Beispiel #1
0
        private void barButtonItem5_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            OpenFileDialog openDLG = new OpenFileDialog();                                                                       //创建打开文件对话框

            openDLG.Title  = "open Shape File";                                                                                  //  给对话框的标题赋值
            openDLG.Filter = "Raster File(*.*)|*.bmp;*.tif;*.jpg;*.img|(*.bmp)|*.bmp|(*.jpg)|*.jpg|(*.tif)|*.tif|(*.img)|*.img"; // 设定对话框可以打开的文件类型,文件后缀分别为*.bmp;*.tif;*.jpg;*.img
            if (openDLG.ShowDialog() == DialogResult.OK)                                                                         // 打开对话框,若对话框操作选择文件完成后选择的是ok按钮,则执行下面的代码
            {
                string sFilePath = openDLG.FileName;                                                                             //   获取选择的文件的路径和名称
                int    index     = sFilePath.LastIndexOf("\\");                                                                  // 判定文件名字符串中的最后一个“\”符号的位置

                string            sPath             = sFilePath.Substring(0, index);                                             //截取文件路径
                string            sFileName         = sFilePath.Substring(index + 1);                                            //截取文件名称
                IWorkspaceFactory pWorkspaceFectory = new RasterWorkspaceFactory();                                              //创建能打开栅格数据文件的工作空间工厂对象
                IWorkspace        pWorkspace        = pWorkspaceFectory.OpenFromFile(sPath, 0);                                  // 用工作空间工厂对象将栅格文件所在的文件夹打开,作为工作空间对象
                IRasterWorkspace  pRasterWorkspace  = pWorkspace as IRasterWorkspace;                                            // 将工作空间接口转换为 栅格工作空间接口
                IRasterDataset    pRasterDataset    = pRasterWorkspace.OpenRasterDataset(sFileName);                             // 调用栅格工作空间接口的OpenRasterDataset方法打开指定的栅格数据集

                ILayer       pLayer       = new RasterLayer();                                                                   // 创建一个栅格层
                IRasterLayer pRasterLayer = pLayer as IRasterLayer;                                                              // 获得栅格层接口对象
                pRasterLayer.CreateFromDataset(pRasterDataset);                                                                  //根据刚才打开的栅格数据集进行栅格图层的创建

                axMapControl1.Map.AddLayer(pLayer);                                                                              //将栅格层添加到地图控件的地图中
                axMapControl1.ActiveView.Refresh();                                                                              //刷新地图
            }
            //添加栅格数据
        }
Beispiel #2
0
        public override void OnDblClick()
        {
            IMapControl3 pMapCtrl = ClsGlobal.GetMapControl(m_hookHelper);

            if (pMapCtrl == null)
            {
                if (m_NewPolygonFeedback != null)
                {
                    m_NewPolygonFeedback.Stop();
                    m_NewPolygonFeedback = null;
                    return;
                }
            }
            IGeometry pGeometry = m_NewPolygonFeedback.Stop();

            m_NewPolygonFeedback = null;
            if (pGeometry == null)
            {
                return;
            }

            m_pClipPolygon = pGeometry as IPolygon;
            double dbNoDataValue = m_pFrmSetRasterNoDataValue.NoDataValue;

            //获取到无效值区域、无效值、栅格数据之后,开始设置
            ClsSetRasterRegionToDataValue pSetRasterToNoDataValue = new ClsSetRasterRegionToDataValue(m_pRasterLayer.Raster, m_pClipPolygon, dbNoDataValue);

            if (!pSetRasterToNoDataValue.SetRegionToNoDataValue())
            {
                MessageBox.Show("设置无效值出错!");
            }
            else
            {
                //MessageBox.Show("设置无效值成功!");
                //重新加载栅格数据
                try
                {
                    IRaster2        pSrcRaster2        = m_pRasterLayer.Raster as IRaster2;
                    IRasterDataset  pDstRasterDataset  = pSrcRaster2.RasterDataset;
                    IRasterPyramid3 pDstRasterPyramid3 = pDstRasterDataset as IRasterPyramid3;
                    if (pDstRasterPyramid3.Present)
                    {
                        IDataLayer2 pDataLayer = m_pRasterLayer as IDataLayer2;
                        pDataLayer.Disconnect();
                        pDstRasterPyramid3.DeletePyramid();
                        pDstRasterPyramid3.Create();
                        m_pRasterLayer.CreateFromDataset(pDstRasterDataset);
                    }

