Changeset 8986 in orxonox.OLD for trunk/src/lib/util

Timestamp:

Jul 1, 2006, 4:57:07 PM (18 years ago)

Author:

bensch

Message:

trunk: slerping colors in HSV-space works

Location:

trunk/src/lib/util

Files:

• color.cc (modified) (6 diffs)
• color.h (modified) (3 diffs)

trunk/src/lib/util/color.cc

@@ -20 +20 @@
 
 
+//! Red Color
+const Color Color::red(1,0,0, 1);
+//! Green Color
+const Color Color::green(0,1,0, 1) ;
+//! blue Color
+const Color Color::blue(0,0,1, 1);
+//! White Color
+const Color Color::white(1,1,1, 1);
+//! Black Color
+const Color Color::black(0,0,0,1);
+//! Orx Color
+const Color Color::orx(.2, .5, .7, .8);  //!< TODO Define the ORX-color :)
+
+
+void Color::slerpHSV(const Color& c, float v)
+{
+  this->a() += (c.a() - this->a()) * v;
+  Vector from(r(), g(), b());
+  Vector to(c.r(), c.g(), c.b());
+
+  from = RGBtoHSV(from);
+  to = RGBtoHSV(to);
+
+  from += (to - from) * v;
+
+  to = HSVtoRGB(from);
+
+  this->r() = to.x;
+  this->g() = to.y;
+  this->b() = to.z;
+}
+
+Color Color::slerpHSVColor(const Color& from, const Color& to, float v)
+{
+  Color fromColor(from);
+  fromColor.slerpHSV(to, v);
+  return fromColor;
+}
+
+
 void Color::debug() const
 {
@@ -65 +105 @@
   if( s == 0 )
     h = undefined;
-  else {
+  else
+  {
     r_dist = (max_v - r)/diff;
     g_dist = (max_v - g)/diff;
@@ -74 +115 @@
       if( g == max_v )
         h = 2 + r_dist - b_dist;
-    else
-      if( b == max_v )
-        h = 4 + g_dist - r_dist;
-    else
-      printf("rgb2hsv::How did I get here?\n");
+      else
+        if( b == max_v )
+          h = 4 + g_dist - r_dist;
+        else
+          printf("rgb2hsv::How did I get here?\n");
     h *= 60.;
     if( h < 0)
@@ -112 +153 @@
   int i;
 
-  if( s == 0 ) {
+  if( s == 0 )
+  {
     r = v;
     g = v;
     b = v;
   }
-  else {
-   if(h >= 360.)
-     h = h - (float)((int)(ceilf(h) / 360.0));
+  else
+  {
+    if(h >= 360.)
+      h = h - (float)((int)(ceilf(h) / 360.0));
     h /= 60.;
     i = (int) h;
@@ -126 +169 @@
     q = v*(1-(s*f));
     t = v*(1-s*(1-f));
-    switch(i) {
+    switch(i)
+    {
       case 0:
         r = v;
@@ -161 +205 @@
         g = 1.0;
         b = 1.0;
-      //printf("hsv2rgb::How did I get here?\n");
-      // printf("h: %f, s: %f, v: %f; i:  %d\n",hin,s,v,i);
+        //printf("hsv2rgb::How did I get here?\n");
+        // printf("h: %f, s: %f, v: %f; i:  %d\n",hin,s,v,i);
         break;
     }

trunk/src/lib/util/color.h

@@ -2 +2 @@
  * @file color.h
  * @brief Definition of color-calculations
+ *
+ * TODO CONVERT THE VECTORS to COLORS!!
  *
  * code borrowed from:
@@ -49 +51 @@
 
   void slerp(const Color& c, float v) { *this += (c - *this) * v; };
+  void slerpHSV(const Color& c, float v);
+
+  static Color slerpHSVColor(const Color& from, const Color& to, float v);
 
   void debug() const;
@@ -63 +68 @@
   static float maxrgb(float r, float g, float b);
 
+public:
+  static const Color red;
+  static const Color green;
+  static const Color blue;
+  static const Color white;
+  static const Color black;
+  static const Color orx;
+
 private:
   float       _rgba[4]; //!< Color Values