Question

实际上，我正在工作名片图像检测以显示那里的业务资料。我已经实现了图像检测，平面动画。这是我的问题，当检测到图像以及飞机时，应显示用户名标签，个人资料和网站。我正在尝试显示用户名标签，但是我已经在SCNText中完成了。如何使用SCNNode标签用户iamge。

这是我尝试的代码：

guard let imageAnchor = anchor as? ARImageAnchor else {return}
if let imageName  = imageAnchor.referenceImage.name {

    print(imageName)

    if imageName == "card" {

   //                let planeGeometry = SCNPlane(width: 25, height: 25)
   //                planeGeometry.firstMaterial?.isDoubleSided = true
  //                planeGeometry.firstMaterial?.diffuse.contents = UIColor.blue.withAlphaComponent(0.5)
         //--
        let plane = SCNPlane(width: 4,
                                 height: 10)
        plane.firstMaterial?.diffuse.contents = UIColor.init(red: 0, green: 189, blue: 255, alpha: 0.88)
        plane.cornerRadius = 0.25

        let planeNode = SCNNode(geometry: plane)
        planeNode.opacity = 0.25
        planeNode.eulerAngles.x = -.pi / 2
   //                planeNode.position = SCNVector3(x:0, y:0, z:2)
        planeNode.runAction(SCNAction.moveBy(x: 0, y: 0, z: 5, duration: 0.5))


        let nameText = SCNText()
        nameText.firstMaterial?.diffuse.contents = "Gowdhaman"
        nameText.font = UIFont(name: "Avenir-medium", size: 16)
        nameText.firstMaterial?.diffuse.contents = UIColor.red
        nameText.firstMaterial?.diffuse.contents = SCNVector3.init(0, 0, 0)
     //            nameText.firstMaterial?.diffuse.contents =

     //                nameText.firstMaterial?.diffuse.contents = SCNAction.moveBy(x: 0, y: 0, z: 5, duration: 1)

        let nameLabelNode = SCNNode(geometry: nameText)
        let eulerAngles = 
    self.sceneView.session.currentFrame?.camera.eulerAngles

        nameLabelNode.eulerAngles = SCNVector3((eulerAngles?.x)!, 
   (eulerAngles?.y)!, (eulerAngles?.z)! - .pi/6)

        planeNode.addChildNode(nameLabelNode)
        node.addChildNode(planeNode)

        self.sceneView.scene.rootNode.addChildNode(node)



    }

}

Answer 1

我目前正在从事一个非常相似的项目！我尝试过的一件事是创建一个SCNPlane，然后将其内容设置为renderer函数内部的图像

func renderer(_ renderer: SCNSceneRenderer, nodeFor anchor: ARAnchor) -> SCNNode? {

        let node = SCNNode()

        ......

        // create a plane to contain the image
        let profilePlane = SCNPlane(width: 0.035, height: 0.035)

        // Add the profile picture file in your assets folder to the contents of your plane
        profilePlane.firstMaterial?.diffuse.contents = "ProfilePictureName"

        let profilePlaneNode = SCNNode(geometry: profilePlane) 

        node.addChildNode(profilePlaneNode)

}

使用此代码，它将在imageAnchor的中心生成一个正方形，因此您需要在之后调整一些内容

如何通过ARKit中的手势操作在SCNNode中添加标签节点和用户图像？

1 个答案: