addSelection applyTransform cloneSelection deleteSelection deleteVertex getBoundingBox getSelectedHandle getSelectedShapeHandle getSelection getSelection getSelectionCount getSelectionForChange getSelectionForChange getSelectState getSelectType groupSelection insertVertex isEditMode isFixedLength isLocked isSelectedByType overturnPolygon resetSelection selectAll setEditMode setFixedLength setLocked switchClosed ungroupSelection ~MgSelection

getBoundingBox() virtual Box2d MgSelection::getBoundingBox ( const MgMotion *  sender ) pure virtual 返回选择包络框，模型坐标 在 MgCmdSelect 内被实现. 这是这个函数的调用关系图: