question: the second control point of the curve . concode_field_sep double _p1_y concode_elem_sep double _ctl2_y concode_elem_sep double _p2_x concode_elem_sep double _p2_y concode_elem_sep double _p1_x concode_elem_sep double _ctl1_x concode_elem_sep double _ctl1_y concode_elem_sep double _ctl2_x concode_field_sep Vector2D p concode_elem_sep Vector2D p1 concode_elem_sep Vector2D p2 concode_elem_sep Vector2D ctl1 concode_elem_sep double x concode_elem_sep double y concode_elem_sep double interpolate
target: Vector2D function ( ) { return new Vector2D ( _ctl2_x , _ctl2_y ) ; }