iTextSharp.text.pdf.qrcode.Version.BuildFunctionPattern C# (CSharp) Method

        BitMatrix BuildFunctionPattern() {
            int dimension = GetDimensionForVersion();
            BitMatrix bitMatrix = new BitMatrix(dimension);

            // Top left finder pattern + separator + format
            bitMatrix.SetRegion(0, 0, 9, 9);
            // Top right finder pattern + separator + format
            bitMatrix.SetRegion(dimension - 8, 0, 8, 9);
            // Bottom left finder pattern + separator + format
            bitMatrix.SetRegion(0, dimension - 8, 9, 8);

            // Alignment patterns
            int max = alignmentPatternCenters.Length;
            for (int x = 0; x < max; x++) {
                int i = alignmentPatternCenters[x] - 2;
                for (int y = 0; y < max; y++) {
                    if ((x == 0 && (y == 0 || y == max - 1)) || (x == max - 1 && y == 0)) {
                        // No alignment patterns near the three finder paterns
                        continue;
                    }
                    bitMatrix.SetRegion(alignmentPatternCenters[y] - 2, i, 5, 5);
                }
            }

            // Vertical timing pattern
            bitMatrix.SetRegion(6, 9, 1, dimension - 17);
            // Horizontal timing pattern
            bitMatrix.SetRegion(9, 6, dimension - 17, 1);

            if (versionNumber > 6) {
                // Version info, top right
                bitMatrix.SetRegion(dimension - 11, 0, 3, 6);
                // Version info, bottom left
                bitMatrix.SetRegion(0, dimension - 11, 6, 3);
            }

            return bitMatrix;
        }