Question

我是将工作空间的文件中新增一个地图的图层，执行如下的方法之后，能够再idesktop看到添加成功，但是 通过idesktop打开之后，图层没有数据，如下图，请问一下是什么原因呢？

 public void layersTestTwo() {
        // 返回 captial、world、ocean 数据集
        Workspace workspace = new Workspace();
        WorkspaceConnectionInfo workspaceConnectionInfo = new WorkspaceConnectionInfo();

        workspaceConnectionInfo.setServer("D:/supermap/软件安装/supermap-iobjectsjava-9.0.0-15320-63946-linux64-tar.gz-chs/SampleData/World/World.smwu");
        workspaceConnectionInfo.setType(WorkspaceType.SMWU);
        workspace.open(workspaceConnectionInfo);
        Datasource datasource = workspace.getDatasources().get(0);
        Dataset dataset0 = datasource.getDatasets().get("Capital");
        Dataset dataset1 = datasource.getDatasets().get("World");
        Dataset dataset2 = datasource.getDatasets().get("Ocean");
        Dataset dataset3 = datasource.getDatasets().get("Lakes");

        // 打开地图
        Map map = new Map(workspace);
        int mapsCount = workspace.getMaps().getCount();
        System.out.println("mapsCount==>"+mapsCount);
        int mapIndex = 0;
        //获取指定序号的地图的名字
//        String  name = workspace.getMaps().get(0);

        int index = workspace.getMaps().add("Capital",map.toXML());
        System.out.println("index===>"+index);
        map.open(workspace.getMaps().get(index));
        map.refresh();
        System.out.println("mapName====>"+map.getName());

        // 返回图层集合
        Layers layers = map.getLayers();

        // 构造 LayerSettingVector 对象并进行设置
        LayerSettingVector layerSettingVector = new LayerSettingVector();
        GeoStyle style = new GeoStyle();
        style.setFillForeColor(java.awt.Color.lightGray);
        layerSettingVector.setStyle(style);

        // 对图层集合进行操作，包括删除、添加、插入、移动、清除等
        layers.clear();
        layers.add(dataset1, layerSettingVector, true);
        layers.add(dataset0, layerSettingVector, true);
        layers.add(dataset2, layerSettingVector, true);
        layers.add(dataset3, layerSettingVector, true);


        boolean result = workspace.getMaps().setMapXML(map.getName(),map.toXML());
        System.out.println("===>"+result);
        System.out.println(layers.getCount());

        workspace.save();

        // 释放资源
        map.close();
//        datasourceConnectInfo.dispose();
        workspace.dispose();
    }

Answer 1

您好，您看一下您在桌面右键点击图层，选择“全幅显示本图层”是否可行，确认一下您的数据和地图的坐标系是否对应