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void Blend_CSWalking::InternalPerform(Blend_CSFunction& Func,
// Blend_CSFuncInv& FuncInv,
math_Vector& sol,
const Standard_Real Bound)
{
Standard_Real stepw = pasmax;
Standard_Real parprec = param;
Blend_Status State;
TopAbs_State situ;
Standard_Real w,U,V;
Standard_Integer nbarc;
#ifndef DEB
Standard_Integer Index = 0;
Standard_Boolean Isvtx = Standard_False;
#else
Standard_Integer Index;
Standard_Boolean Isvtx;
#endif
Standard_Integer Nbvar = Func.NbVariables();
Standard_Boolean Arrive,recad,echecrecad;
gp_Pnt2d p2d;
// math_Vector tolerance(1,3),infbound(1,3),supbound(1,3),parinit(1,3);
// math_Vector solrst(1,3);
math_Vector tolerance(1,Nbvar),infbound(1,Nbvar),supbound(1,Nbvar),
parinit(1,Nbvar);
math_Vector solrst(1,Nbvar);
TheVertex Vtx;
TheExtremity Exts,Extc;
//IntSurf_Transition Tline,Tarc;
Func.GetTolerance(tolerance,tolesp);
Func.GetBounds(infbound,supbound);
math_FunctionSetRoot rsnld(Func,tolerance,30);
parinit = sol;
param = parprec + sens*stepw;
Arrive = (sens *(param - Bound) > 0.) ;
// if (Arrive) {
// line->Clear();
// }
while (!Arrive) {
Func.Set(param);
rsnld.Perform(Func,parinit,infbound,supbound);
if (!rsnld.IsDone()) {
State = Blend_StepTooLarge;
}
else {
rsnld.Root(sol);
// situ1 = TheTopolTool::Classify(surf1,gp_Pnt2d(sol(1),sol(2)),
// Max(tolerance(1),tolerance(2)));
// situ2 = TheTopolTool::Classify(surf2,gp_Pnt2d(sol(3),sol(4)),
// Max(tolerance(3),tolerance(4)));
/*
situ = domain->Classify(gp_Pnt2d(sol(1),sol(2)),
Min(tolerance(1),tolerance(2)));
*/
situ = domain->Classify(Func.Pnt2d(),
Min(tolerance(1),tolerance(2)));
w = Bound;
recad = Standard_False;
echecrecad = Standard_False;
if (situ == TopAbs_OUT || situ == TopAbs_ON) {
// pb inverse sur surf
// recad = Recadre(FuncInv,sol,solrst,Index,Isvtx,Vtx);
Isvtx = Standard_False; // en attendant Recadre
if (recad) {
w = solrst(2);
}
else {
echecrecad = Standard_True;
}
}
if (!echecrecad) {
if (recad) {
// sol sur surf
State = Blend_OnRst1;
param = w;
domain->Init();
nbarc = 1;
while (nbarc < Index) {
nbarc++;
domain->Next();
}
p2d = TheArcTool::Value(domain->Value(),solrst(1));
sol(1) = p2d.X();
sol(2) = p2d.Y();
sol(3) = solrst(3);
Func.Set(param);
}
else {
State = Blend_OK;
}
State = TestArret(Func,sol,Standard_True,State);
}
else {
// Echec recadrage. On sort avec PointsConfondus
State = Blend_SamePoints;
}
}
switch (State) {
case Blend_OK :
{
#ifdef DEB
if (Blend_GettraceDRAWSECT()){
Drawsect(surf,curv,param,Func);
}
#endif
// Mettre a jour la ligne.
if (sens>0.) {
line->Append(previousP);
}
else {
line->Prepend(previousP);
}
parinit = sol;
parprec = param;
if (param == Bound) {
Arrive = Standard_True;
/*
Exts.SetValue(previousP.PointOnS(),sol(1),sol(2),tolesp);
Extc.SetValue(previousP.PointOnC(),sol(3),tolesp);
*/
previousP.ParametersOnS(U,V);
Exts.SetValue(previousP.PointOnS(),U,V,
previousP.Parameter(),tolesp);
Extc.SetValue(previousP.PointOnC(),previousP.ParameterOnC(),
previousP.Parameter(),tolesp);
// Indiquer que fin sur Bound.