                    IMapControl3 pMapControl3 = ClsGlobal.GetMapControl(m_hookHelper);
                    pMapControl3.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
                }
                catch (System.Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }
            base.OnDblClick();
        }
        /// <summary>
        /// Occurs when this command is clicked
        /// </summary>
        public override void OnClick()
        {
            // TODO: Add CmdRasterResample.OnClick implementation
            IMapControl2 pMapCtr = (((IToolbarControl)m_hookHelper.Hook).Buddy) as IMapControl2;

            if (pMapCtr != null)
            {
                m_frmRasterResample = new FrmRasterResample();
                IRasterProps pRasterProps = pRasterLayer.Raster as IRasterProps;
                m_frmRasterResample.Cellsize = pRasterProps.MeanCellSize().X;
                if (m_frmRasterResample.ShowDialog() == DialogResult.OK)
                {
                    IGeoDataset         pGeodataset         = pRasterLayer.Raster as IGeoDataset;
                    IRasterGeometryProc pRasterGeometryProc = new RasterGeometryProcClass();
                    ITransformationOp   pTransOP            = new RasterTransformationOpClass();
                    string name = pRasterLayer.Name;
                    if (m_frmRasterResample.resampleType == 0)
                    {
                        IGeoDataset pGeodataset2 = pTransOP.Resample(pGeodataset, m_frmRasterResample.Cellsize, esriGeoAnalysisResampleEnum.esriGeoAnalysisResampleNearest);
                        pRasterLayer.CreateFromDataset(pGeodataset2 as IRasterDataset);
                        pRasterLayer.Name = name;
                    }
                    if (m_frmRasterResample.resampleType == 1)
                    {
                        IGeoDataset pGeodataset2 = pTransOP.Resample(pGeodataset, m_frmRasterResample.Cellsize, esriGeoAnalysisResampleEnum.esriGeoAnalysisResampleBilinear);
                        pRasterLayer.CreateFromDataset(pGeodataset2 as IRasterDataset);
                        pRasterLayer.Name = name;
                    }
                    if (m_frmRasterResample.resampleType == 2)
                    {
                        IGeoDataset pGeodataset2 = pTransOP.Resample(pGeodataset, m_frmRasterResample.Cellsize, esriGeoAnalysisResampleEnum.esriGeoAnalysisResampleCubic);
                        pRasterLayer.CreateFromDataset(pGeodataset2 as IRasterDataset);
                        pRasterLayer.Name = name;
                    }
                    pMapCtr.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewAll, null, null);
                }
            }
        }
Beispiel #4
0
        /// <summary>
        /// Occurs when this command is clicked
        /// </summary>
        public override void OnClick()
        {
            // TODO: Add CmdRasterTransZ.OnClick implementation
            IMapControl3 pMapCtr = (((IToolbarControl)m_hookHelper.Hook).Buddy) as IMapControl3;

            if (pMapCtr != null)
            {
                FrmRasterTransZ m_frmRasterTranZ = new FrmRasterTransZ();
                if (m_frmRasterTranZ.ShowDialog() == DialogResult.OK)
                {
                    if (m_frmRasterTranZ.istrue == true)
                    {
                        ClsRasterOp     pRasterOp      = new ClsRasterOp();
                        IRaster2        pRaster2       = pRasterLayer.Raster as IRaster2;
                        IRasterDataset2 pRasterDataset = pRaster2.RasterDataset as IRasterDataset2;
                        pRasterOp.ChangeRasterValue(pRasterDataset, m_frmRasterTranZ.a, m_frmRasterTranZ.b);
                        //此处要判断图层是否存在金字塔,如果存在则需要重新创建
                        IRasterPyramid3 pDstRasterPyramid3 = pRasterDataset as IRasterPyramid3;
                        if (pDstRasterPyramid3.Present)
                        {
                            IDataLayer2 pDataLayer = pRasterLayer as IDataLayer2;
                            pDataLayer.Disconnect();

