Hi,

I’m new to Rhino, and I can’t figure out how to measure compound angles. I have a surface that I’ve rotated in all 3 dimensions myriad times, and finally got the angle I want. But after rotating it so many times I have no idea the exact angles I moved it from the original orthogonal position. I’ve measured the simple angle deviation of the surface from each of the three standard planes, but when I create a new surface and rotate it at those three measured angles the surface is not oriented the same as the original surface. Using the ‘analyse -> angle’ command I’ve tried measuring the angle of the whole surface from the 3 planes, and also used the ‘curve from object’ command to create three intersection curves of the surface with each of the 3 planes. But each time I try to recreate the compound angle I fail to get the same outcome as the original surface.

I’m desperate to figure this out so any assistance would be immensely appreciated!