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0025468: GeomConvert_ApproxSurface should have a constructor for adaptors

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Additional constructors were implemented into classes:
GeomConvert_ApproxCurve
GeomConvert_ApproxSurface
Geom2dConvert_ApproxCurve
This commit is contained in:
azv 2014-12-05 14:29:49 +03:00 committed by bugmaster
parent 8a864791fe
commit be09e9bf18
8 changed files with 204 additions and 79 deletions
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2
src/Geom2dConvert/Geom2dConvert.cdl
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@ -38,7 +38,7 @@ package Geom2dConvert
-- . A survey of curve and surface methods in CAGD (Wolfgang BOHM)
-- CAGD 1 1984
uses Standard, TColStd, TColGeom2d,gp, Geom2d, Convert,GeomAbs
uses Standard, TColStd, TColGeom2d,gp, Geom2d, Convert,GeomAbs, Adaptor2d
is

23
src/Geom2dConvert/Geom2dConvert_ApproxCurve.cdl
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@ -21,6 +21,7 @@ class ApproxCurve from Geom2dConvert
uses
Curve from Geom2d,
BSplineCurve from Geom2d,
HCurve2d from Adaptor2d,
Shape from GeomAbs,
OutOfRange from Standard
@ -41,6 +42,19 @@ is
-- - the highest degree MaxDegree which the
-- polynomial defining the BSpline is allowed to have.
Create (Curve: HCurve2d from Adaptor2d;
Tol2d: Real;
Order: Shape from GeomAbs;
MaxSegments: Integer;
MaxDegree: Integer) returns ApproxCurve from Geom2dConvert;
---Purpose: Constructs an approximation framework defined by
-- - the 2D conic Curve
-- - the tolerance value Tol2d
-- - the degree of continuity Order
-- - the maximum number of segments allowed MaxSegments
-- - the highest degree MaxDegree which the
-- polynomial defining the BSpline is allowed to have.
Curve(me) returns BSplineCurve from Geom2d;
---Purpose: Returns the 2D BSpline curve resulting from the
-- approximation algorithm.
@ -62,8 +76,15 @@ is
Dump(me; o: in out OStream);
---Purpose: Print on the stream o information about the object
Approximate(me: in out;
theCurve: HCurve2d from Adaptor2d;
theTol3d: Real;
theOrder: Shape from GeomAbs;
theMaxSegments: Integer;
theMaxDegree: Integer) is private;
---Purpose: Converts a curve to B-spline
fields
myCurve : Curve from Geom2d;
myIsDone : Boolean from Standard;
myHasResult : Boolean from Standard;
myBSplCurve : BSplineCurve from Geom2d;

37
src/Geom2dConvert/Geom2dConvert_ApproxCurve.cxx
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@ -102,32 +102,49 @@ void Geom2dConvert_ApproxCurve_Eval::Evaluate (Standard_Integer *Dimension,
Geom2dConvert_ApproxCurve::Geom2dConvert_ApproxCurve(const Handle(Geom2d_Curve)& Curve,const Standard_Real Tol2d,const GeomAbs_Shape Order,const Standard_Integer MaxSegments,const Standard_Integer MaxDegree)
{
Handle(Geom2dAdaptor_HCurve) HCurve = new Geom2dAdaptor_HCurve (Curve);
Approximate(HCurve, Tol2d, Order, MaxSegments, MaxDegree);
}
Geom2dConvert_ApproxCurve::Geom2dConvert_ApproxCurve(const Handle(Adaptor2d_HCurve2d)& Curve,
