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occt/src/ChFiKPart/ChFiKPart_ComputeData_ChPlnCyl.cxx
bugmaster 81bba7173e Replacing french comments by english one
2012-03-05 19:28:25 +04:00

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// File: ChFiKPart_ComputeData_ChPlnCyl.cxx
// Created: Fri May 19 14:57:07 1995
// Author: Flore Lantheaume
// <fla@phylox>
#include <ChFiKPart_ComputeData.jxx>
#include <Precision.hxx>
#include <gp.hxx>
#include <gp_Ax22d.hxx>
#include <gp_Pnt2d.hxx>
#include <gp_Dir2d.hxx>
#include <gp_Circ2d.hxx>
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include <gp_Vec.hxx>
#include <gp_Circ.hxx>
#include <gp_Ax2.hxx>
#include <gp_Ax3.hxx>
#include <gp_Lin2d.hxx>
#include <ElCLib.hxx>
#include <ElSLib.hxx>
#include <Geom_ConicalSurface.hxx>
#include <Geom2d_Line.hxx>
#include <Geom_Line.hxx>
#include <Geom2d_Circle.hxx>
#include <Geom_Circle.hxx>
#include <Geom_Plane.hxx>
#include <IntAna_QuadQuadGeo.hxx>
#include <ChFiKPart_ComputeData_Fcts.hxx>
//pour tester
#include <Geom_CylindricalSurface.hxx>
//=======================================================================
//function : MakeChamfer
//purpose : Compute the chamfer in the particular case Plane/Cylinder
// or Cylinder/Plane
// Compute the SurfData <Data> of the chamfer build on the <Spine>
// between the plane <Pln> and the cylinder <Cyl>, with the
// distances <Dis1> on <Pln> and <Dis2> on <Cyl>.
// <Or1> and <Or2> are the orientations of <Pln> and <Cyl>
// and <Ofpl> this of the face carried by <Pln>.
// <First> is the start point on the <Spine>
// <Plandab> is equal to True if the plane is the surface S1
// <fu> and <lu> are the first and last u parameters of the
// cylinder
//out : True if the chanfer has been computed
// False else
//=======================================================================
Standard_Boolean ChFiKPart_MakeChamfer(TopOpeBRepDS_DataStructure& DStr,
const Handle(ChFiDS_SurfData)& Data,
const gp_Pln& Pln,
const gp_Cylinder& Cyl,
const Standard_Real fu,
const Standard_Real lu,
const TopAbs_Orientation Or1,
const TopAbs_Orientation Or2,
const Standard_Real Dis1,
const Standard_Real Dis2,
const gp_Circ& Spine,
const Standard_Real First,
const TopAbs_Orientation Ofpl,
const Standard_Boolean plandab)
{
// compute the chamfer surface(cone)
// compute the normals to the plane surface & to the plane face
gp_Ax3 PosPl = Pln.Position();
gp_Dir Dpl = PosPl.XDirection().Crossed(PosPl.YDirection());
gp_Dir norf = Dpl;
if ( Ofpl == TopAbs_REVERSED) norf.Reverse();
if (Or1 == TopAbs_REVERSED) Dpl.Reverse();
// compute the origin Or of the cone
gp_Pnt Or = Cyl.Location();
Standard_Real u,v;
ElSLib::PlaneParameters(PosPl,Or,u,v);
gp_Pnt2d pt2dPln(u,v);
ElSLib::PlaneD0(u,v,PosPl,Or);
gp_Pnt PtPl = Or; // projection of the cylinder origin
//on the plane
gp_Pnt PtSp;//start 3d point on the Spine
gp_Vec DSp; //tangent vector to the spine on PtSp
ElCLib::D1(First,Spine,PtSp,DSp);
gp_Dir Dx(gp_Vec(Or,PtSp));
gp_Dir Dy(DSp);
ElSLib::Parameters(Cyl,PtSp,u,v);
gp_Pnt PtCyl;//point on the cylinder and on the Spine
gp_Vec Vu,Vv;
ElSLib::D1(u,v,Cyl,PtCyl,Vu,Vv);
gp_Dir Dcyl(Vu.Crossed(Vv));//normal to the cylinder in PtSp
if (Or2 == TopAbs_REVERSED) Dcyl.Reverse();
