Question

我正在尝试将对象放置在特定位置而不点击，是否有任何直接方法将对象放置在现实世界位置。

Answer 1

当然可以做到这一点。

搜索平坦表面。
2. 覆盖onUpdate 方法。

在可追踪对象之间循环，然后您的模型被投影而无需点击。

我只是给你一个想法，onUpdate方法是什么样的，这是伪代码

   frame = arFragment.getArSceneView().getArFrame();
    if (frame != null) {
        //get the trackables 
        Iterator<Plane> var3 = frame.getUpdatedTrackables(Plane.class).iterator();
        while (var3.hasNext()) {
            Plane plane = var3.next();

            //If a plane has been detected & is being tracked by ARCore
            if (plane.getTrackingState() == TrackingState.TRACKING) {

                //Hide the plane discovery helper animation
                arFragment.getPlaneDiscoveryController().hide();


                //Get all added anchors to the frame
                Iterator<Anchor> iterableAnchor = frame.getUpdatedAnchors().iterator();

                //place the first object only if no previous anchors were added
                if (!iterableAnchor.hasNext()) {
                    //Perform a hit test at the center of the screen to place an object without tapping
                    List<HitResult> hitTest = frame.hitTest(getScreenVector3().x, getScreenVector3().y);

                    //iterate through all hits
                    Iterator<HitResult> hitTestIterator = hitTest.iterator();
                    while (hitTestIterator.hasNext()) {
                        HitResult hitResult = hitTestIterator.next();

                        //Create an anchor at the plane hit

                            Anchor modelAnchor = plane.createAnchor(hitResult.getHitPose());

                            //Attach a node to this anchor with the scene as the parent
                            anchorNode = new AnchorNode(modelAnchor);
                            anchorNode.setParent(arFragment.getArSceneView().getScene());

                            **create a new TranformableNode that will carry our model**
                            }


                    }
                }
            }
        }

    }

Answer 2

您可以将节点直接添加到场景：

node.localPosition = Vector3(x, y, z)
arSceneView.scene.addChild(node)

如何在ARcore中的特定位置放置对象？

2 个答案: