Rhino 3D – Dimension scaling between Model Space and Layouts

[Magoda]

I’m having trouble getting dimension and text scaling to behave consistently in Rhino.

My goal is to add dimensions in model space and have them appear at the same visual size in layout space, regardless of the viewport scale (e.g. 1:50, 1:100, 1:200).

However, when I enable Layout Space / Annotation Scaling, the dimensions change their appearance when I switch between different layout scales. For example, dimensions look correct at 1:50, but the text and arrows appear different at 1:200.

In short:
Is it possible in Rhino to create dimensions in model space that maintain the same paper size in layout space across multiple viewport scales?

Or is the only correct workflow to place all dimensions directly in layout space?

I’m using Rhino 8 on Mac.

Any clarification on the correct workflow or limitations would be appreciated.

[wim (Wim Dekeyser)]

Hi Magoda -

@Magoda

In short:
Is it possible in Rhino to create dimensions in model space that maintain the same paper size in layout space across multiple viewport scales?

Yes. Enabling layout space scaling will do that.
If you are seeing something else on your end, please provide both a simple 3dm file and the output from the Rhino SystemInfo command.
-wim

[Magoda]

For example, how can I get the dimension text to be the same size?
It currently scales with the drawing scale. The text becomes much larger when the drawing is scaled to 1:10.

I would like the dimension text to remain the same size on all drawings, regardless of whether the drawing is at 1:10, 1:50, or 1:200.

How can this be set up correctly?

[wim (Wim Dekeyser)]

Hi Magoda -

@Magoda

How can this be set up correctly?

By enabling layout scaling:

@wim

If you are seeing something else on your end, please provide both a simple 3dm file and the output from the Rhino SystemInfo command.

-wim

[Magoda]

Thank you