_clear _copy _equals _getHandleCount _getHandlePoint _getHandleType _getPoint _getPointCount _hitTest _hitTestBox _isClosed _isKindOf _load _output _points _save _setHandlePoint _setPoint _transform _update getAngle getCenter getDiagonalLength getHeight getPoints getRect getSubType getWidth isEmpty isOrtho MgBaseRect setCenter setRect2P setRect4P setRectWithAngle setSquare transformWith2P Type

getCenter() Point2d MgBaseRect::getCenter ( ) const 返回中心点 这是这个函数的调用关系图: