CageEdit doesn't work on Degree 1 curves

Rhino
1

Is there a reason or is it a bug? I can cage-edit degree 1 surfaces, but not a degree-1 line.

2

Hi Peter - works OK here, so far, using a bounding box 3d cage - is that what you are doing?

-Pascal

3

Yeah, that’s what I’m doing. World BB cage with pointcount=4 in each direction, degree 3 for all directions. Here’s a file. We must be doing something differently.

cagedegree.3dm (153.9 KB)

4

Hi Peter - make sure PreserveStructure =No.
Hm. Now I see the problem here as well, in your file.
-Pascal

6

Yeah, I see it in your file, not in a new one…still poking…

-Pascal

7

I see - I’m drawing my line using the Polyline command. If I do it with Line, it works as expected I think? I never use the Line command.

8

I see that, thanks. SimplifyCrv will sort it out, but there is a bug there, thanks for the report.
Yeah, under the hood your line is still a polyline curve, not a line curve…
RH-75062 CageEdit: Fails on polyline
-Pascal

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9

RH-75062 is fixed in Rhino 7 Service Release 30

1 Like