const Standard_Real Tol2d,
const GeomAbs_Shape Order,
const Standard_Integer MaxSegments,
const Standard_Integer MaxDegree)
{
Approximate(Curve, Tol2d, Order, MaxSegments, MaxDegree);
}
void Geom2dConvert_ApproxCurve::Approximate(const Handle(Adaptor2d_HCurve2d)& theCurve,
const Standard_Real theTol2d,
const GeomAbs_Shape theOrder,
const Standard_Integer theMaxSegments,
const Standard_Integer theMaxDegree)
{
// Initialisation of input parameters of AdvApprox
Standard_Integer Num1DSS=0, Num2DSS=1, Num3DSS=0;
Handle(TColStd_HArray1OfReal) OneDTolNul, ThreeDTolNul;
Handle(TColStd_HArray1OfReal) TwoDTol = new TColStd_HArray1OfReal(1,Num2DSS);
TwoDTol->Init(Tol2d);
TwoDTol->Init(theTol2d);
Standard_Real First = Curve->FirstParameter();
Standard_Real Last = Curve->LastParameter();
Standard_Real First = theCurve->FirstParameter();
Standard_Real Last = theCurve->LastParameter();
Standard_Integer NbInterv_C2 = HCurve->NbIntervals(GeomAbs_C2);
Standard_Integer NbInterv_C2 = theCurve->NbIntervals(GeomAbs_C2);
TColStd_Array1OfReal CutPnts_C2(1, NbInterv_C2+1);
HCurve->Intervals(CutPnts_C2,GeomAbs_C2);
Standard_Integer NbInterv_C3 = HCurve->NbIntervals(GeomAbs_C3);
theCurve->Intervals(CutPnts_C2,GeomAbs_C2);
Standard_Integer NbInterv_C3 = theCurve->NbIntervals(GeomAbs_C3);
TColStd_Array1OfReal CutPnts_C3(1, NbInterv_C3+1);
HCurve->Intervals(CutPnts_C3,GeomAbs_C3);
theCurve->Intervals(CutPnts_C3,GeomAbs_C3);
AdvApprox_PrefAndRec CutTool(CutPnts_C2,CutPnts_C3);
myMaxError = 0;
Geom2dConvert_ApproxCurve_Eval ev (HCurve, First, Last);
Geom2dConvert_ApproxCurve_Eval ev (theCurve, First, Last);
AdvApprox_ApproxAFunction aApprox (Num1DSS, Num2DSS, Num3DSS,
OneDTolNul, TwoDTol, ThreeDTolNul,
First, Last, Order,
MaxDegree, MaxSegments,
First, Last, theOrder,
theMaxDegree, theMaxSegments,
ev, CutTool);
myIsDone = aApprox.IsDone();

3
src/GeomConvert/GeomConvert.cdl
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@ -56,7 +56,8 @@ uses Standard,
Geom,
Geom2d,
Convert,
AdvApp2Var
AdvApp2Var,
Adaptor3d
is

24
src/GeomConvert/GeomConvert_ApproxCurve.cdl
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@ -21,6 +21,7 @@ class ApproxCurve from GeomConvert
uses
Curve from Geom,
BSplineCurve from Geom,
HCurve from Adaptor3d,
Shape from GeomAbs,
OutOfRange from Standard
@ -43,6 +44,20 @@ is
-- - the highest degree MaxDeg which the
-- polynomial defining the BSpline curve may have.
Create (Curve: HCurve from Adaptor3d;
Tol3d: Real;
Order: Shape from GeomAbs;
MaxSegments: Integer;
MaxDegree: Integer) returns ApproxCurve;
---Purpose: Constructs a curve approximation framework defined by -
-- - the Curve,
-- - the tolerance value Tol3d,
-- - the degree of continuity Order,
-- - the maximum number of segments
-- MaxSegments allowed in the resulting BSpline curve, and
-- - the highest degree MaxDeg which the
-- polynomial defining the BSpline curve may have.
Curve(me) returns BSplineCurve from Geom;
--- Purpose: Returns the BSpline curve resulting from the approximation algorithm.
