Aframe, 3dio scene: orientation changes

Question

I used to upload a 3dio scene into a-frame via the bakedModelUrl

<a-entity io3d-data3d="key:/3f995099-d624-4c8e-ab6b-1fd5e3799173/170515-0913-4p3ktf/1e588a3b-90ac-4a32-b5b8-ff2fda7f87c4.gz.data3d.buffer"></a-entity>

which is described here: https://3d.io/docs/api/1/aframe-components.html

but while using this method (via sceneId):

const scene = document.querySelector('a-scene')
io3d.scene.getAframeElements(sceneId)
.then(elements => {
// this will give us two elements
// The first is the actual scene according to the scene structure hierarchy
// The second is the camera with potential waypoints that where defined in the scene structure
// you can leverage the waypoints using our A-Frame tour component
elements.forEach((el) => {
  // add elements to the scene
  scene.appendChild(el)
})
scene.appendChild(element)
})

which is described here: https://3d.io/docs/api/1/scene.html, I don't seem to get the same orientation of the models.

have a look:

https://codepen.io/Anathapindika/pen/mqzGPB?editors=1011 (bakedModelUrl Method - camera position = "10 10 0")

https://codepen.io/Anathapindika/pen/RjBxqO (sceneId Methode - camera position = "0 10 0")

Answer 1

io3d.scene.getAframeElements(sceneId)

imports the entire scene hierarchy and creates corresponding A-Frame nodes.

The baked model is bound to the level node which is a child of the plan node. the plan node is the highest hierarchy. https://3d.io/docs/api/1/scene-structure-reference.html#level

An assumption is that in your case the plan node has rotation or position changes.

To import a scene without applying the root rotation and position you have two options:

Adapt the sceneStructure before importing:

io3d.scene.getStructure(sceneId)
  .then(sceneStructure => {
     // root node is the 'plan' node. reset it's position and rotation
     sceneStructure.x = sceneStructure.z = sceneStructure.ry = 0
     // convert sceneStructure to A-Frame Elements
     var elements = io3d.scene.getAframeElementsFromSceneStructure(sceneStructure)
     // add elements to the scene
     elements.forEach((el) => {
       // add elements to the scene
       scene.appendChild(el)
     })
  })

Or adapt the root DOM element directly after importing

io3d.scene.getAframeElements(sceneId)
  .then(elements => {
    elements[0].setAttribute('position', '0 0 0')
    elements[0].setAttribute('rotation', '0 0 0')
    // add elements to the scene
    elements.forEach((el) => {
      // add elements to the scene
      scene.appendChild(el)
    })
 })