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color_cast.hh
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35 /*===========================================================================*\
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37  * $Revision: 736 $ *
38  * $Date: 2012-10-08 09:30:49 +0200 (Mo, 08 Okt 2012) $ *
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40 \*===========================================================================*/
41 
42 #ifndef OPENMESH_KERNEL_OSG_COLOR_CAST_HH
43 #define OPENMESH_KERNEL_OSG_COLOR_CAST_HH
44 
45 #include <algorithm>
46 #include <OpenMesh/Core/Utils/color_cast.hh>
47 #include <OpenSG/OSGGeometry.h>
48 
49 namespace OpenMesh {
50 
53 template <>
54 struct color_caster<osg::Color3ub,osg::Color3f>
55 {
56  typedef osg::Color3ub return_type;
57  typedef unsigned char ub;
58 
59  inline static return_type cast(const osg::Color3f& _src)
60  {
61  return return_type( (ub)std::min((_src[0]* 255.0f + 0.5f),255.0f),
62  (ub)std::min((_src[1]* 255.0f + 0.5f),255.0f),
63  (ub)std::min((_src[2]* 255.0f + 0.5f),255.0f) );
64  }
65 };
66 
69 template <>
70 struct color_caster<osg::Color3f,osg::Color3ub>
71 {
72  typedef osg::Color3f return_type;
73 
74  inline static return_type cast(const osg::Color3ub& _src)
75  {
76  return return_type( (float)(_src[0] / 255.0f ),
77  (float)(_src[1] / 255.0f ),
78  (float)(_src[2] / 255.0f ) );
79  }
80 };
81 
82 } // namespace OpenMesh
83 
84 #endif // OPENMESH_KERNEL_OSG_COLOR_CAST_HH

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