Region Union does not output the closed Region?

Replies to This Discussion

Permalink Reply by David Rutten on April 17, 2017 at 11:47am

It's not a line, it's a closed polyline that looks like a line. Since it is closed it is a valid region, however it is also an empty one. That may be confusing the components.

I think the case can be made that empty regions should act like empty regions, i.e. they should not affect any Union or difference, but they should cause an intersection to be empty.

I'll see if I can find a way to reliably detect these cases and adjust the behaviour accordingly.

Permalink Reply by Arthur Mamou-Mani on April 18, 2017 at 4:31am

OK thanks a lot David.

Permalink Reply by David Rutten on April 21, 2017 at 2:14pm

I changed the components to take zero-area regions into account.