Posted by DowniBri on Dec 13, 2018; 9:10pm
URL: https://forum.librecad.org/polyline-creation-tp5716736.html

I am a new user.

I am trying to create a polyline to feed a laser cutter.

I have two elliptical arcs and two circular arcs which touch each other at a point in a way that forms a fat "C" shape.

I have calculated the geometry so I know the lines meet.

I choose: Modify/Trim 2 and successively choose each touching pair to be sure LC also thinks they meet.

I successively select each of the objects and they change in turn form white to dotted red.  

I then choose: Tools/Polyline/Create polyline from existing objects.  ("Polyline created" appears in the command window).

After this step, one of the objects goes white and the other three remain dotted red.

Has anything happened??

I try to select the objects for crosshatching and when I click the hatching tool, the command line shows a message that the selected object is invalid because it is not closed.

Can someone please help?

Brian