C#|Arcengine, C#,输出栅格图片的简单方法

///

/// 地图输出栅格图片的简单方法,返回输出的文件名by yl landgis@126.com

///

///

///

publicstatic stringExportImage(IActiveView pActiveView)

{



SaveFileDialog pSaveFileDialog = new SaveFileDialog();

pSaveFileDialog.Filter = "JPEG(*.jpg)|*.jpg|AI(*.ai)|*.ai|BMP(*.BMP)|*.bmp|EMF(*.emf)|*.emf|GIF(*.gif)|*.gif|PDF(*.pdf)|*.pdf|PNG(*.png)|*.png|EPS(*.eps)|*.eps|SVG(*.svg)|*.svg|TIFF(*.tif)|*.tif";

pSaveFileDialog.Title = "输出地图";

pSaveFileDialog.RestoreDirectory = true;

pSaveFileDialog.FilterIndex = 1;







if (pSaveFileDialog.ShowDialog() != System.Windows.Forms.DialogResult.OK)

{

return null;

}

string FileName = pSaveFileDialog.FileName;



IExport pExporter = null;

switch (pSaveFileDialog.FilterIndex)

{

case 1:

pExporter = new ExportJPEGClass();

break;

case 2:

pExporter = new ExportBMPClass();

break;

case 3:

pExporter = new ExportEMFClass();

break;

case 4:

pExporter = new ExportGIFClass();

break;



case 5:

pExporter = new ExportAIClass();

break;



case 6:

pExporter = new ExportPDFClass();

break;

case 7:

pExporter = new ExportPNGClass();

break;

case 8:

pExporter = new ExportPSClass();

break;

case 9:

pExporter = new ExportSVGClass();

break;

case 10:

pExporter = new ExportTIFFClass();

break;

default:

MessageBox.Show("输出格式错误");

return null;





}







IEnvelope pEnvelope = new EnvelopeClass();

ITrackCancel pTrackCancel = new CancelTrackerClass();



tagRECT ptagRECT;

ptagRECT.left = 0;

ptagRECT.top = 0;

ptagRECT.right = (int)pActiveView.Extent.Width;

ptagRECT.bottom = (int)pActiveView.Extent.Height;



int pResolution = (int)(pActiveView.ScreenDisplay.DisplayTransformation.Resolution);

pEnvelope.PutCoords(ptagRECT.left, ptagRECT.bottom, ptagRECT.right, ptagRECT.top);





pExporter.Resolution = pResolution;

【C#|Arcengine, C#,输出栅格图片的简单方法】pExporter.ExportFileName = FileName;

pExporter.PixelBounds = pEnvelope;



pActiveView.Output(pExporter.StartExporting(), pResolution, ref ptagRECT, pActiveView.Extent, pTrackCancel);

pExporter.FinishExporting();

//释放资源

pSaveFileDialog.Dispose();



System.Runtime.InteropServices.Marshal.ReleaseComObject(pExporter);



return FileName;

}

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