Method simplifyT

src/fl/math/line_simplification.h:121–127

    template <typename VectorType>
    void simplifyT(const fl::span<const Point> &polyLine, VectorType *out) {
        // run the simplification algorithm
        simplifyInternal(polyLine);

        // copy the result to the output slice
        out->assign(mSimplified.begin(), mSimplified.end());
    }
    // Runs in O(n) allocations: one bool‐array + one index stack + one output
    // vector
    void simplifyInternal(const fl::span<const Point> &polyLine) {