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PAL10015. Add GEOMAlgo_FinderShapeOnQuad

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eap 2005-11-01 13:27:09 +00:00
parent 4bbe364fed
commit 70a26bb822
3 changed files with 204 additions and 0 deletions
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143
src/GEOMAlgo/GEOMAlgo_FinderShapeOnQuad.cxx Normal file
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// Copyright (C) 2003 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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
//
//
//
// File : GEOMAlgo_FinderShapeOnQuad.cxx
// Created : Mon Oct 17 17:31:45 2005
// Author : Edward AGAPOV (eap)
#include "GEOMAlgo_FinderShapeOnQuad.hxx"
#include "GEOMAlgo_SurfaceTools.hxx"
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#include <Geom_Plane.hxx>
GEOMAlgo_FinderShapeOnQuad::GEOMAlgo_FinderShapeOnQuad(const gp_Pnt & theTopLeftPoint,
const gp_Pnt & theTopRigthPoint,
const gp_Pnt & theBottomLeftPoint,
const gp_Pnt & theBottomRigthPoint)
{
myPoints.resize(6);
myPoints[0] = theTopLeftPoint ;
myPoints[1] = theTopRigthPoint ;
myPoints[2] = theBottomRigthPoint;
myPoints[3] = theBottomLeftPoint ;
myPoints[4] = myPoints[0];
myPoints[5] = myPoints[1];
// Find plane normal defined by corner points, it will be used to define a plane
// for each quadrangle side.
myQuadNormal.SetCoord (0,0,0);
for ( int i = 1; i <= 4; ++i )
myQuadNormal += gp_Vec( myPoints[i], myPoints[i+1] ) ^ gp_Vec( myPoints[i], myPoints[i-1] );
//std::cout<<std::endl<<" X Vec : "<<myQuadNormal.X()<<" "<<myQuadNormal.Y()<<" "<<myQuadNormal.Z()<<" "<<endl;
if ( myQuadNormal.SquareMagnitude() <= DBL_MIN ) {
myErrorStatus = 101;
return;
}
// detect concave quadrangle sides
myConcaveQuad = false;
myConcaveSide.resize (4, false);
for ( int i = 1; i <= 4; ++i ) {
gp_Vec localQN = gp_Vec( myPoints[i], myPoints[i+1] ) ^ gp_Vec( myPoints[i], myPoints[i-1] );
if ( myQuadNormal * localQN < 0 )
myConcaveSide[i-1] = myConcaveSide[i] = myConcaveQuad = true;
}
// loop on quadrangle sides
myPlanes.reserve( 4 );
for ( int i = 0; i < 4; ++i )
{
// point1 -> point2 vector
gp_Vec aSideVec( myPoints[ i ], myPoints[ i + 1 ]);
//std::cout<<" Y Vec : "<<aSideVec.X()<<" "<<aSideVec.Y()<<" "<<aSideVec.Z()<<" "<<endl;
// plane normal
gp_Vec aSideNorm = aSideVec ^ myQuadNormal;
if ( aSideNorm.SquareMagnitude() <= DBL_MIN )
continue;
//std::cout<<" Z Vec : "<<aSideNorm.X()<<" "<<aSideNorm.Y()<<" "<<aSideNorm.Z()<<" "<<endl;
// make plane
Handle(Geom_Plane) aPlane = new Geom_Plane( myPoints[ i ], aSideNorm );
myPlanes.push_back( GeomAdaptor_Surface() );
myPlanes.back().Load( aPlane );
}
}
//=======================================================================
//function : CheckData
//purpose :
//=======================================================================
void GEOMAlgo_FinderShapeOnQuad::CheckData()
{
if ( !myPlanes.empty() )
mySurface = myPlanes[0].Surface();
GEOMAlgo_FinderShapeOn1::CheckData();
}
//=======================================================================
//function : GetPointState
//purpose :
//=======================================================================
TopAbs_State GEOMAlgo_FinderShapeOnQuad::GetPointState(const gp_Pnt& aP)
{
// Return IN if aP has TopAbs_IN with all sides.
// In the case of concave quadrangle, return IN if
// aP is OUT of only one concave side
double nbIn = 0.;
for ( int i = 0; i < myPlanes.size(); ++i )
{
TopAbs_State aSt;
GEOMAlgo_SurfaceTools::GetState(aP, myPlanes[i], myTolerance, aSt);
if ( aSt == TopAbs_IN )
{
nbIn += myConcaveSide[i] ? 0.5 : 1.0;
}
else if ( aSt == TopAbs_ON )
{
// check that aP is between quadrangle corners
Handle(Geom_Plane) aSidePlane = Handle(Geom_Plane)::DownCast( myPlanes[i].Surface() );
gp_Vec aSideNorm = aSidePlane->Axis().Direction();
gp_Vec aSideVec = myQuadNormal ^ aSideNorm;
gp_Vec c1p ( myPoints[i], aP );
gp_Vec pc2 ( aP, myPoints[i+1] );
if ( aSideVec * c1p >= 0. && aSideVec * pc2 >= 0. )
return TopAbs_ON;
// consider to be IN (???????????)
//nbIn += myConcaveSide[i] ? 0.5 : 1.0;
}
}
Standard_Real inThreshold = myPlanes.size(); // usually 4.0
if ( myConcaveQuad )
inThreshold = 2.5; // 1.0 + 1.0 + 0.5
if ( nbIn >= inThreshold )
return TopAbs_IN;
return TopAbs_OUT;
}

59
src/GEOMAlgo/GEOMAlgo_FinderShapeOnQuad.hxx Normal file
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// Copyright (C) 2003 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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
//
//
//
// File : GEOMAlgo_FinderShapeOnQuad.hxx
// Created : Mon Oct 17 17:15:59 2005
// Author : Edward AGAPOV (eap)
#ifndef GEOMAlgo_FinderShapeOnQuad_HeaderFile
#define GEOMAlgo_FinderShapeOnQuad_HeaderFile
#include "GEOMAlgo_FinderShapeOn1.hxx"
#include <gp_Vec.hxx>
#include <vector>
class GEOMAlgo_FinderShapeOnQuad: public GEOMAlgo_FinderShapeOn1
{
public:
GEOMAlgo_FinderShapeOnQuad(const gp_Pnt & theTopLeftPoint,
const gp_Pnt & theTopRigthPoint,
const gp_Pnt & theBottomLeftPoint,
const gp_Pnt & theBottomRigthPoint);
protected:
virtual void CheckData() ;
virtual TopAbs_State GetPointState(const gp_Pnt& aP) ;
private:
bool myConcaveQuad;
vector<bool> myConcaveSide;
vector<gp_Pnt> myPoints;
vector<GeomAdaptor_Surface> myPlanes;
gp_Vec myQuadNormal;
};
#endif

2
src/GEOMAlgo/Makefile.in
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@ -49,6 +49,7 @@ LIB_SRC = \
GEOMAlgo_DataMapNodeOfDataMapOfPassKeyInteger_0.cxx \
GEOMAlgo_DataMapOfPassKeyInteger_0.cxx \
GEOMAlgo_FinderShapeOn1.cxx \
GEOMAlgo_FinderShapeOnQuad.cxx \
GEOMAlgo_GlueAnalyser.cxx \
GEOMAlgo_Gluer.cxx \
GEOMAlgo_IndexedDataMapNodeOfIndexedDataMapOfIntegerShape_0.cxx \
@ -87,6 +88,7 @@ EXPORT_HEADERS = \
GEOMAlgo_GlueAnalyser.hxx \
GEOMAlgo_Gluer.hxx \
GEOMAlgo_FinderShapeOn1.hxx \
GEOMAlgo_FinderShapeOnQuad.hxx \
GEOMAlgo_IndexedDataMapOfShapeState.hxx \
GEOMAlgo_ListIteratorOfListOfCoupleOfShapes.hxx \
GEOMAlgo_ListOfCoupleOfShapes.hxx \