public Coordnate ConvertStringToCoord(string text)
        {
            string[]  coordArray = text.Split(',');
            double    lon        = double.Parse(coordArray[0]);
            double    lat        = double.Parse(coordArray[1]);
            Coordnate coordnate  = new Coordnate(lon, lat);

            return(coordnate);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            List <string> cornerCoor = new List <string>();

            string leftTop     = (textBox1.Text);
            string rightTop    = (textBox2.Text);
            string leftBottom  = (textBox3.Text);
            string rightBottom = (textBox4.Text);
            int    zoom        = int.Parse(textBox5.Text);

            //string leftTop = "117.199115,33.18152,11";
            //string rightTop = "120.495013,33.071111,11";
            //string leftBottom = "121.022357,29.857611,11";
            //string rightBottom = "115.573138,29.360927,11";
            //int zoom = 13;
            cornerCoor.Add(leftTop);
            cornerCoor.Add(rightTop);
            cornerCoor.Add(leftBottom);
            cornerCoor.Add(rightBottom);


            for (int i = 11; i <= zoom; i++)
            {
                List <Tile> tiles = new List <Tile>();
                string      path  = textBox6.Text + '\\' + i.ToString();
                string      dest  = textBox7.Text;
                //string path = @"G:\DB\DATA\Img" + '\\' + i.ToString();
                //string dest = @"G:\DB\copyImag\";
                foreach (var item in cornerCoor)
                {
                    Coordnate coordnate = Helper.ConvertStringToCoord(item);
                    Tile      tile      = Helper.deg2Num(coordnate.Lon, coordnate.Lat, i);//传入坐标和zoom获取瓦片
                    tiles.Add(tile);
                }
                RectangleTile rectangleTile = new RectangleTile(tiles);
                int           xmin          = rectangleTile.xmin;
                int           xmax          = rectangleTile.xmax;
                int           ymin          = rectangleTile.ymin;
                int           ymax          = rectangleTile.ymax;
                for (int j = xmin; j < xmax; j++)
                {
                    for (int q = ymin; q < ymax; q++)
                    {
                        if (j == 1696 && q == 824)
                        {
                        }
                        ;
                        string copypath = path + '\\' + j + '\\' + q + ".png";
                        string destPath = dest + i + '\\' + j + '\\' + q + ".png";
                        string destDir  = dest + i + '\\' + j;
                        if (File.Exists(copypath))
                        {
                            DirectoryHelper.MakeDirectory(destDir);
                            File.Copy(copypath, destPath, true);
                        }
                    }
                }

                MessageBox.Show($"{i}级完成");
            }
            MessageBox.Show("复制完成");
        }