289 lines
13 KiB
C++
289 lines
13 KiB
C++
// Created on: 1997-09-22
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// Created by: Roman BORISOV
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// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _ProjLib_CompProjectedCurve_HeaderFile
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#define _ProjLib_CompProjectedCurve_HeaderFile
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#include "Adaptor2d_Curve2d.hxx"
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#include "Adaptor3d_Surface.hxx"
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#include "ProjLib_HSequenceOfHSequenceOfPnt.hxx"
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#include "ProjLib_Projector.hxx"
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#include "TColGeom_HArray1OfCurve.hxx"
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#include "TColGeom2d_HArray1OfCurve.hxx"
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#include "TColgp_HArray1OfPnt.hxx"
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#include "TColgp_HArray1OfPnt2d.hxx"
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#include "TColStd_HArray1OfBoolean.hxx"
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#include "TColStd_HArray1OfReal.hxx"
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#include "Geom_Curve.hxx"
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#include "Geom2d_Curve.hxx"
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#include "GeomAbs_Shape.hxx"
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#include "TColStd_Array1OfReal.hxx"
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#include "GeomAbs_CurveType.hxx"
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class gp_Pnt2d;
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class gp_Vec2d;
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class ProjLib_CompProjectedCurve : public Adaptor2d_Curve2d
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{
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DEFINE_STANDARD_RTTIEXT(ProjLib_CompProjectedCurve, Adaptor2d_Curve2d)
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public:
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Standard_EXPORT ProjLib_CompProjectedCurve();
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//! try to find all solutions
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Standard_EXPORT ProjLib_CompProjectedCurve(const Handle(Adaptor3d_Surface)& S,
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const Handle(Adaptor3d_Curve)& C,
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const Standard_Real TolU,
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const Standard_Real TolV);
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//! this constructor tries to optimize the search using the
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//! assumption that maximum distance between surface and curve less or
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//! equal then MaxDist.
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//! if MaxDist < 0 then algorithm works as above.
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Standard_EXPORT ProjLib_CompProjectedCurve(const Handle(Adaptor3d_Surface)& S,
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const Handle(Adaptor3d_Curve)& C,
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const Standard_Real TolU,
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const Standard_Real TolV,
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const Standard_Real MaxDist);
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//! this constructor tries to optimize the search using the
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//! assumption that maximum distance between surface and curve less or
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//! equal then MaxDist.
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//! if MaxDist < 0 then algorithm try to find all solutions
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//! Tolerances of parameters are calculated automatically.
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Standard_EXPORT ProjLib_CompProjectedCurve(const Standard_Real Tol3d,
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const Handle(Adaptor3d_Surface)& S,
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const Handle(Adaptor3d_Curve)& C,
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const Standard_Real MaxDist = -1.0);
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//! Shallow copy of adaptor
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Standard_EXPORT virtual Handle(Adaptor2d_Curve2d) ShallowCopy() const Standard_OVERRIDE;
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//! computes a set of projected point and determine the
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//! continuous parts of the projected curves. The points
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//! corresponding to a projection on the bounds of the surface are
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//! included in this set of points.
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Standard_EXPORT void Init();
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//! Performs projecting for given curve.
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//! If projecting uses approximation,
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//! approximation parameters can be set before by corresponding methods
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//! SetTol3d(...), SeContinuity(...), SetMaxDegree(...), SetMaxSeg(...)
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Standard_EXPORT void Perform();
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//! Set the parameter, which defines 3d tolerance of approximation.
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Standard_EXPORT void SetTol3d(const Standard_Real theTol3d);
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//! Set the parameter, which defines curve continuity.
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//! Default value is GeomAbs_C2;
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Standard_EXPORT void SetContinuity(const GeomAbs_Shape theContinuity);
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//! Set max possible degree of result BSpline curve2d, which is got by approximation.
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//! If MaxDegree < 0, algorithm uses values that are chosen depending of types curve 3d
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//! and surface.
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Standard_EXPORT void SetMaxDegree(const Standard_Integer theMaxDegree);
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//! Set the parameter, which defines maximal value of parametric intervals the projected
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//! curve can be cut for approximation. If MaxSeg < 0, algorithm uses default
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//! value = 16.
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Standard_EXPORT void SetMaxSeg(const Standard_Integer theMaxSeg);
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//! Set the parameter, which defines necessity of 2d results.