}
else {
param = param + sens*stepw;
if (sens*(param - Bound) > - tolgui) {
param = Bound;
}
}
}
break;
case Blend_StepTooLarge :
{
stepw = stepw/2.;
if (Abs(stepw) < tolgui) {
/*
Exts.SetValue(previousP.PointOnS(),sol(1),sol(2),tolesp);
Extc.SetValue(previousP.PointOnC(),sol(3),sol(4),tolesp);
*/
previousP.ParametersOnS(U,V);
Exts.SetValue(previousP.PointOnS(),U,V,
previousP.Parameter(),tolesp);
Extc.SetValue(previousP.PointOnC(),previousP.ParameterOnC(),
previousP.Parameter(),tolesp);
Arrive = Standard_True;
if (line->NbPoints()>=2) {
// Indiquer qu on s arrete en cours de cheminement
}
// else {
// line->Clear();
// }
}
else {
param = parprec + sens*stepw; // on ne risque pas de depasser Bound.
}
}
break;
case Blend_StepTooSmall :
{
#ifdef DEB
if (Blend_GettraceDRAWSECT()){
Drawsect(surf,curv,param,Func);
}
#endif
// Mettre a jour la ligne.
if (sens>0.) {
line->Append(previousP);
}
else {
line->Prepend(previousP);
}
parinit = sol;
parprec = param;
stepw = Min(1.5*stepw,pasmax);
if (param == Bound) {
Arrive = Standard_True;
/*
Exts.SetValue(previousP.PointOnS(),sol(1),sol(2),tolesp);
Extc.SetValue(previousP.PointOnC(),sol(3),tolesp);
*/
previousP.ParametersOnS(U,V);
Exts.SetValue(previousP.PointOnS(),U,V,
previousP.Parameter(),tolesp);
Extc.SetValue(previousP.PointOnC(),previousP.ParameterOnC(),
previousP.Parameter(),tolesp);
// Indiquer que fin sur Bound.
}
else {
param = param + sens*stepw;
if (sens*(param - Bound) > - tolgui) {
param = Bound;
}
}
}
break;
case Blend_OnRst1 :
{
#ifdef DEB
if (Blend_GettraceDRAWSECT()){
Drawsect(surf,curv,param,Func);
}
#endif
if (sens>0.) {
line->Append(previousP);
}
else {
line->Prepend(previousP);
}
MakeExtremity(Exts,Index,solrst(1),Isvtx,Vtx);
// Extc.SetValue(previousP.PointOnC(),sol(3),tolesp);
Extc.SetValue(previousP.PointOnC(),previousP.ParameterOnC(),
previousP.Parameter(),tolesp);
Arrive = Standard_True;
}
break;
case Blend_SamePoints :
{
// On arrete
cout << " Points confondus dans le cheminement" << endl;
/*
Exts.SetValue(previousP.PointOnS(),sol(1),sol(2),tolesp);
Extc.SetValue(previousP.PointOnC(),sol(3),tolesp);
*/
previousP.ParametersOnS(U,V);
Exts.SetValue(previousP.PointOnS(),U,V,
previousP.Parameter(),tolesp);
Extc.SetValue(previousP.PointOnC(),previousP.ParameterOnC(),
previousP.Parameter(),tolesp);
Arrive = Standard_True;
}
break;
#ifndef DEB
default:
break;
#endif
}
if (Arrive) {
if (sens > 0.) {
line->SetEndPoints(Exts,Extc);
}
else {
line->SetStartPoints(Exts,Extc);
}
}
}
}
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