导出当前视图为BMP、JPG、PDF等格式

导出当前视图为BMP、JPG、PDF等格式

public void PageExport()

{

SaveFileDialog pSaveDlg = new SaveFileDialog();

pSaveDlg.Title = "导出图形";

pSaveDlg.DefaultExt = "pdf";

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

pSaveDlg.FilterIndex = 1;

pSaveDlg.RestoreDirectory = true;

pSaveDlg.OverwritePrompt = true;

if (pSaveDlg.ShowDialog() == DialogResult.OK)

{

string pFilePath = pSaveDlg.FileName;

IActiveView pActiveView = AxPageLayoutControl1.ActiveView;

IExport pExport;

tagRECT exportFrame;

IEnvelope pEnv;

int hdc;

int dpi;

exportFrame = pActiveView.ExportFrame;

pEnv = new EnvelopeClass();

pEnv.PutCoords(exportFrame.left, exportFrame.top, exportFrame.right, exportFrame.bottom);

switch (pSaveDlg.FilterIndex)

{

case 1://pdf

pExport = new ExportPDFClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

case 2://tif

pExport = new ExportTIFFClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

case 3://bmp

pExport = new ExportBMPClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

case 4://jpg

pExport = new ExportJPEGClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

case 5://gif

pExport = new ExportGIFClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

case 6://emf

pExport = new ExportEMFClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

case 7://svg

pExport = new ExportSVGClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

case 8://ai

pExport = new ExportAIClass();

dpi = (int)pExport.Resolution;

pExport.PixelBounds = pEnv;

pExport.ExportFileName = pSaveDlg.FileName;

pExport.Resolution = (short)dpi;

hdc = pExport.StartExporting();

pActiveView.Output(hdc, dpi, ref exportFrame, null, null);

pExport.FinishExporting();

break;

default:

break;

}

MessageBox.Show("导出完毕！");

}

视图导出主要用到IExport 接口，在旧版本中采用IExporter接口，AE9以后替代为IExport，而且导出的类型也有增加。