C# Sharpmap加载tif 加载png

思路很简单，使用这两个方法打开之后加载进图层即可。

GdalRasterLayer layGdal = new SharpMap.Layers.GdalRasterLayer("test", @"G:\testTif.Tif");

 var l = new SharpMap.Layers.GdiImageLayer(ofd.FileName);

 mainMapBox.Map.Layers.Add(layGdal);

完整代码和效果如下:

private void 打开tifToolStripMenuItem_Click(object sender, EventArgs e)
        {
            GdalRasterLayer layGdal = new SharpMap.Layers.GdalRasterLayer("test", @"G:\testTif.Tif");

            Console.WriteLine(layGdal.SRID);
            layGdal.SRID = 7;

            Console.WriteLine(layGdal.SRID);
            mainMapBox.Map.Layers.Add(layGdal);
            mainMapBox.Map.ZoomToExtents();
            mainMapBox.Refresh();
            mainMapBox.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;
        }

        private void 打开jpgToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //打开png
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = "All files|*.*";
            if (ofd.ShowDialog()==System.Windows.Forms.DialogResult.OK)
            {
                mainMapBox.Map.Layers.Clear();
                var l = new SharpMap.Layers.GdiImageLayer(ofd.FileName);
                mainMapBox.Map.Layers.Add(l);
                //float angle = 0;
                mainMapBox.Map.ZoomToExtents();

                //var mat = new System.Drawing.Drawing2D.Matrix();
                //mat.RotateAt(angle,mainMapBox.Map.WorldToImage(mainMapBox.Map.Center));
                //mainMapBox.Map.MapTransform = mat;
                //mainMapBox.Map.MaximumExtents = mainMapBox.Map.GetExtents();
                //mainMapBox.Map.EnforceMaximumExtents = true;
                mainMapBox.Map.ZoomToExtents();
                mainMapBox.Refresh();
                mainMapBox.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;
            }
        }