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#include <Approx_MCurvesToBSpCurve.ixx>
#include <Convert_CompBezierCurvesToBSplineCurve.hxx>
#include <Convert_CompBezierCurves2dToBSplineCurve2d.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColgp_Array1OfPnt2d.hxx>
#include <AppParCurves_MultiCurve.hxx>
#include <AppParCurves_MultiPoint.hxx>
#include <AppParCurves_Array1OfMultiPoint.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <BSplCLib.hxx>
#include <PLib.hxx>
#ifdef DEB
static void DEBUG(const AppParCurves_MultiCurve& MC) {
Standard_Integer i, j;
Standard_Integer nbcu = MC.NbCurves();
Standard_Integer nbpoles = MC.NbPoles();
TColgp_Array1OfPnt Poles(1, nbpoles);
TColgp_Array1OfPnt2d Poles2d(1, nbpoles);
for (i = 1; i <= nbcu; i++) {
cout << " Curve No. " << i << endl;
if (MC.Dimension(i) == 3) {
MC.Curve(i, Poles);
for (j = 1; j <= nbpoles; j++) {
cout<< " Pole = " << Poles(j).X() <<" "<<Poles(j).Y()<<" "<<Poles(j).Z()<< endl;
}
}
else {
MC.Curve(i, Poles2d);
for (j = 1; j <= nbpoles; j++) {
cout<< " Pole = " << Poles2d(j).X() <<" "<<Poles2d(j).Y()<< endl;
}
}
}
}
#endif
Approx_MCurvesToBSpCurve::Approx_MCurvesToBSpCurve()
{
myDone = Standard_False;
}
void Approx_MCurvesToBSpCurve::Reset()
{
myDone = Standard_False;
myCurves.Clear();
}
void Approx_MCurvesToBSpCurve::Append(const AppParCurves_MultiCurve& MC)
{
myCurves.Append(MC);
}
void Approx_MCurvesToBSpCurve::Perform()
{
Perform(myCurves);
}
void Approx_MCurvesToBSpCurve::Perform
(const AppParCurves_SequenceOfMultiCurve& TheSeq)
{
Standard_Integer i, j, deg=0;
Standard_Integer nbcu = TheSeq.Length();
AppParCurves_MultiCurve CU;
Standard_Integer nbpolesspl=0, nbknots=0;
#ifdef DEB
Standard_Boolean debug = Standard_False;
#endif
if (nbcu == 1) {
CU = TheSeq.Value(1);
deg = CU.Degree();
TColStd_Array1OfReal Knots(1, 2);
TColStd_Array1OfInteger Mults(1, 2);
Knots(1) = 0.0;
Knots(2) = 1.0;
Mults(1) = Mults(2) = deg+1;
mySpline = AppParCurves_MultiBSpCurve (CU, Knots, Mults);
}
else {
AppParCurves_MultiPoint P = TheSeq.Value(nbcu).Value(1);
Standard_Integer nb3d = P.NbPoints();
Standard_Integer nb2d = P.NbPoints2d();
Convert_CompBezierCurvesToBSplineCurve conv;
Convert_CompBezierCurves2dToBSplineCurve2d conv2d;
if (nb3d != 0) {
for (i = 1; i <= nbcu; i++) {
CU = TheSeq.Value(i);
TColgp_Array1OfPnt ThePoles3d(1, CU.NbPoles());
CU.Curve(1, ThePoles3d);
conv.AddCurve(ThePoles3d);
}
conv.Perform();
}
else if (nb2d != 0) {
for (i = 1; i <= nbcu; i++) {
CU = TheSeq.Value(i);
TColgp_Array1OfPnt2d ThePoles2d(1, CU.NbPoles());
CU.Curve(1+nb3d, ThePoles2d);
conv2d.AddCurve(ThePoles2d);
}
conv2d.Perform();
}
// Recuperation:
if (nb3d != 0) {
nbpolesspl = conv.NbPoles();
nbknots = conv.NbKnots();
}
else if (nb2d != 0) {
nbpolesspl = conv2d.NbPoles();
nbknots = conv2d.NbKnots();
}
AppParCurves_Array1OfMultiPoint tabMU(1, nbpolesspl);
TColgp_Array1OfPnt PolesSpl(1, nbpolesspl);
TColgp_Array1OfPnt2d PolesSpl2d(1, nbpolesspl);
TColStd_Array1OfInteger TheMults(1, nbknots);
TColStd_Array1OfReal TheKnots(1, nbknots);
if (nb3d != 0) {
conv.KnotsAndMults(TheKnots, TheMults);
conv.Poles(PolesSpl);
deg = conv.Degree();
}
else if (nb2d != 0) {
conv2d.KnotsAndMults(TheKnots, TheMults);
conv2d.Poles(PolesSpl2d);
deg = conv2d.Degree();
}
for (j = 1; j <= nbpolesspl; j++) {
AppParCurves_MultiPoint MP(nb3d, nb2d);
if (nb3d!=0) {
MP.SetPoint(1, PolesSpl(j));
}
else if (nb2d!=0) {
MP.SetPoint2d(1+nb3d, PolesSpl2d(j));
}
tabMU.SetValue(j, MP);
}
Standard_Integer kpol = 1, kpoles3d=1, kpoles2d=1;
Standard_Integer mydegre, k;
Standard_Integer first, last, Inc, thefirst;
if (nb3d != 0) thefirst = 1;
else thefirst = 2;
for (i = 1; i <= nbcu; i++) {
CU = TheSeq.Value(i);
mydegre = CU.Degree();
if (TheMults(i+1) == deg) last = deg+1; // Continuite C0
else last = deg; // Continuite C1
if (i==nbcu) {last = deg+1;}
first = 1;
if (i==1) first = 1;
else if ((TheMults(i)== deg-1) || (TheMults(i)==deg)) first = 2;
for (j = 2; j <= nb3d; j++) {
kpol = kpoles3d;
TColgp_Array1OfPnt ThePoles(1, CU.NbPoles());
CU.Curve(j, ThePoles);
Inc = deg-mydegre;
TColgp_Array1OfPnt Points(1, deg+1);
if (Inc > 0) {
BSplCLib::IncreaseDegree(deg, ThePoles, PLib::NoWeights(),
Points, PLib::NoWeights());
}
else {
Points = ThePoles;
}
for (k = first; k <= last; k++) {
tabMU.ChangeValue(kpol++).SetPoint(j, Points(k));
}
}
kpoles3d = kpol;
for (j = thefirst; j <= nb2d; j++) {
kpol = kpoles2d;
TColgp_Array1OfPnt2d ThePoles2d(1, CU.NbPoles());
CU.Curve(j+nb3d, ThePoles2d);
Inc = deg-mydegre;
TColgp_Array1OfPnt2d Points2d(1, deg+1);
if (Inc > 0) {
BSplCLib::IncreaseDegree(deg, ThePoles2d, PLib::NoWeights(),
Points2d, PLib::NoWeights());
}
else {
Points2d = ThePoles2d;
}
for (k = first; k <= last; k++) {
tabMU.ChangeValue(kpol++).SetPoint2d(j+nb3d, Points2d(k));
}
}
kpoles2d = kpol;
}
mySpline = AppParCurves_MultiBSpCurve(tabMU, TheKnots, TheMults);
}
#ifdef DEB
if(debug) DEBUG(mySpline);
#endif
myDone = Standard_True;
}
const AppParCurves_MultiBSpCurve& Approx_MCurvesToBSpCurve::Value() const
{
return mySpline;
}
const AppParCurves_MultiBSpCurve& Approx_MCurvesToBSpCurve::ChangeValue()
{
return mySpline;
}
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