internal static HandleRef getCPtrAndSetReference(resultCacheObj obj, object parent) {
   if (obj != null)
   {
     obj.swigParentRef = parent;
     return obj.swigCPtr;
   }
   else
   {
     return new HandleRef(null, IntPtr.Zero);
   }
 }
示例#2
0
 public static void QueryByAttribute(string qstring, mapObj map, bool zoomToResults)
 {
     Console.WriteLine("\nPerforming QueryByAttribute:");
     try
     {
         layerObj layer;
         rectObj  query_bounds = null;
         for (int i = 0; i < map.numlayers; i++)
         {
             layer = map.getLayer(i);
             if (layer.connection != null && IsLayerQueryable(layer))
             {
                 Console.WriteLine("Layer [" + i + "] name: " + layer.name);
                 BuildQuery(layer, qstring);
                 // zoom to the query results
                 using (resultCacheObj results = layer.getResults())
                 {
                     if (results != null && results.numresults > 0)
                     {
                         // calculating the extent of the results
                         if (query_bounds == null)
                         {
                             query_bounds = new rectObj(results.bounds.minx, results.bounds.miny,
                                                        results.bounds.maxx, results.bounds.maxy, 0);
                         }
                         else
                         {
                             if (results.bounds.minx < query_bounds.minx)
                             {
                                 query_bounds.minx = results.bounds.minx;
                             }
                             if (results.bounds.miny < query_bounds.miny)
                             {
                                 query_bounds.miny = results.bounds.miny;
                             }
                             if (results.bounds.maxx > query_bounds.maxx)
                             {
                                 query_bounds.maxx = results.bounds.maxx;
                             }
                             if (results.bounds.maxy > query_bounds.maxy)
                             {
                                 query_bounds.maxy = results.bounds.maxy;
                             }
                         }
                     }
                 }
             }
         }
         // setting the map extent to the result bounds
         if (query_bounds != null)
         {
             if (zoomToResults)
             {
                 map.setExtent(query_bounds.minx, query_bounds.miny, query_bounds.maxx, query_bounds.maxy);
                 map.scaleExtent(1.2, 0, 0);                     // increasing the visible area
                 Console.WriteLine("Current map scale: 1:" + (int)map.scaledenom);
             }
         }
         else
         {
             Console.WriteLine("The query returned 0 results ...");
         }
     }
     catch (Exception e)
     {
         Console.WriteLine("QueryByAttribute: " + e.Message);
     }
 }
示例#3
0
        /// <summary>
        /// Refresh the controls according to the underlying object.
        /// </summary>
        public void RefreshView()
        {
            listView.Items.Clear();

            if (map != null)
            {
                // setting up the icon background colors createLegendIcon
                // will take over the legend imagecolor setting from the map object
                int red   = map.legend.imagecolor.red;
                int green = map.legend.imagecolor.green;
                int blue  = map.legend.imagecolor.blue;
                map.legend.imagecolor.red   = this.BackColor.R;
                map.legend.imagecolor.green = this.BackColor.G;
                map.legend.imagecolor.blue  = this.BackColor.B;
                listView.BackColor          = this.BackColor;

                using (outputFormatObj format = map.outputformat)
                {
                    string imageType = null;
                    if ((format.renderer != mapscript.MS_RENDER_WITH_GD &&
                         format.renderer != mapscript.MS_RENDER_WITH_AGG) ||
                        string.Compare(format.mimetype.Trim(), "image/vnd.wap.wbmp", true) == 0 ||
                        string.Compare(format.mimetype.Trim(), "image/tiff", true) == 0 ||
                        string.Compare(format.mimetype.Trim(), "image/jpeg", true) == 0)
                    {
                        // falling back to the png type in case of the esoteric or bad looking types
                        imageType = map.imagetype;
                        map.selectOutputFormat("png24");
                    }

                    imageList.Images.Clear();
                    imageList.ImageSize = new Size(30, 20);

                    try
                    {
                        for (int i = 0; i < map.numlayers; i++)
                        {
                            layerObj layer = map.getLayer(i);
                            if (layer.status != mapscript.MS_OFF)
                            {
                                resultObj res;
                                shapeObj  feature;
                                using (resultCacheObj results = layer.getResults())
                                {
                                    if (results != null && results.numresults > 0)
                                    {
                                        // creating the icon for this layer
                                        using (classObj def_class = new classObj(null)) // for drawing legend images
                                        {
                                            using (imageObj image = def_class.createLegendIcon(map, layer, 30, 20))
                                            {
                                                // drawing the class icons
                                                layer.getClass(0).drawLegendIcon(map, layer, 20, 10, image, 5, 5);
                                                byte[] img = image.getBytes();
                                                using (MemoryStream ms = new MemoryStream(img))
                                                {
                                                    imageList.Images.Add(Image.FromStream(ms));
                                                }
                                            }
                                        }

                                        // extracting the features found
                                        for (int j = 0; j < results.numresults; j++)
                                        {
                                            res     = results.getResult(j);
                                            feature = layer.getShape(res);
                                            if (feature != null)
                                            {
                                                ListViewItem item = new ListViewItem(layer.name, imageList.Images.Count - 1);
                                                item.SubItems.Add(feature.index.ToString());
                                                item.SubItems.Add(MapUtils.GetShapeTypeName((MS_SHAPE_TYPE)feature.type));
                                                listView.Items.Add(item);

                                                StringBuilder s = new StringBuilder("");
                                                s.AppendLine("Feature Properties:");
                                                for (int k = 0; k < layer.numitems; k++)
                                                {
                                                    s.Append(layer.getItem(k));
                                                    s.Append(" = ");
                                                    s.AppendLine(feature.getValue(k));
                                                }
                                                item.Tag = s.ToString();
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                    finally
                    {
                        // switch back to the original type
                        if (imageType != null)
                        {
                            map.selectOutputFormat(imageType);
                        }
                        // restoring the original legend backgroundcolor
                        map.legend.imagecolor.red   = red;
                        map.legend.imagecolor.green = green;
                        map.legend.imagecolor.blue  = blue;
                    }

                    listView.SmallImageList = imageList;
                }
                if (listView.Items.Count > 0)
                {
                    listView.Items[0].Selected = true;
                }
                else
                {
                    richTextBox.Text = "";
                }
            }
        }
 internal static HandleRef getCPtr(resultCacheObj obj) {
   return (obj == null) ? new HandleRef(null, IntPtr.Zero) : obj.swigCPtr;
 }
示例#5
0
    public static void Main(string[] args)
    {
        if (args.Length < 2)
        {
            usage();
        }

        // creating a new map from scratch
        mapObj map = new mapObj(null);
        // adding a layer
        layerObj layer = new layerObj(map);

        layer.type           = MS_LAYER_TYPE.MS_LAYER_POINT;
        layer.status         = mapscript.MS_ON;
        layer.connectiontype = MS_CONNECTION_TYPE.MS_INLINE;
        // define the attribute names from the inline layer
        layer.addProcessing("ITEMS=attribute1,attribute2,attribute3");
        // define the class
        classObj classobj = new classObj(layer);

        classobj.template = "query"; // making the layer queryable
        // setting up the text based on multiple attributes
        classobj.setText("('Shape:' + '[attribute1]' + ' Color:' + '[attribute2]' + ' Size:' + '[attribute3]')");
        // define the label
        classobj.label.outlinecolor = new colorObj(255, 255, 255, 0);
        classobj.label.force        = mapscript.MS_TRUE;
        classobj.label.size         = (double)MS_BITMAP_FONT_SIZES.MS_MEDIUM;
        classobj.label.position     = (int)MS_POSITIONS_ENUM.MS_LC;
        classobj.label.wrap         = ' ';
        // set up attribute binding
        classobj.label.setBinding((int)MS_LABEL_BINDING_ENUM.MS_LABEL_BINDING_COLOR, "attribute2");
        // define the style
        styleObj style = new styleObj(classobj);

        style.color = new colorObj(0, 255, 255, 0);
        style.setBinding((int)MS_STYLE_BINDING_ENUM.MS_STYLE_BINDING_COLOR, "attribute2");
        style.setBinding((int)MS_STYLE_BINDING_ENUM.MS_STYLE_BINDING_SIZE, "attribute3");

        Random rand = new Random((int)DateTime.Now.ToFileTime());;

        // creating the shapes
        for (int i = 0; i < 10; i++)
        {
            shapeObj shape = new shapeObj((int)MS_SHAPE_TYPE.MS_SHAPE_POINT);

            // setting the shape attributes
            shape.initValues(4);
            shape.setValue(0, Convert.ToString(i));
            shape.setValue(1, new colorObj(rand.Next(255), rand.Next(255), rand.Next(255), 0).toHex());
            shape.setValue(2, Convert.ToString(rand.Next(25) + 5));

            lineObj line = new lineObj();
            line.add(new pointObj(rand.Next(400) + 25, rand.Next(400) + 25, 0, 0));
            shape.add(line);
            layer.addFeature(shape);
        }

        map.width  = 500;
        map.height = 500;
        map.setExtent(0, 0, 450, 450);
        map.selectOutputFormat(args[0]);
        imageObj image = map.draw();

        image.save(args[1], map);

        //perform a query
        layer.queryByRect(map, new rectObj(0, 0, 450, 450, 0));

        resultObj res;
        shapeObj  feature;

        using (resultCacheObj results = layer.getResults())
        {
            if (results != null && results.numresults > 0)
            {
                // extracting the features found
                layer.open();
                for (int j = 0; j < results.numresults; j++)
                {
                    res     = results.getResult(j);
                    feature = layer.getShape(res);
                    if (feature != null)
                    {
                        Console.WriteLine("  Feature: shapeindex=" + res.shapeindex + " tileindex=" + res.tileindex);
                        for (int k = 0; k < layer.numitems; k++)
                        {
                            Console.Write("     " + layer.getItem(k));
                            Console.Write(" = ");
                            Console.Write(feature.getValue(k));
                            Console.WriteLine();
                        }
                    }
                }
                layer.close();
            }
        }
    }