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// File: Extrema_ExtSS.cxx
// Created: Wed Jul 19 09:00:22 1995
// Author: Modelistation
// <model@metrox>
#include <Extrema_ExtSS.ixx>
#include <StdFail_NotDone.hxx>
#include <Standard_NotImplemented.hxx>
#include <StdFail_InfiniteSolutions.hxx>
#include <Precision.hxx>
#include <GeomAbs_SurfaceType.hxx>
#include <gp_Pnt.hxx>
#include <gp_Pln.hxx>
#include <Extrema_GenExtSS.hxx>
#include <ElCLib.hxx>
Extrema_ExtSS::Extrema_ExtSS()
{
myDone = Standard_False;
}
Extrema_ExtSS::Extrema_ExtSS(const Adaptor3d_Surface& S1,
const Adaptor3d_Surface& S2,
const Standard_Real TolS1,
const Standard_Real TolS2)
{
Initialize(S2, S2.FirstUParameter(),
S2.LastUParameter(),
S2.FirstVParameter(),
S2.LastVParameter(), TolS2);
Perform(S1, S1.FirstUParameter(),
S1.LastUParameter(),
S1.FirstVParameter(),
S1.LastVParameter(), TolS1);
}
Extrema_ExtSS::Extrema_ExtSS(const Adaptor3d_Surface& S1,
const Adaptor3d_Surface& S2,
const Standard_Real Uinf1,
const Standard_Real Usup1,
const Standard_Real Vinf1,
const Standard_Real Vsup1,
const Standard_Real Uinf2,
const Standard_Real Usup2,
const Standard_Real Vinf2,
const Standard_Real Vsup2,
const Standard_Real TolS1,
const Standard_Real TolS2)
{
Initialize(S2, Uinf2, Usup2, Vinf2, Vsup2, TolS2);
Perform(S1, Uinf1, Usup1, Vinf1, Vsup1, TolS1);
}
void Extrema_ExtSS::Initialize(const Adaptor3d_Surface& S2,
const Standard_Real Uinf2,
const Standard_Real Usup2,
const Standard_Real Vinf2,
const Standard_Real Vsup2,
const Standard_Real TolS2)
{
myS2 = (Adaptor3d_SurfacePtr)&S2;
myIsPar = Standard_False;
myuinf2 = Uinf2;
myusup2 = Usup2;
myvinf2 = Vinf2;
myvsup2 = Vsup2;
mytolS2 = TolS2;
myStype = S2.GetType();
}
void Extrema_ExtSS::Perform(const Adaptor3d_Surface& S1,
const Standard_Real Uinf1,
const Standard_Real Usup1,
const Standard_Real Vinf1,
const Standard_Real Vsup1,
const Standard_Real TolS1)
{
myuinf1 = Uinf1;
myusup1 = Usup1;
myvinf1 = Vinf1;
myvsup1 = Vsup1;
mytolS1 = TolS1;
myPOnS1.Clear();
myPOnS2.Clear();
mySqDist.Clear();
Standard_Integer i;
GeomAbs_SurfaceType myS1type = S1.GetType();
Standard_Integer NbU = 10, NbV = 10;
switch(myS1type) {
case GeomAbs_Plane:
{
switch(myStype) {
case GeomAbs_Plane:
{
myExtElSS.Perform(S1.Plane(),myS2->Plane());
}
break;
default:
{
Extrema_GenExtSS Ext(S1, *myS2, NbU, NbV, mytolS1, mytolS2);
myDone = Ext.IsDone();
if (myDone) {
Standard_Integer NbExt = Ext.NbExt();
Standard_Real U1, V1,U2,V2;
Extrema_POnSurf PS1;
Extrema_POnSurf PS2;
for (i = 1; i <= NbExt; i++) {
PS1 = Ext.PointOnS1(i);
PS2 = Ext.PointOnS2(i);
PS1.Parameter(U1, V1);
PS2.Parameter(U2, V2);
if (S1.IsUPeriodic())
U1 = ElCLib::InPeriod(U1, myuinf1, myuinf1+S1.UPeriod());
if (S1.IsVPeriodic())
V1 = ElCLib::InPeriod(V1, myvinf1, myvinf1+S1.VPeriod());
if (myS2->IsUPeriodic())
U2 = ElCLib::InPeriod(U2, myuinf2, myuinf2+myS2->UPeriod());
if (myS2->IsVPeriodic())
V2 = ElCLib::InPeriod(V2, myvinf2, myvinf2+myS2->VPeriod());
