示例#1
0
        /// <summary>
        /// 设置地图的显示范围
        /// </summary>
        /// <param name="bounds">需要显示的范围</param>
        private void viewBounds(soRect bounds)
        {
            double width = bounds.Width();
            double heigth = bounds.Width();
            bounds.Left -= width / 2;
            bounds.Right += width / 2;
            bounds.Bottom -= heigth / 2;
            bounds.Top += heigth / 2;

            this.axSuperMap1.ViewBounds = bounds;
            this.axSuperMap1.Refresh();
        }
示例#2
0
        /// <summary>
        /// 设置地图的显示范围
        /// </summary>
        /// <param name="objRd">需要显示的记录集</param>
        private void viewRecordset(soRecordset objRd)
        {
            double left = Double.MaxValue;
            double right = Double.MinValue;
            double bottom = Double.MaxValue;
            double top = Double.MinValue;
            objRd.MoveFirst();
            while (!objRd.IsEOF())
            {
                soRect bounds = objRd.GetGeometry().Bounds;
                if (left>bounds.Left)
                {
                    left = bounds.Left;
                }
                if (right < bounds.Right)
                {
                    right = bounds.Right;
                }
                if (bottom > bounds.Bottom)
                {
                    bottom = bounds.Bottom;
                }
                if (top < bounds.Top)
                {
                    top = bounds.Top;
                }
                objRd.MoveNext();
            }

            soRect rect = new soRect();
            rect.Left = left;
            rect.Right = right;
            rect.Bottom = bottom;
            rect.Top = top;

            viewBounds(rect);
        }
示例#3
0
        /// <summary>
        /// 查询poi
        /// </summary>
        private void searchpoi()
        {
            String key = this.textBoxItemSearchKey.TextBox.Text.Trim();
            if (key.Length == 0 || key == tipPOIKey)
            {
                MessageBox.Show("请输入搜索关键字!", msgCaption);
                return;
            }

            this.listBoxPoiResult.Items.Clear();
            this.axSuperMap1.TrackingLayer.ClearEvents();

            if (!poiSearch.IsOpen)
            {
                MessageBox.Show("找不到POI索引!", msgCaption);
                return;
            }

            // poi查询
            PoiResult poiResult = poiSearch.search(key);

            if (poiResult == null || poiResult.Count == 0)
            {
                MessageBox.Show("找不到数据!", msgCaption);
                return;
            }

            soStyle style = new soStyle();
            style.PenColor = Util.ColorToUInt32(Color.Blue);
            style.SymbolSize = 30;

            soRect rect = new soRect();

            //获取查询结果
            for (int i = 0; i < Math.Min(poiResult.Count,200); i++)
            {
                PoiInfo poiInfo = poiResult.getPoiInfoAt(i);

                //坐标转换(wgs84 -> 地图坐标)
                coordSysTranslator.convert(ref poiInfo);

                // 加了结果列表
                this.listBoxPoiResult.Items.Add(poiInfo);

                // 加入跟踪层高亮显示
                soGeoPoint geoPoint = new soGeoPoint();
                geoPoint.x = poiInfo.x;
                geoPoint.y = poiInfo.y;
                this.axSuperMap1.TrackingLayer.AddEvent((soGeometry)geoPoint, style, poiInfo.name);

                //计算范围
                if (i==0)
                {
                    //第一个
                    rect.Left = poiInfo.x;
                    rect.Right = poiInfo.x;
                    rect.Bottom = poiInfo.y;
                    rect.Top = poiInfo.y;
                }
                else
                {
                    //向外扩张
                    if (rect.Left > poiInfo.x)
                    {
                        rect.Left = poiInfo.x;
                    }
                    if (rect.Right < poiInfo.x)
                    {
                        rect.Right = poiInfo.x;
                    }
                    if (rect.Bottom > poiInfo.y)
                    {
                        rect.Bottom = poiInfo.y;
                    }
                    if (rect.Top < poiInfo.y)
                    {
                        rect.Top = poiInfo.y;
                    }
                }
            }

            //viewAllPoi(this.listBoxPoiResult.Items);
            showRigthPanel(true, 1);

            if (poiResult.Count == 1)
            {
                axSuperMap1.CenterX = rect.CenterPoint().x;
                axSuperMap1.CenterY = rect.CenterPoint().y;
            }
            else
            {
                viewBounds(rect);
            }

            axSuperMap1.Refresh();
        }