Function filter

tools/Wires/Tiler/TilerEngine.cpp:44–60

    template <typename T>
    T filter(const T& data, const std::vector<bool>& mask) {
        const size_t num_rows = data.rows();
        size_t valid_rows = 0;
        for (auto itr : mask) {
            if (!itr) valid_rows++;
        }

        T result(valid_rows, data.cols());
        size_t count = 0;
        for (size_t i=0; i<num_rows; i++) {
            if (mask[i]) continue;
            result.row(count) = data.row(i);
            count++;
        }

        return result;
    }
}

using namespace TilerEngineHelper;