Bug:? Revolve polyline makes single surface


#1

When revolving this polyline around Z I get a single surface. Why?

If I explode it I get 7 line segments.

For some reason “split at tangents=No” and changing this to “Yes” makes it behave propperly, but there are NO tangents.

bug revolve makes single surface.3dm (20.5 KB)


(Pascal Golay) #2

Hi Jorgen- see if the CreaseSplitting command is set to Split=No…?

-Pascal


#3

It is set to NO.


(Wim Dekeyser) #4

Jørgen, I take it you’ve put it to YES now?


#5

Nobody knows why this is happening… but I suspect that this is a bug in Rhino itself, as it also happens on the Mac side…

–Mitch


(Wim Dekeyser) #6

FWIW, mine was set to yes and I don’t go in there very often / at all. Old habits hard to break and I always explode a curve with a fillet in it before I revolve (and I revolve all the time).


#7

No I didn’t, this was on my laptop and I didn’t know what was default.
I presumed it was NO since I have never altered this. And I have never seen this happen since V4 WIP either.

On my workstation it is sat to Yes.

Thanks for helping out!


#8

If you scan the forum, you will find various posts about this phenomenon, we get one about once every couple of months or so…

–Mitch


#9

Thanks, must have missed it! :smile: