Hi guys, I have a question regarding how PC-DMIS calculates angles. How does the software "guess" as to which plane you wish to calculate the polar angle from and is it possible to override this "guess" somehow?

I have a cylindrical part with holes on the OD and using the location->polar angle dimension I'm trying to get the angle with respect to the x-axis, having set my plane off of the yz face, but I believe it's trying to find the polar angle assuming an xz plane.

Can anyone explain how I can get these angles right?

This also occurs sometimes with concentricity of two circles not coming off the same plane if they're not measured with the same probe angle.

Thanks,

Jim

Running 3.7MR2 with no hope of upgrades as our software license has expired

I have a cylindrical part with holes on the OD and using the location->polar angle dimension I'm trying to get the angle with respect to the x-axis, having set my plane off of the yz face, but I believe it's trying to find the polar angle assuming an xz plane.

Can anyone explain how I can get these angles right?

This also occurs sometimes with concentricity of two circles not coming off the same plane if they're not measured with the same probe angle.

Thanks,

Jim

Running 3.7MR2 with no hope of upgrades as our software license has expired

## Comment