//szv#4 S4163
//:s5 abv 22.04.99 Adding debug printouts in catch {} blocks
//#1 svv 11.01.00 Porting on DEC
-#include <ShapeConstruct_ProjectCurveOnSurface.ixx>
-#include <Standard_ErrorHandler.hxx>
-#include <Standard_Failure.hxx>
-
-#include <algorithm>
-
-#include <Precision.hxx>
-#include <TColStd_Array1OfInteger.hxx>
-#include <TColgp_Array1OfPnt.hxx>
-#include <NCollection_Sequence.hxx>
-
-#include <GeomAPI_PointsToBSpline.hxx>
-#include <Geom2dAPI_Interpolate.hxx>
-#include <GeomAPI_Interpolate.hxx>
-#include <Geom2dAdaptor.hxx>
-#include <Geom2d_Line.hxx>
+#include <Approx_CurveOnSurface.hxx>
+#include <Geom2d_BSplineCurve.hxx>
#include <Geom2d_Circle.hxx>
+#include <Geom2d_Curve.hxx>
#include <Geom2d_Ellipse.hxx>
#include <Geom2d_Hyperbola.hxx>
+#include <Geom2d_Line.hxx>
#include <Geom2d_Parabola.hxx>
#include <Geom2d_TrimmedCurve.hxx>
-#include <Geom2d_BSplineCurve.hxx>
+#include <Geom2dAdaptor.hxx>
+#include <Geom2dAPI_Interpolate.hxx>
+#include <Geom_BezierSurface.hxx>
+#include <Geom_BoundedCurve.hxx>
#include <Geom_BSplineCurve.hxx>
-#include <Geom_TrimmedCurve.hxx>
-#include <Geom_RectangularTrimmedSurface.hxx>
-#include <Geom_SurfaceOfLinearExtrusion.hxx>
-#include <Geom_SphericalSurface.hxx>
+#include <Geom_BSplineSurface.hxx>
+#include <Geom_Curve.hxx>
#include <Geom_OffsetSurface.hxx>
#include <Geom_Plane.hxx>
-#include <GeomProjLib.hxx>
-#include <GeomAdaptor_HSurface.hxx>
+#include <Geom_RectangularTrimmedSurface.hxx>
+#include <Geom_SphericalSurface.hxx>
+#include <Geom_Surface.hxx>
+#include <Geom_SurfaceOfLinearExtrusion.hxx>
+#include <Geom_TrimmedCurve.hxx>
#include <GeomAdaptor_HCurve.hxx>
-
+#include <GeomAdaptor_HSurface.hxx>
+#include <GeomAPI_Interpolate.hxx>
+#include <GeomAPI_PointsToBSpline.hxx>
+#include <GeomProjLib.hxx>
+#include <gp_Pnt2d.hxx>
+#include <ElCLib.hxx>
+#include <NCollection_Sequence.hxx>
+#include <Precision.hxx>
+#include <ProjLib_CompProjectedCurve.hxx>
+#include <ProjLib_HCompProjectedCurve.hxx>
+#include <ProjLib_ProjectedCurve.hxx>
+#include <ShapeAnalysis.hxx>
#include <ShapeAnalysis_Curve.hxx>
#include <ShapeAnalysis_Surface.hxx>
+#include <ShapeConstruct_ProjectCurveOnSurface.hxx>
#include <ShapeExtend.hxx>
+#include <Standard_ErrorHandler.hxx>
+#include <Standard_Failure.hxx>
+#include <Standard_Type.hxx>
+#include <TColgp_Array1OfPnt.hxx>
+#include <TColStd_Array1OfInteger.hxx>
+#include <IntRes2d_Domain.hxx>
+#include <IntCurve_IntConicConic.hxx>
-#include <ProjLib_ProjectedCurve.hxx>
-#include <ProjLib_CompProjectedCurve.hxx>
-#include <ProjLib_HCompProjectedCurve.hxx>
-#include <Approx_CurveOnSurface.hxx>
-#include <Geom_BoundedCurve.hxx>
-#include <Geom_BezierSurface.hxx>
-#include <Geom_BSplineSurface.hxx>
+#include <algorithm>
+IMPLEMENT_STANDARD_RTTIEXT(ShapeConstruct_ProjectCurveOnSurface,Standard_Transient)
#define NCONTROL 23
+
+static void AdjustSecondPointToFirstPoint(const gp_Pnt2d& theFirstPoint,
+ gp_Pnt2d& theSecondPoint,
+ const Handle(Geom_Surface)& theSurf)
+{
+ if (theSurf->IsUPeriodic())
+ {
+ Standard_Real UPeriod = theSurf->UPeriod();
+ Standard_Real NewU = ElCLib::InPeriod(theSecondPoint.X(),
+ theFirstPoint.X() - UPeriod/2,
+ theFirstPoint.X() + UPeriod/2);
+ theSecondPoint.SetX(NewU);
+ }
+ if (theSurf->IsVPeriodic())
+ {
+ Standard_Real VPeriod = theSurf->VPeriod();
+ Standard_Real NewV = ElCLib::InPeriod(theSecondPoint.Y(),
+ theFirstPoint.Y() - VPeriod/2,
+ theFirstPoint.Y() + VPeriod/2);
+ theSecondPoint.SetY(NewV);
+ }
+}
+
+
//=======================================================================
//function : ShapeConstruct_ProjectCurveOnSurface
//purpose :
return myAdjustOverDegen;
}
-
-//=======================================================================
-//function : NbSurfIntervals
-//purpose : work-around of bug in standard method
-// GeomAdaptor_Surface->NbIntervals() (PRO16346)
-//=======================================================================
-
-static Standard_Integer NbSurfIntervals(const Handle(GeomAdaptor_HSurface)& GAS, const GeomAbs_Shape cont)
-{
- Standard_Integer NbU = 0;
- if (GAS->GetType() == GeomAbs_SurfaceOfExtrusion) {
- // extract the surface
- Handle(Geom_SurfaceOfLinearExtrusion) surf = Handle(Geom_SurfaceOfLinearExtrusion)::DownCast(GAS->ChangeSurface().Surface());
- // build a 3d adaptor curve
- GeomAdaptor_Curve Adaptor3dCurve(surf->BasisCurve(), GAS->FirstUParameter(), GAS->LastUParameter());
- if (Adaptor3dCurve.GetType() == GeomAbs_BSplineCurve)
- NbU = Adaptor3dCurve.NbIntervals(cont);
- }
- if (NbU == 0)
- NbU = GAS->NbUIntervals(cont);
- return NbU * (GAS->NbVIntervals(cont));
-}
-
//=======================================================================
//function : Status
//purpose :
//=======================================================================
- Standard_Boolean ShapeConstruct_ProjectCurveOnSurface::Status (const ShapeExtend_Status Status) const
+ Standard_Boolean ShapeConstruct_ProjectCurveOnSurface::Status (const ShapeExtend_Status theStatus) const
{
- return ShapeExtend::DecodeStatus (myStatus, Status);
+ return ShapeExtend::DecodeStatus (myStatus, theStatus);
}
//=======================================================================
const Standard_Real First,
const Standard_Real Last,
Handle(Geom2d_Curve)& c2d,
- const GeomAbs_Shape,
- const Standard_Integer,
- const Standard_Integer)
+ const Standard_Real TolFirst,
+ const Standard_Real TolLast)
{
myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
//Standard_Boolean OK = Standard_True; //szv#4:S4163:12Mar99 not needed
if ( ! bspl.IsNull() ) {
Standard_Integer nint = 0;
for ( Standard_Integer i=1; i < bspl->NbKnots(); i++ )
- if ( bspl->Knot(i+1) > First && bspl->Knot(i) < Last ) nint++;
+ {
+ if ( bspl->Knot(i+1) > First && bspl->Knot(i) < Last )
+ nint++;
+ }
Standard_Integer minPnt = nint * ( bspl->Degree() + 1 );
while ( nbPini < minPnt ) nbPini += NCONTROL - 1;
#ifdef OCCT_DEBUG
if ( nbPini > NCONTROL )
- cout << "Warning: number of points for projecting is " << nbPini << endl;
+ std::cout << "Warning: number of points for projecting is " << nbPini << std::endl;
#endif
}
// $$$$ end :92 (big BSplineCurve C0)
// this number should be "parametric dependent"
- TColgp_Array1OfPnt points(1, nbPini);
- TColStd_Array1OfReal params(1, nbPini);
+ TColgp_SequenceOfPnt points;
+ TColStd_SequenceOfReal params;
NCollection_Sequence<Standard_Real> aKnotCoeffs;
gp_Pnt p3d;
Standard_Integer iPnt;
// use PerformByProjLib algorithm.
if(!bspl.IsNull())
{
- Standard_Integer aNbIntPnts = NCONTROL;
Standard_Real aFirstParam = First; // First parameter of current interval.
Standard_Real aLastParam = Last; // Last parameter of current interval.
