undeclared variable

[gmask]

you didn't declare $papa as a global variable

[meldu]

you didn't declare $papa as a global variable

Yes, i did:

global string $papa[] = `ls -sl`;

But give me error:

// Error: Initialization of global variable "$papa" requires a constant value. //

I dont know why, and i dont know exactuly where to declare the global variable. I did it at the begining of the first global proc, but it shows that error.

[zoharl]

I didn't test it, but first declare it as global, then set it:

global string $papa[];
$papa = `ls -sl`;

[rgkovach123]

in general, I would avoid using global variables.

Instead of using Global Variables, write a function to return the father.

global proc string setFather () {
string $papa[] = `ls -sl`;
return $papa[0];
}

global proc setSons () {
string $sons[] = `ls -sl`;
string $papa = `setFather`;
$myNum = (size(`ls -sl`));
for ($laps = 0; $laps <= $myNum; $laps++){
select -r $papa;
select -add $sons;
doCreateParentConstraintArgList 1 { "1","0","0","0","0","0","0","1","","1" };
}
}

[gmask]

Yes, i did

global string $papa[] = `ls -sl`;

But give me error:

// Error: Initialization of global variable "$papa" requires a constant value. //

I dont know why, and i dont know exactuly where to declare the global variable. I did it at the begining of the first global proc, but it shows that error.

you didn't mention that in your original post. :argh:

[meldu]

I didn't test it, but first declare it as global, then set it:

global string $papa[];
$papa = `ls -sl`;


i declare it two times, before the two procs:

//global proc that assing the father and sons
global string $papa[];

global proc setFather () {
//a variable that search and define who its the father
string $papa[] = `ls -sl`;
print $papa[0];
select $papa[0];

}


//global proc that for the sons
global string $papa[];
global proc setSons () {

string $sons[] = `ls -sl`;

$myNum = (size(`ls -sl`));

for ($laps = 0; $laps <= $myNum; $laps++){

select -r $papa[0];
select -add $sons
doCreateParentConstraintArgList 1 { "1","0","0","0","0","0","0","1","","1" };

}


}




//main window

window -rtf true -title "multiConstraint" multiCons;
columnLayout;

button -c "setFather" -label "father";

button -c "setSons" -label "sons";

showWindow multiCons;


Same error: // Error: "$papa" is an undeclared variable. //

Thanks.

[gmask]

i declare it two times, before the two procs:

It needs to be inside the procs!!!


global proc setFather () {
//a variable that search and define who its the father
global string $papa[];

string $papa[] = `ls -sl`;
print $papa[0];
select $papa[0];

}

[zaskar]

Its not enough to declare a variable somewhere. You need to make a procedure familiar with this variable, so declare $papa inside the procedure.

//ok obsolete

[zoharl]

Frankly, the doc explains it better than any of us:


http://download.autodesk.com/global/docs/maya2013/en_us/files/Procedures_Global_and_local_variables.htm

[meldu]

Frankly, the doc explains it better than any of us:


http://download.autodesk.com/global/docs/maya2013/en_us/files/Procedures_Global_and_local_variables.htm


Thanks dude, i will keep trying

[rgkovach123]

i recommend avoiding global variables, they are usually not necessary and a bad habit to develop if you are just starting out scripting. See my post above for how to setup your procs to avoid the use of global vars.

[hominid]

your forgot the ; on the line "select -add $sons"

Cheers,
Pete