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83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
// Created by: CKY / Contract Toubro-Larsen
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// Copyright (c) 1993-1999 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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//--------------------------------------------------------------------
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//--------------------------------------------------------------------
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#include <IGESGraph_Color.hxx>
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#include <Standard_Type.hxx>
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#include <TCollection_HAsciiString.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(IGESGraph_Color,IGESData_ColorEntity)
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IGESGraph_Color::IGESGraph_Color () { }
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// This class inherits from IGESData_ColorEntity
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void IGESGraph_Color::Init
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(const Standard_Real red,
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const Standard_Real green,
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const Standard_Real blue,
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const Handle(TCollection_HAsciiString)& aColorName)
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{
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theRed = red;
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theGreen = green;
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theBlue = blue;
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theColorName = aColorName;
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InitTypeAndForm(314,0);
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}
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void IGESGraph_Color::RGBIntensity
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(Standard_Real& Red, Standard_Real& Green, Standard_Real& Blue) const
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{
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Red = theRed;
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Green = theGreen;
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Blue = theBlue;
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}
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void IGESGraph_Color::CMYIntensity
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(Standard_Real& Cyan, Standard_Real& Magenta, Standard_Real& Yellow) const
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{
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Cyan = 100.0 - theRed;
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Magenta = 100.0 - theGreen;
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Yellow = 100.0 - theBlue;
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}
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void IGESGraph_Color::HLSPercentage
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(Standard_Real& Hue, Standard_Real& Lightness, Standard_Real& Saturation) const
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{
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Hue = ((1.0 / (2.0 * M_PI)) *
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(ATan(((2 * theRed) - theGreen - theBlue) /
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(Sqrt(3) * (theGreen - theBlue)))));
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Lightness = ((1.0 / 3.0) * (theRed + theGreen + theBlue));
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Saturation = (Sqrt((theRed * theRed ) +
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(theGreen * theGreen) +
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(theBlue * theBlue ) -
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(theRed * theGreen) -
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(theRed * theBlue ) -
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(theBlue * theGreen)));
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}
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Standard_Boolean IGESGraph_Color::HasColorName () const
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{
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return (! theColorName.IsNull());
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}
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Handle(TCollection_HAsciiString) IGESGraph_Color::ColorName () const
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{
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return theColorName;
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}
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