C++ (Cpp) Vector3D::len Examples

Example #1

File: Vector3D.cpp Project: citxx/osfi-2

Vector3D Vector3D::refract(
    const Vector3D &normal,
    double n) const {
  double cos_s = Vector3D::dot(*this, normal) / len() / normal.len();

  if (cos_s > 0) {
    n = 1.0 / n;
  }

  double abs_cos_s = fabs(cos_s);
  Vector3D true_normal = - (cos_s * normal).normalized();
  Vector3D result = *this / n + (abs_cos_s / n - sqrt(1 - (1 - abs_cos_s * abs_cos_s) / n / n)) * true_normal;
  return result;
}

Example #2

File: Vector3D.cpp Project: citxx/clock-model

Vector3D normalized(const Vector3D &a) {
    return a / a.len();
}

Example #3

File: Vector3D.cpp Project: citxx/osfi-2

Vector3D Vector3D::reflect(const Vector3D &normal) const {
  return *this - 2 * Vector3D::dot(*this, normal) / normal.len() / len() * normal;
}