VBAI Roundness not visible "Find Circular Edge" step

[bean123]

I've been investigating using VBAI to create inspections for a project where we need to measure the "roundness" of a circle.  In LabVIEW the Find Circular Edge VI returns a roundness parameter, but it does not appear in the results.  Is "deviation" in VBAI the same as Roundness in the labview VI?

[Brad]

It's similar. It's actually the Residual (returned by the IMAQ Fit Circle 2) divided by the number of points found by IMAQ Spoke. You can generate LabVIEW code (if you have LabVIEW) and dig into the low levels of how these paramaters are calculated from the VBAI steps.

Hope this helps,

Brad