                            pDstRasterPyramid3.DeletePyramid();
                            pDstRasterPyramid3.Create();

                            pRasterLayer.CreateFromDataset(pRasterDataset);
                        }
                        //更新图层渲染方式
                        ChangeStrechRender(pRasterLayer);
                        pMapCtr.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
                        if (m_axTocControl != null)
                        {
                            m_axTocControl.SetBuddyControl(pMapCtr);
                            m_axTocControl.Update();
                            m_axTocControl.ActiveView.Refresh();
                        }
                    }
                }
            }
        }
Beispiel #5
0
        private bool ExportLayers(IMapDocument mapDoc, string strGdbName, bool bLayerSpatial)
        {
            //打开GDB工作空间
            ClsGDBDataCommon cls = new ClsGDBDataCommon();
            //IWorkspace wks = (IWorkspace)cls.OpenFromFileGDB(strGdbName);
            IWorkspace2 wksFeature = (IWorkspace2)cls.OpenFromFileGDB(strGdbName);

            if (wksFeature == null)
            {
                return(false);
            }

            IWorkspaceFactory pWSF      = new RasterWorkspaceFactoryClass();
            IWorkspace        wksRaster = pWSF.OpenFromFile(System.IO.Path.GetDirectoryName(mapDoc.DocumentFilename), 0);

            if (wksRaster == null)
            {
                return(false);
            }

            for (int i = 0; i < mapDoc.MapCount; i++)
            {
                IMap map = mapDoc.get_Map(i);
                if (map == null)
                {
                    continue;
                }
                ILayer     layer      = null;
                IEnumLayer pEnumLayer = map.get_Layers(null, true);
                pEnumLayer.Reset();
                while ((layer = pEnumLayer.Next()) != null)
                {
                    //只导出可见图层
                    if (chkExportVisible.Checked == true)
                    {
                        if (layer.Visible == false)
                        {
                            map.DeleteLayer(layer);
                            continue;
                        }
                    }

                    this.labelExport.Text = "导出:" + layer.Name;
                    this.labelExport.Refresh();
                    if (layer is IFeatureLayer)
                    {
                        IFeatureClass featureClassNew = CopyFeatureClassToWorkspace(map, layer, wksFeature, bLayerSpatial);
                        if (featureClassNew != null)
                        {
                            //拷贝完成重设数据源
                            cls.SetdataSourceOfFeatureLayer(layer, featureClassNew);
                        }
                        else
                        {
                            continue;
                        }
                    }
                    else if (layer is IRasterLayer)
                    {
                        IRasterDataset rasterDatasetNew = CopyRasterToWorkspace(map, layer, wksRaster, bLayerSpatial);
                        if (rasterDatasetNew != null)
                        {
                            //拷贝完成重设数据源
                            IRasterLayer rasterLayer = layer as IRasterLayer;
                            rasterLayer.CreateFromDataset(rasterDatasetNew);
                        }
                        else
                        {
                            continue;
                        }
                    }
                }
            }
            this.labelExport.Text = "导出完成!";
            return(true);
        }
Beispiel #6
0
        private void method_3(object object_0)
        {
            frmOpenFile file = new frmOpenFile
            {
                Text             = "添加数据",
                AllowMultiSelect = true
            };

