/usr/include/oce/OpenGl_Quadric.hxx is in liboce-visualization-dev 0.18.2-2build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | // Created on: 2014-10-15
// Created by: Denis Bogolepov
// Copyright (c) 2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef OpenGl_Quadric_Header
#define OpenGl_Quadric_Header
#include <OpenGl_PrimitiveArray.hxx>
//! Class for rendering of arbitrary primitive array.
//! Tool class for generating tessellation of quadric surface.
class OpenGl_Quadric : public OpenGl_PrimitiveArray
{
public:
//! Creates undefined abstract quadric surface
Standard_EXPORT OpenGl_Quadric();
//! Returns true if quadric has been defined
Standard_Boolean IsDefined() const { return myNbSlices != 0; }
//! Returns number of slices
Standard_Integer NbSlices() const { return myNbSlices; }
//! Returns number of stacks
Standard_Integer NbStacks() const { return myNbStacks; }
//! Returns total number of vertices
Standard_Integer NbVertices() const { return (myNbSlices + 1) * (myNbStacks + 1); }
//! Returns total number of triangles
Standard_Integer NbTriangles() const { return myNbSlices * myNbStacks * 2; }
//! Release GL resources
virtual void Release (OpenGl_Context* theContext) Standard_OVERRIDE;
protected:
//! Returns surface point for the given parameters.
virtual OpenGl_Vec3 evalVertex (const Standard_ShortReal theU,
const Standard_ShortReal theV) const = 0;
//! Returns surface normal for the given parameters.
virtual OpenGl_Vec3 evalNormal (const Standard_ShortReal theU,
const Standard_ShortReal theV) const = 0;
//! Initialize primitive.
Standard_EXPORT Standard_Boolean init (const Standard_Integer theNbSlices,
const Standard_Integer theNbStacks);
private:
//! Initialize arrays.
Standard_Boolean createArrays() const;
private:
Standard_Integer myNbSlices; //!< Number of slices (u partitions)
Standard_Integer myNbStacks; //!< Number of stacks (v partitions)
};
#endif // OpenGl_Quadric_Header
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