}
}
+ GeomAdaptor_Curve aC3DAdaptor(c3d);
+ Standard_Real aMinParSpeed = Precision::Infinite(); // Minimal parameterization speed.
for(; anIdx <= bspl->NbKnots() && aFirstParam < Last; anIdx++)
{
// Fill current knot interval.
aLastParam = Min(Last, bspl->Knot(anIdx));
+ Standard_Integer aNbIntPnts = NCONTROL;
+ // Number of inner points is adapted according to the length of the interval
+ // to avoid a lot of calculations on small range of parameters.
+ if (anIdx > 1)
+ {
+ const Standard_Real aLenThres = 1.e-2;
+ const Standard_Real aLenRatio =
+ (aLastParam - aFirstParam) / (bspl->Knot(anIdx) - bspl->Knot(anIdx - 1));
+ if (aLenRatio < aLenThres)
+ {
+ aNbIntPnts = Standard_Integer(aLenRatio / aLenThres * aNbIntPnts);
+ if (aNbIntPnts < 2)
+ aNbIntPnts = 2;
+ }
+ }
Standard_Real aStep = (aLastParam - aFirstParam) / (aNbIntPnts - 1);
Standard_Integer anIntIdx;
gp_Pnt p3d1, p3d2;
+ // Start filling from first point.
+ aC3DAdaptor.D0(aFirstParam, p3d1);
+
Standard_Real aLength3d = 0.0;
- for(anIntIdx = 0; anIntIdx < aNbIntPnts - 1; anIntIdx++)
+ for(anIntIdx = 1; anIntIdx < aNbIntPnts; anIntIdx++)
{
- // Start filling from first point.
- Standard_Real aParam1 = aFirstParam + aStep * anIntIdx;
- Standard_Real aParam2 = aFirstParam + aStep * (anIntIdx + 1);
- c3d->D0 (aParam1, p3d1);
- c3d->D0 (aParam2, p3d2);
- aLength3d += p3d2.Distance(p3d1);
+ Standard_Real aParam = aFirstParam + aStep * anIntIdx;
+ aC3DAdaptor.D0 (aParam, p3d2);
+ const Standard_Real aDist = p3d2.Distance(p3d1);
+
+ aLength3d += aDist;
+ p3d1 = p3d2;
+
+ aMinParSpeed = Min(aMinParSpeed, aDist / aStep);
}
- aKnotCoeffs.Append(aLength3d / (aLastParam - aFirstParam));
+ const Standard_Real aCoeff = aLength3d / (aLastParam - aFirstParam);
+ if (Abs(aCoeff) > gp::Resolution())
+ aKnotCoeffs.Append(aCoeff);
aFirstParam = aLastParam;
}
}
const Standard_Real aMaxQuotientCoeff = 1500.0;
- if (anEvenlyCoeff > aMaxQuotientCoeff)
+ if (anEvenlyCoeff > aMaxQuotientCoeff &&
+ aMinParSpeed > Precision::Confusion() )
{
PerformByProjLib(c3d, First, Last, c2d);
// PerformByProjLib fail detection:
else t = First + (iPnt - 1) * deltaT;
c3d->D0 (t, p3d);
- points(iPnt) = p3d;
- params(iPnt) = t;
+ points.Append(p3d);
+ params.Append(t);
}
// CALCUL par approximation
- TColgp_Array1OfPnt2d pnt2d(1, nbrPnt);
- ApproxPCurve (nbrPnt,points,params,pnt2d,c2d); //szv#4:S4163:12Mar99 OK not needed
+ TColgp_SequenceOfPnt2d pnt2d;
+ ApproxPCurve (nbrPnt,c3d,TolFirst,TolLast,
+ points,params,pnt2d,c2d); //szv#4:S4163:12Mar99 OK not needed
+ nbPini = points.Length();
if (!c2d.IsNull()) {
myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE2);
return Standard_True;
case GeomAbs_BSplineCurve :
c2d = Projector.BSpline();
break;
- case GeomAbs_BezierCurve :
- case GeomAbs_OtherCurve :
+ default:
// Not possible, handling added to avoid gcc warning.
break;
}
}
}
- catch(Standard_Failure)
- {
+ catch(Standard_Failure const& anException) {
#ifdef OCCT_DEBUG
- cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::PerformByProjLib(): Exception: ";
- Standard_Failure::Caught()->Print(cout); cout << endl;
+ std::cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::PerformByProjLib(): Exception: ";
+ anException.Print(std::cout); std::cout << std::endl;
#endif
+ (void)anException;
myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
c2d.Nullify();
}
return Standard_False;
}
-//=======================================================================
-//function : PerformAdvanced
-//purpose :
-//=======================================================================
-
-Standard_Boolean ShapeConstruct_ProjectCurveOnSurface::PerformAdvanced (Handle(Geom_Curve)& c3d,
- const Standard_Real First,
- const Standard_Real Last,
- Handle(Geom2d_Curve)& c2d)
-{
- Standard_Boolean hasResult = Standard_False;
- Standard_Integer nbintervals;
-
- Standard_Boolean isStandard = (mySurf->Adaptor3d()->GetType() != GeomAbs_Cylinder);
-// && (mySurf->Adaptor3d()->GetType() != GeomAbs_SurfaceOfRevolution);
-
- if (isStandard) isStandard = !mySurf->HasSingularities(myPreci);
- if (isStandard) {
- Handle(GeomAdaptor_HSurface) GAS = mySurf->Adaptor3d();
- Handle(GeomAdaptor_HCurve) GAC = new GeomAdaptor_HCurve (c3d,First,Last);
- nbintervals = NbSurfIntervals(GAS, GeomAbs_C1);//+GAC->NbIntervals(GeomAbs_C3);
- isStandard = (nbintervals < 2);
- }
- if (isStandard) {
- hasResult = PerformByProjLib(c3d, First, Last, c2d);
- }
- if (!hasResult) hasResult = Perform (c3d, First, Last, c2d);
- return hasResult;
-}
-
//=======================================================================
//function : ProjectAnalytic
//purpose :
//! Fix possible period jump and handle walking period parameter.
static Standard_Boolean fixPeriodictyTroubles(gp_Pnt2d *thePnt, // pointer to gp_Pnt2d[4] beginning
Standard_Integer theIdx, // Index of objective coord: 1 ~ X, 2 ~ Y
- Standard_Real thePeriod) // Period on objective coord
- {
- Standard_Integer i;
+ Standard_Real thePeriod, // Period on objective coord
+ Standard_Integer theSavedPoint, // Point number to choose period
+ Standard_Real theSavedParam) // Param from cashe to choose period
+{
+ Standard_Real aSavedParam;
+ Standard_Integer aSavedPoint;
+ Standard_Real aMinParam = 0.0, aMaxParam = thePeriod;
+ if (theSavedPoint < 0) {
+ // normalize to first period by default
+ aSavedParam = 0.5 * thePeriod;
+ aSavedPoint = 0;
+ }
+ else {
+ aSavedParam = theSavedParam;
+ aSavedPoint = theSavedPoint;
+ while (aMinParam > aSavedParam) {
+ aMinParam -= thePeriod;
+ aMaxParam -= thePeriod;
+ }
+ while (aMaxParam < aSavedParam) {
+ aMinParam += thePeriod;
+ aMaxParam += thePeriod;
+ }
+ }
- Standard_Boolean isNeedToFix = Standard_True;
- for (i = 0; i < 3; i++)
- {
- Standard_Real aDiff = Abs (thePnt[i].Coord(theIdx) - thePnt[i + 1].Coord(theIdx));
- if ( aDiff > Precision::PConfusion() &&
- aDiff < thePeriod - Precision::PConfusion())
- {
- // Walk over period coord -> not walking on another isoline in parameter space.
- isNeedToFix = Standard_False;
- }
- }
+ Standard_Real aFixIsoParam = aMinParam;
+ Standard_Boolean isIsoLine = Standard_False;
+ if (aMaxParam - aSavedParam < Precision::PConfusion() ||
+ aSavedParam - aMinParam < Precision::PConfusion()) {
+ aFixIsoParam = aSavedParam;
+ isIsoLine = Standard_True;
+ }
+ // normalize all coordinates to [aMinParam, aMaxParam)
+ for (Standard_Integer i = 0; i < 4; i++) {
+ Standard_Real aParam = thePnt[i].Coord(theIdx);
+ Standard_Real aShift = ShapeAnalysis::AdjustToPeriod(aParam, aMinParam, aMaxParam);
+ aParam += aShift;
+ // Walk over period coord -> not walking on another isoline in parameter space.
+ if (isIsoLine) {
+ if (aMaxParam - aParam < Precision::PConfusion() || aParam - aMinParam < Precision::PConfusion())
+ aParam = aFixIsoParam;
+ }
+ else {
+ if (aMaxParam - aParam < Precision::PConfusion())
+ aParam = aMaxParam;
+ if (aParam - aMinParam < Precision::PConfusion())
+ aParam = aMinParam;
+ }
- if (isNeedToFix)
- {
- // Walking on isoline on another parameter. Fix period paramter to obtained minimum.
