Mesh | Ray Presumably breaking

Grasshopper
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1

Hi,

I am experiencing a very strange behavior in grasshopper when I use Mesh Ray. I have a definition that works as expected culling the areas that I require see image below:

image
image1218×747 53.8 KB

image
image1632×497 67.8 KB

The original surface is on 0. When the original surface is moved for example 12 ft on Z direction my definition totally breaks:

image
image1025×685 166 KB

I was expecting to have the same results as shown in the first image above. I am wondering if anyone else experiences the same issue. I won’t discard as well user error and maybe I am doing something wrong in my definition that is triggering this behavior.

Please if anyone can point me in the right direction I will really appreciate it.

Thanks

Mesh Ray Issues.gh (11.7 KB)

2

Maybe because your target mesh is on the same level of your starting points? I’m not sure…
And you could also use Point In Curve.

Canvas at 15;42;51
Canvas at 15;42;511647×648 270 KB

Mesh Ray Issues_re.gh (14.5 KB)

3 Likes
3

Sorry for the late response. I figure out the reason why I was having this strange behavior. The base curve was a periodic planar curve.

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image1085×510 41.1 KB

I divided the curve and used polyline to approximate it and now it works properly. See attached GH file for reference.

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image2476×1347 248 KB

Mesh Ray Issues.gh (20.4 KB)