在ArCore Sceneform中在屏幕坐标处创建具有所需高度和宽度的矩形

如何解决在ArCore Sceneform中在屏幕坐标处创建具有所需高度和宽度的矩形

试图在ArCore Sceneform中的屏幕坐标处绘制具有所需高度和宽度的矩形。但它搞砸了。有时它太大，有时它太小，有时甚至没有对准正确的坐标。

这是我的代码。

@RequiresApi(api = Build.VERSION_CODES.N)
private void drawArRectangle(DrawingResponse drawingResponse) {
    View textView = new View(this);
    textView.setBackgroundResource(R.drawable.rectangle_drawable_ar);
    Camera camera = fragment.getArSceneView().getScene().getCamera();
    ViewRenderable.builder()
            .setView(fragment.getContext(),textView)
            .build()
            .thenAccept(viewRenderable -> {
                Ray ray = camera.screenPointToRay(((drawingResponse.getX() * width) / 100) + (drawingResponse.getWidth() / 5000) + drawingResponse.getWidth() / 1.2f,((drawingResponse.getY() * height) / 100) + (drawingResponse.getHeight() * 2.5f));
                Vector3 drawPoint = ray.getPoint(0.5f);
                float[] position = { drawPoint.x,drawPoint.y,drawPoint.z};
                float[] rotation = { camera.getWorldRotation().x,camera.getWorldRotation().y,camera.getWorldRotation().z,camera.getWorldRotation().w };

                ArSceneView arSceneView = fragment.getArSceneView();
                com.google.ar.core.Camera coreCamera = arSceneView.getArFrame().getCamera();
                if (coreCamera.getTrackingState() != TrackingState.TRACKING) {
                    return;
                }
                AnchorNode anchorNode = new AnchorNode(fragment.getArSceneView().getSession().createAnchor(new Pose(position,rotation)));
                anchorNode.setRenderable(viewRenderable);
                anchorNode.setLocalScale(new Vector3(drawingResponse.getWidth() / 5000,drawingResponse.getHeight() / 5000,0.4f));
                anchorNode.setParent(arSceneView.getScene());
                anchorNodes.add(anchorNode);
            })
            .exceptionally(throwable -> {
                Toast toast =
                        Toast.makeText(this,"Unable to load model",Toast.LENGTH_LONG);
                toast.setGravity(Gravity.CENTER,0);
                toast.show();
                return null;
            });
}

有人可以帮我吗？我想念的地方。

谢谢！