Measurement tool gives inconsistent value

[gregH7VPN]

The measurement tool shows inconsistent values for the same measurement. In this example, I am measuring a planar angle that should 58.282525 degrees, and that is what shows up in the results, but why do the on screen numbers show up as a different number every time I measure it? I realize these are tiny values but why are there different results? Is the on screen number based on the screen pixels instead of the model or something like that?

 

[jhackney1972]

I can replicate your difference in angle but the angle in the Measure dialog box and the value on the read-out on the screen match every time.  I believe the difference of angle is due to the prospective you are looking at when the face to face angle is measured.  All three match when you measure in orthographic.  That is my take anyway.

[gregH7VPN]

Thanks John, you are correct. That mismatch only pops up in perspective view. But viewing it from a different angle shouldn't affect the relative measurement of those fixed faces, so its got to be a bug or at least an averaging error when Fusion determines the face location in perspective. Seems like a less accurate system is in play when you are in perspective mode. I wonder if that affects things like mirroring an object to a selected face?