            file.AddFilter(new MyGxFilterDatasets(), true);
            if (file.DoModalOpen() == DialogResult.OK)
            {
                IFeatureClass featureClass;
                IFeatureLayer layer;
                System.Windows.Forms.Cursor.Current = Cursors.WaitCursor;
                IArray array = new ArrayClass();
                IArray items = file.Items;
                int    index = 0;
                while (true)
                {
                    if (index >= items.Count)
                    {
                        break;
                    }
                    IGxDataset dataset = items.get_Element(index) as IGxDataset;
                    if (dataset != null)
                    {
                        IDataset dataset2 = dataset.Dataset;
                        if (dataset2 != null)
                        {
                            if (dataset2.Type == esriDatasetType.esriDTFeatureClass)
                            {
                                featureClass = (IFeatureClass)dataset2;
                                if (featureClass.FeatureType == esriFeatureType.esriFTAnnotation)
                                {
                                    layer = new FDOGraphicsLayerClass
                                    {
                                        FeatureClass = featureClass,
                                        Name         = featureClass.AliasName
                                    };
                                }
                                else
                                {
                                    layer = new FeatureLayerClass
                                    {
                                        FeatureClass = featureClass,
                                        Name         = featureClass.AliasName
                                    };
                                }
                                array.Add(layer);
                            }
                            else
                            {
                                IFDOGraphicsLayerFactory factory;
                                if (dataset2.Type == esriDatasetType.esriDTCadDrawing)
                                {
                                    IEnumGxObject children = (dataset as IGxObjectContainer).Children;
                                    children.Reset();
                                    for (IGxDataset dataset3 = children.Next() as IGxDataset;
                                         dataset3 != null;
                                         dataset3 = children.Next() as IGxDataset)
                                    {
                                        featureClass = dataset3.Dataset as IFeatureClass;
                                        if (featureClass.FeatureType == esriFeatureType.esriFTAnnotation)
                                        {
                                            factory = new FDOGraphicsLayerFactoryClass();
                                            layer   =
                                                (IFeatureLayer)
                                                factory.OpenGraphicsLayer(
                                                    (IFeatureWorkspace)featureClass.FeatureDataset.Workspace,
                                                    featureClass.FeatureDataset, featureClass.AliasName);
                                        }
                                        else
                                        {
                                            layer = new FeatureLayerClass
                                            {
                                                FeatureClass = featureClass,
                                                Name         = featureClass.AliasName
                                            };
                                        }
                                        array.Add(layer);
                                    }
                                }
                                else if (dataset2.Type == esriDatasetType.esriDTFeatureDataset)
                                {
                                    IFeatureClassContainer container = (IFeatureClassContainer)dataset2;
                                    index = 0;
                                    while (index < (container.ClassCount - 1))
                                    {
                                        featureClass = container.get_Class(index);
                                        if (featureClass.FeatureType == esriFeatureType.esriFTAnnotation)
                                        {
                                            factory = new FDOGraphicsLayerFactoryClass();
                                            layer   =
                                                (IFeatureLayer)
                                                factory.OpenGraphicsLayer(
                                                    (IFeatureWorkspace)featureClass.FeatureDataset.Workspace,
                                                    featureClass.FeatureDataset, featureClass.AliasName);
                                        }
                                        else
                                        {
                                            layer = new FeatureLayerClass
                                            {
                                                FeatureClass = featureClass,
                                                Name         = featureClass.AliasName
                                            };
                                        }
                                        array.Add(layer);
                                        index++;
                                    }
                                }
                                else if (dataset2.Type == esriDatasetType.esriDTTin)
                                {
                                    ITinLayer unk = new TinLayerClass
                                    {
                                        Dataset = (ITin)dataset2,
                                        Name    = dataset2.Name
                                    };
                                    array.Add(unk);
                                }
                                else if ((dataset2.Type == esriDatasetType.esriDTRasterDataset) ||
                                         (dataset2.Type == esriDatasetType.esriDTRasterBand))
                                {
                                    bool flag = true;
                                    if (!((IRasterPyramid)dataset2).Present)
                                    {
                                        if (ApplicationRef.PyramidPromptType == PyramidPromptType.AlwaysBuildNoPrompt)
                                        {
                                            ((IRasterPyramid)dataset2).Create();
                                        }
                                        else if (ApplicationRef.PyramidPromptType == PyramidPromptType.AlwaysPrompt)
                                        {
                                            switch (BuildPyramidSet.Show())
                                            {
                                            case DialogResult.Yes:
                                                ((IRasterPyramid)dataset2).Create();
                                                break;

