setFrom method
Set the values by copying them from other.
Implementation
void setFrom(Vector4 other) {
final Float64List otherStorage = other._v4storage;
_v4storage[3] = otherStorage[3];
_v4storage[2] = otherStorage[2];
_v4storage[1] = otherStorage[1];
_v4storage[0] = otherStorage[0];
}