Ejemplo n.º 1
0
        private void button1_Click(object sender, EventArgs e)
        {
            RectangleF       rectf = gen.GeoEnvelope2Viewport(new Envelope(-180, -90, 180, 90));
            RectangleF       fullRect = new RectangleF(-20037510f, -19993420, 40075020f, 39986840f);
            TileSystemHelper h = new TileSystemHelper(rectf, new Size(256, 256), 20);
            int totalWidth = 0, totalHeight = 0;

            TileDef[] tiles = h.ComputeTiles(2, new RectangleF(-20037510f, -19993420, 40075020f, 39986840f), out totalWidth, out totalHeight);;
            foreach (TileDef tile in tiles)
            {
                Size       size = new Size(256, 256);
                Image      img  = new Bitmap(size.Width, size.Height);
                RectangleF rect = gen.GetMapImage(tile.Rect, size, ref img);
                img.Save("d:\\temp\\" + tile.Quadkey + ".png", ImageFormat.Png);
            }
        }
Ejemplo n.º 2
0
 private void GetMapImageInternal(string fname, double x,
                                  double y,
                                  double width,
                                  double height,
                                  int targetWidth,
                                  int targetHeight,
                                  string[] invisibleLayerIds,
                                  out RectangleF retRectangleF, out Image retImage, out string retFilename)
 {
     try
     {
         /*
          * 转换投影坐标的最小值为-Max
          */
         y = -(y + height);
         if (string.IsNullOrEmpty(fname))
         {
             fname = System.IO.Path.Combine(_outputdir, Guid.NewGuid().ToString() + _outputImageExtname);
         }
         RectangleF vf   = new RectangleF((float)x, (float)y, (float)width, (float)height);
         Size       size = new Size(targetWidth, targetHeight);
         retImage = new Bitmap(size.Width, size.Height);
         List <ILayerDrawable> disLayers = TrySetInvisableOfLayers(invisibleLayerIds);
         try
         {
             retRectangleF = _gen.GetMapImage(vf, size, ref retImage);
             float y1 = -retRectangleF.Y;
             float y2 = -(retRectangleF.Y + retRectangleF.Height);
             retRectangleF = new RectangleF((float)retRectangleF.X, Math.Min(y1, y2), retRectangleF.Width, retRectangleF.Height);
             retFilename   = fname;
         }
         finally
         {
             TryResetVisible(disLayers);
         }
     }
     catch (Exception ex)
     {
         retRectangleF = RectangleF.Empty;
         retImage      = null;
         retFilename   = null;
         Log.WriterException(ex);
     }
 }