When drawing a surface that does not align with the ground, the dimensions of the features on the surface are not correct. How can I make the dimension lay flat on the surface loke in a 2D drawing?
What version of SketchUp are you using? Please complete your forum profile. Show us at least a screenshot of what you are working on.
First of all in Sketchup when talking about a surface it most likely means multiple joining faces with smooth edges between them.
I take it you mean a face.
Right click on the face and select ‘Align Axes’ in the context menu.
Now you can add dimensions flat on the face.
You can reset the axes by right clicking on an axis in empty space > select ‘Reset’.
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