                                            case DialogResult.Cancel:
                                                flag = false;
                                                break;
                                            }
                                        }
                                    }
                                    if (flag)
                                    {
                                        RasterLayerClass class3 = new RasterLayerClass
                                        {
                                            Cached = true
                                        };
                                        IRasterLayer layer3 = class3;
                                        layer3.CreateFromDataset((IRasterDataset)dataset2);
                                        layer3.Name = dataset2.Name;
                                        array.Add(layer3);
                                    }
                                }
                                else if (dataset2.Type == esriDatasetType.esriDTTable)
                                {
                                    try
                                    {
                                        IRasterCatalogTable pCatalog = new RasterCatalogTableClass
                                        {
                                            Table = (ITable)dataset2
                                        };
                                        pCatalog.Update();
                                        IRasterCatalogLayer layer4 = new RasterCatalogLayerClass();
                                        layer4.Create(pCatalog);
                                        layer4.Name = dataset2.BrowseName;
                                        array.Add(layer4);
                                    }
                                    catch
                                    {
                                    }
                                }
                            }
                        }
                    }
                    index++;
                }
                int    count  = array.Count;
                ILayer layer5 = null;
                for (index = count - 1; index >= 0; index--)
                {
                    layer5 = array.get_Element(index) as ILayer;
                    if (layer5 is IRasterCatalogLayer)
                    {
                        if (object_0 is IMap)
                        {
                            (object_0 as IMap).AddLayer(layer5);
                        }
                        else if (object_0 is IGroupLayer)
                        {
                            (object_0 as IGroupLayer).Add(layer5);
                        }
                        array.Remove(index);
                        count--;
                    }
                }
                for (index = count - 1; index >= 0; index--)
                {
                    layer5 = array.get_Element(index) as ILayer;
                    if (layer5 is IRasterLayer)
                    {
                        if (object_0 is IMap)
                        {
                            (object_0 as IMap).AddLayer(layer5);
                        }
                        else if (object_0 is IGroupLayer)
                        {
                            (object_0 as IGroupLayer).Add(layer5);
                        }
                        array.Remove(index);
                        count--;
                    }
                }
                for (index = count - 1; index >= 0; index--)
                {
                    layer5 = array.get_Element(index) as ILayer;
                    if (layer5 is ITinLayer)
                    {
                        if (object_0 is IMap)
                        {
                            (object_0 as IMap).AddLayer(layer5);
                        }
                        else if (object_0 is IGroupLayer)
                        {
                            (object_0 as IGroupLayer).Add(layer5);
                        }
                        array.Remove(index);
                        count--;
                    }
                }
                for (index = count - 1; index >= 0; index--)
                {
                    layer5 = array.get_Element(index) as ILayer;
                    if (layer5 is IFeatureLayer)
                    {
                        layer        = layer5 as IFeatureLayer;
                        featureClass = layer.FeatureClass;
                        if ((featureClass.ShapeType == esriGeometryType.esriGeometryPolygon) ||
                            (featureClass.ShapeType == esriGeometryType.esriGeometryEnvelope))
                        {
                            if (object_0 is IMap)
                            {
                                (object_0 as IMap).AddLayer(layer5);
                            }
                            else if (object_0 is IGroupLayer)
                            {
                                (object_0 as IGroupLayer).Add(layer5);
                            }
                            array.Remove(index);
                            count--;
                        }
                    }
                }
                for (index = count - 1; index >= 0; index--)
                {
                    layer5 = array.get_Element(index) as ILayer;
                    if (layer5 is IFeatureLayer)
                    {
                        layer        = layer5 as IFeatureLayer;
                        featureClass = layer.FeatureClass;
                        if (((((featureClass.ShapeType == esriGeometryType.esriGeometryLine) ||
                               (featureClass.ShapeType == esriGeometryType.esriGeometryBezier3Curve)) ||
                              ((featureClass.ShapeType == esriGeometryType.esriGeometryCircularArc) ||
                               (featureClass.ShapeType == esriGeometryType.esriGeometryEllipticArc))) ||
                             (featureClass.ShapeType == esriGeometryType.esriGeometryPath)) ||
                            (featureClass.ShapeType == esriGeometryType.esriGeometryPolyline))
                        {
                            if (object_0 is IMap)
                            {
                                (object_0 as IMap).AddLayer(layer5);
                            }
                            else if (object_0 is IGroupLayer)
                            {
                                (object_0 as IGroupLayer).Add(layer5);
                            }
                            array.Remove(index);
                            count--;
                        }
                    }
                }
                for (index = count - 1; index >= 0; index--)
                {
                    layer5 = array.get_Element(index) as ILayer;
                    if (layer5 is IFeatureLayer)
                    {
                        layer        = layer5 as IFeatureLayer;
                        featureClass = layer.FeatureClass;
                        if ((featureClass.ShapeType == esriGeometryType.esriGeometryMultipoint) ||
                            (featureClass.ShapeType == esriGeometryType.esriGeometryPoint))
                        {
                            if (object_0 is IMap)
                            {
                                (object_0 as IMap).AddLayer(layer5);
                            }
                            else if (object_0 is IGroupLayer)
                            {
                                (object_0 as IGroupLayer).Add(layer5);
                            }
                            array.Remove(index);
                            count--;
                        }
                    }
                }
                for (index = count - 1; index >= 0; index--)
                {
                    layer5 = array.get_Element(index) as ILayer;
                    if (object_0 is IMap)
                    {
                        (object_0 as IMap).AddLayer(layer5);
                    }
                    else if (object_0 is IGroupLayer)
                    {
                        (object_0 as IGroupLayer).Add(layer5);
                    }
                    array.Remove(index);
                }
                System.Windows.Forms.Cursor.Current = Cursors.Default;
            }
        }
        /// <summary>
        /// Create Bitmap From ESRI Dataset
        /// </summary>
        /// <param name="dataset">Dataset to generate an image from</param>
        /// <param name="imageFormat">Output image format</param>
        /// <param name="size">Size of output image</param>
        /// <param name="resolution">Resolution of output image (dpi)</param>
        /// <param name="background">Background color</param>
        /// <param name="filename">Ouput filename</param>
        public static void CreateBitmap(IDataset dataset, esriImageFormat imageFormat, Size size, ushort resolution, Color background, string filename)
        {
            ILayer layer = null;

