getTangent method
Implementation
@override
getTangent(t, [optionalTarget]) {
var tangent = optionalTarget ?? Vector2(null, null);
tangent.copy(v2).sub(v1).normalize();
return tangent;
}
@override
getTangent(t, [optionalTarget]) {
var tangent = optionalTarget ?? Vector2(null, null);
tangent.copy(v2).sub(v1).normalize();
return tangent;
}