1，最近做了个地图文件输出图片的功能，思想主要就是利用MapControl的ActiveView中的out方法：

2代码如下：欢迎交流指正

1             SaveFileDialog m_save = new SaveFileDialog(); 2             m_save.Filter = "jpeg图片(*.jpg)|*.jpg|tiff图片(*.tif)|*.tif|bmp图片(*.bmp)|*.bmp|emf图片(*.emf)|*.emf|png图片(*.png)|*.png|gif图片(*.gif)|*.gif"; 3             m_save.ShowDialog(); 4             string Outpath = m_save.FileName; 5             if (Outpath != "") 6             { 7                 //分辨率 8                 double resulotion = MapControl.ActiveView.ScreenDisplay.DisplayTransformation.Resolution; 9                 IExport m_export = null;10                 if (Outpath.EndsWith(".jpg"))11                 {12                     m_export = new ExportJPEG() as IExport;13 14                 }15                 else if (Outpath.EndsWith(".tig"))16                 {17                     m_export = new ExportTIFF() as IExport;18 19                 }20                 else if (Outpath.EndsWith(".bmp"))21                 {22                     m_export = new ExportBMP() as IExport;23 24                 }25                 else if (Outpath.EndsWith(".emf"))26                 {27                     m_export = new ExportEMF() as IExport;28                 }29                 else if (Outpath.EndsWith(".png"))30                 {31                     m_export = new ExportPNG() as IExport;32                 }33                 else if (Outpath.EndsWith(".gif"))34                 {35                     m_export = new ExportGIF() as IExport;36                 }37                 //设置输出的路径38                 m_export.ExportFileName = Outpath;39                 //设置输出的分辨率40                 m_export.Resolution = resulotion;41                 tagRECT piexPound;42                 piexPound = MapControl.ActiveView.ScreenDisplay.DisplayTransformation.get_DeviceFrame();43                 IEnvelope m_envelope = new Envelope() as IEnvelope;44                 m_envelope.PutCoords(piexPound.left, piexPound.bottom, piexPound.right, piexPound.top);45                 //设置输出的IEnvelope46                 m_export.PixelBounds = m_envelope;47 48                 ITrackCancel m_trackCancel = new CancelTracker();49                 //输出的方法50                 MapControl.ActiveView.Output(m_export.StartExporting(), (short)resulotion, ref piexPound, MapControl.ActiveView.Extent, m_trackCancel);51                 m_export.FinishExporting();