- Standard_Real aFixParam = Min (thePnt[0].Coord(theIdx), thePnt[3].Coord(theIdx));
- for(i = 0; i < 4; i++)
- thePnt[i].SetCoord(theIdx, aFixParam);
- }
+ thePnt[i].SetCoord(theIdx, aParam);
+ }
- // Fix possible period jump on first point.
- if ( Abs(thePnt[0].Coord(theIdx) - thePnt[1].Coord(theIdx) ) > thePeriod / 2.01)
- {
- Standard_Real aMult = thePnt[0].Coord(theIdx) < thePnt[1].Coord(theIdx) ? 1.0 : -1.0;
- Standard_Real aNewParam = thePnt[0].Coord(theIdx) + aMult * thePeriod;
- thePnt[0].SetCoord(theIdx, aNewParam);
- return Standard_False;
- }
+ // find possible period jump and increasing or decreasing coordinates vector
+ Standard_Boolean isJump = Standard_False;
+ Standard_Real aPrevDiff = 0.0;
+ Standard_Real aSumDiff = 1.0;
+ for (Standard_Integer i = 0; i < 3; i++) {
+ Standard_Real aDiff = thePnt[i + 1].Coord(theIdx) - thePnt[i].Coord(theIdx);
+ if (aDiff < -Precision::PConfusion()) {
+ aSumDiff *= -1.0;
+ }
+ //if first derivative changes its sign then period jump may exists in this place
+ if (aDiff * aPrevDiff < -Precision::PConfusion()) {
+ isJump = Standard_True;
+ }
+ aPrevDiff = aDiff;
+ }
- // Fix possible period jump on last point.
- if ( Abs(thePnt[2].Coord(theIdx) - thePnt[3].Coord(theIdx) ) > thePeriod / 2.01)
- {
- Standard_Real aMult = thePnt[3].Coord(theIdx) < thePnt[2].Coord(theIdx) ? 1.0 : -1.0;
- Standard_Real aNewParam = thePnt[3].Coord(theIdx) + aMult * thePeriod;
- thePnt[3].SetCoord(theIdx, aNewParam);
- return Standard_False;
- }
+ if (!isJump)
+ return Standard_False;
- return Standard_True;
+ if (aSumDiff > 0) { // decreasing sequence (parameters decrease twice(--) and one period jump(+))
+ for (Standard_Integer i = aSavedPoint; i > 0; i--)
+ if (thePnt[i].Coord(theIdx) > thePnt[i - 1].Coord(theIdx)) {
+ thePnt[i - 1].SetCoord(theIdx, thePnt[i - 1].Coord(theIdx) + thePeriod);
+ }
+ for (Standard_Integer i = aSavedPoint; i < 3; i++)
+ if (thePnt[i].Coord(theIdx) < thePnt[i + 1].Coord(theIdx)) {
+ thePnt[i + 1].SetCoord(theIdx, thePnt[i + 1].Coord(theIdx) - thePeriod);
+ }
+ }
+ else {// increasing sequence (parameters increase twice(++) and one period jump(-))
+ for (Standard_Integer i = aSavedPoint; i > 0; i--)
+ if (thePnt[i].Coord(theIdx) < thePnt[i - 1].Coord(theIdx)) {
+ thePnt[i - 1].SetCoord(theIdx, thePnt[i - 1].Coord(theIdx) - thePeriod);
+ }
+ for (Standard_Integer i = aSavedPoint; i < 3; i++)
+ if (thePnt[i].Coord(theIdx) > thePnt[i + 1].Coord(theIdx)) {
+ thePnt[i + 1].SetCoord(theIdx, thePnt[i + 1].Coord(theIdx) + thePeriod);
+ }
+ }
+
+ // Do not return false, because for nonlinear 2d curves vector of parameters
+ // may change its first derivative and shifted parameters will be broken for this case.
+ return Standard_True;
}
//=======================================================================
//=======================================================================
Handle(Geom2d_Curve) ShapeConstruct_ProjectCurveOnSurface::getLine(
- const TColgp_Array1OfPnt& thepoints,
- const TColStd_Array1OfReal& theparams,
- TColgp_Array1OfPnt2d& thePnt2ds,
+ const TColgp_SequenceOfPnt& thepoints,
+ const TColStd_SequenceOfReal& theparams,
+ TColgp_SequenceOfPnt2d& thePnt2ds,
Standard_Real theTol,
- Standard_Boolean &isRecompute) const
+ Standard_Boolean &isRecompute,
+ Standard_Boolean &isFromCashe) const
{
Standard_Integer nb = thepoints.Length();
gp_Pnt aP[4];
theTol = Precision::Confusion();
aTol2 = theTol * theTol;
}
+ if (aTol2 < Precision::SquareConfusion())
+ aTol2 = Precision::SquareConfusion();
Standard_Real anOldTol2 = aTol2;
+ // auxiliary variables to choose period for connection with previous 2dcurve (if exist)
+ Standard_Integer aSavedPointNum = -1;
+ gp_Pnt2d aSavedPoint;
// project first and last points
for( ; i < 4; i +=3)
{
Standard_Integer j;
- for ( j=0; j < myNbCashe; j++ )
+ for (j = 0; j < myNbCashe; j++)
+ {
if ( myCashe3d[j].SquareDistance (aP[i] ) < aTol2)
{
- aP2d[i] = mySurf->NextValueOfUV (myCashe2d[j], aP[i], theTol,
- theTol);
+ aP2d[i] = mySurf->NextValueOfUV (myCashe2d[j], aP[i], theTol, theTol);
+ aSavedPointNum = i;
+ aSavedPoint = myCashe2d[j];
+ if (i == 0)
+ isFromCashe = Standard_True;
break;
}
- if ( j >= myNbCashe )
- aP2d[i] = mySurf->ValueOfUV(aP[i], theTol);
-
- Standard_Real aDist = mySurf->Gap();
- Standard_Real aCurDist = aDist * aDist;
- if( aTol2 < aDist * aDist)
- aTol2 = aCurDist;
+ }
+
+ if (j >= myNbCashe)
+ aP2d[i] = mySurf->ValueOfUV(aP[i], theTol);
+
+ Standard_Real aDist = mySurf->Gap();
+ Standard_Real aCurDist = aDist * aDist;
+ if( aTol2 < aDist * aDist)
+ aTol2 = aCurDist;
}
-
+
if ( isPeriodicU || isPeriodicV )
{
// Compute second and last but one c2d points.
for(i = 1; i < 3; i++)
{
Standard_Integer j;
- for ( j=0; j < myNbCashe; j++ )
+ for (j = 0; j < myNbCashe; j++)
+ {
if ( myCashe3d[j].SquareDistance (aP[i] ) < aTol2)
{
aP2d[i] = mySurf->NextValueOfUV (myCashe2d[j], aP[i], theTol, theTol);
+ aSavedPointNum = i;
+ aSavedPoint = myCashe2d[j];
break;
}
- if ( j >= myNbCashe )
- aP2d[i] = mySurf->ValueOfUV(aP[i], theTol);
-
- Standard_Real aDist = mySurf->Gap();
- Standard_Real aCurDist = aDist * aDist;
- if( aTol2 < aDist * aDist)
- aTol2 = aCurDist;
+ }
+
+ if (j >= myNbCashe)
+ aP2d[i] = mySurf->ValueOfUV(aP[i], theTol);
+
+ Standard_Real aDist = mySurf->Gap();
+ Standard_Real aCurDist = aDist * aDist;
+ if( aTol2 < aDist * aDist)
+ aTol2 = aCurDist;
}
if (isPeriodicU)
{
- isRecompute = fixPeriodictyTroubles(&aP2d[0], 1 /* X Coord */, mySurf->Surface()->UPeriod());
+ isRecompute = fixPeriodictyTroubles(&aP2d[0], 1 /* X Coord */, mySurf->Surface()->UPeriod(), aSavedPointNum, aSavedPoint.X());
}
if (isPeriodicV)
{
- isRecompute = fixPeriodictyTroubles(&aP2d[0], 2 /* Y Coord */, mySurf->Surface()->VPeriod());
+ isRecompute = fixPeriodictyTroubles(&aP2d[0], 2 /* Y Coord */, mySurf->Surface()->VPeriod(), aSavedPointNum, aSavedPoint.Y());
}
}
+ if (isRecompute && mySurf->Surface()->IsKind(STANDARD_TYPE(Geom_SphericalSurface))) {
+ // Do not try to make line, because in this case may be very special case when 3d curve
+ // go over the pole of, e.g., sphere, and partly lies along seam
+ // (see ApproxPCurve() for more information).
+ return 0;
+ }
+
thePnt2ds.SetValue(1, aP2d[0]);
thePnt2ds.SetValue(nb, aP2d[3]);
return 0;
gp_Vec2d aVec0 (aP2d[0], aP2d[3]);
gp_Vec2d aVec = aVec0 / dPar;
- Standard_Real aFirstPointDist = mySurf->Surface()->Value(aP2d[0].X(), aP2d[0].Y()).
