两个物体之间的距离

proc float getdis(string $a, string $b){

float $tx = `getAttr ($a+".tx")` ;
float $ty = `getAttr ($a+".ty")` ;
float $tz = `getAttr ($a+".tz")` ;

float $tx2 = `getAttr ($b+".tx")` ;
float $ty2 = `getAttr ($b+".ty")` ;
float $tz2 = `getAttr ($b+".tz")` ;

$txx = $tx2 - $tx;
$tyy = $ty2 - $ty;
$tzz = $tz2 - $tz;
float $lis = `sqrt($txx*$txx + $tyy*$tyy +$tzz*$tzz)`;
return $lis ;
}

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

float $dis = getdis($obj[0],$obj[1]);