set method
Sets all components at once.
Values are converted using num.toDouble, truncating any fractional part.
Returns this instance for fluent chaining.
Implementation
V4 set(num x, num y, num z, num w) {
this.x = x.toDouble();
this.y = y.toDouble();
this.z = z.toDouble();
this.w = w.toDouble();
return _this;
}