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f6b08ecf71
Subdivision of curve parametric interval based on deflection criteria is added for curve type OtherCurve in Extrema_GExtPC.gxx. Algorithm of subdivision is implemented in Extrema_Curve(2d)Tool.cxx New Draw command projpcurve for projection of point on CurveOnSurface is added in SWDRAW_ShapeAnalysis.cxx projpcurve is modified to reflect "start parameter" in usage message and Draw help.
142 lines
4.1 KiB
C++
142 lines
4.1 KiB
C++
// Created on: 1995-07-18
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// Created by: Modelistation
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// Copyright (c) 1995-1999 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 _Extrema_CurveTool_HeaderFile
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#define _Extrema_CurveTool_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Real.hxx>
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#include <GeomAbs_Shape.hxx>
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#include <Standard_Integer.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <TColStd_HArray1OfReal.hxx>
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#include <Standard_Boolean.hxx>
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#include <GeomAbs_CurveType.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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#include <gp_Lin.hxx>
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#include <gp_Circ.hxx>
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#include <gp_Elips.hxx>
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#include <gp_Hypr.hxx>
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#include <gp_Parab.hxx>
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class Adaptor3d_Curve;
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class gp_Pnt;
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class gp_Vec;
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class Geom_BezierCurve;
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class Geom_BSplineCurve;
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class Extrema_CurveTool
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{
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public:
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DEFINE_STANDARD_ALLOC
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static Standard_Real FirstParameter (const Adaptor3d_Curve& C);
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static Standard_Real LastParameter (const Adaptor3d_Curve& C);
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static GeomAbs_Shape Continuity (const Adaptor3d_Curve& C);
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//! Returns the number of intervals for continuity
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//! <S>. May be one if Continuity(me) >= <S>
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static Standard_Integer NbIntervals (Adaptor3d_Curve& C, const GeomAbs_Shape S);
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//! Stores in <T> the parameters bounding the intervals
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//! of continuity <S>.
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//!
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//! The array must provide enough room to accomodate
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//! for the parameters. i.e. T.Length() > NbIntervals()
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static void Intervals (Adaptor3d_Curve& C, TColStd_Array1OfReal& T, const GeomAbs_Shape S);
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//! Returns the parameters bounding the intervals of subdivision of curve
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//! according to Curvature deflection. Value of deflection is defined in method.
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//!
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Standard_EXPORT static Handle(TColStd_HArray1OfReal) DeflCurvIntervals(const Adaptor3d_Curve& C);
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Standard_EXPORT static Standard_Boolean IsPeriodic (const Adaptor3d_Curve& C);
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static Standard_Real Period (const Adaptor3d_Curve& C);
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static Standard_Real Resolution (const Adaptor3d_Curve& C, const Standard_Real R3d);
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static GeomAbs_CurveType GetType (const Adaptor3d_Curve& C);
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static gp_Pnt Value (const Adaptor3d_Curve& C, const Standard_Real U);
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static void D0 (const Adaptor3d_Curve& C, const Standard_Real U, gp_Pnt& P);
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static void D1 (const Adaptor3d_Curve& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V);
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static void D2 (const Adaptor3d_Curve& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2);
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static void D3 (const Adaptor3d_Curve& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3);
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static gp_Vec DN (const Adaptor3d_Curve& C, const Standard_Real U, const Standard_Integer N);
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static gp_Lin Line (const Adaptor3d_Curve& C);
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static gp_Circ Circle (const Adaptor3d_Curve& C);
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static gp_Elips Ellipse (const Adaptor3d_Curve& C);
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static gp_Hypr Hyperbola (const Adaptor3d_Curve& C);
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static gp_Parab Parabola (const Adaptor3d_Curve& C);
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static Standard_Integer Degree (const Adaptor3d_Curve& C);
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static Standard_Boolean IsRational (const Adaptor3d_Curve& C);
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static Standard_Integer NbPoles (const Adaptor3d_Curve& C);
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static Standard_Integer NbKnots (const Adaptor3d_Curve& C);
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static Handle(Geom_BezierCurve) Bezier (const Adaptor3d_Curve& C);
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static Handle(Geom_BSplineCurve) BSpline (const Adaptor3d_Curve& C);
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protected:
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private:
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};
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#include <Extrema_CurveTool.lxx>
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#endif // _Extrema_CurveTool_HeaderFile
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