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Standard_EXPORT void SetProj2d(const Standard_Boolean theProj2d);
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//! Set the parameter, which defines necessity of 3d results.
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Standard_EXPORT void SetProj3d(const Standard_Boolean theProj3d);
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//! Changes the surface.
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Standard_EXPORT void Load(const Handle(Adaptor3d_Surface)& S);
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//! Changes the curve.
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Standard_EXPORT void Load(const Handle(Adaptor3d_Curve)& C);
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Standard_EXPORT const Handle(Adaptor3d_Surface)& GetSurface() const;
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Standard_EXPORT const Handle(Adaptor3d_Curve)& GetCurve() const;
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Standard_EXPORT void GetTolerance(Standard_Real& TolU, Standard_Real& TolV) const;
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//! returns the number of continuous part of the projected curve
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Standard_EXPORT Standard_Integer NbCurves() const;
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//! returns the bounds of the continuous part corresponding to Index
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Standard_EXPORT void Bounds(const Standard_Integer Index,
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Standard_Real& Udeb,
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Standard_Real& Ufin) const;
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//! returns True if part of projection with number Index is a single point and writes
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//! its coordinates in P
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Standard_EXPORT Standard_Boolean IsSinglePnt(const Standard_Integer Index, gp_Pnt2d& P) const;
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//! returns True if part of projection with number Index is an u-isoparametric curve of
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//! input surface
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Standard_EXPORT Standard_Boolean IsUIso(const Standard_Integer Index, Standard_Real& U) const;
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//! returns True if part of projection with number Index is an v-isoparametric curve of
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//! input surface
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Standard_EXPORT Standard_Boolean IsVIso(const Standard_Integer Index, Standard_Real& V) const;
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//! Computes the point of parameter U on the curve.
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Standard_EXPORT gp_Pnt2d Value(const Standard_Real U) const Standard_OVERRIDE;
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//! Computes the point of parameter U on the curve.
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Standard_EXPORT void D0(const Standard_Real U, gp_Pnt2d& P) const Standard_OVERRIDE;
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//! Computes the point of parameter U on the curve with its
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//! first derivative.
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//! Raised if the continuity of the current interval
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//! is not C1.
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Standard_EXPORT void D1(const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V) const Standard_OVERRIDE;
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//! Returns the point P of parameter U, the first and second
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//! derivatives V1 and V2.
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//! Raised if the continuity of the current interval
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//! is not C2.
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Standard_EXPORT void D2(const Standard_Real U,
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gp_Pnt2d& P,
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gp_Vec2d& V1,
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gp_Vec2d& V2) const Standard_OVERRIDE;
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//! The returned vector gives the value of the derivative for the
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//! order of derivation N.
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//! Raised if N < 1.
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//! Raised if N > 2.
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Standard_EXPORT gp_Vec2d DN(const Standard_Real U,
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const Standard_Integer N) const Standard_OVERRIDE;
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//! Returns the first parameter of the curve C
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//! which has a projection on S.
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Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
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//! Returns the last parameter of the curve C
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//! which has a projection on S.
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Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
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//! Returns the Continuity used in the approximation.
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Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
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//! Returns the number of intervals which define
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//! an S continuous part of the projected curve
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Standard_EXPORT Standard_Integer NbIntervals(const GeomAbs_Shape S) const Standard_OVERRIDE;
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//! Returns a curve equivalent of <me> between
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//! parameters <First> and <Last>. <Tol> is used to
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//! test for 2d points confusion.
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//! If <First> >= <Last>
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Standard_EXPORT Handle(Adaptor2d_Curve2d) Trim(const Standard_Real FirstParam,
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const Standard_Real LastParam,
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const Standard_Real Tol) const Standard_OVERRIDE;
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//! Returns the parameters corresponding to
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//! S discontinuities.
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//!
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//! The array must provide enough room to accommodate
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//! for the parameters. i.e. T.Length() > NbIntervals()
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Standard_EXPORT void Intervals(TColStd_Array1OfReal& T,
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const GeomAbs_Shape S) const Standard_OVERRIDE;
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//! returns the maximum distance between
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//! curve to project and surface
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Standard_EXPORT Standard_Real MaxDistance(const Standard_Integer Index) const;
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Standard_EXPORT const Handle(ProjLib_HSequenceOfHSequenceOfPnt)& GetSequence() const;
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//! Returns the type of the curve in the current
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//! interval : Line, Circle, Ellipse, Hyperbola,
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//! Parabola, BezierCurve, BSplineCurve, OtherCurve.
