include/opencascade/GeomBndLib_SurfaceOfExtrusion.hxx

0001 // Copyright (c) 2025 OPEN CASCADE SAS
0002 //
0003 // This file is part of Open CASCADE Technology software library.
0004 //
0005 // This library is free software; you can redistribute it and/or modify it under
0006 // the terms of the GNU Lesser General Public License version 2.1 as published
0007 // by the Free Software Foundation, with special exception defined in the file
0008 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0009 // distribution for complete text of the license and disclaimer of any warranty.
0010 //
0011 // Alternatively, this file may be used under the terms of Open CASCADE
0012 // commercial license or contractual agreement.
0013
0014 #ifndef GeomBndLib_SurfaceOfExtrusion_HeaderFile
0015 #define GeomBndLib_SurfaceOfExtrusion_HeaderFile
0016
0017 #include <Bnd_Box.hxx>
0018 #include <Geom_SurfaceOfLinearExtrusion.hxx>
0019 #include <Standard.hxx>
0020 #include <Standard_DefineAlloc.hxx>
0021
0022 //! Computes bounding box for a surface of linear extrusion (Geom_SurfaceOfLinearExtrusion).
0023 //! Uses pure analytical approach: P(U, V) = BasisCurve(U) + V * Direction,
0024 //! so the box is computed from the basis curve box extended along the direction.
0025 class GeomBndLib_SurfaceOfExtrusion
0026 {
0027 public:
0028   DEFINE_STANDARD_ALLOC
0029
0030   GeomBndLib_SurfaceOfExtrusion(const occ::handle<Geom_SurfaceOfLinearExtrusion>& theSurf)
0031       : myGeom(theSurf)
0032   {
0033   }
0034
0035   GeomBndLib_SurfaceOfExtrusion(const GeomBndLib_SurfaceOfExtrusion&)            = delete;
0036   GeomBndLib_SurfaceOfExtrusion& operator=(const GeomBndLib_SurfaceOfExtrusion&) = delete;
0037   GeomBndLib_SurfaceOfExtrusion(GeomBndLib_SurfaceOfExtrusion&&)                 = delete;
0038   GeomBndLib_SurfaceOfExtrusion& operator=(GeomBndLib_SurfaceOfExtrusion&&)      = delete;
0039
0040   const occ::handle<Geom_SurfaceOfLinearExtrusion>& Geometry() const { return myGeom; }
0041
0042   //! Compute bounding box for full surface.
0043   [[nodiscard]] Standard_EXPORT Bnd_Box Box(double theTol) const;
0044
0045   //! Compute bounding box for surface patch [theUMin, theUMax] x [theVMin, theVMax].
0046   [[nodiscard]] Standard_EXPORT Bnd_Box
0047     Box(double theUMin, double theUMax, double theVMin, double theVMax, double theTol) const;
0048
0049   //! Compute precise bounding box using tight basis curve bounds.
0050   [[nodiscard]] Standard_EXPORT Bnd_Box
0051     BoxOptimal(double theUMin, double theUMax, double theVMin, double theVMax, double theTol) const;
0052
0053   //! Compute precise bounding box for full surface.
0054   [[nodiscard]] Bnd_Box BoxOptimal(double theTol) const
0055   {
0056     double aU1 = 0., aU2 = 0., aV1 = 0., aV2 = 0.;
0057     myGeom->Bounds(aU1, aU2, aV1, aV2);
0058     return BoxOptimal(aU1, aU2, aV1, aV2, theTol);
0059   }
0060
0061 private:
0062   occ::handle<Geom_SurfaceOfLinearExtrusion> myGeom;
0063 };
0064
0065 #endif // GeomBndLib_SurfaceOfExtrusion_HeaderFile