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Now color ramp can do reverse color ramp

This commit is contained in:
Paolo Cignoni 2004-06-24 07:55:50 +00:00
parent 2138bdd2f9
commit 71dbb53a60
1 changed files with 5 additions and 0 deletions
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5
vcg/space/color4.h
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@ -24,6 +24,9 @@
History History
$Log: not supported by cvs2svn $ $Log: not supported by cvs2svn $
Revision 1.6 2004/05/26 15:10:29 cignoni
Corrected bug in setgrayshade
Revision 1.5 2004/05/07 12:46:55 cignoni Revision 1.5 2004/05/07 12:46:55 cignoni
added ifdef for gcc [Bug c++/14479] added ifdef for gcc [Bug c++/14479]
@ -103,6 +106,7 @@ public:
inline void lerp(const Color4 &c0, const Color4 &c1, const float x); inline void lerp(const Color4 &c0, const Color4 &c1, const float x);
inline void lerp(const Color4 &c0, const Color4 &c1, const Color4 &c2, const Point3f &ip); inline void lerp(const Color4 &c0, const Color4 &c1, const Color4 &c2, const Point3f &ip);
/// given a float and a range set the corresponding color in the well known red->green->blue color ramp. To reverse the direction of the ramp just swap minf and maxf.
inline void ColorRamp(const float &minf,const float &maxf ,float v ); inline void ColorRamp(const float &minf,const float &maxf ,float v );
inline void SetRGB( unsigned char r, unsigned char g, unsigned char b ) inline void SetRGB( unsigned char r, unsigned char g, unsigned char b )
@ -209,6 +213,7 @@ inline void Color4<T>::lerp(const Color4<T> &c0, const Color4<T> &c1, const Colo
template <class T> template <class T>
inline void Color4<T>::ColorRamp(const float &minf,const float &maxf ,float v ) inline void Color4<T>::ColorRamp(const float &minf,const float &maxf ,float v )
{ {
if(minf>maxf) { ColorRamp(maxf,minf,maxf+(minf-v)); return; }
if(v < minf ) { *this=Color4(Color4<T>::Red); return; } if(v < minf ) { *this=Color4(Color4<T>::Red); return; }
float step=(maxf-minf)/4; float step=(maxf-minf)/4;