getPoint method
Vector?
getPoint(
- double t, [
- Vector? optionalTarget
])
override
Implementation
@override
Vector? getPoint(double t, [Vector? optionalTarget]) {
optionalTarget ??= Vector3();
late Vector3 optTarget;
if(optionalTarget is Vector2){
optTarget = Vector3(optionalTarget.x,optionalTarget.y,0);
}
else if(optionalTarget is Vector4){
optTarget = Vector3(optionalTarget.x,optionalTarget.y,optionalTarget.z);
}
else{
optTarget = optionalTarget as Vector3;
}
final point = optTarget;
t *= 2 * math.pi;
final x = 16 * math.pow( math.sin( t ), 3 ).toDouble();
final y = 13 * math.cos( t ) - 5 * math.cos( 2 * t ) - 2 * math.cos( 3 * t ) - math.cos( 4 * t );
const z = 0.0;
return point.setValues( x, y, z ).scale( scale );
}