MEL locator1〜６位置にjoint１（親）〜６（子）を作成

float $jnt =`xform -q -ws -t locator1`;
joint -p $jnt[0] $jnt[1] $jnt[2];

float $jnt =`xform -q -ws -t locator2`;
joint -p $jnt[0] $jnt[1] $jnt[2];
joint -e -zso -oj xyz -sao yup joint1;
parent -w |joint1|joint2 ;
parent |joint2 |joint1 ;

float $jnt =`xform -q -ws -t locator3`;
joint -p $jnt[0] $jnt[1] $jnt[2];
joint -e -zso -oj xyz -sao yup joint2;
parent -w |joint1|joint2|joint3 ;
parent |joint3 |joint1|joint2 ;

float $jnt =`xform -q -ws -t locator4`;
joint -p $jnt[0] $jnt[1] $jnt[2];
joint -e -zso -oj xyz -sao yup joint3;
parent -w |joint1|joint2|joint3|joint4 ;
parent |joint4 |joint1|joint2|joint3 ;

float $jnt =`xform -q -ws -t locator5`;
joint -p $jnt[0] $jnt[1] $jnt[2];
joint -e -zso -oj xyz -sao yup joint4;
parent -w |joint1|joint2|joint3|joint4|joint5 ;
parent |joint5 |joint1|joint2|joint3|joint4 ;

float $jnt =`xform -q -ws -t locator6`;
joint -p $jnt[0] $jnt[1] $jnt[2];
joint -e -zso -oj xyz -sao yup joint5;
parent -w |joint1|joint2|joint3|joint4|joint5|joint6 ;
parent |joint6 |joint1|joint2|joint3|joint4|joint5 ;