C#的Winform通过GDI+以及Datatable绘制基于CSV文件的风羽图

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing.Text;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.TextBox;
using System.Net.NetworkInformation;
using System.IO;
using System.Runtime.CompilerServices;

namespace XY
{
    internal class feng
    {
        public static void DrawXY(Panel pan)
        {
            Graphics g = pan.CreateGraphics();
            //整体内缩move像素
            float move = 35f;
            float newX = pan.Width - move;
            float newY = pan.Height - move;

            //绘制X轴,
            PointF px1 = new PointF(move, newY);
            PointF px2 = new PointF(newX, newY);
            g.DrawLine(new Pen(Brushes.Black, 2), px1, px2);
            //绘制Y轴
            PointF py1 = new PointF(move, move);
            PointF py2 = new PointF(move, newY);

            g.DrawLine(new Pen(Brushes.Black, 2), py1, py2);
        }
        /// <summary>
        /// 画出X轴上的分值线，从零开始
        /// </summary>
        /// <param name="pan"></param>
        /// <param name="maxX"></param>
        /// <param name="len"></param>
        public static void DrawXLine(Panel pan, float maxX, int len, DataTable dt)
        {
            int h = 25;
            int z = 13;
            int s = 12;
            float move = 35f;
            float LenX = pan.Width - 2 * move;
            float LenY = pan.Height - 2 * move;
            Graphics g = pan.CreateGraphics();
            g.SmoothingMode = SmoothingMode.AntiAlias;
            len = 90;
            Pen pen = new Pen(Color.Black, 1);
            for (int j = 1; j <= 24; j++)
            {
                for (int i = 1; i <= len; i++)
                {
                    if (Convert.ToDouble(dt.Rows[i][s]) <= 2)
                    {
                        g.TranslateTransform(LenX * i / len + move + 1, LenY * (h - j) / h + move);
                        // 旋转画板
                        g.RotateTransform(float.Parse((dt.Rows[i][z]).ToString()));
                        g.TranslateTransform(-LenX * i / len - move - 1, -LenY * (h - j) / h - move);
                        g.DrawLine(pen, LenX * i / len + move - 3, LenY * (h - j) / h + move - 7, LenX * i / len + move - 3, LenY * (h - j) / h + move + 7);//添加竖直线
                        g.DrawLine(pen, LenX * i / len + move - 3, LenY * (h - j) / h + move - 7, LenX * i / len + move + 1, LenY * (h - j) /h + move + 7);//添加横直线
                        g.ResetTransform();
                    }
                    if (2 < Convert.ToDouble(dt.Rows[i][s]) && Convert.ToDouble(dt.Rows[i][s]) <= 4)
                    {
                        g.TranslateTransform(LenX * i / len + move +1, LenY * (h - j) / h + move);
                        // 旋转画板
                        g.RotateTransform(float.Parse((dt.Rows[i][z]).ToString()));
                        g.TranslateTransform(-LenX * i / len - move -1, -LenY * (h - j) / h - move);
                        g.DrawLine(pen, LenX * i / len + move - 3, LenY * (h - j) / h + move - 7, LenX * i/ len + move - 3, LenY * (h - j) / h + move + 7);//添加竖直线
                        g.DrawLine(pen, LenX * i / len + move - 3, LenY * (h - j) / h + move - 7, LenX * i/ len + move + 5, LenY * (h - j) / h + move - 7);
                        g.ResetTransform();
                    }
                    if (4 < Convert.ToDouble(dt.Rows[i][s]) && Convert.ToDouble(dt.Rows[i][s]) <= 6)
                    {
                        g.TranslateTransform(LenX * i / len + move + 1, LenY * (h - j) / h + move);
                        // 旋转画板
                        g.RotateTransform(float.Parse((dt.Rows[i][z]).ToString()));
                        g.TranslateTransform(-LenX * i / len - move - 1, -LenY * (h - j) / h - move);
                        g.DrawLine(pen, LenX * i / len + move - 3, LenY * (h - j) / h + move - 7, LenX * i / len + move - 3, LenY * (h - j) / h + move + 7);//添加竖直线