/// <summary>
/// 高德瓦片地图为索引图，需要先转化为RGB图像，并进行二值化
/// </summary>
/// <param name="path">路径（E:\\AMap20171110\\tiles\\17）</param>
/// <returns></returns>
public WebApiResult <string> GaodeErzhihua(GaodeErzhihuaRequest Result)
{
try
{
//高德地图瓦片相关信息获取
String FilePath = Result.FilePath;// "E:\\AMap20171110\\tiles\\17";
//String FilePath = "F:\\000";
DirectoryInfo TheFolder = new DirectoryInfo(FilePath);
FileInfo[] file_list = GetFileList(TheFolder);
//List<Point> TilePoints = GetTileCoor(file_list);
for (int i = 0; i < file_list.Length; i++)
{
string level = file_list[i].DirectoryName.Substring(0, file_list[i].DirectoryName.LastIndexOf("\\"));
level = level.Substring(level.LastIndexOf("\\"));
String savedir = Result.FilePath + "$erzhihua" + file_list[i].DirectoryName.Substring(file_list[i].DirectoryName.LastIndexOf("\\"));
if (!Directory.Exists(savedir))
{
Directory.CreateDirectory(savedir);
}
String savepath = savedir + "\\" + file_list[i].Name.Substring(0, file_list[i].Name.LastIndexOf(".") + 1) + "jpg";
if (File.Exists(savepath))
{
continue;
//File.Delete(savepath);
}
Bitmap amtile = (Bitmap)Bitmap.FromFile(file_list[i].FullName);
//如果原图片是索引像素格式之类的，则需要转换
if (IsPixelFormatIndexed(amtile.PixelFormat) || amtile.PixelFormat == PixelFormat.Format32bppArgb)
{
using (Bitmap bmp = new Bitmap(amtile.Width, amtile.Height, PixelFormat.Format32bppArgb))
{
using (Graphics g = Graphics.FromImage(bmp))
{
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.DrawImage(amtile, 0, 0);
}
amtile = (Bitmap)bmp.Clone();
}
}
if (Result.IsRoad == true)
{
//二值化
for (int m = 0; m < amtile.Height; m++)
{
for (int n = 0; n < amtile.Width; n++)
{
Color color = amtile.GetPixel(m, n);
Color newcolor;
if (color == Color.FromArgb(252, 249, 242))//高德地图北京颜色
{
newcolor = Color.FromArgb(0, 0, 0);
}
else
{
newcolor = Color.FromArgb(255, 255, 255);
}
amtile.SetPixel(m, n, newcolor);
}
}
}
amtile.Save(savepath, ImageFormat.Jpeg);
}
return(new WebApiResult <string>()
{
success = 1, msg = "高德瓦片二值化完成！"
});
}
catch (Exception ex)
{
return(new WebApiResult <string>()
{
success = 0, msg = ex.ToString()
});
}
}
/// <summary>
/// 高德瓦片地图为索引图，需要先转化为RGB图像，并进行二值化
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public WebApiResult <string> Any(GaodeErzhihuaRequest request)
{
ImageMosaicService service = new ImageMosaicService();
return(service.GaodeErzhihua(request));
}