Standard_Boolean dedans = ( Dcyl.Dot(Dx) <= 0.);
Standard_Boolean pointu = Standard_False;
Standard_Real ConRad, Rad, SemiAngl ;
Or.SetCoord(Or.X()+Dis2*Dpl.X(),
Or.Y()+Dis2*Dpl.Y(),
Or.Z()+Dis2*Dpl.Z());
// variables used to compute the semiangle of the cone
gp_Dir Vec1(Or.X()-PtPl.X(), Or.Y()-PtPl.Y(), Or.Z()-PtPl.Z());
gp_Pnt Pt(Or.X()+Dis1*PosPl.XDirection().X(),
Or.Y()+Dis1*PosPl.XDirection().Y(),
Or.Z()+Dis1*PosPl.XDirection().Z());
gp_Dir Vec2( Pt.X()-PtPl.X(), Pt.Y()-PtPl.Y(), Pt.Z()-PtPl.Z());
// compute the parameters of the conical surface
if (dedans) {
Rad = Cyl.Radius()- Dis1;
if ( Abs(Rad) <= Precision::Confusion() ) pointu = Standard_True;
if(Rad < 0 ) {
cout<<"the chamfer can't pass"<<endl;
return Standard_False;
}
}
else {
Rad = Cyl.Radius()+Dis1;
gp_Dir Dplr = Dpl.Reversed();
Dpl = Dplr;
}
ConRad = Cyl.Radius();
SemiAngl = Vec1.Angle(Vec2);
gp_Ax3 ConAx3(Or,Dpl,Dx);
Handle (Geom_ConicalSurface)
gcon = new Geom_ConicalSurface( ConAx3, SemiAngl, ConRad );
// changes due to the fact the parameters of the chamfer must go increasing
// from surface S1 to surface S2
if ( (dedans && !plandab) || (!dedans && plandab) ) {
gcon->VReverse();// be carefull : the SemiAngle was changed
ConAx3 = gcon->Position();
SemiAngl = gcon->SemiAngle();
}
// changes due to the fact we have reversed the V direction of
// parametrization
if (ConAx3.YDirection().Dot(DSp) <= 0.) {
ConAx3.YReverse();
gcon->SetPosition(ConAx3);
}
Data->ChangeSurf(ChFiKPart_IndexSurfaceInDS(gcon,DStr));
// compute the chamfer's orientation according to the orientation
// of the faces
//search the normal to the cone
gp_Vec deru, derv;
ElSLib::ConeD1(0.,0.,ConAx3,ConRad,SemiAngl,Pt,deru,derv);
gp_Dir norCon(deru.Crossed(derv));
Standard_Boolean toreverse = ( norCon.Dot(norf) <= 0.);
if (toreverse) {
Data->ChangeOrientation() = TopAbs_REVERSED;
}
else {
Data->ChangeOrientation() = TopAbs_FORWARD;
}
//we load of the faceInterference with the pcurves and
// the 3d curves
// Case of the plane face
// NB: in the case 'pointu', no pcurve on the plane surface
// and no intersection plane-chamfer are needed
Handle(Geom2d_Circle) GCir2dPln;
Handle(Geom_Circle) GCirPln;
gp_Ax2 CirAx2 = ConAx3.Ax2();
CirAx2.SetLocation(PtPl);
if (!pointu) {
// intersection plane-chamfer
gp_Circ CirPln(CirAx2,Rad);
GCirPln = new Geom_Circle(CirPln);
//pcurve on the plane
ElSLib::PlaneParameters(PosPl,Pt ,u,v);
gp_Pnt2d p2dPln(u,v);
gp_Dir2d d2d(DSp.Dot(PosPl.XDirection()),DSp.Dot(PosPl.YDirection()));
gp_Ax22d ax2dPln(pt2dPln, gp_Dir2d(gp_Vec2d(pt2dPln,p2dPln)),d2d);
gp_Circ2d cir2dPln(ax2dPln,Rad);
GCir2dPln = new Geom2d_Circle(cir2dPln);
}
//pcurve on the chamfer
gp_Pnt2d p2dch;
if (plandab)
v= -sqrt(Dis1*Dis1+Dis2*Dis2);
else
v = sqrt(Dis1*Dis1+Dis2*Dis2);
p2dch.SetCoord(0.,v);
ElSLib::ConeD1(0.,v,ConAx3,ConRad,SemiAngl,Pt,deru,derv);
gp_Lin2d lin2dch(p2dch,gp::DX2d());
Handle(Geom2d_Line) GLin2dCh1 = new Geom2d_Line(lin2dch);
//orientation
TopAbs_Orientation trans;
gp_Dir norpl = PosPl.XDirection().Crossed(PosPl.YDirection());
toreverse = ( norCon.Dot(norpl) <= 0. );
if ((toreverse && plandab) || (!toreverse && !plandab)){
trans = TopAbs_FORWARD;
}
else {
trans = TopAbs_REVERSED;
}
if(plandab){
Data->ChangeInterferenceOnS1().
