@StrasakovaAnna221168 wrote:
.... when I drawing curve there is no way to connect beginning to the end or to some between point. I have all the snapping on....
Late to the game, but since I don't see these points made, for others who may have the same problem....]
Does the CLOSE option in the PLINE command [I don't know the wording in your language] not work for you? It does for me in your drawing. That's the better way to do it than by picking back on the start point to "close" it, because when you do the latter, you end up with coincident vertices [two vertices in the same place], which can cause problems in some situations.
About the snapping, could it be that you have a lot of object-snap modes set to be applied, but you don't have the choice set to actually apply them? You need to have this box checked:
[And by the way, since you say you have "all the snapping on:" I'm not sure exactly what you mean by that, but just so you know, never include NEAREST object snap among the chosen modes. It will almost always "win" in competition with other modes, and give you unintended results.]
Kent Cooper, AIA