ArcGIS Engine 10 开发手册(10-2)矢量格式地图输出

时间: 2月14日阅读: 888 分类: ArcGIS Engine 10 开发手册标签: ArcGIS, ArcGIS Engine

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正文

矢量格式文件的输出主要是依靠 IExportVector 接口，该接口被以下 5 个类实现：

输出EMF格式

private void ExportEMF ()

{

  IActiveView pActiveView;

  pActiveView = axPageLayoutControl1.ActiveView;
  IExport pExport;

  pExport = new ExportEMFClass ();

  pExport.ExportFileName = @"E:\arcgis\Engine\ExportEMF.emf";
  pExport.Resolution = 300;

  tagRECT exportRECT;

  exportRECT = pActiveView.ExportFrame;
  IEnvelope pPixelBoundsEnv;
  pPixelBoundsEnv = new EnvelopeClass ();

  pPixelBoundsEnv.PutCoords (exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);

  pExport.PixelBounds = pPixelBoundsEnv;
  int hDC;

  hDC = pExport.StartExporting ();
  pActiveView.Output (hDC, (int) pExport.Resolution, ref exportRECT, null, null);

  pExport.FinishExporting ();
  pExport.Cleanup ();

}

输出PDF格式

private void ExportPDF ()

{

  IActiveView pActiveView;

  pActiveView = axPageLayoutControl1.ActiveView;
  IEnvelope pEnv;

  pEnv = pActiveView.Extent;
  IExport pExport;

  pExport = new ExportPDFClass ();

  pExport.ExportFileName = @"E:\arcgis\Engine\ExportPDF.pdf";
  pExport.Resolution = 30;

  tagRECT exportRECT;
  exportRECT.top = 0;

  exportRECT.left = 0;
  exportRECT.right = (int) pEnv.Width;

  exportRECT.bottom = (int) pEnv.Height;
  IEnvelope pPixelBoundsEnv;
  pPixelBoundsEnv = new EnvelopeClass ();

  pPixelBoundsEnv.PutCoords (exportRECT.left, exportRECT.bottom, exportRECT.right, exportRECT.top);

  pExport.PixelBounds = pPixelBoundsEnv;
  int hDC;

  hDC = pExport.StartExporting ();
  pActiveView.Output (hDC, (int) pExport.Resolution, ref exportRECT, null, null);

  pExport.FinishExporting ();
  pExport.Cleanup ();

}