expression problem

[Windows90]

Hey,
expression -s "$scale = ytsk_curveInfo.arcLength /$cureInfo; $eachSASSel = $scale;" -o $eachSASSel -ae 1 -uc all;

You put the string "$eachSASSel" directly into expression instead of its value, I think this' the problem.

You can replace it with
expression -s "$scale = ytsk_curveInfo.arcLength /$cureInfo; "+$eachSASSel+" = $scale;" -o $eachSASSel -ae 1 -uc all;

[cyruslam]

hello
i have used your script but it gave me a error

for ($eachSASSel in $sAsHier) {
string $allSelX = ($eachSASSel+".scaleX\n");
print $allSelX;
string $curveInfoNode = `arclen -ch on ytsk_IKCurve`; expression -s "$scale = ytsk_curveInfo.arcLength /$cureInfo; "+$eachSASSel+" = $scale;" -o $eachSASSel -ae 1 -uc all; }


// Error: expression -s "$scale = ytsk_curveInfo.arcLength /$cureInfo; "+$eachSASSel+" = $scale;" -o $eachSASSel -ae 1 -uc all;
//
// Error: Syntax error //

[Windows90]

Sorry for my hasty reply, the string expression should be put into brackets.

expression -s ("$scale = ytsk_curveInfo.arcLength /$cureInfo; "+$allSelX+" = $scale;") -o $eachSASSel -ae 1 -uc all;
//$eachSASSel is a object name, you couldn't make a object and a float value equal
//I think you mean $allSelX

And if you want get the length of ytsk_IKCurve, your should substitute the ytsk_curveInfo using $curveInfoNode in the same way. That's a problem, but maybe not the problem.

If you are a mel beginner I recommend you read some reference first. "Mo dao bu wu kan chai gong" anyway.

[cyruslam]

hey, thank you very much, sorry i'm very beginner in mel (even programming)
by the way i dont really know how to use and when i need to use some syntax like "+" " () " {}" even you show me the script "+$allSelX+" i dont know why we need to use "+

do you have some referenece of it? because i have checked in Here (http://download.autodesk.com/us/maya/2009help/Commands/index.html) but cant find any information for me.

thanks

[Windows90]

Have a look at MEL and Expressions (http://download.autodesk.com/us/maya/2009help/index.html?url=WS73099cc142f48755-4bc38c931187aa80bc9-32a7.htm,topicNumber=d0e152391) .

And there's a great book called Maya Complete Programming. It could help you a lot.

Jiayou~ bro :D

[cyruslam]

thank you very much~bro~
checking the website now.

(and i like your chinese :thumbsup: 謝謝!)

[CGTalk Moderation]

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.