_clear _copy _equals _hitTest _hitTestBox _knotvs _load _output _save _setHandlePoint _setPoint _transform addPoint clearVectors getVectors insertPoint isCurve removePoint resize smooth smoothForPoints

addPoint() bool MgSplines::addPoint ( const Point2d &  pt ) virtual 添加一个顶点 重载 MgBaseLines . 这是这个函数的调用关系图: