Dimensions in layout view don't like perspective

Rhino Rhino for Mac
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1

Hi all,
I would like to know if there’s a reason or a logic behind the fact that Rhino’s layouts can not get accurate dimensions of detail views set to anything other than plan views ? If you try and create dimaligned dimensions of an isometric detail view. the numbers are totally off with no real logic to it.

I believe it’s been like this for as long as I’ve used the software, and I got used to working around it, but as I was training a friend recently this issue popped up, and he was really surprised of this behaviour which is not consistent with other CAD software’s behaviour. And frankly a bit quirky.
Made me think how much time it would save if I could get dimaligned to work in the layout space with perspective and isometric detail views. Any chance that could be solved McNeel ?

Here’s a piece with dimaligned in layout space :

Screenshot 2024-11-19 at 16.29.43
Screenshot 2024-11-19 at 16.29.431920×1325 35.5 KB

Same piece with dimaligned in perspective view :

Screenshot 2024-11-19 at 16.30.20
Screenshot 2024-11-19 at 16.30.202804×2000 316 KB

Thank you for your thoughts on this issue,
Sincerely,
Joaquim

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The key to understand is Dimension Annotations are always created coplanar to the current Construction Plane in the viewport where you are creating them.

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Hi Joaquim -

As John mentioned, the active CPlane is used to create the dimension. We have a feature request on the list and I added this thread. RH-50849 [3D Dimension] (not public).
-wim

1 Like
4

Thank you Wim and John for your explanations, looking forward to this feature being implemented, I would definitely be using it very often, as I’m sure a lot of others would.
Sincerely,
Joaquim