如何给等值线做标注Arcgis for sl

最新推荐文章于 2025-05-15 10:50:29 发布

原创最新推荐文章于 2025-05-15 10:50:29 发布 · 3.3k 阅读

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这篇博客展示了如何使用C#代码为等值线进行标注操作，通过遍历ShapeFileRecord并设置SimpleLineSymbol，然后利用TextSymbol添加文字信息到等值线的起点和终点，字体、颜色和大小都进行了设定。

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这里只给出标注部分的代码：

foreach (ShapeFileRecord record in shapeFileReader.Records)
                {
                    Graphic graphic = record.ToGraphic();
                    if (graphic != null)
                    {
                        int index = 0;
                        for (int i = 0; i < Config.level.Split(',').Length; i++)
                        {
                            if (graphic.Attributes["mark"].ToString() == Config.level.Split(',')[i])
                            {
                                index = i;
                                break;
                            }
                        }

                        graphic.Symbol = new SimpleLineSymbol()
                        {
                            Color = new SolidColorBrush(colors[0]),
                            Style = SimpleLineSymbol.LineStyle.Solid,
                            Width = 2
                        };

                        #region 等值线添加标注
                        ESRI.ArcGIS.Client.Geometry.Polyline pLine = graphic.Geometry as ESRI.ArcGIS.Client.Geometry.Polyline;
                        ESRI.ArcGIS.Client.Geometry.PointCollection pCollection = pLine.Paths[0];

                        //添加文字信息
                        TextSymbol textSymbol = new TextSymbol()
                        {
                            FontFamily = new System.Windows.Media.FontFamily("Microsoft YaHei"),
                            Foreground = new System.Windows.Media.SolidColorBrush(Color.FromArgb(255, 0, 0, 255)),
                            FontSize = 12,
                            Text = Config.level.Split(',')[index]
                        };

                        ESRI.ArcGIS.Client.Geometry.MapPoint mpStart = pCollection[0];
                        Graphic graphicTextStart = new Graphic()
                        {
                            Geometry = mpStart,
                            Symbol = textSymbol
                        };
                        DZXMBiaoZhuLayer.Graphics.Add(graphicTextStart);

                        ESRI.ArcGIS.Client.Geometry.MapPoint mpEnd = pCollection[pCollection.Count - 1];
                        Graphic graphicTextEnd = new Graphic()
                        {
                            Geometry = mpEnd,
                            Symbol = textSymbol
                        };
                        DZXMBiaoZhuLayer.Graphics.Add(graphicTextEnd);
                        #endregion
                    }
                    DZXMLayer.Graphics.Add(graphic);
                }