ARCGISEngine中对文件的打开，保存，另存为的代码实现

最新推荐文章于 2025-06-11 16:27:50 发布

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最新推荐文章于 2025-06-11 16:27:50 发布

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文章标签： ARCGISEngine

本文链接：https://blog.youkuaiyun.com/qq_40323256/article/details/83143124

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本文详细介绍如何使用ArcGIS Engine进行地图文件的打开、保存、另存为以及导出地图的功能实现。通过代码示例，读者可以学习到如何利用ArcGIS Engine控件完成地图文档的读写与转换，并将地图导出为JPG、TIFF或PDF等格式。

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打开文件：

            OpenFileDialog openMXD = new OpenFileDialog();
            openMXD.Title = "打开地图";
            openMXD.InitialDirectory = "E:\\大三上学期实验\\ARCGIS Engine\\实验二（及以上）二次开发\\使用控件创建第一个应用程序\\bin\\Debug\\Map";
            openMXD.Filter = "Map Documents(*.mxd)|*.mxd";
            if (openMXD.ShowDialog() == DialogResult.OK)
            {
                string MxdPath = openMXD.FileName;
                axMapControl1.LoadMxFile(MxdPath);
            }

保存文件：

            try
            {
                IMxdContents pMxdC;
                pMxdC = axMapControl1.Map as IMxdContents;
                IMapDocument pMapDocument = new MapDocumentClass();
                pMapDocument.Open(axMapControl1.DocumentFilename, "");
                IActiveView pActiveView = axMapControl1.Map as IActiveView;
                pMapDocument.ReplaceContents(pMxdC);
                pMapDocument.Save(true, true);
                MessageBox.Show("保存成功！");
            }
            catch (Exception ex)
            {

                throw ex;
            }

另存为：

 OpenFileDialog iOpenFileDialog = new OpenFileDialog();
            iOpenFileDialog.Filter = "地图文档(*.mxd)|*.mxd";


            if (iOpenFileDialog.ShowDialog() == DialogResult.OK)
            {
                string iFilePath = iOpenFileDialog.FileName;
                IMxdContents pMxdC;
                pMxdC = axMapControl1.Map as IMxdContents;
                IMapDocument pMapDocument = new MapDocumentClass();
                pMapDocument.Open(axMapControl1.DocumentFilename, "");
                IActiveView pActiveView = axMapControl1.Map as IActiveView;
                pMapDocument.ReplaceContents(pMxdC);
                pMapDocument.SaveAs(iFilePath, true, true);
            }

导出地图：

            try
            {
                SaveFileDialog pSaveDialog = new SaveFileDialog();
                pSaveDialog.FileName = "";
                pSaveDialog.Filter = "JPG图片(*.JPG)|*.jpg|tif图片(*.tif)|*.tif|PDF文档(*.PDF)|*.pdf";
                if (pSaveDialog.ShowDialog() == DialogResult.OK)
                {
                    double iScreenDispalyResolution = axPageLayoutControl1.ActiveView.ScreenDisplay.DisplayTransformation.Resolution;// 获取屏幕分辨率的值
                    IExporter pExporter = null;
                    if (pSaveDialog.FilterIndex == 1)
                    {
                        pExporter = new JpegExporterClass();
                    }
                    else if (pSaveDialog.FilterIndex == 2)
                    {
                        pExporter = new TiffExporterClass();
                    }
                    else if (pSaveDialog.FilterIndex == 3)
                    {
                        pExporter = new PDFExporterClass();
                    }
                    pExporter.ExportFileName = pSaveDialog.FileName;
                    pExporter.Resolution = (short)iScreenDispalyResolution; //分辨率
                    tagRECT deviceRect = axPageLayoutControl1.ActiveView.ScreenDisplay.DisplayTransformation.get_DeviceFrame();
                    IEnvelope pDeviceEnvelope = new EnvelopeClass();
                    pDeviceEnvelope.PutCoords(deviceRect.left, deviceRect.bottom, deviceRect.right, deviceRect.top);
                    pExporter.PixelBounds = pDeviceEnvelope; // 输出图片的范围
                    ITrackCancel pCancle = new CancelTrackerClass();//可用ESC键取消操作
                    axPageLayoutControl1.ActiveView.Output(pExporter.StartExporting(), pExporter.Resolution, ref deviceRect, axPageLayoutControl1.ActiveView.Extent, pCancle);
                    Application.DoEvents();
                    pExporter.FinishExporting();
                    MessageBox.Show("导出成功！");
                }

            }
            catch (Exception Err)
            {
                MessageBox.Show(Err.Message, "输出图片", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }