topic Re: script to Query for number of reversed and Overlapping UVs in Maya Programming Forum

script to Query for number of reversed and Overlapping UVs

RichSuchy — Fri, 25 Jun 2021 02:20:06 GMT

Is there a queryable command that returns the number of overlapping and reversed UV's an object has. I want to write a check in script that parses a selection of models and prints a report about the selected models. Found two python scripts online but neither have propper syntax and don't do what I am looking to do.. The UV editor hud shows this information in the lower right corner so it seems it would be simple. Looking through the mel commands I came up dry.

Re: script to Query for number of reversed and Overlapping UVs

malcolm_341 — Fri, 25 Jun 2021 22:37:24 GMT

For backfacing select your object in object mode

SelectUVMask;
SelectUVBackFacingComponents;

For overlapping

SelectFacetMask;
selectUVOverlappingComponents 1 0;

Re: script to Query for number of reversed and Overlapping UVs

RichSuchy — Fri, 25 Jun 2021 23:53:24 GMT

Thank you so much!

Re: script to Query for number of reversed and Overlapping UVs

RichSuchy — Sat, 26 Jun 2021 01:03:56 GMT

I tried to create a quick test of the Backfacing UV counter.

I might be missing something simple here but is there a reason this would not work. My array appears empty even though I purposely created bad UVs. The bad UVs are displayed after the command but not captured in my array.

SelectUVMask;
string $backFaceing[];
$backFaceing = `SelectUVBackFacingComponents`;
$strSize=size($backFaceing);
print $strSize;
clear $backFaceing;

$strSize returns 0

Re: script to Query for number of reversed and Overlapping UVs

malcolm_341 — Sat, 26 Jun 2021 16:04:22 GMT

It looks like defining the selection can't be done at the same time as creating the variable, you can do it like this to get the result you're after.

SelectUVMask;
SelectUVBackFacingComponents;
string $backFaceing[] = `ls -sl -fl`;
$strSize = size($backFaceing);
print $strSize;
clear $backFaceing;

Re: script to Query for number of reversed and Overlapping UVs

RichSuchy — Sat, 26 Jun 2021 16:13:02 GMT

I wish these commands had some documentation. Thanks a bunch, That is indeed a solution (slapping forehead for missing the obvious)

Re: script to Query for number of reversed and Overlapping UVs

malcolm_341 — Sat, 26 Jun 2021 16:13:41 GMT

Yeah it would be nice if the mel reference had been updated in the last 10 years, it seems really out of date.