Esempio n. 1
0
        public void MakeTransparent(GraphicsEngine.ArgbColor transColor)
        {
            if (Bitmap == null)
            {
                return;
            }

            try
            {
                var b = GraphicsEngine.Current.Engine.CreateBitmap(Bitmap.Width, Bitmap.Height, GraphicsEngine.PixelFormat.Rgba32);
                using (var g = b.CreateCanvas())
                {
                    g.DrawBitmap(Bitmap, new GraphicsEngine.CanvasPoint(0, 0));
                }
                b.MakeTransparent(transColor);
                Bitmap.Dispose();
                Bitmap = b;
            }
            catch { }
        }
Esempio n. 2
0
        public void DrawOverlay(IGraphicsContainer container, bool clearOld)
        {
            if (RenderOverlayImage == null || _canvas != null)
            {
                return;
            }

            if (container == null)
            {
                ClearOverlay();
            }

            GraphicsEngine.Abstraction.IBitmap bm = null;
            try
            {
                bm = GraphicsEngine.Current.Engine.CreateBitmap(iWidth, iHeight);
                bm.MakeTransparent();

                _canvas = bm.CreateCanvas();
                foreach (IGraphicElement element in container.Elements)
                {
                    element.Draw(this);
                }

                RenderOverlayImage(bm, clearOld);
            }
            catch
            {
            }
            finally
            {
                if (_canvas != null)
                {
                    _canvas.Dispose();
                }

                _canvas = null;
                if (bm != null)
                {
                    bm.Dispose();
                }
            }
        }
Esempio n. 3
0
        // Thread
        async public Task Render()
        {
            GraphicsEngine.Abstraction.IBitmap _filteredBitmap = null;

            try
            {
                if (_layer == null || _map == null || _cancelTracker == null)
                {
                    return;
                }

                if (_layer.RasterClass.Polygon == null)
                {
                    return;
                }

                IEnvelope env = _layer.RasterClass.Polygon.Envelope;
                double    minx = env.minx, miny = env.miny, maxx = env.maxx, maxy = env.maxy;

                _map.World2Image(ref minx, ref miny);
                _map.World2Image(ref maxx, ref maxy);

                int iWidth = 0, iHeight = 0;
                int min_x = Math.Max(0, (int)Math.Min(minx, maxx) - 1);
                int min_y = Math.Max(0, (int)Math.Min(miny, maxy) - 1);
                int max_x = Math.Min(iWidth = _map.iWidth, (int)Math.Max(minx, maxx) + 1);
                int max_y = Math.Min(iHeight = _map.iHeight, (int)Math.Max(miny, maxy) + 1);


                using (var paintContext = await _layer.RasterClass.BeginPaint(_map.Display, _cancelTracker))
                {
                    if (_filter != FilterImplementations.Default)
                    {
                        _filteredBitmap = BaseFilter.ApplyFilter(paintContext.Bitmap, _filter);
                    }

                    if (paintContext.Bitmap == null && _filteredBitmap == null)
                    {
                        return;
                    }

                    //System.Windows.Forms.MessageBox.Show("begin");

                    double W    = (_map.Envelope.maxx - _map.Envelope.minx);
                    double H    = (_map.Envelope.maxy - _map.Envelope.miny);
                    double MinX = _map.Envelope.minx;
                    double MinY = _map.Envelope.miny;

                    //_lastRasterLayer = _layer;

                    var canvas = _map.Display.Canvas;
                    if (canvas == null)
                    {
                        return;
                    }

                    canvas.InterpolationMode = (GraphicsEngine.InterpolationMode)_interpolMethod;

                    // Transformation berechnen
                    GraphicsEngine.CanvasRectangleF rect;
                    switch (canvas.InterpolationMode)
                    {
                    case GraphicsEngine.InterpolationMode.Bilinear:
                    case GraphicsEngine.InterpolationMode.Bicubic:
                        rect = new GraphicsEngine.CanvasRectangleF(0, 0, paintContext.Bitmap.Width - 1f, paintContext.Bitmap.Height - 1f);
                        break;

                    case GraphicsEngine.InterpolationMode.NearestNeighbor:
                        rect = new GraphicsEngine.CanvasRectangleF(-0.5f, -0.5f, paintContext.Bitmap.Width, paintContext.Bitmap.Height);
                        //rect = new GraphicsEngine.CanvasRectangleF(0f, 0f, _layer.RasterClass.Bitmap.Width, _layer.RasterClass.Bitmap.Height);
                        break;