@ -63,8 +78,15 @@ is
Dump(me; o: in out OStream);
---Purpose: Print on the stream o information about the object
Approximate(me: in out;
theCurve: HCurve from Adaptor3d;
theTol3d: Real;
theOrder: Shape from GeomAbs;
theMaxSegments: Integer;
theMaxDegree: Integer) is private;
---Purpose: Converts a curve to B-spline
fields
myCurve : Curve from Geom;
myIsDone : Boolean from Standard;
myHasResult : Boolean from Standard;
myBSplCurve : BSplineCurve from Geom;

37
src/GeomConvert/GeomConvert_ApproxCurve.cxx
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@ -102,34 +102,47 @@ void GeomConvert_ApproxCurve_Eval::Evaluate (Standard_Integer *Dimension,
GeomConvert_ApproxCurve::GeomConvert_ApproxCurve(const Handle(Geom_Curve)& Curve,const Standard_Real Tol3d,const GeomAbs_Shape Order,const Standard_Integer MaxSegments,const Standard_Integer MaxDegree)
{
Handle(GeomAdaptor_HCurve) HCurve = new GeomAdaptor_HCurve (Curve);
Approximate(HCurve, Tol3d, Order, MaxSegments, MaxDegree);
}
GeomConvert_ApproxCurve::GeomConvert_ApproxCurve(const Handle(Adaptor3d_HCurve)& Curve,const Standard_Real Tol3d,const GeomAbs_Shape Order,const Standard_Integer MaxSegments,const Standard_Integer MaxDegree)
{
Approximate(Curve, Tol3d, Order, MaxSegments, MaxDegree);
}
void GeomConvert_ApproxCurve::Approximate(
const Handle(Adaptor3d_HCurve)& theCurve,
const Standard_Real theTol3d,
const GeomAbs_Shape theOrder,
const Standard_Integer theMaxSegments,
const Standard_Integer theMaxDegree)
{
// Initialisation of input parameters of AdvApprox
Standard_Integer Num1DSS=0, Num2DSS=0, Num3DSS=1;
Handle(TColStd_HArray1OfReal) OneDTolNul, TwoDTolNul;
Handle(TColStd_HArray1OfReal) ThreeDTol =
new TColStd_HArray1OfReal(1,Num3DSS);
ThreeDTol->Init(Tol3d);
Handle(TColStd_HArray1OfReal) ThreeDTol = new TColStd_HArray1OfReal(1,Num3DSS);
ThreeDTol->Init(theTol3d);
Standard_Real First = Curve->FirstParameter();
Standard_Real Last = Curve->LastParameter();
Standard_Real First = theCurve->FirstParameter();
Standard_Real Last = theCurve->LastParameter();
Standard_Integer NbInterv_C2 = HCurve->NbIntervals(GeomAbs_C2);
Standard_Integer NbInterv_C2 = theCurve->NbIntervals(GeomAbs_C2);
TColStd_Array1OfReal CutPnts_C2(1, NbInterv_C2+1);
HCurve->Intervals(CutPnts_C2,GeomAbs_C2);
Standard_Integer NbInterv_C3 = HCurve->NbIntervals(GeomAbs_C3);
theCurve->Intervals(CutPnts_C2,GeomAbs_C2);
Standard_Integer NbInterv_C3 = theCurve->NbIntervals(GeomAbs_C3);
TColStd_Array1OfReal CutPnts_C3(1, NbInterv_C3+1);
HCurve->Intervals(CutPnts_C3,GeomAbs_C3);
theCurve->Intervals(CutPnts_C3,GeomAbs_C3);
AdvApprox_PrefAndRec CutTool(CutPnts_C2,CutPnts_C3);
myMaxError = 0;
GeomConvert_ApproxCurve_Eval ev (HCurve, First, Last);
GeomConvert_ApproxCurve_Eval ev (theCurve, First, Last);
AdvApprox_ApproxAFunction aApprox (Num1DSS, Num2DSS, Num3DSS,
OneDTolNul, TwoDTolNul, ThreeDTol,
First, Last, Order,
MaxDegree, MaxSegments,
First, Last, theOrder,
theMaxDegree, theMaxSegments,
ev, CutTool);
myIsDone = aApprox.IsDone();

33
src/GeomConvert/GeomConvert_ApproxSurface.cdl
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@ -26,6 +26,7 @@ uses
Surface from Geom,
OffsetSurface from Geom,
BSplineSurface from Geom,
HSurface from Adaptor3d,
Shape from GeomAbs,
ApproxAFunc2Var from AdvApp2Var,
OutOfRange from Standard
@ -54,6 +55,26 @@ is
-- allowed in the resulting BSpline curve
-- - the index of precision PrecisCode.
