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c22b52d60e
Adaptor2d_Curve2d, Adaptor3d_Curve and Adaptor3d_Surface now inherit Standard_Transient. Interfaces Adaptor2d_HCurve2d, Adaptor3d_HCurve, Adaptor3d_HSurface and their subclasses are now aliases to Adaptor2d_Curve2d, Adaptor3d_Curve and Adaptor3d_Surface. Removed numerous unsafe reinterpret casts. Generic classes Adaptor3d_GenHCurve, Adaptor3d_GenHSurface, Adaptor2d_GenHCurve2d have been removed. Several redundant .lxx files have been merged into .hxx. Removed obsolete adaptor classes with H suffix.
114 lines
4.3 KiB
C++
114 lines
4.3 KiB
C++
// Created on: 1997-08-26
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// Created by: Stepan MISHIN
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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 _GeomConvert_ApproxSurface_HeaderFile
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#define _GeomConvert_ApproxSurface_HeaderFile
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#include <Adaptor3d_Surface.hxx>
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#include <GeomAbs_Shape.hxx>
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#include <Standard_OStream.hxx>
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class Geom_BSplineSurface;
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class Geom_Surface;
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//! A framework to convert a surface to a BSpline
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//! surface. This is done by approximation to a BSpline
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//! surface within a given tolerance.
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class GeomConvert_ApproxSurface
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Constructs a surface approximation framework defined by
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//! - the conic Surf
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//! - the tolerance value Tol3d
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//! - the degree of continuity UContinuity, VContinuity
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//! in the directions of the U and V parameters
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//! - the highest degree MaxDegU, MaxDegV which
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//! the polynomial defining the BSpline curve may
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//! have in the directions of the U and V parameters
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//! - the maximum number of segments MaxSegments
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//! allowed in the resulting BSpline curve
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//! - the index of precision PrecisCode.
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Standard_EXPORT GeomConvert_ApproxSurface(const Handle(Geom_Surface)& 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);
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//! Constructs a surface approximation framework defined by
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//! - the Surf
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//! - the tolerance value Tol3d
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//! - the degree of continuity UContinuity, VContinuity
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//! in the directions of the U and V parameters
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//! - the highest degree MaxDegU, MaxDegV which
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//! the polynomial defining the BSpline curve may
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//! have in the directions of the U and V parameters
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//! - the maximum number of segments MaxSegments
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//! allowed in the resulting BSpline curve
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//! - the index of precision PrecisCode.
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Standard_EXPORT GeomConvert_ApproxSurface(const Handle(Adaptor3d_Surface)& 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);
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//! Returns the BSpline surface resulting from the approximation algorithm.
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Standard_EXPORT Handle(Geom_BSplineSurface) Surface() const;
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//! Returns Standard_True if the approximation has be done
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Standard_EXPORT Standard_Boolean IsDone() const;
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//! Returns true if the approximation did come out with a result that
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//! is not NECESSARILY within the required tolerance or a result
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//! that is not recognized with the wished continuities.
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Standard_EXPORT Standard_Boolean HasResult() const;
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//! Returns the greatest distance between a point on the
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//! source conic surface and the BSpline surface
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//! resulting from the approximation (>0 when an approximation
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//! has been done, 0 if no approximation )
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Standard_EXPORT Standard_Real MaxError() const;
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//! Prints on the stream o information on the current state of the object.
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Standard_EXPORT void Dump (Standard_OStream& o) const;
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protected:
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private:
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//! Converts a surface to B-spline
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Standard_EXPORT void Approximate (const Handle(Adaptor3d_Surface)& 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);
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Standard_Boolean myIsDone;
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Standard_Boolean myHasResult;
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Handle(Geom_BSplineSurface) myBSplSurf;
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Standard_Real myMaxError;
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};
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#endif // _GeomConvert_ApproxSurface_HeaderFile
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