Changeset 256 for trunk/VUT/GtpVisibilityPreprocessor/src/Polygon3.cpp

Timestamp:

08/28/05 15:13:06 (19 years ago)

Author:

bittner

Message:

 

File:

• trunk/VUT/GtpVisibilityPreprocessor/src/Polygon3.cpp (modified) (1 diff)

trunk/VUT/GtpVisibilityPreprocessor/src/Polygon3.cpp

@@ -154 +154 @@
 }
 
+
+Vector3
+Polygon3::Center() const
+{
+        int i;
+        Vector3 sum = mVertices[0];
+        for (i=1; i < mVertices.size(); i++)
+                sum += mVertices[i];
+        
+        return sum/i;
+}
+
+
+void
+Polygon3::Scale(const float scale)
+{
+        int i;
+        Vector3 center = Center();
+        for (i=0; i < mVertices.size(); i++) {
+                mVertices[i] = center + scale*(mVertices[i] - center);
+        }
+}