Create(Surf: HSurface from Adaptor3d;
Tol3d: Real;
UContinuity: Shape from GeomAbs;
VContinuity: Shape from GeomAbs;
MaxDegU: Integer;
MaxDegV: Integer;
MaxSegments: Integer;
PrecisCode : Integer) returns ApproxSurface ;
---Purpose: Constructs a surface approximation framework defined by
-- - the Surf
-- - the tolerance value Tol3d
-- - the degree of continuity UContinuity, VContinuity
-- in the directions of the U and V parameters
-- - the highest degree MaxDegU, MaxDegV which
-- the polynomial defining the BSpline curve may
-- have in the directions of the U and V parameters
-- - the maximum number of segments MaxSegments
-- allowed in the resulting BSpline curve
-- - the index of precision PrecisCode.
Surface(me) returns BSplineSurface from Geom;
---Purpose: Returns the BSpline surface resulting from the approximation algorithm.
@ -76,9 +97,19 @@ is
Dump(me ; o : in out OStream);
---Purpose: Prints on the stream o informations on the current state of the object.
Approximate(me: in out;
theSurf: HSurface from Adaptor3d;
theTol3d: Real;
theUContinuity: Shape from GeomAbs;
theVContinuity: Shape from GeomAbs;
theMaxDegU: Integer;
theMaxDegV: Integer;
theMaxSegments: Integer;
thePrecisCode : Integer) is private;
---Purpose: Converts a surface to B-spline
fields
mySurf : Surface from Geom;
myIsDone : Boolean from Standard;
myHasResult: Boolean from Standard;
myBSplSurf : BSplineSurface from Geom;

76
src/GeomConvert/GeomConvert_ApproxSurface.cxx
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@ -294,64 +294,84 @@ GeomConvert_ApproxSurface::GeomConvert_ApproxSurface(const Handle(Geom_Surface)&
const Standard_Integer MaxSegments,
const Standard_Integer PrecisCode)
{
Standard_Real U0, U1, V0, V1;
Handle(Adaptor3d_HSurface) aSurfAdaptor = new GeomAdaptor_HSurface (Surf);
Surf->Bounds(U0, U1, V0, V1);
Approximate(aSurfAdaptor, Tol3d, UContinuity, VContinuity, MaxDegU, MaxDegV, MaxSegments, PrecisCode);
}
GeomConvert_ApproxSurface::GeomConvert_ApproxSurface(const Handle(Adaptor3d_HSurface)& Surf,
const Standard_Real Tol3d,
const GeomAbs_Shape UContinuity,
const GeomAbs_Shape VContinuity,
const Standard_Integer MaxDegU,
const Standard_Integer MaxDegV,
const Standard_Integer MaxSegments,
const Standard_Integer PrecisCode)
{
Approximate(Surf, Tol3d, UContinuity, VContinuity, MaxDegU, MaxDegV, MaxSegments, PrecisCode);
}
void GeomConvert_ApproxSurface::Approximate(const Handle(Adaptor3d_HSurface)& theSurf,
const Standard_Real theTol3d,
const GeomAbs_Shape theUContinuity,
const GeomAbs_Shape theVContinuity,
const Standard_Integer theMaxDegU,
const Standard_Integer theMaxDegV,
const Standard_Integer theMaxSegments,
const Standard_Integer thePrecisCode)
{
Standard_Real U0 = theSurf->FirstUParameter();
Standard_Real U1 = theSurf->LastUParameter();