                    default:
                        rect = new GraphicsEngine.CanvasRectangleF(0, 0, paintContext.Bitmap.Width, paintContext.Bitmap.Height);
                        break;
                    }

                    var points = new GraphicsEngine.CanvasPointF[3];

                    if (_layer.RasterClass is IRasterClass2)
                    {
                        IPoint p1 = ((IRasterClass2)_layer.RasterClass).PicPoint1;
                        IPoint p2 = ((IRasterClass2)_layer.RasterClass).PicPoint2;
                        IPoint p3 = ((IRasterClass2)_layer.RasterClass).PicPoint3;
                        if (_map.Display.GeometricTransformer != null)
                        {
                            p1 = (IPoint)_map.Display.GeometricTransformer.Transform2D(p1);
                            p2 = (IPoint)_map.Display.GeometricTransformer.Transform2D(p2);
                            p3 = (IPoint)_map.Display.GeometricTransformer.Transform2D(p3);
                        }

                        double X = p1.X, Y = p1.Y;
                        _map.Display.World2Image(ref X, ref Y);
                        points[0] = new GraphicsEngine.CanvasPointF(ToPixelFloat(X), ToPixelFloat(Y));

                        X = p2.X; Y = p2.Y;
                        _map.Display.World2Image(ref X, ref Y);
                        points[1] = new GraphicsEngine.CanvasPointF(ToPixelFloat(X), ToPixelFloat(Y));

                        X = p3.X; Y = p3.Y;
                        _map.Display.World2Image(ref X, ref Y);
                        points[2] = new GraphicsEngine.CanvasPointF(ToPixelFloat(X), ToPixelFloat(Y));

                        RoundGraphicPixelPoints(points);
                    }
                    else
                    {
                        double X1 = _layer.RasterClass.oX - _layer.RasterClass.dx1 / 2.0 - _layer.RasterClass.dy1 / 2.0;
                        double Y1 = _layer.RasterClass.oY - _layer.RasterClass.dx2 / 2.0 - _layer.RasterClass.dy2 / 2.0;
                        double X  = X1;
                        double Y  = Y1;
                        if (_map.Display.GeometricTransformer != null)
                        {
                            IPoint p = (IPoint)_map.Display.GeometricTransformer.Transform2D(new Point(X, Y));
                            X = p.X; Y = p.Y;
                        }

                        _map.Display.World2Image(ref X, ref Y);
                        points[0] = new GraphicsEngine.CanvasPointF(ToPixelFloat(X), ToPixelFloat(Y));
                        X         = X1 + (paintContext.Bitmap.Width) * _layer.RasterClass.dx1;
                        Y         = Y1 + (paintContext.Bitmap.Width) * _layer.RasterClass.dx2;
                        if (_map.Display.GeometricTransformer != null)
                        {
                            IPoint p = (IPoint)_map.Display.GeometricTransformer.Transform2D(new Point(X, Y));
                            X = p.X; Y = p.Y;
                        }

                        _map.Display.World2Image(ref X, ref Y);
                        points[1] = new GraphicsEngine.CanvasPointF(ToPixelFloat(X), ToPixelFloat(Y));
                        X         = X1 + (paintContext.Bitmap.Height) * _layer.RasterClass.dy1;
                        Y         = Y1 + (paintContext.Bitmap.Height) * _layer.RasterClass.dy2;
                        if (_map.Display.GeometricTransformer != null)
                        {
                            IPoint p = (IPoint)_map.Display.GeometricTransformer.Transform2D(new Point(X, Y));
                            X = p.X; Y = p.Y;
                        }

