OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-26 10:19:45 +03:00
Code
occt/src/ShapeConstruct/ShapeConstruct_ProjectCurveOnSurface.hxx
luz paz 316ea29318 0031939: Coding - correction of spelling errors in comments [part 10] 
Fix various typos via codespell.
2021-04-22 14:50:47 +03:00

241 lines
12 KiB
C++
Raw Blame History

// Created on: 1998-07-14
// Created by: data exchange team
// Copyright (c) 1998-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _ShapeConstruct_ProjectCurveOnSurface_HeaderFile
#define _ShapeConstruct_ProjectCurveOnSurface_HeaderFile
#include <Standard.hxx>
#include <Standard_Type.hxx>
#include <Standard_Real.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Integer.hxx>
#include <gp_Pnt.hxx>
#include <gp_Pnt2d.hxx>
#include <Standard_Transient.hxx>
#include <ShapeExtend_Status.hxx>
#include <GeomAbs_Shape.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColgp_HArray1OfPnt2d.hxx>
#include <TColgp_HArray1OfPnt.hxx>
#include <TColgp_SequenceOfPnt.hxx>
#include <TColgp_SequenceOfPnt2d.hxx>
#include <TColStd_SequenceOfReal.hxx>
class ShapeAnalysis_Surface;
class Geom_Surface;
class Geom_Curve;
class Geom2d_Curve;
// resolve name collisions with X11 headers
#ifdef Status
#undef Status
#endif
class ShapeConstruct_ProjectCurveOnSurface;
DEFINE_STANDARD_HANDLE(ShapeConstruct_ProjectCurveOnSurface, Standard_Transient)
//! This tool provides a method for computing pcurve by projecting
//! 3d curve onto a surface.
//! Projection is done by 23 or more points (this number is changed
//! for B-Splines according to the following rule:
//! the total number of the points is not less than number of spans *
//! (degree + 1);
//! it is increased recursively starting with 23 and is added with 22
//! until the condition is fulfilled).
//! Isoparametric cases (if curve corresponds to U=const or V=const on
//! the surface) are recognized with the given precision.
class ShapeConstruct_ProjectCurveOnSurface : public Standard_Transient
{
public:
//! Empty constructor.
Standard_EXPORT ShapeConstruct_ProjectCurveOnSurface();
//! Initializes the object with all necessary parameters,
//! i.e. surface and precision
Standard_EXPORT virtual void Init (const Handle(Geom_Surface)& surf, const Standard_Real preci);
//! Initializes the object with all necessary parameters,
//! i.e. surface and precision
Standard_EXPORT virtual void Init (const Handle(ShapeAnalysis_Surface)& surf, const Standard_Real preci);
//! Loads a surface (in the form of Geom_Surface) to project on
Standard_EXPORT void SetSurface (const Handle(Geom_Surface)& surf);
//! Loads a surface (in the form of ShapeAnalysis_Surface) to project on
Standard_EXPORT void SetSurface (const Handle(ShapeAnalysis_Surface)& surf);
//! Sets value for current precision
Standard_EXPORT void SetPrecision (const Standard_Real preci);
//! Returns (modifiable) the build-curve-3d mode, by default False
//! If True, if the projected curve has been recomputed by
//! interpolation, the 3d curve is also rebuild by interpolation
Standard_EXPORT Standard_Boolean& BuildCurveMode();
//! Returns (modifiable) the flag specifying to which side of
//! parametrical space adjust part of pcurve which lies on seam.
//! This is required in very rare case when 3d curve which is
//! to be projected goes partly along the seam on the closed
//! surface with singularity (e.g. sphere), goes through the
//! degenerated point and paerly lies on internal area of surface.
//!
//! If this flag is True, the seam part of such curve will be
//! adjusted to the left side of parametric space (on sphere U=0),
//! else to the right side (on sphere U=2*PI)
//! Default value is True
Standard_EXPORT Standard_Integer& AdjustOverDegenMode();
//! Returns the status of last Perform
Standard_EXPORT Standard_Boolean Status (const ShapeExtend_Status theStatus) const;
//! Computes the projection of 3d curve onto a surface using the
//! specialized algorithm. Returns False if projector fails,
//! otherwise, if pcurve computed successfully, returns True.
//! The output curve 2D is guaranteed to be same-parameter
//! with input curve 3D on the interval [First, Last]. If the output curve
//! lies on a direct line the infinite line is returned, in the case
//! same-parameter condition is satisfied.
//! TolFirst and TolLast are the tolerances at the ends of input curve 3D.