- SquareDistance(thepoints(1));
- for(i = 2; i < nb; i++)
- {
- gp_XY aCurPoint = aP2d[0].XY() + aVec.XY() * (theparams(i) - theparams(1));
- gp_Pnt aCurP;
- mySurf->Surface()->D0(aCurPoint.X(), aCurPoint.Y(), aCurP);
- Standard_Real aDist1 = aCurP.SquareDistance(thepoints(i));
-
- if(Abs (aFirstPointDist - aDist1) > aTol2)
- return 0;
+ Handle(Geom_Surface) aSurf = mySurf->Surface();
+ Standard_Boolean isNormalCheck = aSurf->IsCNu(1) && aSurf->IsCNv(1);
+ if (isNormalCheck) {
+ for(i = 1; i <= nb; i++)
+ {
+ gp_XY aCurPoint = aP2d[0].XY() + aVec.XY() * (theparams(i) - theparams(1));
+ gp_Pnt aCurP;
+ gp_Vec aNormalVec, aDu, aDv;
+ aSurf->D1(aCurPoint.X(), aCurPoint.Y(), aCurP, aDu, aDv);
+ aNormalVec = aDu ^ aDv;
+ if (aNormalVec.SquareMagnitude() < Precision::SquareConfusion()) {
+ isNormalCheck = Standard_False;
+ break;
+ }
+ gp_Lin aNormalLine(aCurP, gp_Dir(aNormalVec));
+ Standard_Real aDist = aNormalLine.Distance(thepoints(i));
+ if (aDist > theTol)
+ return 0;
+ }
+ }
+ if (!isNormalCheck) {
+ Standard_Real aFirstPointDist = mySurf->Surface()->Value(aP2d[0].X(), aP2d[0].Y()).
+ SquareDistance(thepoints(1));
+ aTol2 = Max(aTol2, aTol2 * 2 * aFirstPointDist);
+ for(i = 2; i < nb; i++)
+ {
+ gp_XY aCurPoint = aP2d[0].XY() + aVec.XY() * (theparams(i) - theparams(1));
+ gp_Pnt aCurP;
+ aSurf->D0(aCurPoint.X(), aCurPoint.Y(), aCurP);
+ Standard_Real aDist1 = aCurP.SquareDistance(thepoints(i));
+
+ if(Abs (aFirstPointDist - aDist1) > aTol2)
+ return 0;
+ }
}
// check if pcurve can be represented by Geom2d_Line (parameterised by length)
//=======================================================================
Standard_Boolean ShapeConstruct_ProjectCurveOnSurface::ApproxPCurve(const Standard_Integer nbrPnt,
- const TColgp_Array1OfPnt& points,
- const TColStd_Array1OfReal& params,
- TColgp_Array1OfPnt2d& pnt2d,
- Handle(Geom2d_Curve)& c2d)
+ const Handle(Geom_Curve)& c3d,
+ const Standard_Real TolFirst,
+ const Standard_Real TolLast,
+ TColgp_SequenceOfPnt& points,
+ TColStd_SequenceOfReal& params,
+ TColgp_SequenceOfPnt2d& pnt2d,
+ Handle(Geom2d_Curve)& c2d)
{
// for performance, first try to handle typical case when pcurve is straight
Standard_Boolean isRecompute = Standard_False;
- c2d = getLine(points, params, pnt2d, myPreci, isRecompute);
+ Standard_Boolean isFromCasheLine = Standard_False;
+ for (Standard_Integer iseq = 1; iseq <= nbrPnt; iseq++)
+ {
+ gp_Pnt2d aP2d(0.,0.);
+ pnt2d.Append(aP2d);
+ }
+ c2d = getLine(points, params, pnt2d, myPreci, isRecompute, isFromCasheLine);
if(!c2d.IsNull())
{
+ // fill cashe
+ Standard_Boolean ChangeCycle = Standard_False;
+ if(myNbCashe>0 && myCashe3d[0].Distance(points(1)) > myCashe3d[0].Distance(points(nbrPnt)) &&
+ myCashe3d[0].Distance(points(nbrPnt))<Precision::Confusion())
+ ChangeCycle = Standard_True;
+ myNbCashe = 2;
+ if(ChangeCycle) {
+ myCashe3d[0] = points(1);
+ myCashe3d[1] = points(nbrPnt);
+ myCashe2d[0] = pnt2d(1);
+ myCashe2d[1] = pnt2d(nbrPnt);
+ }
+ else {
+ myCashe3d[1] = points(1);
+ myCashe3d[0] = points(nbrPnt);
+ myCashe2d[1] = pnt2d(1);
+ myCashe2d[0] = pnt2d(nbrPnt);
+ }
return Standard_True;
}
Standard_Boolean isDone = Standard_True;
gp_Pnt p3d;
gp_Pnt2d p2d;
- Standard_Integer i;
Standard_Real isoValue=0., isoPar1=0., isoPar2=0., tPar=0., tdeb,tfin;
Standard_Real Cf, Cl, parf, parl; //szv#4:S4163:12Mar99 dist not needed
Standard_Real gap = myPreci; //:q1
Standard_Boolean ChangeCycle = Standard_False; //skl for OCC3430
+ // auxiliaruy variables to shift 2dcurve, according to previous
+ Standard_Boolean isFromCashe = Standard_False;
+ gp_Pnt2d aSavedPoint;
if( myNbCashe>0 && myCashe3d[0].Distance(points(1))>myCashe3d[0].Distance(points(nbrPnt)) )
//if(myCashe3d[0].Distance(points(nbrPnt))<myPreci)
if(myCashe3d[0].Distance(points(nbrPnt))<Precision::Confusion())
ChangeCycle = Standard_True;
//for( i = 1; i <= nbrPnt; i ++) {
for(Standard_Integer ii=1; ii<=nbrPnt; ii++) {
- if(ChangeCycle) //skl for OCC3430
- i=nbrPnt-ii+1;
- else
- i=ii;
- p3d = points(i);
+ const Standard_Integer aPntIndex = ChangeCycle ? (nbrPnt - ii + 1) : ii;
+ p3d = points (aPntIndex);
if (isoParam) {
if (isoPar2d3d) {
- if (isoPar2 > isoPar1) tPar = params(i);
- else tPar = t1 + t2 - params(i);
+ if (isoPar2 > isoPar1) tPar = params (aPntIndex);
+ else tPar = t1 + t2 - params(aPntIndex);
} else if (!isAnalytic) {
// projection to iso
- if (i==1) tPar = isoPar1;
- else if (i==nbrPnt) tPar = isoPar2;
+ if (aPntIndex == 1) tPar = isoPar1;
+ else if (aPntIndex == nbrPnt) tPar = isoPar2;
else {
- tPar = pout(i);
+ tPar = pout(aPntIndex);
//:S4030 ShapeAnalysis_Curve().Project (cIso,p3d,myPreci,pt,tPar,Cf,Cl); //szv#4:S4163:12Mar99 `dist=` not needed
}
}
if (!isoPar2d3d && isAnalytic) {
- if (i == 1) p2d = valueP1;
- else if (i == nbrPnt) p2d = valueP2;
+ if (aPntIndex == 1) p2d = valueP1;
+ else if (aPntIndex == nbrPnt) p2d = valueP2;
else {
p2d = mySurf->NextValueOfUV(p2d,p3d, myPreci, //%12 pdn 15.02.99 optimizing
Precision::Confusion()+1000*gap); //:q1
}
else {
- if ( (i == 1) && p1OnIso) p2d = valueP1;
- else if( (i == nbrPnt) && p2OnIso) p2d = valueP2;
+ if ( (aPntIndex == 1) && p1OnIso) p2d = valueP1;
+ else if( (aPntIndex == nbrPnt) && p2OnIso) p2d = valueP2;
else {// general case (not an iso) mais attention aux singularites !