                        _map.Display.World2Image(ref X, ref Y);
                        points[2] = new GraphicsEngine.CanvasPointF(ToPixelFloat(X), ToPixelFloat(Y));
                    }

                    if (_transColor.ToArgb() != System.Drawing.Color.Transparent.ToArgb())
                    {
                        try
                        {
                            // kann OutOfMemoryException auslösen...
                            paintContext.Bitmap.MakeTransparent(_transColor);
                        }
                        catch (Exception ex)
                        {
                            if (_map is IServiceMap && ((IServiceMap)_map).MapServer != null)
                            {
                                await((IServiceMap)_map).MapServer.LogAsync(
                                    ((IServiceMap)_map).Name,
                                    "RenderRasterLayerThread: " + ((_layer != null) ? _layer.Title : String.Empty),
                                    loggingMethod.error,
                                    ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace);
                            }
                            if (_map != null)
                            {
                                if (_map != null)
                                {
                                    _map.AddRequestException(new Exception("RenderRasterLayerThread: " + ((_layer != null) ? _layer.Title : String.Empty) + "\n" + ex.Message, ex));
                                }
                            }
                        }
                    }

                    //var comQual = gr.CompositingQuality;
                    //gr.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
                    float opaque = 1.0f - _transparency;

                    canvas.DrawBitmap(_filteredBitmap ?? paintContext.Bitmap,
                                      points,
                                      rect,
                                      opacity: opaque);

                    _map.FireRefreshMapView();
                }
            }
            catch (Exception ex)
            {
                if (_map is IServiceMap && ((IServiceMap)_map).MapServer != null)
                {
                    await((IServiceMap)_map).MapServer.LogAsync(
                        ((IServiceMap)_map).Name,
                        "RenderRasterLayerThread:" + ((_layer != null) ? _layer.Title : String.Empty), loggingMethod.error,
                        ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace);
                }
                if (_map != null)
                {
                    if (_map != null)
                    {
                        _map.AddRequestException(new Exception("RenderRasterLayerThread: " + ((_layer != null) ? _layer.Title : String.Empty) + "\n" + ex.Message, ex));
                    }
                }
            }
            finally
            {
                if (_filteredBitmap != null)
                {
                    _filteredBitmap.Dispose();
                }
            }
        }
Esempio n. 4
0
        async public Task <bool> LegendRequest(gView.Framework.Carto.IDisplay display)
        {
            if (_dataset == null)
            {
                return(false);
            }

            List <IWebServiceTheme> themes = Themes;

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

            #region Check for visible Layers
            bool visFound = false;
            foreach (IWebServiceTheme theme in themes)
            {
                if (!theme.Visible)
                {
                    continue;
                }

                if (theme.MinimumScale > 1 && theme.MinimumScale > display.mapScale)
                {
                    continue;
                }

                if (theme.MaximumScale > 1 && theme.MaximumScale < display.mapScale)
                {
                    continue;
                }

                visFound = true;
                break;
            }
            if (!visFound)
            {
                if (_legend != null)
                {
                    _legend.Dispose();
                    _legend = null;
                }
                return(true);
            }
            #endregion

            string server  = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "server");
            string service = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "service");
            string user    = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "user");
            string pwd     = ConfigTextStream.ExtractValue(_dataset.ConnectionString, "pwd");
            IServiceRequestContext context = display.Map as IServiceRequestContext;

            //if ((user == "#" || user == "$") &&
            //    context != null && context.ServiceRequest != null && context.ServiceRequest.Identity != null)
            //{
            //    string roles = String.Empty;
            //    if (user == "#" && context.ServiceRequest.Identity.UserRoles != null)
            //    {
            //        foreach (string role in context.ServiceRequest.Identity.UserRoles)
            //        {
            //            if (String.IsNullOrEmpty(role)) continue;
            //            roles += "|" + role;
            //        }
            //    }
            //    user = context.ServiceRequest.Identity.UserName + roles;
            //    pwd = context.ServiceRequest.Identity.HashedPassword;
            //}

            dotNETConnector connector = new dotNETConnector();
            if (!String.IsNullOrEmpty(user) || !String.IsNullOrEmpty(pwd))
            {
                connector.setAuthentification(user, pwd);
            }

            if (_dataset.State != DatasetState.opened)
            {
                if (!await _dataset.Open(context))
                {
                    return(false);
                }
            }

            try
            {
                StringBuilder sb = new StringBuilder();
                sb.Append("<?xml version='1.0' encoding='utf-8'?>");
                sb.Append("<ARCXML version='1.1'>");
                sb.Append("<REQUEST>");
                sb.Append("<GET_IMAGE>");
                sb.Append("<PROPERTIES>");
                sb.Append("<ENVELOPE minx='" + display.Envelope.minx.ToString() + "' miny='" + display.Envelope.miny.ToString() + "' maxx='" + display.Envelope.maxx.ToString() + "' maxy='" + display.Envelope.maxy.ToString() + "' />");
                sb.Append("<IMAGESIZE width='" + display.iWidth + "' height='" + display.iHeight + "' />");
                sb.Append("<BACKGROUND color='255,255,255' transcolor='255,255,255' />");

