1 // Created on: 2019-02-25 2 // Created by: Artem NOVIKOV 3 // Copyright (c) 2019 OPEN CASCADE SAS 4 // 5 // This file is part of Open CASCADE Technology software library. 6 // 7 // This library is free software; you can redistribute it and/or modify it under 8 // the terms of the GNU Lesser General Public License version 2.1 as published 9 // by the Free Software Foundation, with special exception defined in the file 10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 11 // distribution for complete text of the license and disclaimer of any warranty. 12 // 13 // Alternatively, this file may be used under the terms of Open CASCADE 14 // commercial license or contractual agreement. 15 16 #ifndef _Prs3d_ToolSector_HeaderFile 17 #define _Prs3d_ToolSector_HeaderFile 18 19 #include <Prs3d_ToolQuadric.hxx> 20 21 //! Standard presentation algorithm that outputs graphical primitives for disk surface. 22 class Prs3d_ToolSector : public Prs3d_ToolQuadric 23 { 24 public: 25 26 //! Generate primitives for 3D quadric surface. 27 //! @param theRadius [in] sector radius 28 //! @param theNbSlices [in] number of slices within U parameter 29 //! @param theNbStacks [in] number of stacks within V parameter 30 //! @param theTrsf [in] optional transformation to apply 31 //! @return generated triangulation 32 Standard_EXPORT static Handle(Graphic3d_ArrayOfTriangles) Create (const Standard_Real theRadius, 33 const Standard_Integer theNbSlices, 34 const Standard_Integer theNbStacks, 35 const gp_Trsf& theTrsf); 36 public: 37 38 //! Initializes the algorithm creating a sector (quadrant). 39 //! @param theRadius [in] sector radius 40 //! @param theNbSlices [in] number of slices within U parameter 41 //! @param theNbStacks [in] number of stacks within V parameter 42 Standard_EXPORT Prs3d_ToolSector (const Standard_Real theRadius, 43 const Standard_Integer theNbSlices, 44 const Standard_Integer theNbStacks); 45 protected: 46 47 //! Computes vertex at given parameter location of the surface. 48 Standard_EXPORT virtual gp_Pnt Vertex (const Standard_Real theU, const Standard_Real theV) const Standard_OVERRIDE; 49 50 //! Computes normal at given parameter location of the surface. Normal(const Standard_Real,const Standard_Real) const51 virtual gp_Dir Normal (const Standard_Real , const Standard_Real ) const Standard_OVERRIDE 52 { 53 return gp_Dir (0.0, 0.0, -1.0); 54 } 55 56 protected: 57 58 Standard_Real myRadius; //!< sector radius 59 60 }; 61 62 #endif 63