// first and last points are already computed by getLine()
- if ( (i == 1 || i == nbrPnt))
+ if (aPntIndex == 1 || aPntIndex == nbrPnt)
{
if (!isRecompute)
{
- p2d = pnt2d(i);
+ p2d = pnt2d (aPntIndex);
gap = mySurf->Gap();
+ if (aPntIndex == 1) {
+ isFromCashe = isFromCasheLine;
+ aSavedPoint = p2d;
+ }
continue;
}
else
{
//:q9 abv 23 Mar 99: use cashe as 1st approach
Standard_Integer j; // svv #1
- for ( j=0; j < myNbCashe; j++ )
+ for (j = 0; j < myNbCashe; ++j)
+ {
if ( myCashe3d[j].SquareDistance ( p3d ) < myPreci*myPreci )
{
- p2d = mySurf->NextValueOfUV (myCashe2d[j], p3d, myPreci,
- Precision::Confusion()+gap);
+ p2d = mySurf->NextValueOfUV (myCashe2d[j], p3d, myPreci, Precision::Confusion()+gap);
+ if (aPntIndex == 1)
+ {
+ isFromCashe = Standard_True;
+ aSavedPoint = myCashe2d[j];
+ }
break;
}
- if ( j >= myNbCashe ) p2d = mySurf->ValueOfUV(p3d, myPreci);
+ }
+ if (j >= myNbCashe)
+ {
+ p2d = mySurf->ValueOfUV(p3d, myPreci);
+ }
}
}
else {
gap = mySurf->Gap();
}
}
- pnt2d (i) = p2d;
+ pnt2d (aPntIndex) = p2d;
if ( ii > 1 ) {
if(ChangeCycle)
- p2d.SetXY ( 2. * p2d.XY() - pnt2d(i+1).XY() );
+ p2d.SetXY ( 2. * p2d.XY() - pnt2d(aPntIndex + 1).XY() );
else
- p2d.SetXY ( 2. * p2d.XY() - pnt2d(i-1).XY() );
+ p2d.SetXY ( 2. * p2d.XY() - pnt2d(aPntIndex - 1).XY() );
}
}
mySurf->ProjectDegenerated(nbrPnt,points,pnt2d,myPreci,Standard_True);
mySurf->ProjectDegenerated(nbrPnt,points,pnt2d,myPreci,Standard_False);
}
+
+ //Check the extremities of 3d curve for coinciding with singularities of surf
+ //Standard_Integer NbSing = mySurf->NbSingularities(Precision::Confusion());
+ gp_Pnt PointFirst = points.First(), PointLast = points.Last();
+ Standard_Real aTolFirst = (TolFirst == -1)? Precision::Confusion() : TolFirst;
+ Standard_Real aTolLast = (TolLast == -1)? Precision::Confusion() : TolLast;
+ for (Standard_Integer i = 1; ; i++)
+ {
+ Standard_Real aPreci, aFirstPar, aLastPar;
+ gp_Pnt aP3d;
+ gp_Pnt2d aFirstP2d, aLastP2d;
+ Standard_Boolean IsUiso;
+ if (!mySurf->Singularity(i, aPreci, aP3d, aFirstP2d, aLastP2d, aFirstPar, aLastPar, IsUiso))
+ break;
+ if (aPreci <= Precision::Confusion() &&
+ PointFirst.Distance(aP3d) <= aTolFirst)
+ {
+ CorrectExtremity(c3d, params, pnt2d,
+ Standard_True, //first point
+ aFirstP2d,
+ IsUiso);
+ }
+ if (aPreci <= Precision::Confusion() &&
+ PointLast.Distance(aP3d) <= aTolLast)
+ {
+ CorrectExtremity(c3d, params, pnt2d,
+ Standard_False, //last point
+ aFirstP2d,
+ IsUiso);
+ }
+ }
// attention aux singularites ... (hors cas iso qui les traite deja)
// if (!isoParam) {
Standard_Real Up = ul - uf;
Standard_Real Vp = vl - vf;
Standard_Real dist2d;
+ const Standard_Real TolOnUPeriod = Precision::Confusion() * Up;
+ const Standard_Real TolOnVPeriod = Precision::Confusion() * Vp;
#ifdef OCCT_DEBUG
if (mySurf->IsUClosed(myPreci) && mySurf->IsVClosed(myPreci)) {//#78 rln 12.03.99 S4135
- cout << "WARNING : Recadrage incertain sur U & VClosed" << endl;
+ std::cout << "WARNING : Recadrage incertain sur U & VClosed" << std::endl;
}
#endif
// Si la surface est UCLosed, on recadre les points
if (mySurf->IsUClosed(myPreci)) {//#78 rln 12.03.99 S4135
// Premier point dans le domain [uf, ul]
Standard_Real prevX, firstX = pnt2d (1).X();
- while (firstX < uf) { firstX += Up; pnt2d (1).SetX(firstX); }
- while (firstX > ul) { firstX -= Up; pnt2d (1).SetX(firstX); }
+ if (!isFromCashe) {
+ // do not shift 2dcurve, if it connects to previous
+ while (firstX < uf) { firstX += Up; pnt2d (1).SetX(firstX); }
+ while (firstX > ul) { firstX -= Up; pnt2d (1).SetX(firstX); }
+ }
+ // shift first point, according to cashe
+ if (mySurf->Surface()->IsUPeriodic() && isFromCashe) {
+ Standard_Real aMinParam = uf, aMaxParam = ul;
+ while (aMinParam > aSavedPoint.X()) {
+ aMinParam -= Up;
+ aMaxParam -= Up;
+ }
+ while (aMaxParam < aSavedPoint.X()) {
+ aMinParam += Up;
+ aMaxParam += Up;
+ }
+ Standard_Real aShift = ShapeAnalysis::AdjustToPeriod(firstX, aMinParam, aMaxParam);
+ firstX += aShift;
+ pnt2d(1).SetX(firstX);
+ }
prevX = firstX;
//:97 abv 1 Feb 98: treat case when curve is whole out of surface bounds
Standard_Real minX = firstX, maxX = firstX;
+ Standard_Boolean ToAdjust = Standard_False;
// On decalle toujours le suivant
- for (i = 2; i <= nbrPnt; i++) {
- // dist2d = pnt2d (i-1).Distance(pnt2d (i));
- Standard_Real CurX = pnt2d (i).X();
+ for (Standard_Integer aPntIter = 2; aPntIter <= pnt2d.Length(); ++aPntIter)
+ {
+ // dist2d = pnt2d (aPntIter - 1).Distance(pnt2d (aPntIter));
+ Standard_Real CurX = pnt2d (aPntIter).X();
dist2d = Abs (CurX - prevX);
- if (dist2d > ( Up / 2) ) {
- if (CurX > prevX + Up/2) {
- while (CurX > prevX + Up/2) { CurX -= Up; pnt2d (i).SetX (CurX); }
- } else if (CurX < prevX - Up/2) {
- while (CurX < prevX - Up/2) { CurX += Up; pnt2d (i).SetX (CurX); }
- }
-
+ if (dist2d > ( Up / 2) )
+ {
+ InsertAdditionalPointOrAdjust(ToAdjust, 1, Up, TolOnUPeriod,
+ CurX, prevX,
+ c3d,
+ aPntIter,
+ points, params, pnt2d);
}
prevX = CurX;
if ( minX > CurX ) minX = CurX; //:97
}
//:97
- Standard_Real midX = 0.5 * ( minX + maxX );
- Standard_Real shiftX=0.;
- if ( midX > ul ) shiftX = -Up;
- else if ( midX < uf ) shiftX = Up;
- if ( shiftX != 0. )
- for ( i=1; i <= nbrPnt; i++ ) pnt2d(i).SetX ( pnt2d(i).X() + shiftX );
+ if (!isFromCashe) {
+ // do not shift 2dcurve, if it connects to previous
+ Standard_Real midX = 0.5 * ( minX + maxX );
+ Standard_Real shiftX=0.;
+ if ( midX > ul ) shiftX = -Up;
+ else if ( midX < uf ) shiftX = Up;
+ if ( shiftX != 0. )
+ for (Standard_Integer aPntIter = 1; aPntIter <= pnt2d.Length(); ++aPntIter)
+ pnt2d (aPntIter).SetX ( pnt2d (aPntIter).X() + shiftX );
+ }
}
// Si la surface est VCLosed, on recadre les points
// Same code as UClosed : optimisation souhaitable !!
