Function testExtendByPoint

src/ImathTest/testBox.cpp:228–284

template <class T>
void
testExtendByPoint (const char* type)
{
    cout << "    extendBy() point for type " << type << endl;

    IMATH_INTERNAL_NAMESPACE::Rand32 rand (0);

    const unsigned int iters = 10;

    //
    // Extend empty box with a single point.
    //
    for (unsigned int i = 0; i < iters; i++)
    {
        T p;
        for (unsigned int j = 0; j < T::dimensions (); j++)
            p[j] = typename T::BaseType (rand.nextf (-12345, 12345));

        IMATH_INTERNAL_NAMESPACE::Box<T> b;
        b.extendBy (p);
        assert (b.min == p && b.max == p);
    }

    //
    // Extend empty box with a number of random points. Note that
    // this also covers extending a non-empty box.
    //
    for (unsigned int i = 0; i < iters; i++)
    {
        IMATH_INTERNAL_NAMESPACE::Box<T> b;

        T min;
        T max;

        for (unsigned int j = 0; j < i; j++)
        {
            T p;
            for (unsigned int k = 0; k < T::dimensions (); k++)
                p[k] = typename T::BaseType (rand.nextf (-12345, 12345));

            if (j == 0)
            {
                min = p;
                max = p;
            }
            for (unsigned int k = 0; k < T::dimensions (); k++)
            {
                min[k] = std::min (min[k], p[k]);
                max[k] = std::max (max[k], p[k]);
            }

            b.extendBy (p);

            assert (b.min == min && b.max == max);
        }
    }
}