FCF Datums get erased inside of loop?

Hello All!

I apologize if this has been asked/solved before, but here goes... I made a simple program to check a part and verify some dimensions. I reran it a few times to make sure everything would work. I wanted to run a small loop to verify repeatability.

However, as soon as I execute the loop, the FCF datums get wiped out. This only happens inside the loop, when running the program normally (a single iteration), there is no issue.

What could be causing this error?

I am using a simple readpoint alignment followed by a DCC alignment and 2023.1 version of DMIS.

Thanks for any wisdom.

bfire85 over 1 year ago

I have seen this and do not know if it's because of the new Geo Tol library, but my loops spit out the report after every loop, then each loop append to the report. For some reason PC-DMIS doesn't want to attach the Datums to the loop ID, but sticks it to the first one only.

There's probably a setting somewhere to change.
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Neil Challinor over 1 year ago

From the following page of the help files: PC-DMIS Help Center - 2023.1 (hexagonmi.com)

We do not recommend using copy/paste or paste-with-pattern to replicate the geometric tolerance command. There are some cases where it works, and there are other cases where paste-with-pattern is fundamentally incapable of working correctly. We also do not recommend putting the geometric tolerance command inside a loop, for similar reasons: some cases work, and some cases cannot ever work. It is okay to put the entire measurement routine inside of one loop.
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Ncogneto over 1 year ago

i vaguely recall hearing in the Geotol GD&T training class that versions 2020R2 and above don't support Feature Arrays.
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BIGWIG7 over 1 year ago in reply to Neil Challinor

how do you take the geo tol command outside of a loop but still have it report results during a loop?
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Paganini over 1 year ago in reply to BIGWIG7

You could run your features in the loop without an evaluation and without the Geotol command, and run the evaluation outside of the loop.
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bfire85 over 1 year ago in reply to Paganini

Yeah, but then the 0,0 changes and so does your datums. I don't think you can evaluate them outside the loop unless you write all the data into a separate file and "build" your datums outside the loop with the data provided from inside the loop.
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