            switch (dataset.Type)
            {
            case esriDatasetType.esriDTFeatureClass:
                IFeatureClass featureClass = (IFeatureClass)dataset;
                switch (featureClass.FeatureType)
                {
                case esriFeatureType.esriFTDimension:
                    layer = new DimensionLayerClass();
                    break;

                case esriFeatureType.esriFTAnnotation:
                    layer = new FeatureLayerClass();
                    IGeoFeatureLayer geoFeaureLayer = (IGeoFeatureLayer)layer;
                    geoFeaureLayer.DisplayAnnotation = true;
                    break;

                case esriFeatureType.esriFTComplexEdge:
                case esriFeatureType.esriFTComplexJunction:
                case esriFeatureType.esriFTSimple:
                case esriFeatureType.esriFTSimpleEdge:
                case esriFeatureType.esriFTSimpleJunction:
                    layer = new FeatureLayerClass();
                    break;
                }
                if (layer == null)
                {
                    return;
                }

                IFeatureLayer featureLayer = (IFeatureLayer)layer;
                featureLayer.FeatureClass = featureClass;

                break;

            case esriDatasetType.esriDTRasterDataset:
                layer = new RasterLayerClass();
                IRasterLayer rasterLayer = (IRasterLayer)layer;
                rasterLayer.CreateFromDataset((IRasterDataset)dataset);
                break;

            default:
                string message = string.Format("[{0}] is not supported", dataset.Type.ToString());
                throw new Exception(message);
            }
            if (layer == null)
            {
                return;
            }

            // Create In-memory Map
            IMap map = new MapClass();

            map.AddLayer(layer);
            IActiveView activeView = (IActiveView)map;
            IExport     export     = null;
            tagRECT     rect       = new tagRECT();

            // Set Format Specific Properties
            switch (imageFormat)
            {
            case esriImageFormat.esriImageJPG:
                export = new ExportJPEGClass();
                IExportJPEG exportJpeg = (IExportJPEG)export;
                exportJpeg.ProgressiveMode = false;
                exportJpeg.Quality         = 100;

                break;

            default:
                throw new Exception("[" + imageFormat.ToString() + "] is not supported");
            }
            if (export == null)
            {
                throw new Exception("Failed to Created Exporter");
            }

            // Set Background
            if ((export is IExportBMP) ||
                (export is IExportGIF) ||
                (export is IExportJPEG) ||
                (export is IExportPNG) ||
                (export is IExportTIFF))
            {
                IExportImage exportImage = (IExportImage)export;
                exportImage.ImageType       = esriExportImageType.esriExportImageTypeTrueColor;
                exportImage.BackgroundColor = GeodatabaseUtility.ToESRIColor(background);
            }