                sb.Append(_dataset._properties.PropertyString);

                sb.Append("<LAYERLIST>");
                foreach (IWebServiceTheme theme in themes)
                {
                    sb.Append("<LAYERDEF id='" + theme.LayerID + "' visible='" + (theme.Visible && !theme.Locked).ToString() + "'");
                    XmlNode xmlnode;
                    if (LayerRenderer.TryGetValue(theme.LayerID, out xmlnode))
                    {
                        sb.Append(">\n" + xmlnode.OuterXml + "\n</LAYERDEF>");
                    }
                    else if (theme.FeatureRenderer != null)
                    {
                        string renderer = ObjectFromAXLFactory.ConvertToAXL(theme.FeatureRenderer);
                        sb.Append(">\n" + renderer + "\n</LAYERDEF>");
                    }
                    else
                    {
                        sb.Append("/>");
                    }
                }
                sb.Append("</LAYERLIST>");
                sb.Append("<DRAW map=\"false\" />");
                sb.Append("<LEGEND font=\"Arial\" autoextend=\"true\" columns=\"1\" width=\"165\" height=\"170\" backgroundcolor=\"255,255,255\" layerfontsize=\"11\" valuefontsize=\"10\">");
                sb.Append("<LAYERS />");
                sb.Append("</LEGEND>");
                sb.Append("</PROPERTIES>");
                foreach (XmlNode additional in this.AppendedLayers)
                {
                    sb.Append(additional.OuterXml);
                }
                sb.Append("</GET_IMAGE>");
                sb.Append("</REQUEST>");
                sb.Append("</ARCXML>");

                await ArcIMSClass.LogAsync(display as IServiceRequestContext, "GetLegend Request", server, service, sb);

                string resp = connector.SendRequest(sb, server, service);
                await ArcIMSClass.LogAsync(display as IServiceRequestContext, "GetLegend Response", server, service, resp);

                XmlDocument doc = new XmlDocument();
                doc.LoadXml(resp);

                XmlNode output = doc.SelectSingleNode("//LEGEND");

                if (ModifyResponseOuput != null)
                {
                    ModifyResponseOuput(this, new ModifyOutputEventArgs(output));
                }

                if (_legend != null)
                {
                    _legend.Dispose();
                }

                _legend = WebFunctions.DownloadImage(output);
                return(true);
            }
            catch (Exception ex)
            {
                await ArcIMSClass.ErrorLog(context, "LegendRequest", server, service, ex);

                return(false);
            }
        }
Esempio n. 5
0
        async private Task Render(IFeatureLayer layer)
        {
            IFeatureRenderer clonedFeatureRenderer = null;
            ILabelRenderer   clonedLabelRenderer   = null;

            GraphicsEngine.Abstraction.IBitmap compositionModeCopyBitmap = null;
            GraphicsEngine.Abstraction.ICanvas compositionModeCopyCanvas = null, originalCanvas = null;

            try
            {
                _map.FireOnUserInterface(true);
                if ((
                        layer.FeatureRenderer == null ||
                        layer.FeatureRenderer.HasEffect(layer, _map) == false)
                    &&
                    (
                        layer.LabelRenderer == null ||
                        _useLabelRenderer == false
                    ))
                {
                    return;
                }

                IFeatureClass fClass = layer.FeatureClass;
                if (fClass == null)
                {
                    return;
                }

                //IDataset dataset = (IDataset)_map[layer];
                //if (dataset == null) return;

                //if (!(dataset is IFeatureDataset)) return;

