Fix problems

[drafter]

Model properties dialog box allows us to select "
Fix Problems". Exactly how does this work?...

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[slbaumgartner]

That item causes SketchUp to scan the model's geometry database looking for conditions that violate the database's integrity rules. That is, data that should not have happened yet somehow did, and that affect the engine's ability to traverse the database - such as an illegal object id. As in any other database, allowing such violations to persist runs the risk of causing more violations and eventually causing SketchUp to crash. So far as I know they have never documented the rules (just as they have never documented the database schema itself).

My own experience is that most of the time the fixups involve internal issues that mean very little to the end user. And, most of the time the fix has no detectable effect on the model. On rare occasions however the fix can destroy geometry that was entangled in the violations. I don't know whether your disconnected dimensions would be considered an integrity violation or not.