if (mySurf->IsVClosed(myPreci) || mySurf->Surface()->IsKind (STANDARD_TYPE (Geom_SphericalSurface))) {
// Premier point dans le domain [vf, vl]
Standard_Real prevY, firstY = pnt2d (1).Y();
- while (firstY < vf) { firstY += Vp; pnt2d (1).SetY(firstY); }
- while (firstY > vl) { firstY -= Vp; pnt2d (1).SetY(firstY); }
+ if (!isFromCashe) {
+ // do not shift 2dcurve, if it connects to previous
+ while (firstY < vf) { firstY += Vp; pnt2d (1).SetY(firstY); }
+ while (firstY > vl) { firstY -= Vp; pnt2d (1).SetY(firstY); }
+ }
+ // shift first point, according to cashe
+ if (mySurf->Surface()->IsVPeriodic() && isFromCashe) {
+ Standard_Real aMinParam = vf, aMaxParam = vl;
+ while (aMinParam > aSavedPoint.Y()) {
+ aMinParam -= Vp;
+ aMaxParam -= Vp;
+ }
+ while (aMaxParam < aSavedPoint.Y()) {
+ aMinParam += Vp;
+ aMaxParam += Vp;
+ }
+ Standard_Real aShift = ShapeAnalysis::AdjustToPeriod(firstY, aMinParam, aMaxParam);
+ firstY += aShift;
+ pnt2d(1).SetY(firstY);
+ }
prevY = firstY;
//:97 abv 1 Feb 98: treat case when curve is whole out of surface bounds
Standard_Real minY = firstY, maxY = firstY;
+ Standard_Boolean ToAdjust = Standard_False;
// On decalle toujours le suivant
- for (i = 2; i <= nbrPnt; i ++) {
+ for (Standard_Integer aPntIter = 2; aPntIter <= pnt2d.Length(); ++aPntIter)
+ {
// dist2d = pnt2d (i-1).Distance(pnt2d (i));
- Standard_Real CurY = pnt2d (i).Y();
+ Standard_Real CurY = pnt2d (aPntIter).Y();
dist2d = Abs (CurY - prevY);
- if (dist2d > ( Vp / 2) ) {
- if (CurY > prevY + Vp/2) {
- while (CurY > prevY + Vp/2) { CurY -= Vp; pnt2d (i).SetY (CurY); }
- } else if (CurY < prevY - Vp/2) {
- while (CurY < prevY - Vp/2) { CurY += Vp; pnt2d (i).SetY (CurY); }
- }
+ if (dist2d > ( Vp / 2) )
+ {
+ InsertAdditionalPointOrAdjust(ToAdjust, 2, Vp, TolOnVPeriod,
+ CurY, prevY,
+ c3d,
+ aPntIter,
+ points, params, pnt2d);
}
prevY = CurY;
if ( minY > CurY ) minY = CurY; //:97
}
//:97
- Standard_Real midY = 0.5 * ( minY + maxY );
- Standard_Real shiftY=0.;
- if ( midY > vl ) shiftY = -Vp;
- else if ( midY < vf ) shiftY = Vp;
- if ( shiftY != 0. )
- for ( i=1; i <= nbrPnt; i++ ) pnt2d(i).SetY ( pnt2d(i).Y() + shiftY );
+ if (!isFromCashe) {
+ // do not shift 2dcurve, if it connects to previous
+ Standard_Real midY = 0.5 * ( minY + maxY );
+ Standard_Real shiftY=0.;
+ if ( midY > vl ) shiftY = -Vp;
+ else if ( midY < vf ) shiftY = Vp;
+ if ( shiftY != 0. )
+ for (Standard_Integer aPntIter = 1; aPntIter <= pnt2d.Length(); ++aPntIter)
+ pnt2d(aPntIter).SetY ( pnt2d(aPntIter).Y() + shiftY );
+ }
}
//#69 rln 01.03.99 S4135 bm2_sd_t4-A.stp entity 30
//#78 rln 12.03.99 S4135
if (mySurf->IsVClosed(myPreci) || mySurf->Surface()->IsKind (STANDARD_TYPE (Geom_SphericalSurface))) {
- for (i = 2; i <= nbrPnt; i++) {
+ for (Standard_Integer aPntIter = 2; aPntIter <= pnt2d.Length(); ++aPntIter) {
//#1 rln 11/02/98 ca_exhaust.stp entity #9869 dist2d = pnt2d (i-1).Distance(pnt2d (i));
- dist2d = Abs (pnt2d(i).Y() - pnt2d(i - 1).Y());
+ dist2d = Abs (pnt2d (aPntIter).Y() - pnt2d (aPntIter - 1).Y());
if (dist2d > ( Vp / 2) ) {
// ATTENTION : il faut regarder ou le decalage se fait.
// si plusieurs points sont decalles, il faut plusieurs passes
Standard_Boolean currOnLast = Standard_False;
// .X ? plutot .Y , non ?
- Standard_Real distPrevVF = Abs(pnt2d (i-1).Y() - vf);
- Standard_Real distPrevVL = Abs(pnt2d (i-1).Y() - vl);
- Standard_Real distCurrVF = Abs(pnt2d (i).Y() - vf);
- Standard_Real distCurrVL = Abs(pnt2d (i).Y() - vl);
+ Standard_Real distPrevVF = Abs(pnt2d (aPntIter - 1).Y() - vf);
+ Standard_Real distPrevVL = Abs(pnt2d (aPntIter - 1).Y() - vl);
+ Standard_Real distCurrVF = Abs(pnt2d (aPntIter).Y() - vf);
+ Standard_Real distCurrVL = Abs(pnt2d (aPntIter).Y() - vl);
Standard_Real theMin = distPrevVF;
prevOnFirst = Standard_True;
}
// Modifs RLN/Nijni 3-DEC-1997
if (prevOnFirst) {
- // on decalle le point (i-1) en V Last
- gp_Pnt2d newPrev(pnt2d (i-1).X(), vf); // instead of vl RLN/Nijni
- pnt2d (i-1) = newPrev;
+ // on decalle le point (aPntIter - 1) en V Last
+ gp_Pnt2d newPrev(pnt2d (aPntIter - 1).X(), vf); // instead of vl RLN/Nijni
+ pnt2d (aPntIter - 1) = newPrev;
}
else if (prevOnLast) {
- // on decalle le point (i-1) en V first
- gp_Pnt2d newPrev(pnt2d (i-1).X(), vl); // instead of vf RLN/Nijni
- pnt2d (i-1) = newPrev;
+ // on decalle le point (aPntIter - 1) en V first
+ gp_Pnt2d newPrev(pnt2d (aPntIter - 1).X(), vl); // instead of vf RLN/Nijni
+ pnt2d (aPntIter - 1) = newPrev;
}
else if (currOnFirst) {
- // on decalle le point (i) en V Last
- gp_Pnt2d newCurr(pnt2d (i).X(),vf); // instead of vl RLN/Nijni
- pnt2d (i) = newCurr;
+ // on decalle le point (aPntIter) en V Last
+ gp_Pnt2d newCurr(pnt2d (aPntIter).X(),vf); // instead of vl RLN/Nijni
+ pnt2d (aPntIter) = newCurr;
}
else if (currOnLast) {
- // on decalle le point (i) en V First
- gp_Pnt2d newCurr(pnt2d (i).X(), vl); // instead of vf RLN/Nijni
- pnt2d (i) = newCurr;
+ // on decalle le point (aPntIter) en V First
+ gp_Pnt2d newCurr(pnt2d (aPntIter).X(), vl); // instead of vf RLN/Nijni
+ pnt2d (aPntIter) = newCurr;
}
// on verifie
#ifdef OCCT_DEBUG
- dist2d = pnt2d (i-1).Distance(pnt2d (i));
+ dist2d = pnt2d (aPntIter - 1).Distance(pnt2d (aPntIter));
if (dist2d > ( Vp / 2) ) {
- cout << "Echec dans le recadrage" << endl;
+ std::cout << "Echec dans le recadrage" << std::endl;
}
#endif
}
Standard_Integer OnBound=0, PrevOnBound=0;
Standard_Integer ind; // svv #1
Standard_Boolean start = Standard_True;
- for ( ind=1; ind <= nbrPnt; ind++ ) {
+ for ( ind=1; ind <= pnt2d.Length(); ind++ ) {
Standard_Real CurX = pnt2d(ind).X();
// abv 16 Mar 00: trj3_s1-ug.stp #697: ignore points in singularity
if ( mySurf->IsDegenerated ( points(ind), Precision::Confusion() ) )
PrevOnBound = OnBound;
}
// if found, adjust seam part
- if ( ind <= nbrPnt ) {
+ if ( ind <= pnt2d.Length() ) {
PrevX = ( myAdjustOverDegen ? uf : ul );
Standard_Real dU = Up/2 + Precision::PConfusion();
if ( PrevOnBound ) {
}
else if ( OnBound ) {
pnt2d(ind).SetX ( PrevX );
- for ( Standard_Integer j=ind+1; j <= nbrPnt; j++ ) {
+ for ( Standard_Integer j=ind+1; j <= pnt2d.Length(); j++ ) {
Standard_Real CurX = pnt2d(j).X();
while ( CurX < PrevX - dU ) pnt2d(j).SetX ( CurX += Up );
while ( CurX > PrevX + dU ) pnt2d(j).SetX ( CurX -= Up );
Standard_Integer OnBound=0, PrevOnBound=0;
Standard_Integer ind; // svv #1
Standard_Boolean start = Standard_True;
- for ( ind=1; ind <= nbrPnt; ind++ ) {
+ for ( ind=1; ind <= pnt2d.Length(); ind++ ) {
Standard_Real CurY = pnt2d(ind).Y();
// abv 16 Mar 00: trj3_s1-ug.stp #697: ignore points in singularity
if ( mySurf->IsDegenerated ( points(ind), Precision::Confusion() ) )
PrevOnBound = OnBound;
}
// if found, adjust seam part
- if ( ind <= nbrPnt ) {
+ if ( ind <= pnt2d.Length() ) {
PrevY = ( myAdjustOverDegen ? vf : vl );
Standard_Real dV = Vp/2 + Precision::PConfusion();
if ( PrevOnBound ) {
}
else if ( OnBound ) {
pnt2d(ind).SetY ( PrevY );
- for ( Standard_Integer j=ind+1; j <= nbrPnt; j++ ) {
+ for ( Standard_Integer j=ind+1; j <= pnt2d.Length(); j++ ) {
Standard_Real CurY = pnt2d(j).Y();
while ( CurY < PrevY - dV ) pnt2d(j).SetY ( CurY += Vp );
while ( CurY > PrevY + dV ) pnt2d(j).SetY ( CurY -= Vp );
//if(myCashe3d[0].Distance(points(1))>Precision::Confusion() &&
// myCashe3d[1].Distance(points(1))>Precision::Confusion()) {
myCashe3d[0] = points(1);
- myCashe3d[1] = points(nbrPnt);
+ myCashe3d[1] = points.Last();
myCashe2d[0] = pnt2d(1);
- myCashe2d[1] = pnt2d(nbrPnt);
+ myCashe2d[1] = pnt2d.Last();
}
else {
myCashe3d[1] = points(1);
- myCashe3d[0] = points(nbrPnt);
+ myCashe3d[0] = points.Last();
myCashe2d[1] = pnt2d(1);
- myCashe2d[0] = pnt2d(nbrPnt);
+ myCashe2d[0] = pnt2d.Last();
}
return isDone;
}
C2d = new Geom2d_BSplineCurve ( poles2d, weights, knots, multiplicities, crv3d->Degree(), crv3d->IsPeriodic());
return C2d;
}
- catch(Standard_Failure) {
-#ifdef OCCT_DEBUG //:s5
+ catch(Standard_Failure const& anException) {
+#ifdef OCCT_DEBUG
+ //:s5
// debug ...
