如何在ARcore的帮助下相对于一个锚定位锚点/节点/锚点？

Question

我在android studio中创建内部构建AR导航。我正在寻找一种方法来将锚点与其他锚点“连接”，或者可能是锚节点/节点。我不确定使用哪一个。基于我将强制用户创建的第一个锚点我想绘制相对于第一个锚点的位置的其余节点。我尝试过如下所示的方法但没有成功。有任何想法吗 ？

private void getAnchors(DataSnapshot dataSnapshot){
    double temp_x=0.0;
    double temp_y=0.0;
    double temp_z=0.0;
    Vector3 wektor3;

    for(DataSnapshot ds : dataSnapshot.getChildren())
    {
          ObjectConversion vars = ds.getValue(ObjectConversion.class);
          temp_x = vars.getX();
          temp_y = vars.getY();
          temp_z = vars.getZ();

          wektor3 = new Vector3((float)temp_x,(float)temp_y,(float)temp_z);

          //Pose pose = new Pose(translation,rotation);
          Anchor anchor = download_hit_result.createAnchor();
          AnchorNode anchorNode = new AnchorNode(anchor);
          Node node = new Node();

          node.setParent(anchorNode);
          node.setWorldPosition(wektor3);
          node.setRenderable(andyRenderable);

          //anchorNode.setParent(arFragment.getArSceneView().getScene());
          //anchorNode.setRenderable(andyRenderable);
          //anchorNode.setParent(arFragment.getArSceneView().getScene());
    }
}

Answer 1

我发现了一个错误。对于任何需要根据不同对象定位对象的人。简单地说，必须将一个anchornode的setParent设置为arFragment。我希望这有助于未来的任何人：

private void getAnchors(DataSnapshot dataSnapshot){
    double temp_x=0.0;
    double temp_y=0.0;
    double temp_z=0.0;
    long   temp_val=0;
    String temp_room="";
    float[] translation= new float[3];
    float[] rotation = {0.0f,0.0f,0.0f,0.0f};
    Vector3 wektor3;
    for(DataSnapshot ds : dataSnapshot.getChildren())
    {
        //TODO: create anchors with downloaded values when in the same position use hitpose.creatanchor with pose.

          ObjectConversion vars = ds.getValue(ObjectConversion.class);
          temp_x = vars.getX();
          temp_y = vars.getY();
          temp_z = vars.getZ();
          temp_room = vars.getRoom();
          temp_val=vars.getType();

          translation[0]=(float) temp_x;
          translation[1]=(float) temp_y;
          translation[2]=(float) temp_z;
          wektor3 = new Vector3((float)temp_x,(float)temp_y,(float)temp_z);
          Pose pose = new Pose(translation,rotation);

          Anchor anchorx = download_hit_result.getTrackable().createAnchor(pose);
          AnchorNode anchorNodex = new AnchorNode(anchorx);
          anchorNodex.setParent(arFragment.getArSceneView().getScene());
          anchorNodex.setRenderable(andyRenderable);
    }
}