 11, 01
- gp_XY myCorner [ 4 ];
- // surface
- Adaptor3d_Surface* myS;
- // if mesh volume
- gp_XYZ myNodes[4];
- public:
- void Set( const int faceID, Adaptor3d_Surface* S, // must be in GetFaceEdgesIDs() order:
- Adaptor2d_Curve2d* c2d[4], const bool isForward[4] );
- void Set( const int faceID, const TEdge& edgeU0, const TEdge& edgeU1 );
- gp_XY GetUV( const gp_XYZ& theParams ) const;
- gp_XYZ Point( const gp_XYZ& theParams ) const;
- int GetUInd() const { return myCoordInd[ 0 ]; }
- int GetVInd() const { return myCoordInd[ 2 ]; }
- void GetCoefs( int i, const gp_XYZ& theParams, double& eCoef, double& vCoef ) const;
- TFace(): myS(0) { myC2d[0]=myC2d[1]=myC2d[2]=myC2d[3]=0; }
- ~TFace();
- };
-
- // geometry in the order as in TShapeID:
- // 8 vertices
- gp_XYZ myPnt[ 8 ];
- // 12 edges
- TEdge myEdge[ 12 ];
- // 6 faces
- TFace myFace[ 6 ];
-
- // for param computation
-
- enum { SQUARE_DIST = 0, DRV_1, DRV_2, DRV_3 };
- double distance () const { return sqrt( myValues[ SQUARE_DIST ]); }
- double funcValue(double sqDist) const { return mySquareFunc ? sqDist : sqrt(sqDist); }
- bool computeParameters(const gp_Pnt& thePoint, gp_XYZ& theParams, const gp_XYZ& theParamsHint);
-
- int myFaceIndex;
- double myFaceParam;
- int myNbIterations;
- double mySumDist;
- double myTolerance;
- bool mySquareFunc;
-
- gp_XYZ myPoint; // the given point
- gp_XYZ myParam; // the best parameters guess
- double myValues[ 4 ]; // values computed at myParam: square distance and 3 derivatives
-
- typedef std::pair<gp_XYZ,gp_XYZ> TxyzPair;
- TxyzPair my3x3x3GridNodes[ 27 ]; // to compute the first param guess
- bool myGridComputed;
-};
-
-
-#endif