if ((myuinf1-U1) <= mytolS1 && (U1-myusup1) <= mytolS1 &&
(myvinf1-V1) <= mytolS1 && (V1-myvsup1) <= mytolS1 &&
(myuinf2-U2) <= mytolS2 && (U2-myusup2) <= mytolS2 &&
(myvinf2-V2) <= mytolS2 && (V2-myvsup2) <= mytolS2) {
mySqDist.Append(Ext.SquareDistance(i));
myPOnS1.Append(Extrema_POnSurf(U1, V1, PS1.Value()));
myPOnS2.Append(Extrema_POnSurf(U2, V2, PS2.Value()));
}
}
}
return;
}
break;
}
break;
}
default:
{
Extrema_GenExtSS Ext(S1, *myS2, NbU, NbV, mytolS1, mytolS2);
myDone = Ext.IsDone();
if (myDone) {
Standard_Integer NbExt = Ext.NbExt();
Standard_Real U1, V1,U2,V2;
Extrema_POnSurf PS1;
Extrema_POnSurf PS2;
for (i = 1; i <= NbExt; i++) {
PS1 = Ext.PointOnS1(i);
PS2 = Ext.PointOnS2(i);
PS1.Parameter(U1, V1);
PS2.Parameter(U2, V2);
if (S1.IsUPeriodic())
U1 = ElCLib::InPeriod(U1, myuinf1, myuinf1+S1.UPeriod());
if (S1.IsVPeriodic())
V1 = ElCLib::InPeriod(V1, myvinf1, myvinf1+S1.VPeriod());
if (myS2->IsUPeriodic())
U2 = ElCLib::InPeriod(U2, myuinf2, myuinf2+myS2->UPeriod());
if (myS2->IsVPeriodic())
V2 = ElCLib::InPeriod(V2, myvinf2, myvinf2+myS2->VPeriod());
if ((myuinf1-U1) <= mytolS1 && (U1-myusup1) <= mytolS1 &&
(myvinf1-V1) <= mytolS1 && (V1-myvsup1) <= mytolS1 &&
(myuinf2-U2) <= mytolS2 && (U2-myusup2) <= mytolS2 &&
(myvinf2-V2) <= mytolS2 && (V2-myvsup2) <= mytolS2) {
mySqDist.Append(Ext.SquareDistance(i));
myPOnS1.Append(Extrema_POnSurf(U1, V1, PS1.Value()));
myPOnS2.Append(Extrema_POnSurf(U2, V2, PS2.Value()));
}
}
}
return;
}
break;
}
myDone = myExtElSS.IsDone();
if (myDone) {
myIsPar = myExtElSS.IsParallel();
if (myIsPar) {
mySqDist.Append(myExtElSS.SquareDistance(1));
}
else {
Standard_Integer NbExt = myExtElSS.NbExt();
Standard_Real U1, V1, U2, V2;
Extrema_POnSurf PS1;
Extrema_POnSurf PS2;
for (i = 1; i <= NbExt; i++) {
myExtElSS.Points(i, PS1, PS2);
PS1.Parameter(U1, V1);
PS2.Parameter(U2, V2);
if ((myuinf1-U1) <= mytolS1 && (U1-myusup1) <= mytolS1 &&
(myvinf1-V1) <= mytolS1 && (V1-myvsup1) <= mytolS1 &&
(myuinf2-U2) <= mytolS2 && (U2-myusup2) <= mytolS2 &&
(myvinf2-V2) <= mytolS2 && (V2-myvsup2) <= mytolS2) {
mySqDist.Append(myExtElSS.SquareDistance(i));
myPOnS1.Append(PS1);
myPOnS2.Append(PS2);
}
}
}
}
}
Standard_Boolean Extrema_ExtSS::IsDone() const
{
return myDone;
}
Standard_Boolean Extrema_ExtSS::IsParallel() const
{
return myIsPar;
}
Standard_Real Extrema_ExtSS::SquareDistance(const Standard_Integer N) const
{
if(!myDone) StdFail_NotDone::Raise();
if (myIsPar && N != 1) StdFail_InfiniteSolutions::Raise();
if ((N < 1) || (N > mySqDist.Length())) Standard_OutOfRange::Raise();
return mySqDist.Value(N);
}
Standard_Integer Extrema_ExtSS::NbExt() const
{
if(!myDone) StdFail_NotDone::Raise();
return mySqDist.Length();
}
void Extrema_ExtSS::Points(const Standard_Integer N,
Extrema_POnSurf& P1,
Extrema_POnSurf& P2) const
{
if(!myDone) StdFail_NotDone::Raise();
P1 = myPOnS1.Value(N);
P2 = myPOnS2.Value(N);
}
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