stringArrayIntersector

[macaroniKazoo]

string $arrayIntersector = 'stringArrayIntersector';

you need to actually create the string intersector object. its a weird one, because this is a UI object that does the intersection, NOT a mel command. its very strange, but yeah. thats how it works.

so the above line creates the string intersector UI object.

also, because its an _array_ intersector, it returns an array, so your line:

string $results = `stringArrayIntersector -query $arrayIntersector`;

should read:

string $results[] = `stringArrayIntersector -query $arrayIntersector`;

and your print line won't work, because you can't add arrays to strings. just a print $results; will work tho.

[ktpr]

Interesting. My friend also found that the -edit -reset flags were needed to make the example work. This is the working example I have:

string $myIntersector;

string $initialArray[] = {"Excellent", "Smithers", "doh"};

stringArrayIntersector -edit -reset $myIntersector;
stringArrayIntersector -edit -intersect $initialArray $myIntersector;
stringArrayIntersector -edit -intersect {"Smithers", "Homer"} $myIntersector;

string $foo[] = `stringArrayIntersector -query $myIntersector`;

stringArrayIntersector -edit -reset $myIntersector;

for($node in $foo){ print("\n " + $node);}

---
I foudn that if i didn't have that second -edit -reset in there the insector would complain about the insector object name not being unique. I didn't know this was a global value.

[macaroniKazoo]

it probably isn't. I expect you ran the example from the mel docs, which also uses the variable $myIntersector - which created it as a global variable.

try restarting maya, and I expect you'll find that the variable $myIntersector isn't defined. just remember to delete your UI when you're done.

PS i've actually made a script which calls the string intersector, does the intersection, deletes the intersector object, then returns the results. which means I can do an array intersection in a single, neat line of code. You might want to do the same - just for the sake of simplicity.

[ktpr]

You're right, it didn't matter after the second run. The state of the intersector doesn't seem to be consistent to me. This is the weirdest mel function I've come across yet. Anwya, how do I delete the intersector when I done with it? delete $myIntersector doesn't work.

Thanks for your time.

[macaroniKazoo]

remember, its a UI object, not a normal object.

so deleteUI $arrayIntersector; is what you're after. and you're right, it is very weird indeed. why alias didn't implement it as a normal mel command is a little beyond me, but hey... :)

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