Changeset 3259 for code/branches

Timestamp:

Jun 30, 2009, 4:34:48 PM (15 years ago)

Author:

scheusso

Message:

bonus to ticket 329

File:

• code/branches/netp6/src/util/Math.cc (modified) (3 diffs)

code/branches/netp6/src/util/Math.cc

@@ -136 +136 @@
                 return orxonox::Vector2(0, 1);
         }
-      
+        
         float cos_value = clamp<float>(myorthonormal.dotProduct(projection) / projectionlength, -1, 1);
         float sin_value = sqrt( 1 - cos_value*cos_value );
-      
+        
         if ((mydirection.crossProduct(myorthonormal)).dotProduct(distance) > 0)
             return orxonox::Vector2( sin_value, cos_value );
@@ -176 +176 @@
                 return orxonox::Vector2(0, 1);
         }
-        float angle = acos(clamp<float>(myorthonormal.dotProduct(projection) / projectionlength, -1, 1));
+        //float angle = acos(clamp<float>(myorthonormal.dotProduct(projection) / projectionlength, -1, 1));
+        
+        float cos_value = clamp<float>(myorthonormal.dotProduct(projection) / projectionlength, -1, 1);
+        float sin_value = sqrt( 1 - cos_value*cos_value );
 
         float distancelength = distance.length();
@@ -183 +186 @@
 
         if ((mydirection.crossProduct(myorthonormal)).dotProduct(distance) > 0)
-            return orxonox::Vector2(sin(angle) * radius, cos(angle) * radius);
-        else
-            return orxonox::Vector2(-sin(angle) * radius, cos(angle) * radius);
+            return orxonox::Vector2( sin_value * radius, cos_value * radius);
+        else
+            return orxonox::Vector2( -sin_value * radius, cos_value * radius);
     }