97 lines
3.3 KiB
C++
97 lines
3.3 KiB
C++
// Created on: 1997-02-12
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// Created by: Alexander BRIVIN
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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 _Vrml_SpotLight_HeaderFile
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#define _Vrml_SpotLight_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 "Quantity_Color.hxx"
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#include "gp_Vec.hxx"
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#include "Standard_OStream.hxx"
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//! specifies a spot light node of VRML nodes specifying
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//! properties of lights.
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//! This node defines a spotlight light source.
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//! A spotlight is placed at a fixed location in 3D-space
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//! and illuminates in a cone along a particular direction.
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//! The intensity of the illumination drops off exponentially
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//! as a ray of light diverges from this direction toward
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//! the edges of cone.
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//! The rate of drop-off and agle of the cone are controlled
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//! by the dropOfRate and cutOffAngle
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//! Color is written as an RGB triple.
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//! Light intensity must be in the range 0.0 to 1.0, inclusive.
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class Vrml_SpotLight
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{
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public:
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DEFINE_STANDARD_ALLOC
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Standard_EXPORT Vrml_SpotLight();
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Standard_EXPORT Vrml_SpotLight(const Standard_Boolean aOnOff,
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const Standard_Real aIntensity,
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const Quantity_Color& aColor,
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const gp_Vec& aLocation,
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const gp_Vec& aDirection,
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const Standard_Real aDropOffRate,
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const Standard_Real aCutOffAngle);
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Standard_EXPORT void SetOnOff(const Standard_Boolean anOnOff);
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Standard_EXPORT Standard_Boolean OnOff() const;
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Standard_EXPORT void SetIntensity(const Standard_Real aIntensity);
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Standard_EXPORT Standard_Real Intensity() const;
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Standard_EXPORT void SetColor(const Quantity_Color& aColor);
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Standard_EXPORT Quantity_Color Color() const;
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Standard_EXPORT void SetLocation(const gp_Vec& aLocation);
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Standard_EXPORT gp_Vec Location() const;
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Standard_EXPORT void SetDirection(const gp_Vec& aDirection);
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Standard_EXPORT gp_Vec Direction() const;
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Standard_EXPORT void SetDropOffRate(const Standard_Real aDropOffRate);
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Standard_EXPORT Standard_Real DropOffRate() const;
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Standard_EXPORT void SetCutOffAngle(const Standard_Real aCutOffAngle);
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Standard_EXPORT Standard_Real CutOffAngle() const;
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Standard_EXPORT Standard_OStream& Print(Standard_OStream& anOStream) const;
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protected:
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private:
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Standard_Boolean myOnOff;
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Standard_Real myIntensity;
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Quantity_Color myColor;
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gp_Vec myLocation;
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gp_Vec myDirection;
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Standard_Real myDropOffRate;
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Standard_Real myCutOffAngle;
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};
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#endif // _Vrml_SpotLight_HeaderFile
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