Standard_Integer nbp = params->Length();
Standard_Integer nb2 = points2d->Length();
- cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::ApproximatePCurve(): Exception: ";
- Standard_Failure::Caught()->Print(cout);
- cout<<"Pb Geom2dAPI_Approximate, tol2d="<<theTolerance2d<<" NbParams="<<nbp<<" NbPnts="<<nb2<<endl;
+ std::cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::ApproximatePCurve(): Exception: ";
+ anException.Print(std::cout);
+ std::cout<<"Pb Geom2dAPI_Approximate, tol2d="<<theTolerance2d<<" NbParams="<<nbp<<" NbPnts="<<nb2<<std::endl;
// if (nb2 > nbp) nb2 = nbp;
// Standard_Real rbp,rb2; rbp = nbp; rb2 = nb2;
// // dbl.AddString ("NbP2d/NbParams puis X Y Param -> mini");
// dbl.AddXYZ (quoi);
// }
#endif
+ (void)anException;
C2d.Nullify();
}
return C2d;
myInterPol2d.Perform();
if (myInterPol2d.IsDone()) C2d = myInterPol2d.Curve();
}
- catch(Standard_Failure) {
-#ifdef OCCT_DEBUG //:s5
+ catch(Standard_Failure const& anException) {
+#ifdef OCCT_DEBUG
+//:s5
// // debug ...
Standard_Integer nbp = params->Length();
Standard_Integer nb2 = points2d->Length();
- cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::InterpolatePCurve(): Exception: ";
- Standard_Failure::Caught()->Print(cout);
- cout<<"Pb Geom2dAPI_Interpolate, tol2d="<<theTolerance2d<<" NbParams="<<nbp<<" NbPnts="<<nb2<<endl;
+ std::cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::InterpolatePCurve(): Exception: ";
+ anException.Print(std::cout);
+ std::cout<<"Pb Geom2dAPI_Interpolate, tol2d="<<theTolerance2d<<" NbParams="<<nbp<<" NbPnts="<<nb2<<std::endl;
// if (nb2 > nbp) nb2 = nbp;
// Standard_Real rbp,rb2; rbp = nbp; rb2 = nb2;
// // dbl.AddString ("NbP2d/NbParams puis X Y Param -> mini");
// dbl.AddXYZ (quoi);
// }
#endif
+ (void)anException;
C2d.Nullify();
}
return C2d;
myInterPol.Perform();
if (myInterPol.IsDone()) C3d = myInterPol.Curve();
}
- catch(Standard_Failure) {
- C3d.Nullify();
-#ifdef OCCT_DEBUG //:s5
- cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::InterpolateCurve3d(): Exception: ";
- Standard_Failure::Caught()->Print(cout); cout << endl;
+ catch(Standard_Failure const& anException) {
+#ifdef OCCT_DEBUG
+ //:s5
+ std::cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::InterpolateCurve3d(): Exception: ";
+ anException.Print(std::cout); std::cout << std::endl;
#endif
+ (void)anException;
+ C3d.Nullify();
}
return C3d;
}
+//============================================================================================
+//function : CorrectExtremity
+//purpose : corrects first or last 2d point of future curve
+// in the case when it coincids with a singularity of surface
+//============================================================================================
+
+void ShapeConstruct_ProjectCurveOnSurface::CorrectExtremity(const Handle(Geom_Curve)& theC3d,
+ const TColStd_SequenceOfReal& theParams,
+ TColgp_SequenceOfPnt2d& thePnt2d,
+ const Standard_Boolean theIsFirstPoint,
+ const gp_Pnt2d& thePointOnIsoLine,
+ const Standard_Boolean theIsUiso)
+{
+ Standard_Integer NbPnt = thePnt2d.Length();
+ Standard_Integer IndCoord = (theIsUiso)? 2 : 1;
+ Standard_Real SingularityCoord = thePointOnIsoLine.Coord(3-IndCoord);
+ gp_Pnt2d EndPoint = (theIsFirstPoint)? thePnt2d(1) : thePnt2d(NbPnt);
+ Standard_Real FinishCoord = EndPoint.Coord(3-IndCoord); //the constant coord of isoline
+
+ gp_Dir2d aDir = (theIsUiso)? gp::DY2d() : gp::DX2d();
+ gp_Lin2d anIsoLine(EndPoint, aDir);
+ IntRes2d_Domain Dom1, Dom2;
+
+ Standard_Boolean IsPeriodic = (theIsUiso)?
+ mySurf->Surface()->IsVPeriodic() : mySurf->Surface()->IsUPeriodic();
+
+ gp_Pnt2d FirstPointOfLine, SecondPointOfLine;
+ Standard_Real FinishParam, FirstParam, SecondParam;
+
+ if (theIsFirstPoint)
+ {
+ FirstPointOfLine = thePnt2d(3);
+ SecondPointOfLine = thePnt2d(2);
+ FinishParam = theParams(1);
+ FirstParam = theParams(3);
+ SecondParam = theParams(2);
+ }
+ else //last point
+ {
+ FirstPointOfLine = thePnt2d(NbPnt-2);
+ SecondPointOfLine = thePnt2d(NbPnt-1);
+ FinishParam = theParams(NbPnt);
+ FirstParam = theParams(NbPnt-2);
+ SecondParam = theParams(NbPnt-1);
+ }
+
+ if (SingularityCoord > FinishCoord &&
+ SecondPointOfLine.Coord(3-IndCoord) > FinishCoord)
+ return; //the curve passes through the singularity, do nothing
+ if (SingularityCoord < FinishCoord &&
+ SecondPointOfLine.Coord(3-IndCoord) < FinishCoord)
+ return; //the curve passes through the singularity, do nothing
+ //Check correctness of <EndPoint>
+ {
+ const Standard_Real aPrevDist = Abs(SecondPointOfLine.Coord(IndCoord) - FirstPointOfLine.Coord(IndCoord));
+ const Standard_Real aCurDist = Abs(EndPoint.Coord(IndCoord) - SecondPointOfLine.Coord(IndCoord));
+ if (aCurDist <= 2 * aPrevDist)
+ return;
+ }
+
+ gp_Pnt2d FinishPoint = (theIsUiso)? gp_Pnt2d(FinishCoord, SecondPointOfLine.Y()) :
+ gp_Pnt2d(SecondPointOfLine.X(), FinishCoord); //first approximation of <FinishPoint>
+
+ for (;;)
+ {
+ if (Abs(SecondPointOfLine.Coord(3-IndCoord) - FinishCoord) <= 2*Precision::PConfusion())
+ break;
+
+ gp_Vec2d aVec(FirstPointOfLine, SecondPointOfLine);
+ Standard_Real aSqMagnitude = aVec.SquareMagnitude();
+ if (aSqMagnitude <= 1.e-32)
+ break;
+ aDir.SetCoord(aVec.X(), aVec.Y());
+
+ gp_Lin2d aLine(FirstPointOfLine, aDir);
+ IntCurve_IntConicConic Intersector(anIsoLine, Dom1,
+ aLine, Dom2,
+ 1.e-10, 1.e-10);
+ if (Intersector.IsDone() && !Intersector.IsEmpty())
+ {
+ IntRes2d_IntersectionPoint IntPoint = Intersector.Point(1);
+ FinishPoint = IntPoint.Value();
+ }
+ else
+ FinishPoint = (theIsUiso)? gp_Pnt2d(FinishCoord, SecondPointOfLine.Y()) :
+ gp_Pnt2d(SecondPointOfLine.X(), FinishCoord);
+
+ gp_Pnt2d PrevPoint = FirstPointOfLine;
+ FirstPointOfLine = SecondPointOfLine;
+ FirstParam = SecondParam;
+ SecondParam = (FirstParam + FinishParam)/2;
+ if (Abs(SecondParam - FirstParam) <= 2*Precision::PConfusion())
+ break;
+ gp_Pnt aP3d;
+ theC3d->D0(SecondParam, aP3d);
+ SecondPointOfLine = mySurf->NextValueOfUV(FirstPointOfLine, aP3d,
+ myPreci, Precision::Confusion());
+ if (IsPeriodic)
+ AdjustSecondPointToFirstPoint(FirstPointOfLine, SecondPointOfLine, mySurf->Surface());
+
+ //Check <SecondPointOfLine> to be enough close to <FirstPointOfLine>
+ //because when a projected point is too close to singularity,
+ //the non-constant coordinate becomes random.