                IGeometry filterGeom = _map.Display.DisplayTransformation.TransformedBounds(_map.Display); //_map.Display.Envelope;

                if (_map.Display.GeometricTransformer != null)
                {
                    filterGeom = MapHelper.Project(fClass, _map.Display);
                }

                gView.Framework.Data.SpatialFilter filter = new gView.Framework.Data.SpatialFilter();
                filter.DatasetCachingContext = _datasetCachingContext;
                filter.Geometry = filterGeom;
                filter.AddField(fClass.ShapeFieldName);
                //filter.FuzzyQuery = true;
                filter.SpatialRelation = spatialRelation.SpatialRelationMapEnvelopeIntersects;
                filter.MapScale        = _map.Display.mapScale;
                filter.CancelTracker   = _cancelTracker;

                if (layer.FilterQuery != null)
                {
                    filter.WhereClause = layer.FilterQuery.WhereClause;
                    if (layer.FilterQuery is IBufferQueryFilter)
                    {
                        ISpatialFilter sFilter = await BufferQueryFilter.ConvertToSpatialFilter(layer.FilterQuery as IBufferQueryFilter);

                        if (sFilter == null)
                        {
                            return;
                        }
                        filter.SpatialRelation = spatialRelation.SpatialRelationIntersects;
                        filter.Geometry        = sFilter.Geometry;
                    }
                    if (layer.FilterQuery is ISpatialFilter)
                    {
                        //filter.FuzzyQuery = ((ISpatialFilter)layer.FilterQuery).FuzzyQuery;
                        filter.SpatialRelation = ((ISpatialFilter)layer.FilterQuery).SpatialRelation;
                        filter.Geometry        = ((ISpatialFilter)layer.FilterQuery).Geometry;
                    }
                }

                // Erst nach dem Clonen anwenden!!!
                //if (layer.FeatureRenderer != null && layer.FeatureRenderer.HasEffect(layer, _map))
                //{
                //    layer.FeatureRenderer.PrepareQueryFilter(layer, filter);
                //}
                //if (layer.LabelRenderer != null && _useLabelRenderer)
                //{
                //    layer.LabelRenderer.PrepareQueryFilter(_map.Display, layer, filter);
                //}

                IDisplay display  = _map;
                double   refScale = display.refScale;

                #region Layer Clonen

                IFeatureRenderer renderer      = null;
                ILabelRenderer   labelRenderer = null;

                lock (lockThis)
                {
                    // Beim Clonen sprerren...
                    // Da sonst bei der Servicemap bei gleichzeitigen Requests
                    // Exception "Objekt wird bereits an anderer Stelle verwendet" auftreten kann!
                    if (layer.FeatureRenderer != null && layer.FeatureRenderer.HasEffect(layer, _map))
                    {
                        if (layer.RequiresFeatureRendererClone(display))
                        {
                            renderer = clonedFeatureRenderer = (IFeatureRenderer)layer.FeatureRenderer.Clone(
                                new CloneOptions(display,
                                                 layer.UseWithRefScale(display),
                                                 maxRefScaleFactor: layer.MaxRefScaleFactor));
                        }
                        else
                        {
                            renderer = layer.FeatureRenderer;
                        }
                    }
                    if (layer.LabelRenderer != null && _useLabelRenderer)
                    {
                        if (layer.RequiresLabelRendererClone(display))
                        {
                            labelRenderer = clonedLabelRenderer =
                                (ILabelRenderer)layer.LabelRenderer.Clone(new CloneOptions(display,
                                                                                           layer.UseLabelsWithRefScale(display),
                                                                                           maxLabelRefscaleFactor: layer.MaxLabelRefScaleFactor));
                        }
                        else  // Clone with null => simple clone
                        {
                            //display.refScale = 0;
                            labelRenderer = clonedLabelRenderer = (ILabelRenderer)layer.LabelRenderer.Clone(null);
                            //display.refScale = refScale;
                        }
                    }
                }

                #endregion

                #region Prepare filter

                // Prepare erst auf geclonte renderer anwenden!! (Threadsafe)
                if (renderer != null && renderer.HasEffect(layer, _map))
                {
                    renderer.PrepareQueryFilter(layer, filter);
                }
                if (labelRenderer != null && _useLabelRenderer)
                {
                    labelRenderer.PrepareQueryFilter(_map.Display, layer, filter);
                }

                #endregion

                using (IFeatureCursor fCursor = await fClass.GetFeatures(MapHelper.MapQueryFilter(filter)))
                {
                    _map.FireOnUserInterface(false);

                    if (fCursor != null)
                    {
                        IFeature feature;

                        if (renderer != null)
                        {
                            renderer.StartDrawing(_map);