            // Set Export Frame
            rect        = activeView.ExportFrame;
            rect.left   = 0;
            rect.top    = 0;
            rect.right  = size.Width;
            rect.bottom = size.Height;

            // Set Output Extent
            IEnvelope envelope = new EnvelopeClass();

            envelope.PutCoords(rect.left, rect.top, rect.right, rect.bottom);
            export.PixelBounds    = envelope;
            export.Resolution     = resolution;
            export.ExportFileName = filename;

            // Export map to image
            int intHdc = export.StartExporting();

            activeView.Output(intHdc, resolution, ref rect, null, null);
            export.FinishExporting();
            export.Cleanup();

            // Clear Layers
            map.ClearLayers();

            // Release COM Objects
            GeodatabaseUtility.ReleaseComObject(layer);
            GeodatabaseUtility.ReleaseComObject(envelope);
            GeodatabaseUtility.ReleaseComObject(map);
            GeodatabaseUtility.ReleaseComObject(activeView);
            GeodatabaseUtility.ReleaseComObject(export);
            GC.Collect();
            GC.WaitForPendingFinalizers();
        }
Beispiel #8
0
        //直接更改图层坐标系统,并不重投影数据值
        private void btnChangeCoordinate_Click(object sender, EventArgs e)
        {
            ISpatialReference   pSpatialReference = null;
            FrmCoordinateSystem frm = new FrmCoordinateSystem(m_pLayer);

            if (frm.ShowDialog() == DialogResult.OK)
            {
                pSpatialReference = frm.pSpaReference;

                if (m_pLayer is IFeatureLayer)
                {
                    IFeatureLayer pFLayer = m_pLayer as IFeatureLayer;
                    IFeatureClass pFClass = pFLayer.FeatureClass;
                    if (pFClass == null)
                    {
                        return;
                    }
                    IFeatureDataset pFDataset = pFClass.FeatureDataset;
                    if (pFDataset == null)
                    {
                        IGeoDatasetSchemaEdit geoSchemaEdit = pFClass as IGeoDatasetSchemaEdit;
                        if (geoSchemaEdit == null)
                        {
                            return;
                        }

                        if (geoSchemaEdit.CanAlterSpatialReference == true)
                        {
                            geoSchemaEdit.AlterSpatialReference(pSpatialReference);
                        }
                    }
                    else
                    {
                        IGeoDatasetSchemaEdit geoSchemaEdit = pFDataset as IGeoDatasetSchemaEdit;
                        if (geoSchemaEdit == null)
                        {
                            return;
                        }

                        if (geoSchemaEdit.CanAlterSpatialReference == true)
                        {
                            geoSchemaEdit.AlterSpatialReference(pSpatialReference);
                        }
                    }
                }
                else if (m_pLayer is IRasterLayer)
                {
                    IRasterLayer          pRLayer       = m_pLayer as IRasterLayer;
                    IRaster               pRaster       = pRLayer.Raster;
                    IRaster2              pRaster2      = pRaster as IRaster2;
                    IRasterDataset        pRDataset     = pRaster2.RasterDataset;
                    IGeoDatasetSchemaEdit geoSchemaEdit = pRDataset as IGeoDatasetSchemaEdit;
                    if (geoSchemaEdit == null)
                    {
                        return;
                    }

                    if (geoSchemaEdit.CanAlterSpatialReference == true)
                    {
                        geoSchemaEdit.AlterSpatialReference(pSpatialReference);
                        pRLayer.CreateFromDataset(pRDataset);
                    }
                }


                string strCoord = string.Empty;
                if (m_pLayer is IGeoDataset)
                {
                    IGeoDataset geoDataset = m_pLayer as IGeoDataset;
                    if (geoDataset == null)
                    {
                        this.txtCoordinateSystem.Text = string.Empty;
                    }
                    else
                    {
                        ISpatialReference reference = geoDataset.SpatialReference;

                        strCoord = ClsGDBDataCommon.GetReferenceString(reference);
                        txtCoordinateSystem.Text = strCoord;
                        txtCoordinateSystem.Update();
                    }
                }
            }
        }