axis CoordinateSystem displacement getAxis getPosition getXDirection getYDirection getZDirection setAxes setAxes setAxis setPlacement setPosition setXDirection setYDirection setZDirection transform transform transformTo xdir ydir ~CoordinateSystem

setPlacement() void setPlacement ( const Placement &  p ) 设置坐标系的变换 设置坐标系的变换。 参数 [in] p 变换