Changeset 5009 in orxonox.OLD for orxonox/trunk/src/util

Timestamp:

Aug 14, 2005, 3:03:02 AM (19 years ago)

Author:

bensch

Message:

orxonox/trunk: added class Color for easy color-transformation

Location:

orxonox/trunk/src/util

Files:

• color.cc (copied) (copied from orxonox/trunk/src/proto/proto_class.cc) (1 diff)
• color.h (copied) (copied from orxonox/trunk/src/proto/proto_class.h) (1 diff)

orxonox/trunk/src/util/color.cc

@@ -10 +10 @@
 
    ### File Specific:
-   main-programmer: ...
+   main-programmer: Benjamin Grauer
    co-programmer: ...
+
+   this code has been borrowed from:
+   http://www.easyrgb.com/math.php
 */
 
 //#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_
 
-#include "proto_class.h"
+#include "color.h"
 
 using namespace std;
 
+Vector Color::RGBtoHSV (Vector RGB)
+{
+  Vector HSV;
 
-/**
- * standard constructor
- * @todo this constructor is not jet implemented - do it
-*/
-ProtoClass::ProtoClass ()
-{
-   this->setClassID(CL_PROTO_ID, "ProtoClass");
+  float var_Min = min( RGB.x, RGB.y, RGB.z );    //Min. value of RGB
+  float var_Max = max( RGB.x, RGB.y, RGB.z );    //Max. value of RGB
+  float del_Max = var_Max - var_Min;             //Delta RGB value
 
-   /* If you make a new class, what is most probably the case when you write this file
-      don't forget to:
-       1. Add the new file new_class.cc to the ./src/Makefile.am
-       2. Add the class identifier to ./src/class_id.h eg. CL_NEW_CLASS
+  flaot V = var_Max;
 
-      Advanced Topics:
-      - if you want to let your object be managed via the ObjectManager make sure to read
-        the object_manager.h header comments. You will use this most certanly only if you
-        make many objects of your class, like a weapon bullet.
-   */
+  if ( del_Max == 0 )                     //This is a gray, no chroma...
+  {
+    HSV.x = 0                                //HSV results = 0 ÷ 1
+    HSV.y = 0
+  }
+  else                                    //Chromatic data...
+  {
+    HSV.y = del_Max / var_Max;
+
+    float del_R = ( ( ( var_Max - RGB.x ) / 6 ) + ( del_Max / 2 ) ) / del_Max;
+    float del_G = ( ( ( var_Max - RGB.y ) / 6 ) + ( del_Max / 2 ) ) / del_Max;
+    float del_B = ( ( ( var_Max - RGB.z ) / 6 ) + ( del_Max / 2 ) ) / del_Max;
+
+    if ( RGB.x == var_Max )
+      HSV.x = del_B - del_G;
+    else if ( var_G == var_Max )
+      HSV.x = ( 1 / 3 ) + del_R - del_B;
+    else if ( var_B == var_Max )
+      HSV.z = ( 2 / 3 ) + del_G - del_R;
+
+    if ( HSV.x < 0 ) ; HSV.x += 1;
+    if ( HSV.x > 1 ) ; HSV.x -= 1;
+  }
+  return HSV;
 }
 
 
-/**
- * standard deconstructor
-*/
-ProtoClass::~ProtoClass ()
+Vector Color::HSVtoRGB (Vector HSV)
 {
-  // delete what has to be deleted here
+
 }

orxonox/trunk/src/util/color.h

@@ -1 +1 @@
 /*!
- * @file proto_class.h
- * @brief Definition of ...
+ * @file color.h
+ * @brief Definition of color-calculations
+ *
+ * code borrowed from:
+ * http://www.easyrgb.com/math.php
 */
 
-#ifndef _PROTO_CLASS_H
-#define _PROTO_CLASS_H
+#ifndef _COLOR_H
+#define _COLOR_H
 
-#include "base_object.h"
+//#include "vector.h"
+class Vector;
 
-// FORWARD DECLARATION
-
-
-
-//! A class for ...
-class ProtoClass : public BaseObject {
-
- public:
-  ProtoClass();
-  virtual ~ProtoClass();
-
-
- private:
-
+class Color
+{
+  Vector RGBtoHSV (Vector RGB);
+  Vector HSVtoRGB (Vector HSV);
 };
 
-#endif /* _PROTO_CLASS_H */
+#endif /* _COLOR_H */