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IEnvelope 46 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();