SetInterference(ChFiKPart_IndexCurveInDS(GCirPln,DStr),
trans,GCir2dPln,GLin2dCh1);
}
else{
Data->ChangeInterferenceOnS2().
SetInterference(ChFiKPart_IndexCurveInDS(GCirPln,DStr),
trans,GCir2dPln,GLin2dCh1);
}
// Case of the cylindrical face
//intersection cylinder-chamfer
CirAx2.SetLocation(Or);
gp_Circ CirCyl(CirAx2,ConRad);
Handle(Geom_Circle) GCirCyl = new Geom_Circle(CirCyl);
//pcurve on the chamfer
p2dch.SetCoord(0.,0.);
ElSLib::ConeD1(0.,0.,ConAx3,ConRad,SemiAngl,Pt,deru,derv);
lin2dch.SetLocation(p2dch);
Handle(Geom2d_Line) GLin2dCh2 = new Geom2d_Line(lin2dch);
//pcurve on the cylinder
norCon.SetXYZ (deru.Crossed(derv).XYZ());
Pt.SetCoord(Or.X()+ConRad*Dx.X(),
Or.Y()+ConRad*Dx.Y(),
Or.Z()+ConRad*Dx.Z());
ElSLib::Parameters(Cyl,Pt ,u,v);
Standard_Real tol = Precision::PConfusion();
Standard_Boolean careaboutsens = 0;
if(Abs(lu - fu - 2*PI) < tol) careaboutsens = 1;
if(u >= fu - tol && u < fu) u = fu;
if(u <= lu + tol && u > lu) u = lu;
if(u < fu || u > lu) u = ChFiKPart_InPeriod(u,fu,fu + 2*PI,tol);
ElSLib::D1(u,v,Cyl,Pt,deru,derv);
gp_Dir norcyl = deru.Crossed(derv);
gp_Dir2d d2dCyl = gp::DX2d();
if( deru.Dot(Dy) < 0. ){
d2dCyl.Reverse();
if(careaboutsens && Abs(fu-u)<tol) u = lu;
}
else if(careaboutsens && Abs(lu-u)<tol) u = fu;
gp_Pnt2d p2dCyl(u,v);
gp_Lin2d lin2dCyl(p2dCyl,d2dCyl);
Handle(Geom2d_Line) GLin2dCyl = new Geom2d_Line(lin2dCyl);
//orientation
toreverse = ( norCon.Dot(norcyl) <= 0. );
if ((toreverse && plandab) || (!toreverse && !plandab) ) {
trans = TopAbs_REVERSED;
}
else {
trans = TopAbs_FORWARD;
}
if(plandab){
Data->ChangeInterferenceOnS2().
SetInterference(ChFiKPart_IndexCurveInDS(GCirCyl,DStr),
trans,GLin2dCyl,GLin2dCh2);
}
else{
Data->ChangeInterferenceOnS1().
SetInterference(ChFiKPart_IndexCurveInDS(GCirCyl,DStr),
trans,GLin2dCyl,GLin2dCh2);
}
return Standard_True;
}
// File: ChFiKPart_ComputeData_ChPlnCyl.cxx
// Created: Fri May 10 09:43:15 1996
// Author: Stagiaire Xuan Trang PHAMPHU
// <xpu@phylox>
//=======================================================================
//function : MakeChamfer
//purpose : case cylinder/plane or plane/cylinder.
//=======================================================================
Standard_Boolean ChFiKPart_MakeChamfer(TopOpeBRepDS_DataStructure& DStr,
const Handle(ChFiDS_SurfData)& Data,
const gp_Pln& Pln,
const gp_Cylinder& Cyl,
const Standard_Real fu,
const Standard_Real lu,
const TopAbs_Orientation Or1,
const TopAbs_Orientation Or2,
const Standard_Real Dis1,
const Standard_Real Dis2,
const gp_Lin& Spine,
const Standard_Real First,
const TopAbs_Orientation Ofpl,
const Standard_Boolean plandab)
{
// calculation of the fillet plane.
