初探GIS Mapxtreme 添加点 层 线

1、添加点

 　　　　　　 ///</summary>
　　　　　　　///添加点
　　　　　　　/// </summary>
　　　　　　　/// <param name="layerName">图层名称</param>
　　　　　　　/// <param name="dPoint">点的坐标</param>
　　　　　　　/// <param name="shortCode">点代码 32-67</param>
            /// <param name="color">点的颜色</param>
            /// <param name="obj">表数据</param>
            public void AddPoint(string layerName, DPoint dPoint, short shortCode, Color color, params object[] obj)
            {
                MapInfo.Mapping.Map map = MapInfo.Engine.Session.Current.MapFactory[0];
                MapInfo.Mapping.FeatureLayer featureLayer = (MapInfo.Mapping.FeatureLayer)map.Layers[layerName];
                MapInfo.Data.Table table = featureLayer.Table;
                FeatureGeometry point = new MapInfo.Geometry.Point(featureLayer.CoordSys, dPoint);
                MapInfo.Styles.SimpleVectorPointStyle simpleVectorPointStyle = new MapInfo.Styles.SimpleVectorPointStyle(shortCode, color, 12);
                MapInfo.Styles.CompositeStyle compositeStyle = new MapInfo.Styles.CompositeStyle(simpleVectorPointStyle);
                MapInfo.Data.Feature pointRow = new MapInfo.Data.Feature(table.TableInfo.Columns);
                pointRow.Geometry = point;
                pointRow.Style = compositeStyle; 
                pointRow["fx"] = dPoint.x;
                pointRow["fy"] = dPoint.y;
                pointRow["id"] = int.Parse(obj[0].ToString());
                pointRow["名"] = obj[1];
                table.InsertFeature(pointRow);
            }

2、添加线

 

            /// <summary>
            /// 向图层中添加线段
             /// <param name="tempLayerTableName">表名</param>
            /// <param name="tempLayerName">图层名</param>
            /// <param name="startPoint">线段起点坐标</param>
            /// <param name="endPoint">线段终点坐标</param>
            /// <param name="obj">字段数据</param>
            /// </summary>
            public void AddLineToLayer(string tempLayerTableName, string tempLayerName, DPoint startPoint, DPoint endPoint,int ifg, params object[] obj)
            {
                MapInfo.Mapping.Map map = MapInfo.Engine.Session.Current.MapFactory[0];
                FeatureLayer featureLayer = (MapInfo.Mapping.FeatureLayer)map.Layers[tempLayerName];
                MapInfo.Data.Table tblTemp = MapInfo.Engine.Session.Current.Catalog.GetTable(tempLayerTableName);
                FeatureGeometry pgLine = MultiCurve.CreateLine(featureLayer.CoordSys, startPoint, endPoint);
                MapInfo.Styles.SimpleLineStyle simpleLineStyle = new MapInfo.Styles.SimpleLineStyle(new LineWidth(1, LineWidthUnit.Pixel),
                    ifg, System.Drawing.Color.Red);
                MapInfo.Styles.CompositeStyle compositeStyle = new MapInfo.Styles.CompositeStyle(simpleLineStyle);
                MapInfo.Data.Feature ptLine = new MapInfo.Data.Feature(tblTemp.TableInfo.Columns);
                ptLine.Geometry = pgLine;
                ptLine.Style = compositeStyle;
                //ptLine["index"] = int.Parse(obj[0].ToString());
                //ptLine["name"] = obj[1].ToString();
                featureLayer.Table.InsertFeature(ptLine);
            }

3、添加图层

            /// <summary>
            /// 创建临时图层
              /// <param name="tableName">表名</param>
            /// <param name="layerName">图层名</param>
            /// <param name="layerName">map</param>
            /// </summary>
            public void CreateLayer(string tableName, string layerName, Map map)
            {
                MapInfo.Data.TableInfoMemTable tableInfoMemTable = new MapInfo.Data.TableInfoMemTable(tableName);
                tableInfoMemTable.Columns.Add(MapInfo.Data.ColumnFactory.CreateFeatureGeometryColumn(map.GetDisplayCoordSys()));
                tableInfoMemTable.Columns.Add(MapInfo.Data.ColumnFactory.CreateStyleColumn());
                tableInfoMemTable.Columns.Add(MapInfo.Data.ColumnFactory.CreateIntColumn("id"));//创建整形的列，当然还有其它日期型的,doule型的等等
                  tableInfoMemTable.Columns.Add(MapInfo.Data.ColumnFactory.CreateStringColumn("名", 100));//创建字符串型的列,并指定长度
                  tableInfoMemTable.Columns.Add(MapInfo.Data.ColumnFactory.CreateDoubleColumn("fx"));//创建字符串型的列,并指定长度
                  tableInfoMemTable.Columns.Add(MapInfo.Data.ColumnFactory.CreateDoubleColumn("fy"));//创建字符串型的列,并指定长度
                  MapInfo.Data.Table table = MapInfo.Engine.Session.Current.Catalog.GetTable(tableName);
                if (table != null)
                {
                    MapInfo.Engine.Session.Current.Catalog.CloseTable(tableName);
                }
                table = MapInfo.Engine.Session.Current.Catalog.CreateTable(tableInfoMemTable);
                MapInfo.Mapping.FeatureLayer tempLayer = new MapInfo.Mapping.FeatureLayer(table, layerName, layerName);
                map.Layers.Add(tempLayer);
            }