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svenip
01-27-2003, 09:10 AM
hi,

i have a problem with expressions.

in generall i wanna put a command into a for loop.

so my command normal would read :
object_1.translateX = $value[$i];

the problem is that i wanna react on each object : object_1,object_2 etc etc.

so in mel i would do this with a string

$cmd = ("object_"+$i+".translateX = "+$value[$i]+";");
eval $cmd;

but the expression doesn't seem to evaluate this cmd.

any idea ?
dwalden74
01-27-2003, 10:41 AM
OK, figured it out. Itīs because your expression syntax is in MEL, *not* in the normal expression syntax. Iīll expain:

Try using it in a MEL script:

$cmd = ("object_"+$i+".translateX = "+$value[$i]+";");
eval $cmd;

This wonīt work because your mixing expression and MEL syntax. You have to use the "setAttr" command to get this to work.

This should work in your expression:

$cmd = ("setAttr object_"+$i+".translateX = "+$value[$i]+";");
eval $cmd;

However the setAttr command can slow down expression evaluation. Try to avoid it if you can! Got it?

:beer:
David
svenip
01-27-2003, 11:03 AM
yeah thought about that too. but what should i say. didn't work out in my case.:D
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