Rhino 7/Grasshopper Mesh|Curve intersect not working

Grasshopper
,
1

When using the mesh|curve intersect, not all intersect point will show. This is not an issue in Rhino 6, is this a know issue and will there be a solution? I know the geometry is far away from 0,0,0 but this worked in Rhino6.

Rhino7
Mesh_Curve.gh (2.9 KB)

2

Moved to Grasshopper category

3

Hi -

I see that here and put it on the list as RH-62386 to be looked at.
For the time being, you could create a surface in the same position as the mesh and intersect the curves with the surface.
-wim

4

Thank you, as a fix I exchanged the Mesh|Curve with Mesh|Ray. This works for this case, but not for all.

5

Hi @pga

I’ll take a look at the first sample, and try to figure out who should look into this next. But I’m very interested in making Mesh|Ray work very well, also.

Are you using Rhino 7 SR3? This would be very important, because we have been tweaking this component to use the new intersector between SR2 and SR3. Please, if you have a sample that does not work, post it as well!

7

Hi. I have the SR3 version. In the original post I have attached an example definition where the issue is shown.

8

@pga Sorry, I must have not explained carefully enough. The Mesh|Curve component does not work well, and that’s something that is being explored. @wim kindly reported the issue. This is something related to some different work, not the New Mesh Intersector, because Mesh|Curve does not use it. I suspect some particular mesh tree changes. This can be tracked at RH-62386. As a todo item for me, I’ll check if it’s feasible to switch to the new intersector.

In the next message, you mention the use of Mesh|Ray fixes this particular problem, “but not all”.

I opened the file you attached and indeed it works always here. My request was particularly related to Mesh|Ray working “not for all”. I tested this in 7.3.21012.11001. SR3 is still changing every week, because it’s a Service Release Candidate.

image
Mesh_Curve_Ray_pga.gh (7.6 KB)

Do you have a sample where Mesh|Ray does not work in version 7.3.21012.11001 or later?
Thanks,

Giulio

–
Giulio Piacentino
for Robert McNeel & Associates
giulio@mcneel.com

9

It’s the mesh|curve that does not work, the mesh|ray works well.

1 Like
10

The next release of Rhino 7 SR4 will contain a fix for issue RH-62386. You can switch to “Service Release Candidate” to download SR4 now.