/// <summary> /// This method gets the map object out of the mapfactory with given mapalias and /// Adds a point feature into a temp layer, exports it to memory stream and streams it back to client. /// </summary> /// <remarks>None</remarks> public override void Process() { // Extract points from the string System.Drawing.Point [] points = this.ExtractPoints(this.DataString); MapControlModel model = MapControlModel.GetModelFromSession(); model.SetMapSize(MapAlias, MapWidth, MapHeight); MapInfo.Mapping.Map map = model.GetMapObj(MapAlias); if (map == null) { return; } // There will be only one point, convert it to spatial MapInfo.Geometry.DPoint point; map.DisplayTransform.FromDisplay(points[0], out point); IMapLayer lyr = map.Layers[SampleConstants.TempLayerAlias]; if (lyr == null) { TableInfoMemTable ti = new TableInfoMemTable(SampleConstants.TempTableAlias); // Make the table mappable ti.Columns.Add(ColumnFactory.CreateFeatureGeometryColumn(map.GetDisplayCoordSys())); ti.Columns.Add(ColumnFactory.CreateStyleColumn()); Table table = MapInfo.Engine.Session.Current.Catalog.CreateTable(ti); map.Layers.Insert(0, new FeatureLayer(table, "templayer", SampleConstants.TempLayerAlias)); } lyr = map.Layers[SampleConstants.TempLayerAlias]; if (lyr == null) { return; } FeatureLayer fLyr = lyr as FeatureLayer; MapInfo.Geometry.Point geoPoint = new MapInfo.Geometry.Point(map.GetDisplayCoordSys(), point); // Create a Point style which is a red pin point. SimpleVectorPointStyle vs = new SimpleVectorPointStyle(); vs.Code = 67; vs.Color = Color.Red; vs.PointSize = Convert.ToInt16(24); vs.Attributes = StyleAttributes.PointAttributes.BaseAll; vs.SetApplyAll(); // Create a Feature which contains a Point geometry and insert it into temp table. Feature pntFeature = new Feature(geoPoint, vs); MapInfo.Data.Key key = fLyr.Table.InsertFeature(pntFeature); // Send contents back to client. MemoryStream ms = model.GetMap(MapAlias, MapWidth, MapHeight, ExportFormat); StreamImageToClient(ms); }
private bool InitWorkingLayer() { MapInfo.Mapping.Map map = null; // Get the map if (MapInfo.Engine.Session.Current.MapFactory.Count == 0 || (map = MapInfo.Engine.Session.Current.MapFactory[MapControl1.MapAlias]) == null) { return(false); } // Make sure the Find layer's MemTable exists MapInfo.Data.Table table = MapInfo.Engine.Session.Current.Catalog.GetTable(_workingLayerName); if (table == null) { TableInfoMemTable ti = new TableInfoMemTable(_workingLayerName); ti.Temporary = true; // Add the Geometry column Column col = new MapInfo.Data.GeometryColumn(map.GetDisplayCoordSys()); col.Alias = "obj"; col.DataType = MIDbType.FeatureGeometry; ti.Columns.Add(col); // Add the Style column col = new MapInfo.Data.Column(); col.Alias = "MI_Style"; col.DataType = MIDbType.Style; ti.Columns.Add(col); table = MapInfo.Engine.Session.Current.Catalog.CreateTable(ti); } if (table == null) { return(false); } // Make sure the Find layer exists MapInfo.Mapping.FeatureLayer layer = (MapInfo.Mapping.FeatureLayer)map.Layers[_workingLayerName]; if (layer == null) { layer = new MapInfo.Mapping.FeatureLayer(table, _workingLayerName, _workingLayerName); map.Layers.Insert(0, layer); } if (layer == null) { return(false); } // Delete the find object. There should only be one object in this table. (layer.Table as ITableFeatureCollection).Clear(); return(true); }
protected void Page_Load(object sender, System.EventArgs e) { MapInfo.Mapping.Map myMap = GetMapObj(); if (Session.IsNewSession) { AppStateManager stateManager = new AppStateManager(); stateManager.ParamsDictionary[AppStateManager.ActiveMapAliasKey] = this.MapControl1.MapAlias; MapInfo.WebControls.StateManager.PutStateManagerInSession(stateManager); // Add customized web tools // Below line will put controlModel into HttpSessionState. MapInfo.WebControls.MapControlModel controlModel = MapControlModel.SetDefaultModelInSession(); controlModel.Commands.Add(new AddPinPointCommand()); controlModel.Commands.Add(new ClearPinPointCommand()); controlModel.Commands.Add(new ModifiedRadiusSelectionCommand()); /****** Set the initial state of the map *************/ // Clear up the temp layer left by other customer requests. if (myMap != null) { if (myMap.Layers[SampleConstants.TempLayerAlias] != null) { myMap.Layers.Remove(SampleConstants.TempLayerAlias); } } // Need to clean up "dirty" temp table left by other customer requests. MapInfo.Engine.Session.Current.Catalog.CloseTable(SampleConstants.TempTableAlias); // Need to clear the DefautlSelection. MapInfo.Engine.Session.Current.Selections.DefaultSelection.Clear(); // Creat a temp table and AddPintPointCommand will add features into it. MapInfo.Data.TableInfoMemTable ti = new MapInfo.Data.TableInfoMemTable(SampleConstants.TempTableAlias); // Make the table mappable ti.Columns.Add(MapInfo.Data.ColumnFactory.CreateFeatureGeometryColumn(myMap.GetDisplayCoordSys())); ti.Columns.Add(MapInfo.Data.ColumnFactory.CreateStyleColumn()); MapInfo.Data.Table table = MapInfo.Engine.Session.Current.Catalog.CreateTable(ti); // Create a new FeatureLayer based on the temp table, so we can see the temp table on the map. myMap.Layers.Insert(0, new FeatureLayer(table, "templayer", SampleConstants.TempLayerAlias)); // This step is needed because you may get a dirty map from mapinfo Session.Current which is retrived from session pool. myMap.Zoom = new MapInfo.Geometry.Distance(25000, MapInfo.Geometry.DistanceUnit.Mile); myMap.Center = new MapInfo.Geometry.DPoint(27775.805792979896, -147481.33999999985); } MapInfo.WebControls.StateManager.GetStateManagerFromSession().RestoreState(); }
/// <summary> /// /// </summary> /// <param name="map"></param> /// <returns></returns> public static bool ZoomAll(MapInfo.Mapping.Map map) { map.SetView(map.Layers.Bounds, map.GetDisplayCoordSys()); return(true); }