Copying an arc

SketchUp
1

Odd question, I think…
When I copy an arc, the new copy is not an arc, it is the line segments of the arc.
Is there a way to keep it an arc on copy?

2

How are you copying it? How large is the arc? I get a new arc (identified as an arc) when I use Move/Copy or Copy and Paste.

Maybe share a .skp file in which you see this?

3

Try this. Draw a rectangle. Add an arc to one end. Flip+ it to the other side of the rectangle. The new one is segments…

4

arc

arc2

1 Like
5

6

6

I did the exact same thing and get 12 edges…

7

I don’t know what to tell you. You didn’t answer my question about the size of the arc nor did you share the .skp file. Neither @endlessfix nor I are currently able to duplicate what you are seeing so there’s something else going on.

Are you still using SketchUp 2020?

8

Nope 2024. Here’s an image after I did the flip copy.

Screenshot 2024-07-24 142915
Screenshot 2024-07-24 1429151059×337 21.3 KB

9

Please update your forum profile.

As I asked in my first post, what is the radius of the arc?

10

7". Here’s the skp file
ArcIssue.skp (113.8 KB)

11

This is what I get when I copy/flip the arc in your model.
arc3

12

There’s something odd going on. Try flipping without the copy option. For me, that leaves behind the original and creates a copy at the other end that is just edges. It seems like a bug, since flip without copy should have deleted the original, shouldn’t it?

13

I tried it again and it worked. Seems like something odd is going on with flip…

14

Another odd thing happened. When I tried to flip the arc again, the red plan jumped to the right of the rectangle and I couldn’t select the center…

Screenshot 2024-07-24 144220
Screenshot 2024-07-24 1442201257×494 18.3 KB

Maybe it’s time to reboot… :wink:

1 Like
15

If you only select the arc but not the face to flip, it will leave an arc to support the half-circle face. Nothing strange there. If you select the arc and the face both get flipped to the opposite end. I’m not seeing the arc breaking up in either case.
arc4

16

Probably.

17

I still think there may be an issue. But I think I figured one thing out.
If I copy the face without selecting the arc, I get edges.

18

You’re right. I overlooked the need for the original arc to remain as the boundary of the face. But if I do a flip copy, I definitely get 12 segments, not an arc. The same does not happen if the arc is not attached to a face - then I do get an arc.

19

Thanks to all for helping me puzzle this on out!

1 Like
20

So clearly there is something strange going on anyway. I’m clearly not having any issues with it on my PC.