project on axes

gistfile1.java

    public static Projection project( Vector3d[] vertices, Vector3d axis ) {
        double min = axis.dot( vertices[ 0 ] );
        double max = min;
        for (int i = 1; i < vertices.length; i++) {
          // NOTE: the axis must be normalized to get accurate projections
          double p = axis.dot( vertices[ i ] );
          if ( p < min ) {
            min = p;
          } else if ( p > max ) {
            max = p;
          }
        }
        Projection proj = new Projection( min, max );
        return proj;
    }