+ const Standard_Real aPrevDist = Abs(FirstPointOfLine.Coord(IndCoord) - PrevPoint.Coord(IndCoord));
+ const Standard_Real aCurDist = Abs(SecondPointOfLine.Coord(IndCoord) - FirstPointOfLine.Coord(IndCoord));
+ if (aCurDist > 2 * aPrevDist)
+ break;
+ }
+
+ if (theIsFirstPoint)
+ thePnt2d(1) = FinishPoint;
+ else
+ thePnt2d(NbPnt) = FinishPoint;
+}
+
+//============================================================================================
+//function : InsertAdditionalPointOrAdjust
+//purpose : If the current point is too far from the previous point
+// (more than half-period of surface), it can happen in two cases:
+// 1. Real current step on corresponding coordinate is small, all we need is adjust;
+// 2. Current step on corresponding coordinate is really bigger than half-period of
+// surface in this parametric direction, so we must add additional point to exclude
+// such big intervals between points in 2d space.
+//============================================================================================
+
+void ShapeConstruct_ProjectCurveOnSurface::
+InsertAdditionalPointOrAdjust(Standard_Boolean& ToAdjust,
+ const Standard_Integer theIndCoord,
+ const Standard_Real Period,
+ const Standard_Real TolOnPeriod,
+ Standard_Real& CurCoord,
+ const Standard_Real prevCoord,
+ const Handle(Geom_Curve)& c3d,
+ Standard_Integer& theIndex,
+ TColgp_SequenceOfPnt& points,
+ TColStd_SequenceOfReal& params,
+ TColgp_SequenceOfPnt2d& pnt2d)
+{
+ Standard_Real CorrectedCurCoord = ElCLib::InPeriod(CurCoord,
+ prevCoord - Period/2,
+ prevCoord + Period/2);
+ if (!ToAdjust)
+ {
+ Standard_Real CurPar = params(theIndex);
+ Standard_Real PrevPar = params(theIndex-1);
+ Standard_Real MidPar = (PrevPar + CurPar)/2;
+ gp_Pnt MidP3d;
+ c3d->D0(MidPar, MidP3d);
+ gp_Pnt2d MidP2d = mySurf->ValueOfUV(MidP3d, myPreci);
+ Standard_Real MidCoord = MidP2d.Coord(theIndCoord);
+ MidCoord = ElCLib::InPeriod(MidCoord, prevCoord - Period/2, prevCoord + Period/2);
+ Standard_Real FirstCoord = prevCoord, LastCoord = CorrectedCurCoord;
+ if (LastCoord < FirstCoord)
+ {Standard_Real tmp = FirstCoord; FirstCoord = LastCoord; LastCoord = tmp;}
+ if (LastCoord - FirstCoord <= TolOnPeriod)
+ ToAdjust = Standard_True;
+ else if (FirstCoord <= MidCoord && MidCoord <= LastCoord)
+ ToAdjust = Standard_True;
+ else //add mid point
+ {
+ //Standard_Real RefU = prevX;
+ Standard_Boolean Success = Standard_True;
+ Standard_Real FirstT = PrevPar; //params(i-1)
+ Standard_Real LastT = CurPar; //params(i)
+ MidCoord = MidP2d.Coord(theIndCoord);
+ while (Abs(MidCoord - prevCoord) >= Period/2 - TolOnPeriod ||
+ Abs(CurCoord - MidCoord) >= Period/2 - TolOnPeriod)
+ {
+ if (MidPar - FirstT <= Precision::PConfusion() ||
+ LastT - MidPar <= Precision::PConfusion())
+ {
+ Success = Standard_False;
+ break; //wrong choice
+ }
+ if (Abs(MidCoord - prevCoord) >= Period/2 - TolOnPeriod)
+ LastT = (FirstT + LastT)/2;
+ else
+ FirstT = (FirstT + LastT)/2;
+ MidPar = (FirstT + LastT)/2;
+ c3d->D0(MidPar, MidP3d);
+ MidP2d = mySurf->ValueOfUV(MidP3d, myPreci);
+ MidCoord = MidP2d.Coord(theIndCoord);
+ }
+ if (Success)
+ {
+ points.InsertBefore(theIndex, MidP3d);
+ params.InsertBefore(theIndex, MidPar);
+ pnt2d.InsertBefore(theIndex, MidP2d);
+ theIndex++;
+ }
+ else
+ ToAdjust = Standard_True;
+ } //add mid point
+ } //if (!ToAdjust)
+ if (ToAdjust)
+ {
+ CurCoord = CorrectedCurCoord;
+ pnt2d(theIndex).SetCoord (theIndCoord, CurCoord);
+ }
+}
+
//=======================================================================
//function : CheckPoints
//purpose :
// will store 0 when the point is to be removed, 1 otherwise
TColStd_Array1OfInteger tmpParam(firstElem, lastElem);
- for (i = firstElem; i<=lastElem ; i++) tmpParam.SetValue(i,1);
+ for (i = firstElem; i<=lastElem ; i++)
+ tmpParam.SetValue(i,1);
Standard_Real DistMin2 = RealLast();
gp_Pnt Prev = points->Value (lastValid);
gp_Pnt Curr;
return;
#ifdef OCCT_DEBUG
- cout << "Warning : removing 3d points for interpolation" << endl;
+ std::cout << "Warning : removing 3d points for interpolation" << std::endl;
#endif
// Build new HArrays
Standard_Integer newLast = lastElem - nbPntDropped;
if ((newLast - firstElem + 1) < 2) {
#ifdef OCCT_DEBUG
- cout << "Too many degenerated points for 3D interpolation" << endl;
+ std::cout << "Too many degenerated points for 3D interpolation" << std::endl;
#endif
return;
}
return;
#ifdef OCCT_DEBUG
- cout << "Warning : removing 2d points for interpolation" << endl;
+ std::cout << "Warning : removing 2d points for interpolation" << std::endl;
#endif
// Build new HArrays
Standard_Integer newLast = lastElem - nbPntDropped;
if ((newLast - firstElem + 1) < 2) {
#ifdef OCCT_DEBUG
- cout << "Too many degenerated points for 2D interpolation" << endl;
+ std::cout << "Too many degenerated points for 2D interpolation" << std::endl;
#endif
//pdn 12.02.99 S4135 Creating pcurve with minimal length.
tmpParam.SetValue(firstElem,1);
for (i = firstElem; i <= lastElem ; i++) {
if (tmpParam.Value(i) == 1) {
#ifdef OCCT_DEBUG
- cout << "Point " << i << " : " << points->Value(i).X() << " " << points->Value(i).Y() << " at param " << params->Value(i) << endl;
+ std::cout << "Point " << i << " : " << points->Value(i).X() << " " << points->Value(i).Y() << " at param " << params->Value(i) << std::endl;
#endif
newPnts->SetValue(newCurr, points->Value(i));
newParams->SetValue(newCurr, params->Value(i));
}
else {
#ifdef OCCT_DEBUG
- cout << "Removed " << i << " : " << points->Value(i).X() << " " << points->Value(i).Y() << " at param " << params->Value(i) << endl;
+ std::cout << "Removed " << i << " : " << points->Value(i).X() << " " << points->Value(i).Y() << " at param " << params->Value(i) << std::endl;
#endif
}
}
//:p9 abv 11 Mar 99: PRO7226 #489490: find nearest boundary instead of first one
Standard_Boolean ShapeConstruct_ProjectCurveOnSurface::IsAnIsoparametric(const Standard_Integer nbrPnt,
- const TColgp_Array1OfPnt& points,
- const TColStd_Array1OfReal& params,
+ const TColgp_SequenceOfPnt& points,
+ const TColStd_SequenceOfReal& params,
Standard_Boolean& isoTypeU,
Standard_Boolean& p1OnIso,
gp_Pnt2d& valueP1,
} */
return isoParam;
} // RAJOUT
- catch(Standard_Failure) {
-// pb : on affiche ce qu on peut
+ catch(Standard_Failure const& anException) {
#ifdef OCCT_DEBUG
+// pb : on affiche ce qu on peut
for (Standard_Integer numpnt = 1; numpnt <= nbrPnt; numpnt ++) {
- cout<<"["<<numpnt<<"]param="<<params(numpnt)<<" point=("<<
- points(numpnt).X()<<" "<<points(numpnt).Y()<<" "<<points(numpnt).Z()<<")"<<endl;
+ std::cout<<"["<<numpnt<<"]param="<<params(numpnt)<<" point=("<<
+ points(numpnt).X()<<" "<<points(numpnt).Y()<<" "<<points(numpnt).Z()<<")"<<std::endl;
}
+ std::cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::IsAnIsoparametric(): Exception: ";
+ anException.Print(std::cout); std::cout << std::endl;
#endif
-#ifdef OCCT_DEBUG //:s5
- cout << "Warning: ShapeConstruct_ProjectCurveOnSurface::IsAnIsoparametric(): Exception: ";
- Standard_Failure::Caught()->Print(cout); cout << endl;
-#endif
+ (void)anException;
return Standard_False;
}
}