Float variable declaration Problem

[slacker64]

I am having a problem with part of my script that I am writing. if a user creates multiple locators I am trying to query the rotate Pivot and assign multiple of them to a Float this is what I have so far and would apreciate any help or advice that you have to give. Thank you for your time. 

Here is what I have so far.
create two or more Locators and select them, then run the script. coment out the // float ("$loc" + ($x+1) + "[" + $x + "]") = xform -q -ws -rotatPivot; // and select one of the locators to beable to have it partialy work.

///////////////////////////////////////////////////
//////////////////  MTO_2015 ////////////////////
///////////////////////////////////////////////////
string $locs[] = ls -sl -type "transform";
int $x;
print $x;
for ($x = 0; $x < size($loc); $x++)
{
      print ("$loc" + ($x+1) + "[" + $x + "]"); /*This was to test that the First part of the Float was working the part where it = is where I am having trouble*/
      float ("$loc" + ($x+1) + "[" + $x + "]") = xform -q -ws -rotatPivot;
} 

//testing vars again
float $locRp[] = xform -q -ws -rotatePivot; 
print $locRp[0] 
////////////////////////////////////////////////////// 

[slacker64]

oops! Found a spelling syntax error on my original post so here is it updated (I for got the (s) in the for ($x=0; $x <size($locs); $x++)

///////////////////////////////////////////////////
//////////////////  MTO_2015 ////////////////////
///////////////////////////////////////////////////
string $locs[] = ls -sl -type "transform";
int $x;
print $x;
for ($x = 0; $x < size($locs); $x++)
{
      print ("$loc" + ($x+1) + "[" + $x + "]"); /*This was to test that the First part of the Float was working the part where it = is where I am having trouble*/
      float ("$loc" + ($x+1) + "[" + $x + "]") = xform -q -ws -rotatPivot;
} 

//testing vars again
float $locRp[] = xform -q -ws -rotatePivot; 
print $locRp[0] 
//////////////////////////////////////////////////////  

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

I have Also tryed another version of trying to find a way to fix the concatination problem /// again creat two or more locators to oper ate the code

 ///////////////////////////////////////////////////
//////////////////  MTO_2015 ////////////////////
///////////////////////////////////////////////////
string $locs[] = ls -sl -type "transform";
int $x;
print $x;
for ($x = 0; $x < size($locs); $x++)
{
       print ("$loc" + ($x+1) + "[]"); 

////////////////////////////PROBLEM AREA IS IN COMENTS FOR TESTING//////////////////////////////////////////////////

       //float ("$loc" + ($x+1) + "[]");   
       //$loc[$x] = xform -q -ws -rotatePivot $locs[$x];   
       //print $loc[$x];

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
} 

//testing vars again
float $locRp[] = xform -q -ws -rotatePivot; 
print $locRp[0] 
//////////////////////////////////////////////////////  

[davus]

To be hoenst I don't really understand the question. It seems like you are trying to dynamically create variables?
If that's true, look up the "eval" command. It goes something like this:

// MEL
string $bySelection = "-sl";
string $cmd = ("string $sel[] = ls "+$bySelection+";"); 
eval $cmd; 

Basically it builds the command into a string, then the "eval" treats the string as if it is a command to be executed.

Not sure if that's what you're going for...

[joojaa]

Mel has no arrays of arrays. Consider using python instead. But if you must use mel, what you probably want is something like:

{ // protect from  pollution
    proc append(float $arr1[], float $arr2[]){
        for( $item in $arr2 ) {
            $arr1[ size($arr1) ] = $item;
        }
    }
 
    proc float[] getVector(float $arr1[], int $item){
       return {$arr1[$item*3],$arr1[$item*3+1],$arr1[$item*3+2]};
    }
 
 
    string $locs[] = `ls -sl -type "transform"`;
    float $locArr[];
    int $x;
    print ($x+"\n");
    for ($x = 0; $x < size($locs); $x++)
    {    
         append($locArr,`xform -q -ws -rotatePivot $locs[$x]`);
         print(getVector($locArr, $x));
    }
}

We can use c style object orientation, a array is enough for fixed width arrays of arrays. On the other hand in python it would just be:

import maya.cmds as cmds
 
locs = cmds.ls(sl=True, type="transform")
locArr = []
for i in range(len(locs)):
    locArr.append(cmds.xform(locs[i], q=True, ws=True, rotatePivot=True))
    print locArr[i]

PS: do not even think of using eval here.