Standard_Real V0 = theSurf->FirstVParameter();
Standard_Real V1 = theSurf->LastVParameter();
// " Init des nombres de sous-espaces et des tolerances"
Standard_Integer nb1 = 0, nb2 = 0, nb3 = 1;
Handle(TColStd_HArray1OfReal) nul1 =
new TColStd_HArray1OfReal(1,1);
Handle(TColStd_HArray1OfReal) nul1 = new TColStd_HArray1OfReal(1,1);
nul1->SetValue(1, 0.);
Handle(TColStd_HArray2OfReal) nul2 =
new TColStd_HArray2OfReal(1,1,1,4);
Handle(TColStd_HArray2OfReal) nul2 = new TColStd_HArray2OfReal(1,1,1,4);
nul2->SetValue(1, 1, 0.);
nul2->SetValue(1, 2, 0.);
nul2->SetValue(1, 3, 0.);
nul2->SetValue(1, 4, 0.);
Handle(TColStd_HArray1OfReal) eps3D =
new TColStd_HArray1OfReal(1,1);
eps3D->SetValue(1,Tol3d);
Handle(TColStd_HArray2OfReal) epsfr =
new TColStd_HArray2OfReal(1,1,1,4);
epsfr->SetValue(1,1,Tol3d);
epsfr->SetValue(1,2,Tol3d);
epsfr->SetValue(1,3,Tol3d);
epsfr->SetValue(1,4,Tol3d);
Handle(TColStd_HArray1OfReal) eps3D = new TColStd_HArray1OfReal(1,1);
eps3D->SetValue(1, theTol3d);
Handle(TColStd_HArray2OfReal) epsfr = new TColStd_HArray2OfReal(1,1,1,4);
epsfr->SetValue(1, 1, theTol3d);
epsfr->SetValue(1, 2, theTol3d);
epsfr->SetValue(1, 3, theTol3d);
epsfr->SetValue(1, 4, theTol3d);
// " Init du type d'iso"
GeomAbs_IsoType IsoType = GeomAbs_IsoV;
Standard_Integer NbDec;
NbDec = aSurfAdaptor->NbUIntervals(GeomAbs_C2);
NbDec = theSurf->NbUIntervals(GeomAbs_C2);
TColStd_Array1OfReal UDec_C2(1, NbDec+1);
aSurfAdaptor->UIntervals(UDec_C2, GeomAbs_C2);
NbDec = aSurfAdaptor->NbVIntervals(GeomAbs_C2);
theSurf->UIntervals(UDec_C2, GeomAbs_C2);
NbDec = theSurf->NbVIntervals(GeomAbs_C2);
TColStd_Array1OfReal VDec_C2(1, NbDec+1);
aSurfAdaptor->VIntervals(VDec_C2, GeomAbs_C2);
theSurf->VIntervals(VDec_C2, GeomAbs_C2);
NbDec = aSurfAdaptor->NbUIntervals(GeomAbs_C3);
NbDec = theSurf->NbUIntervals(GeomAbs_C3);
TColStd_Array1OfReal UDec_C3(1, NbDec+1);
aSurfAdaptor->UIntervals(UDec_C3, GeomAbs_C3);
theSurf->UIntervals(UDec_C3, GeomAbs_C3);
NbDec = aSurfAdaptor->NbVIntervals(GeomAbs_C3);
NbDec = theSurf->NbVIntervals(GeomAbs_C3);
TColStd_Array1OfReal VDec_C3(1, NbDec+1);
aSurfAdaptor->VIntervals(VDec_C3, GeomAbs_C3);
theSurf->VIntervals(VDec_C3, GeomAbs_C3);
// Approximation avec decoupe preferentiel
// aux lieux de discontinuitees C2
AdvApprox_PrefAndRec pUDec(UDec_C2,UDec_C3);
AdvApprox_PrefAndRec pVDec(VDec_C2,VDec_C3);
//POP pour WNT
GeomConvert_ApproxSurface_Eval ev (aSurfAdaptor);
GeomConvert_ApproxSurface_Eval ev (theSurf);
AdvApp2Var_ApproxAFunc2Var approx(nb1, nb2, nb3,
nul1,nul1,eps3D,
nul2,nul2,epsfr,
U0,U1,V0,V1,
IsoType,UContinuity,VContinuity,PrecisCode,
// MaxDegU,MaxDegV,MaxSegments,mySurfEval1,
MaxDegU,MaxDegV,MaxSegments,ev,
IsoType,theUContinuity,theVContinuity,thePrecisCode,
theMaxDegU,theMaxDegV,theMaxSegments,ev,
pUDec,pVDec);
myMaxError = approx.MaxError(3,1);