filled in scale() transformation in util/Transform

git-svn-id: svn://anubis/fart/trunk@28 7f9b0f55-74a9-4bce-be96-3c2cd072584d

util/Transform.cc

@@ -22,5 +22,9 @@ void Transform::rotate(double amt, double xv, double yv, double zv)
 
 void Transform::scale(double xs, double ys, double zs)
 {
-    /* TODO: fill in */
+    Matrix t = Matrix::identity();
+    t[0][0] = xs;
+    t[1][1] = ys;
+    t[2][2] = zs;
+    m_matrix *= t;
 }

util/Transform.h

@@ -12,6 +12,7 @@ class Transform
         void translate(double x, double y, double z);
         void rotate(double amt, double xv, double yv, double zv);
         void scale(double xs, double ys, double zs);
+        Matrix & getMatrix() { return m_matrix; }
 
     protected:
         Matrix m_matrix;