Excel row of high pixel values, the transition between the pixel values of column width, pixel painting drawn Excel.

Disclaimer: This article is a blogger original article, follow the CC 4.0 BY-SA copyright agreement, reproduced, please attach the original source link and this statement.

This link: https://blog.csdn.net/chenxiaotao22/article/details/101358737

private static float GetDpiX()
{
    try
    {
        using (Bitmap image = new Bitmap(1, 1))
        {
            using (Graphics graphics = Graphics.FromImage(image))
            {
                return graphics.DpiX;
            }
        }
    }
    catch
    {
        return 72;
    }
}

Incoming pixel numPixel

int numPixel = (int)numericUpDown1.Value;
Bitmap image = ConvertToFormat(fileImage.Image, PixelFormat.Format24bppRgb);
//Bitmap image = (Bitmap)fileImage.Image;
g = pictureBox1.CreateGraphics();


double rowHeight = (double)((float)numPixel * 72f / (float)GetDpiX());
                 
for (int i = 0; i < 100; i++)
{


    double colWidth = Math.Round((numPixel < 12 ? (numPixel / 12.00) : (1 + ((numPixel - 12) / 7.00))), 2);
    int _numPixel = (int)Math.Round(colWidth < 1 ? colWidth * 12.0 : 12 + (colWidth - 1) * 7.00); 
    Console.WriteLine(string.Format($"{numPixel}  {colWidth}   {_numPixel}"));
    numPixel = numPixel + 1;
    //double width = (double)((float)numPixel * 72f / (float)GetDpiX());
}

 100 prints out the comparison which excel

 

1	0.08
2	0.17
3	0.25
4	0.33
5	0.42
6	0.5
7	0.58
8	0.67
9	0.75
10	0.83
11	0.92
12	1
13	1.14
14	1.29
15	1.43
16	1.57
17	1.71
18	1.86
19	2
20	2.14
21	2.29
22	2.43
23	2.57
24	2.71
25	2.86
26	3
27	3.14
28	3.29
29	3.43
30	3.57
31	3.71
32	3.86
33	4
34	4.14
35	4.29
36	4.43
37	4.57
38	4.71
39	4.86
40	5
41	5.14
42	5.29
43	5.43
44	5.57
45	5.71
46	5.86
47	6
48	6.14
49	6.29
50	6.43
51	6.57
52	6.71
53	6.86
54	7
55	7.14
56	7.29
57	7.43
58	7.57
59	7.71
60	7.86
61	8
62	8.14
63	8.29
64	8.43
65	8.57
66	8.71
67	8.86
68	9
69	9.14
70	9.29
71	9.43
72	9.57
73	9.71
74	9.86
75	10
76	10.14
77	10.29
78	10.43
79	10.57
80	10.71
81	10.86
82	11
83	11.14
84	11.29
85	11.43
86	11.57
87	11.71
88	11.86
89	12
90	12.14
91	12.29
92	12.43
93	12.57
94	12.71
95	12.86
96	13
97	13.14
98	13.29
99	13.43
100	13.57