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 davidbasalla08-22-2005, 04:49 PMHi, I just stumbled across this and cant seem to solve it... { float \$a1 = 1; float \$b = 0; \$i = 1; \$b = ("\$a" + \$i); } How would I do it so that ("\$a" + \$i) actually equals the value of \$a1? At the moment I just get: // Warning: line 8: Converting string "\$a1" to a float value of 0. // // Result: 0 // Any help would be appreciated! Cheers, Dave
AndersEgleus
08-22-2005, 05:19 PM
I don't really understand what it is you want to do.

the line

\$b = ("\$a" + \$i);

just tells maya to assign the string "\$a" plus the integer \$i (which has the value 0) to the variable \$b. Since \$b and \$i are numbers, the string "\$a" (note that "\$a" is a string, i.e. a piece of text and not a variable) must also be converted to a number - you can't (mathematically) add a number to a text, that's meaningless. Since maya has no clue what number the string "\$a" is supposed to mean, it automatically converts it to the number 0.0.

If you explain more clearly what you want to do we'll probably be able to help you.

davidbasalla
08-22-2005, 05:33 PM
i wanted to use the variable \$i to iterate through a bunch of variables (eg \$a1, \$a2, \$a3, \$a4,...)
so that if I say ("\$a" + \$i) (where \$i = 1, ,2 ,3, 4....) it returns the actual value of the variable \$a1 that I had declared previously...

so in my example (where it says
\$b = ("\$a" + \$i);
) I would like \$b to equal 1 (from my original declaration
float \$a1 = 1;
near the top)

so basically I want ("\$a" + \$i) to equal the variable \$a1
hmmm, its quite hard to explain, i hope this makes it a bit more clear?
Cheers Dave

08-22-2005, 05:34 PM
I think I know what you're trying to do. To make this work, you could use the following:

eval ("\$b = \$a" + \$i);

eval will take the created string ("\$b = \$a1") and evaluate it as MEL. This avoids the early interpretation that you're facing.

Does that help?

davidbasalla
08-22-2005, 05:45 PM
genius!
yeah, exactly what I wanted...
sorry for explaining it so badly...
Thanks alot!
Cheers, Dave

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