                            bool useCompostionModeCopy = layer is IFeatureLayerComposition &&
                                                         ((IFeatureLayerComposition)layer).CompositionMode == FeatureLayerCompositionMode.Copy;

                            if (useCompostionModeCopy)
                            {
                                originalCanvas            = _map.Display.Canvas;
                                compositionModeCopyBitmap = GraphicsEngine.Current.Engine.CreateBitmap(_map.Display.Bitmap.Width, _map.Display.Bitmap.Height, GraphicsEngine.PixelFormat.Rgba32);
                                compositionModeCopyCanvas = compositionModeCopyBitmap.CreateCanvas();

                                compositionModeCopyBitmap.MakeTransparent();
                                compositionModeCopyBitmap.SetResolution(_map.Display.Bitmap.DpiX,
                                                                        _map.Display.Bitmap.DpiY);

                                ((Display)_map.Display).Canvas = compositionModeCopyCanvas;
                            }

                            while ((feature = await fCursor.NextFeature()) != null)
                            {
                                if (_cancelTracker != null)
                                {
                                    if (!_cancelTracker.Continue)
                                    {
                                        break;
                                    }
                                }

                                renderer.Draw(_map, feature);

                                if (labelRenderer != null)
                                {
                                    labelRenderer.Draw(_map, feature);
                                }

                                _counter.Counter++;

                                if (_isServiceMap == false)
                                {
                                    if (_counter.Counter % 100 == 0)
                                    {
                                        _map.FireRefreshMapView();
                                    }
                                }
                            }
                        }
                        else if (labelRenderer != null && _cancelTracker.Continue)
                        {
                            while ((feature = await fCursor.NextFeature()) != null)
                            {
                                if (_cancelTracker != null)
                                {
                                    if (!_cancelTracker.Continue)
                                    {
                                        break;
                                    }
                                }

                                labelRenderer.Draw(_map, feature);
                                _counter.Counter++;
                            }
                        }

                        if (labelRenderer != null)
                        {
                            labelRenderer.Release();
                        }

                        if (renderer != null)
                        {
                            renderer.FinishDrawing(_map, _cancelTracker);
                        }

                        if (compositionModeCopyCanvas != null && compositionModeCopyBitmap != null)
                        {
                            originalCanvas.DrawBitmap(compositionModeCopyBitmap,
                                                      new GraphicsEngine.CanvasRectangle(0, 0, compositionModeCopyBitmap.Width, compositionModeCopyBitmap.Height),
                                                      new GraphicsEngine.CanvasRectangle(0, 0, compositionModeCopyBitmap.Width, compositionModeCopyBitmap.Height),
                                                      opacity: (float)Math.Min(1, (100f - ((IFeatureLayerComposition)layer).CompositionModeCopyTransparency) / 100));
                        }
                    }
                    else
                    {
                        if (fClass is IDebugging && ((IDebugging)fClass).LastException != null)
                        {
                            throw ((IDebugging)fClass).LastException;
                        }

                        throw new Exception("Can't query feature class. Unknown error");
                    }
                }
            }
            catch (Exception ex)
            {
                if (_map is IServiceMap && ((IServiceMap)_map).MapServer != null)
                {
                    await((IServiceMap)_map).MapServer.LogAsync(
                        ((IServiceMap)_map).Name,
                        "RenderFeatureLayer: " + ((layer != null) ? layer.Title : String.Empty),
                        loggingMethod.error,
                        ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace);
                }
                if (_map != null)
                {
                    _map.AddRequestException(new Exception("RenderFeatureLayerThread: " + ((layer != null) ? layer.Title : String.Empty) + "\n" + ex.Message, ex));
                }
            }
            finally
            {
                if (clonedFeatureRenderer != null)
                {
                    clonedFeatureRenderer.Release();
                }

                if (clonedLabelRenderer != null)
                {
                    clonedLabelRenderer.Release();
                }

                if (originalCanvas != null)
                {
                    ((Display)_map.Display).Canvas = originalCanvas;
                }

                if (compositionModeCopyCanvas != null)
                {
                    compositionModeCopyCanvas.Dispose();
                    compositionModeCopyCanvas = null;
                }

                if (compositionModeCopyBitmap != null)
                {
                    compositionModeCopyBitmap.Dispose();
                    compositionModeCopyBitmap = null;
                }

                _map.FireOnUserInterface(false);
            }
        }