Standard_EXPORT virtual Standard_Boolean Perform (Handle(Geom_Curve)& c3d,
const Standard_Real First,
const Standard_Real Last,
Handle(Geom2d_Curve)& c2d,
const Standard_Real TolFirst = -1,
const Standard_Real TolLast = -1);
//! Computes the projection of 3d curve onto a surface using the
//! standard algorithm from ProjLib. Returns False if standard
//! projector fails or raises an exception or cuts the curve by
//! parametrical bounds of the surface. Else, if pcurve computed
//! successfully, returns True.
//! The continuity, maxdeg and nbinterval are parameters of call
//! to Approx_CurveOnSurface. If nbinterval is equal to -1
//! (default), this value is computed depending on source 3d curve
//! and surface.
Standard_EXPORT Standard_Boolean PerformByProjLib (Handle(Geom_Curve)& c3d,
const Standard_Real First,
const Standard_Real Last,
Handle(Geom2d_Curve)& c2d,
const GeomAbs_Shape continuity = GeomAbs_C1,
const Standard_Integer maxdeg = 12,
const Standard_Integer nbinterval = -1);
DEFINE_STANDARD_RTTIEXT(ShapeConstruct_ProjectCurveOnSurface,Standard_Transient)
protected:
//! Try to approximate 3D curve by Geom2d_Line
//! or Geom2d_BsplineCurve with degree 1 with specified tolerance.
//! points - points obtained from 3d curve.
//! params - parameters corresponding points on 3d curves
//! points2d - 2d points lies on line in parametric space
//! theTol - tolerance used for compare initial points 3d and
//! 3d points obtained from line lying in parameric space of surface
Standard_EXPORT Handle(Geom2d_Curve) getLine (const TColgp_SequenceOfPnt& points,
const TColStd_SequenceOfReal& params,
TColgp_SequenceOfPnt2d& points2d,
const Standard_Real theTol,
Standard_Boolean& IsRecompute,
Standard_Boolean &isFromCashe) const;
Handle(ShapeAnalysis_Surface) mySurf;
Standard_Real myPreci;
Standard_Boolean myBuild;
Standard_Integer myStatus;
Standard_Integer myAdjustOverDegen;
Standard_Integer myNbCashe;
gp_Pnt myCashe3d[2];
gp_Pnt2d myCashe2d[2];
private:
Standard_EXPORT Handle(Geom2d_Curve) ProjectAnalytic (const Handle(Geom_Curve)& c3d) const;
Standard_EXPORT Standard_Boolean ApproxPCurve (const Standard_Integer nbrPnt,
const Handle(Geom_Curve)& c3d,
const Standard_Real TolFirst,
const Standard_Real TolLast,
TColgp_SequenceOfPnt& points,
TColStd_SequenceOfReal& params,
TColgp_SequenceOfPnt2d& points2d,
Handle(Geom2d_Curve)& c2d);
Standard_EXPORT void 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_EXPORT void 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_EXPORT Handle(Geom2d_Curve) InterpolatePCurve (const Standard_Integer nbrPnt,
Handle(TColgp_HArray1OfPnt2d)& points2d,
Handle(TColStd_HArray1OfReal)& params,
const Handle(Geom_Curve)& orig) const;
Standard_EXPORT Handle(Geom2d_Curve) ApproximatePCurve (const Standard_Integer nbrPnt, Handle(TColgp_HArray1OfPnt2d)& points2d, Handle(TColStd_HArray1OfReal)& params, const Handle(Geom_Curve)& orig) const;
Standard_EXPORT Handle(Geom_Curve) InterpolateCurve3d (const Standard_Integer nbrPnt, Handle(TColgp_HArray1OfPnt)& points, Handle(TColStd_HArray1OfReal)& params, const Handle(Geom_Curve)& orig) const;
Standard_EXPORT void CheckPoints (Handle(TColgp_HArray1OfPnt)& points, Handle(TColStd_HArray1OfReal)& params, Standard_Real& preci) const;
Standard_EXPORT void CheckPoints2d (Handle(TColgp_HArray1OfPnt2d)& points, Handle(TColStd_HArray1OfReal)& params, Standard_Real& preci) const;
Standard_EXPORT Standard_Boolean IsAnIsoparametric (const Standard_Integer nbrPnt,
const TColgp_SequenceOfPnt& points,
const TColStd_SequenceOfReal& params,
Standard_Boolean& isoTypeU,
Standard_Boolean& p1OnIso,
gp_Pnt2d& valueP1,
Standard_Boolean& p2OnIso,
gp_Pnt2d& valueP2,
Standard_Boolean& isoPar2d3d,
Handle(Geom_Curve)& cIso,
Standard_Real& t1,
Standard_Real& t2,
TColStd_Array1OfReal& pout) const;
};
#endif // _ShapeConstruct_ProjectCurveOnSurface_HeaderFile
View Git Blame Copy Permalink