Rhino Unable to Join Curves

Rhino
1

Hey there

I am struggling with a large map file that I’m working on for an representation course. Throughout this course I have been finding there are consistent issues with exporting to illustrator, because the curves that make up this map are not joined. If all of the curves that should be joined, were, then I think it would make everything else I have to do much easier.

Here is an example of two curves that should be joined, but will not. Rhino simple says “unable to join curves”.

image
image856×1107 13.4 KB

image
image709×1097 16 KB

I have tried various solutions to this but nothing seems to work. What would you recommend? I am having this issue with several other layers in the main file, but I am just exporting this layer for reference.

Thank you in advance!

2021.01.16 RhinoForumPost Alice.3dm (2.1 MB)

2

You have several issues here.

  1. Gaps between curve ends

    image
    image635×568 4.86 KB

  2. Overlapping curve ends

    image
    image634×824 9.65 KB

  3. Stray segments that completely overlap others
    image

One way to attack this is to use SelClosedCrv to select all closed curves and lock them. Then find all the stray segments that overlap the closed curves and delete them. Then try selecting all and run CurveBoolean with DeleteInput=Used. Then select all the curves that were closed by this procedure and lock those too. Lastly you will manually need to fix the remaining open curves to close the ones you want.

1 Like
3

also you can use Make2d to get rid of some of the overlaping lines.

4

Hey, this seemed to work super well. Now other than filling the small gaps I don’t believe I have any more work to do. Thank you!