// or1 and or2 permit to determine in which of four sides created by
// intersection of 2 surfaces we are
// _|_ Ofpl is orientation of the plane face allowing
// |4 to determine the side of the material
Standard_Real dis1=Dis1, dis2=Dis2;
if (!plandab){
dis1 = Dis2;
dis2 = Dis1;}
gp_Pnt OrSpine = ElCLib::Value(First,Spine);
gp_Pnt POnCyl, POnPln, OrCyl;
gp_Dir XDir = Spine.Direction();
gp_Ax3 AxPln = Pln.Position();
gp_Dir NorPln = AxPln.XDirection().Crossed(AxPln.YDirection());
gp_Dir NorF(NorPln);
if (Or1 == TopAbs_REVERSED)
{NorF.Reverse();}
gp_Ax3 AxCyl = Cyl.Position();
// OrCyl is the point on axis of cylinder in the plane normal to the
// axis containing OrSpine
gp_Pnt Loc = AxCyl.Location();
gp_Vec LocSp(Loc, OrSpine);
gp_XYZ temp = AxCyl.Direction().XYZ();
temp = temp.Multiplied(LocSp.XYZ().Multiplied(temp) );
OrCyl.SetXYZ( (Loc.XYZ()).Added(temp) );
// gp_XYZ temp = AxCyl.Direction().XYZ();
// temp = temp.Multiplied( OrSpine.XYZ().Multiplied(temp) );
// OrCyl.SetXYZ( (AxCyl.Location().XYZ()).Added(temp) );
//construction of POnPln
gp_Vec VecTranslPln,tmp;
tmp = gp_Vec(OrSpine,OrCyl);
if ((Or2 == TopAbs_FORWARD && Cyl.Direct()) ||
(Or2 == TopAbs_REVERSED && !Cyl.Direct()))
{tmp.Reverse();}
VecTranslPln = gp_Vec( XDir.Crossed(NorPln) );
if( VecTranslPln.Dot(tmp) <= 0. )
{VecTranslPln.Reverse();}
VecTranslPln.Multiply(dis1);
POnPln.SetXYZ( (OrSpine.XYZ()).Added(VecTranslPln.XYZ()) );
//construction of POnCyl
Standard_Real alpha = ( 2*ASin(dis2*0.5/Cyl.Radius()) );
// gp_Vec VecTranslCyl;
// VecTranslCyl = gp_Vec(OrSpine,OrCyl);
// if ( ( XDir.Crossed(gp_Dir(VecTranslCyl)) ).Dot(NorF) <=0. )
// {VecTranslCyl.Rotate(gp_Ax1(OrSpine,XDir),alpha);}
// else
// {VecTranslCyl.Rotate(gp_Ax1(OrSpine,XDir.Reversed()),alpha);}
// POnCyl.SetXYZ( OrCyl.XYZ().Added(VecTranslCyl.XYZ()) );
gp_Vec VecCylTransl = gp_Vec(OrCyl,OrSpine);
if ( ( XDir.Crossed(gp_Dir(VecCylTransl)) ).Dot(NorF) > 0.) {
VecCylTransl.Rotate(gp_Ax1(OrCyl,XDir),alpha);
}
else {
VecCylTransl.Rotate(gp_Ax1(OrCyl,XDir.Reversed()),alpha);}
POnCyl.SetXYZ( OrCyl.XYZ().Added(VecCylTransl.XYZ()) );
//construction of chamfer
Standard_Real UOnCyl,VOnCyl,UOnPln,VOnPln;
ElSLib::Parameters(Cyl,POnCyl,UOnCyl,VOnCyl);
POnCyl = ElSLib::CylinderValue(UOnCyl,VOnCyl,AxCyl,Cyl.Radius());
ElSLib::Parameters(Pln,POnPln,UOnPln,VOnPln);
POnPln = ElSLib::PlaneValue(UOnPln,VOnPln,AxPln);
//construction of YDir to go to face1 from face2.
gp_Vec YDir(POnPln,POnCyl);
if (!plandab){
YDir.Reverse();
}
gp_Ax3 AxCh(POnPln,XDir.Crossed(YDir),XDir);
Handle(Geom_Plane) Chamfer = new Geom_Plane(AxCh);
Data->ChangeSurf(ChFiKPart_IndexSurfaceInDS(Chamfer,DStr));
// FaceInterferences are loaded with pcurves and curves 3d.
//----------- edge plane-Chamfer
gp_Pnt2d PPln2d(UOnPln,VOnPln);
gp_Dir2d VPln2d(XDir.Dot(AxPln.XDirection()),
XDir.Dot(AxPln.YDirection()));
gp_Lin2d Lin2dPln(PPln2d,VPln2d);
POnPln = ElSLib::Value(UOnPln,VOnPln,Pln);
gp_Lin C3d(POnPln,XDir);
Standard_Real U,VOnChamfer;
ElSLib::PlaneParameters(AxCh,POnPln,U,VOnChamfer);
gp_Lin2d LOnChamfer(gp_Pnt2d(U,VOnChamfer),gp::DX2d());
Handle(Geom_Line) L3d = new Geom_Line (C3d);
Handle(Geom2d_Line) LFac = new Geom2d_Line(Lin2dPln);
Handle(Geom2d_Line) LFil = new Geom2d_Line(LOnChamfer);
gp_Dir NorFil=AxCh.Direction();
Standard_Boolean toreverse = ( NorFil.Dot(NorPln) <= 0. );
gp_Dir DirPlnCyl(gp_Vec(POnPln, POnCyl));
gp_Dir DirSPln(gp_Vec(OrSpine, POnPln));
Standard_Boolean PosChamfPln = DirPlnCyl.Dot(DirSPln) > 0;
if (PosChamfPln )
toreverse = !toreverse;
// It is checked if the orientation of the Chamfer is the same as of the plane
if (toreverse)
{Data->ChangeOrientation() = TopAbs::Reverse(Ofpl);}
else
{Data->ChangeOrientation() = Ofpl;}
TopAbs_Orientation trans = TopAbs_FORWARD;
if ((!plandab && toreverse) || (plandab && !toreverse))
{trans=TopAbs_REVERSED;}
//trans permits to determine the "material" side on S1(2) limited by L3d
if (plandab)
{Data->ChangeInterferenceOnS1().
SetInterference(ChFiKPart_IndexCurveInDS(L3d,DStr),trans,LFac,LFil);}
else
{Data->ChangeInterferenceOnS2().
SetInterference(ChFiKPart_IndexCurveInDS(L3d,DStr),trans,LFac,LFil);}
//------------edge cylinder-Chamfer
gp_Pnt2d PCyl2d(UOnCyl,VOnCyl);
gp_Dir2d VCyl2d=gp::DY2d();
if ( XDir.Dot(AxCyl.Direction())<0 )
{VCyl2d.Reverse();}
gp_Lin2d Lin2dCyl(PCyl2d,VCyl2d);
POnCyl = ElSLib::Value(UOnCyl,VOnCyl,Cyl);
C3d = gp_Lin(POnCyl,XDir);
ElSLib::PlaneParameters(AxCh,POnCyl,U,VOnChamfer);
LOnChamfer = gp_Lin2d(gp_Pnt2d(U,VOnChamfer),gp::DX2d());
L3d = new Geom_Line (C3d);
LFac = new Geom2d_Line(Lin2dCyl);
LFil = new Geom2d_Line(LOnChamfer);
gp_Vec deru,derv;
ElSLib::CylinderD1(UOnCyl,VOnCyl,AxCyl,Cyl.Radius(),POnCyl,deru,derv);
gp_Dir NorCyl(deru.Crossed(derv));
toreverse = ( NorFil.Dot(NorCyl) <= 0. );
gp_Dir DirSCyl(gp_Vec(OrSpine, POnCyl));
Standard_Boolean PosChamfCyl = DirPlnCyl.Dot(DirSCyl) < 0;
if (PosChamfCyl)
toreverse = !toreverse;
trans = TopAbs_REVERSED;
if ((!plandab && toreverse) || (plandab && !toreverse))
{trans=TopAbs_FORWARD;}
if (plandab)
Data->ChangeInterferenceOnS2().
SetInterference(ChFiKPart_IndexCurveInDS(L3d,DStr),trans,LFac,LFil);
else
Data->ChangeInterferenceOnS1().
SetInterference(ChFiKPart_IndexCurveInDS(L3d,DStr),trans,LFac,LFil);
return Standard_True;
}
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