Method setXDirection

src/Base/CoordinateSystem.cpp:83–93

}

void CoordinateSystem::setXDirection(const Vector3d& dir)
{
    Vector3d yd = axis.getDirection() % dir;
    if (yd.Sqr() < Base::Vector3d::epsilon()) {
        throw Base::ValueError("Direction is parallel to Z-direction");
    }
    ydir = yd;
    ydir.Normalize();
    xdir = ydir % axis.getDirection();
    xdir.Normalize();
}

void CoordinateSystem::setYDirection(const Vector3d& dir)
{