数据制作

AR三维管线的数据制作流程，同制作三维管线的数据相同。

功能实现

(1)必备类库

进行AR管线功能开发必需的类库为com.supermap.data.jar、com.supermap.mapping.jar、com.supermap.realspace.jar、com.supermap.ar.jar、sceneform-sm-11.1.0.aar，必需的so库为libimb.so。

(2)功能开发

这里介绍开发AR管线应用的关键步骤。

添加控件

在activity_main.xml添加用于显示三维场景的SceneControl控件。参考代码如下：

<com.supermap.realspace.SceneControl
    android:id = "@+id/SceneControl"
    android:layout_width="match_parent"
    android:layout_height = "match_parent">
</com.supermap.realspace.SceneControl>

加载管线数据

sceneControl = findViewById(R.id.sceneControl);
arControl = new ARControl(this, sceneControl);
sceneControl.sceneControlInitedComplete(success -> {
  arControl.setARState(true);
  arControl.setAugmentedImageTrackState(true);
   
  Workspace workspace = new Workspace();
  WorkspaceConnectionInfo info = new WorkspaceConnectionInfo();
  info.setServer(SCENE_PATH);
  info.setType(WorkspaceType.SXWU);
  sceneControl.getScene().setWorkspace(workspace);
  if (workspace.open(info)) {
    boolean mOpen = sceneControl.getScene().open(workspace.getScenes().get(0));
    layer3Ds = sceneControl.getScene().getLayers();
    layerCount = layer3Ds.getCount();
  }
  arControl.setSceneTransLation(0, 0, -5);// 调整整个场景的位置
  arControl.setARPlaneState(false);       // 隐藏平面提示
  Point3D point3D = new Point3D(1, 12, 6.5);
  // 设置cross裁剪 把地下部分隐藏
  if (layerCount > 0) {
    for (int j = 0; j < layerCount; j++) {
      layer3Ds.get(j).setCustomClipCross(point3D, new Point2D(25, 15), 180, 0, 0, 0);
      layer3Ds.get(j).setClipLineColor(new Color(255, 0, 0, 255));
    }
  }
});
sceneControl.setOnTouchListener(this);//设置监听回调

管线属性查询

if (layerCount > 0) {
  for (int i = 0; i < layerCount; i++) {
    Layer3D layer = layer3Ds.get(i);
    if (layer != null && layer.getName() != null) {
      FieldInfos fieldInfos = layer.getFieldInfos();
      Feature3D feature = null;
      Layer3DOSGBFile layer3d = null;
      if (layer.getType() == Layer3DType.OSGBFILE) {
        layer3d = (Layer3DOSGBFile) layer;
      } else if (layer.getType() == Layer3DType.VECTORFILE) {
        feature = selection.toFeature3D();
      }
      int count = fieldInfos.getCount();
      if (count > 0) {
        Object[] str = layer3d.getAllFieldValueOfLastSelectedObject();
        if (str != null) {            
          for (int j = 0; j < count; j++) {
            String name = fieldInfos.get(j).getName();
            String strValue;
            Object value;
            if (feature == null) {
              value = str[j];
            } else {
              value = feature.getFieldValue(name);
            }
            if (value.equals("NULL")) {
              strValue = "";
            } else {
              strValue = value.toString();
            }
          }
        }
      }
    }
  }
}