初探GIS Mapxtreme 添加点 层 线

1、添加点

View Code

 　　　　　　 ///</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

  View Code

   
     

    
       
    
      ///
    
       
    
      <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

View Code

   
     

    
       
    
      ///
    
       
    
      <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);
 }