ArcEngine 改变线IPolyline的方向(小技巧)
private IPolyline ChangeDirection(IPolyline polyline)nnIPointCollection pointCollection = polyline as IPointCollection;nIPointCollection newPC = newPolylineClass();nfor (int i =pointCollection.PointC
private IPolyline ChangeDirection(IPolyline polyline)nnIPointCollection pointCollection = polyline as IPointCollection;nIPointCollection newPC = newPolylineClass();nfor (int i =pointCollection.PointC