geom/src/GEOMImpl/GEOMImpl_VectorDriver.cxx
2013-04-01 12:25:01 +00:00

202 lines
7.3 KiB
C++

// Copyright (C) 2007-2013 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
//
#include <Standard_Stream.hxx>
#include <GEOMImpl_VectorDriver.hxx>
#include <GEOMImpl_IVector.hxx>
#include <GEOMImpl_Types.hxx>
#include <GEOM_Function.hxx>
#include <BRep_Tool.hxx>
#include <BRepBuilderAPI_MakeEdge.hxx>
#include <TopAbs.hxx>
#include <TopExp.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx>
#include <gp_Pnt.hxx>
#include <Precision.hxx>
#include <Geom_Curve.hxx>
#include <gp_Vec.hxx>
#include <TCollection_AsciiString.hxx>
#include <Standard_ConstructionError.hxx>
//=======================================================================
//function : GetID
//purpose :
//=======================================================================
const Standard_GUID& GEOMImpl_VectorDriver::GetID()
{
static Standard_GUID aVectorDriver("FF1BBB04-5D14-4df2-980B-3A668264EA16");
return aVectorDriver;
}
//=======================================================================
//function : GEOMImpl_VectorDriver
//purpose :
//=======================================================================
GEOMImpl_VectorDriver::GEOMImpl_VectorDriver()
{
}
//=======================================================================
//function : Execute
//purpose :
//=======================================================================
Standard_Integer GEOMImpl_VectorDriver::Execute(TFunction_Logbook& log) const
{
if (Label().IsNull()) return 0;
Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
GEOMImpl_IVector aPI (aFunction);
Standard_Integer aType = aFunction->GetType();
if (aType != VECTOR_DX_DY_DZ && aType != VECTOR_TWO_PNT &&
aType != VECTOR_TANGENT_CURVE_PAR && aType != VECTOR_REVERSE) return 0;
TopoDS_Shape aShape;
if (aType == VECTOR_DX_DY_DZ) {
gp_Pnt P1 = gp::Origin();
gp_Pnt P2 (aPI.GetDX(), aPI.GetDY(), aPI.GetDZ());
if (P1.Distance(P2) < Precision::Confusion()) {
TCollection_AsciiString aMsg ("Can not build vector with length, less than ");
aMsg += TCollection_AsciiString(Precision::Confusion());
Standard_ConstructionError::Raise(aMsg.ToCString());
}
aShape = BRepBuilderAPI_MakeEdge(P1, P2).Shape();
}
else if (aType == VECTOR_TWO_PNT) {
Handle(GEOM_Function) aRefPnt1 = aPI.GetPoint1();
Handle(GEOM_Function) aRefPnt2 = aPI.GetPoint2();
TopoDS_Shape aShape1 = aRefPnt1->GetValue();
TopoDS_Shape aShape2 = aRefPnt2->GetValue();
if (aShape1.ShapeType() != TopAbs_VERTEX ||
aShape2.ShapeType() != TopAbs_VERTEX) return 0;
if (aShape1.IsSame(aShape2)) {
Standard_ConstructionError::Raise("The end points must be different");
}
TopoDS_Vertex V1 = TopoDS::Vertex(aShape1);
TopoDS_Vertex V2 = TopoDS::Vertex(aShape2);
gp_Pnt P1 = BRep_Tool::Pnt(V1);
gp_Pnt P2 = BRep_Tool::Pnt(V2);
if (P1.Distance(P2) < Precision::Confusion()) {
Standard_ConstructionError::Raise("The end points are too close");
}
aShape = BRepBuilderAPI_MakeEdge(V1, V2).Shape();
}
else if (aType == VECTOR_TANGENT_CURVE_PAR) {
Handle(GEOM_Function) aRefCurve = aPI.GetCurve();
TopoDS_Shape aRefShape = aRefCurve->GetValue();
if (aRefShape.ShapeType() != TopAbs_EDGE) {
Standard_TypeMismatch::Raise
("Tangent On Curve creation aborted : curve shape is not an edge");
}
Standard_Real aFParam =0., aLParam =0., aParam =0.;
Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aRefShape), aFParam, aLParam);
if(aCurve.IsNull()) {
Standard_TypeMismatch::Raise
("Tangent On Curve creation aborted : curve is null");
}
aParam = aFParam + (aLParam - aFParam) * aPI.GetParameter();
gp_Pnt aPoint1,aPoint2;
gp_Vec aVec;
aCurve->D1(aParam,aPoint1,aVec);
if(aVec.Magnitude() < gp::Resolution())
Standard_TypeMismatch::Raise
("Tangent On Curve creation aborted : invalid value of tangent");
aPoint2.SetXYZ(aPoint1.XYZ() + aVec.XYZ());
BRepBuilderAPI_MakeEdge aBuilder(aPoint1,aPoint2);
if(aBuilder.IsDone())
aShape = aBuilder.Shape();
}
else if (aType == VECTOR_REVERSE) {
Handle(GEOM_Function) aRefVec = aPI.GetCurve();
TopoDS_Shape aRefShape = aRefVec->GetValue();
if (aRefShape.ShapeType() != TopAbs_EDGE) {
Standard_TypeMismatch::Raise
("Reversed vector creation aborted : vector shape is not an edge");
}
TopoDS_Edge anE = TopoDS::Edge(aRefShape);
TopoDS_Vertex V1, V2;
TopExp::Vertices(anE, V1, V2, Standard_True);
aShape = BRepBuilderAPI_MakeEdge(V2, V1).Shape();
}
if (aShape.IsNull()) return 0;
aFunction->SetValue(aShape);
log.SetTouched(Label());
return 1;
}
//=======================================================================
//function : GEOMImpl_VectorDriver_Type_
//purpose :
//=======================================================================
Standard_EXPORT Handle_Standard_Type& GEOMImpl_VectorDriver_Type_()
{
static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_VectorDriver",
sizeof(GEOMImpl_VectorDriver),
1,
(Standard_Address)_Ancestors,
(Standard_Address)NULL);
return _aType;
}
//=======================================================================
//function : DownCast
//purpose :
//=======================================================================
const Handle(GEOMImpl_VectorDriver) Handle(GEOMImpl_VectorDriver)::DownCast
(const Handle(Standard_Transient)& AnObject)
{
Handle(GEOMImpl_VectorDriver) _anOtherObject;
if (!AnObject.IsNull()) {
if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_VectorDriver))) {
_anOtherObject = Handle(GEOMImpl_VectorDriver)((Handle(GEOMImpl_VectorDriver)&)AnObject);
}
}
return _anOtherObject;
}