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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
119 lines
4.6 KiB
C++
119 lines
4.6 KiB
C++
// Created on: 1994-09-01
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// Created by: Christian CAILLET
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// Copyright (c) 1994-1999 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 _IGESConvGeom_HeaderFile
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#define _IGESConvGeom_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_Integer.hxx>
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#include <Standard_Real.hxx>
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class IGESGeom_SplineCurve;
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class Geom_BSplineCurve;
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class Geom2d_BSplineCurve;
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class IGESGeom_SplineSurface;
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class Geom_BSplineSurface;
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class IGESConvGeom_GeomBuilder;
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//! This package is intended to gather geometric conversion which
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//! are not immediate but can be used for several purposes :
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//! mainly, standard conversion to and from CasCade geometric and
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//! topologic data, and adaptations of IGES files as required
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//! (as replacing Spline entities to BSpline equivalents).
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class IGESConvGeom
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! basic tool to build curves from IGESGeom (arrays of points,
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//! Transformations, evaluation of points in a datum)
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//! Converts a SplineCurve from IGES to a BSplineCurve from CasCade
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//! <epscoef> gives tolerance to consider coefficient to be nul
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//! <epsgeom> gives tolerance to consider poles to be equal
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//! The returned value is a status with these possible values :
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//! - 0 OK, done
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//! - 1 the result is not guaranteed to be C0 (with <epsgeom>)
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//! - 2 SplineType not processed (allowed : max 3)
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//! (no result produced)
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//! - 3 error during creation of control points
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//! (no result produced)
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//! - 4 polynomial equation is not correct (no result produced)
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//! - 5 less than one segment (no result produced)
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Standard_EXPORT static Standard_Integer SplineCurveFromIGES (const Handle(IGESGeom_SplineCurve)& igesent, const Standard_Real epscoef, const Standard_Real epsgeom, Handle(Geom_BSplineCurve)& result);
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//! Tries to increase curve continuity with tolerance <epsgeom>
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//! <continuity> is the new desired continuity, can be 1 or 2
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//! (more than 2 is considered as 2).
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//! Returns the new maximum continuity obtained on all knots.
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//! Remark that, for instance with <continuity> = 2, even if not
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//! all the knots can be passed to C2, all knots which can be are.
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Standard_EXPORT static Standard_Integer IncreaseCurveContinuity (const Handle(Geom_BSplineCurve)& curve, const Standard_Real epsgeom, const Standard_Integer continuity = 2);
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Standard_EXPORT static Standard_Integer IncreaseCurveContinuity (const Handle(Geom2d_BSplineCurve)& curve, const Standard_Real epsgeom, const Standard_Integer continuity = 2);
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//! Converts a SplineSurface from IGES to a BSplineSurface from CasCade
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//! <epscoef> gives tolerance to consider coefficient to be nul
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//! <epsgeom> gives tolerance to consider poles to be equal
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//! The returned value is a status with these possible values :
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//! - 0 OK, done
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//! - 1 the result is not guaranteed to be C0 (with <epsgeom>)
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//! - 2 degree is not compatible with code boundary type
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//! (warning) but C0 is OK
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//! - 3 idem but C0 is not guaranteed (warning)
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//! - 4 degree has been determined to be nul, either in U or V
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//! (no result produced)
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//! - 5 less than one segment in U or V (no result produced)
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Standard_EXPORT static Standard_Integer SplineSurfaceFromIGES (const Handle(IGESGeom_SplineSurface)& igesent, const Standard_Real epscoef, const Standard_Real epsgeom, Handle(Geom_BSplineSurface)& result);
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//! Tries to increase Surface continuity with tolerance <epsgeom>
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//! <continuity> is the new desired continuity, can be 1 or 2
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//! (more than 2 is considered as 2).
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//! Returns the new maximum continuity obtained on all knots.
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//! Remark that, for instance with <continuity> = 2, even if not
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//! all the knots can be passed to C2, all knots which can be are.
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Standard_EXPORT static Standard_Integer IncreaseSurfaceContinuity (const Handle(Geom_BSplineSurface)& surface, const Standard_Real epsgeom, const Standard_Integer continuity = 2);
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protected:
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private:
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friend class IGESConvGeom_GeomBuilder;
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};
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#endif // _IGESConvGeom_HeaderFile
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