docs: public boolean clipToMargin(double[] origin, double[] target) {
      assert (target.length == 2 && origin.length == 2);
      if ((origin[0] < minx && target[0] < minx) //
          || (origin[0] > maxx && target[0] > maxx) //
          || (origin[1] < miny && target[1] < miny) //
          || (origin[1] > maxy && target[1] > maxy)) {
        return false;
      }
      double deltax = target[0] - origin[0];
      double deltay = target[1] - origin[1];
      double fmaxx = (maxx - origin[0]) / deltax;
      double fmaxy = (maxy - origin[1]) / deltay;
      double fminx = (minx - origin[0]) / deltax;
      double fminy = (miny - origin[1]) / deltay;
      double factor1 = MathUtil.min(1, fmaxx > fminx ? fmaxx : fminx, fmaxy > fminy ? fmaxy : fminy);
      double factor2 = MathUtil.max(0, fmaxx < fminx ? fmaxx : fminx, fmaxy < fminy ? fmaxy : fminy);
      if (factor1 <= factor2) {
        return false; // Clipped!
      }
      target[0] = origin[0] + factor1 * deltax;
      target[1] = origin[1] + factor1 * deltay;
      origin[0] += factor2 * deltax;
      origin[1] += factor2 * deltay;
      return true;
    }