NP_curveLocalScale_both.mel

global proc both()
{
string $select[]= `ls -sl`;
string $keyAttr[]=`keyframe -q -sl -n`;
string $radioButton = `radioCollection -q -sl radioCo`;
float $scalValue = `floatSliderButtonGrp -q -v scaleSlider`;
float $pivot;
float $keyValue[];
float $keyIndex[];
float $factor;
float $value;
float $range;
float $rangeFactor;
float $rangeFactorReverse;
int $damping = `checkBox -q -v dampCheck`;
int $reverseDamp =`checkBox -q -v reverseDamp`;
int $t;

bufferCurve -animation keys -swap;
bufferCurve -animation keys -overwrite true;

	for ($j=0; $j<size($keyAttr);$j++){

	$keyValue=(`keyframe -q -sl -vc $keyAttr[$j]`);
	$keyIndex=(`keyframe -q -sl -tc $keyAttr[$j]`);
	
		if (size ($keyIndex)!=1){

		$m =($keyValue[size($keyValue)-1]-$keyValue[0])/($keyIndex[size($keyIndex)-1]-$keyIndex[0]);
		$range = $keyIndex[size($keyIndex)-1]-$keyIndex[0];
		$rangeFactorReverse=$keyIndex[1]-$keyIndex[0];
		$rangeFactor=$keyIndex[size($keyIndex)-1]-$keyIndex[size($keyIndex)-2];
		$factor=(1.0/($range));
		$t=($range);
	
			for ($i=0; $i<$range+1; $i++){
			$pivot = $m*(($keyIndex[0]+$i)-$keyIndex[0])+$keyValue[0];
				if ($damping == 1){
					if ($reverseDamp ==1){
					$value=($factor*$i)+($factor*$t*$scalValue)+($rangeFactorReverse*$factor*($scalValue-1));
					}
					else{
					$value=($factor*$t)+($factor*$i*$scalValue)+($rangeFactor*$factor*($scalValue-1));
					}
				}
				else{
				$value=$scalValue;
				}
				
			scaleKey -t ($keyIndex[0]+$i) -vs $value -vp $pivot $keyAttr[$j];
			$t-=1;
			}
		}
	}
}