/// Returns a new coordinate matrix containing the result of
/// subtracting the coordinates with \p coordinates.
Coordinates Coordinates::subtract(const Coordinates &coordinates) const
{
int size = qMin(this->size(), coordinates.size());
Coordinates result(size);
for(int i = 0; i < size; i++){
const Point3 &a = position(i);
const Point3 &b = coordinates.position(i);
result.setPosition(i, a - b);
}
return result;
}
