public CCVertex3D vertex(ccGridSize pos){
  int index=(pos.x * (gridSize_.y + 1) + pos.y) * 3;
  CCVertex3D vert=new CCVertex3D(vertices.get(index + 0),vertices.get(index + 1),vertices.get(index + 2));
  return vert;
}

public CCVertex3D vertex ( ccGridSize pos ) { int index = ( pos . x * ( gridSize_ . y + 1 ) + pos . y ) * 3 ; CCVertex3D vert = new CCVertex3D ( vertices . get ( index + 0 ) , vertices . get ( index + 1 ) , vertices . get ( index + 2 ) ) ; return vert ; }
returns the vertex at a given position