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Standard_EXPORT GeomAbs_CurveType GetType() const Standard_OVERRIDE;
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//! Returns true if result of projecting of the curve interval
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//! with number Index is point.
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Standard_EXPORT Standard_Boolean ResultIsPoint(const Standard_Integer theIndex) const;
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//! Returns the error of approximation of U parameter 2d-curve as a result
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//! projecting of the curve interval with number Index.
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Standard_EXPORT Standard_Real GetResult2dUApproxError(const Standard_Integer theIndex) const;
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//! Returns the error of approximation of V parameter 2d-curve as a result
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//! projecting of the curve interval with number Index.
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Standard_EXPORT Standard_Real GetResult2dVApproxError(const Standard_Integer theIndex) const;
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//! Returns the error of approximation of 3d-curve as a result
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//! projecting of the curve interval with number Index.
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Standard_EXPORT Standard_Real GetResult3dApproxError(const Standard_Integer theIndex) const;
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//! Returns the resulting 2d-curve of projecting
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//! of the curve interval with number Index.
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Standard_EXPORT Handle(Geom2d_Curve) GetResult2dC(const Standard_Integer theIndex) const;
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//! Returns the resulting 3d-curve of projecting
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//! of the curve interval with number Index.
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Standard_EXPORT Handle(Geom_Curve) GetResult3dC(const Standard_Integer theIndex) const;
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//! Returns the resulting 2d-point of projecting
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//! of the curve interval with number Index.
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Standard_EXPORT gp_Pnt2d GetResult2dP(const Standard_Integer theIndex) const;
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//! Returns the resulting 3d-point of projecting
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//! of the curve interval with number Index.
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Standard_EXPORT gp_Pnt GetResult3dP(const Standard_Integer theIndex) const;
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//! Returns the parameter, which defines necessity of only 2d results.
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Standard_Boolean GetProj2d() const { return myProj2d; }
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//! Returns the parameter, which defines necessity of only 3d results.
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Standard_Boolean GetProj3d() const { return myProj3d; }
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private:
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//! This method performs check possibility of optimization traps and tries to go out from them.
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//@return thePoint - input / corrected point.
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Standard_EXPORT void UpdateTripleByTrapCriteria(gp_Pnt& thePoint) const;
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Standard_EXPORT void BuildIntervals(const GeomAbs_Shape S) const;
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private:
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Handle(Adaptor3d_Surface) mySurface;
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Handle(Adaptor3d_Curve) myCurve;
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Standard_Integer myNbCurves;
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Handle(ProjLib_HSequenceOfHSequenceOfPnt) mySequence;
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Handle(TColStd_HArray1OfBoolean) myUIso;
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Handle(TColStd_HArray1OfBoolean) myVIso;
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Handle(TColStd_HArray1OfBoolean) mySnglPnts;
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Handle(TColStd_HArray1OfReal) myMaxDistance;
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Handle(TColStd_HArray1OfReal) myTabInt;
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Standard_Real myTol3d;
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GeomAbs_Shape myContinuity;
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Standard_Integer myMaxDegree;
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Standard_Integer myMaxSeg;
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Standard_Boolean myProj2d;
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Standard_Boolean myProj3d;
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Standard_Real myMaxDist;
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Standard_Real myTolU;
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Standard_Real myTolV;
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Handle(TColStd_HArray1OfBoolean) myResultIsPoint;
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Handle(TColStd_HArray1OfReal) myResult2dUApproxError;
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Handle(TColStd_HArray1OfReal) myResult2dVApproxError;
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Handle(TColStd_HArray1OfReal) myResult3dApproxError;
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Handle(TColgp_HArray1OfPnt) myResult3dPoint;
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Handle(TColgp_HArray1OfPnt2d) myResult2dPoint;
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Handle(TColGeom_HArray1OfCurve) myResult3dCurve;
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Handle(TColGeom2d_HArray1OfCurve) myResult2dCurve;
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};
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DEFINE_STANDARD_HANDLE(ProjLib_CompProjectedCurve, Adaptor2d_Curve2d)
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#endif // _ProjLib_CompProjectedCurve_HeaderFile
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