Typecast fails if `getObjectByName` method returns objects other than Object3D

Please refer the example mentioned below:

const scene = new THREE.scene()
const upperPlaneCloudMaterial = new THREE.PointsMaterial({
            vertexColors: THREE.VertexColors,
            size: 0.08,
            clippingPlanes: []
        })
const pointsObject = new THREE.Points(this.cloudGeometry, upperPlaneCloudMaterial)
const pointsObject.name = 'pointsObject'
scene.add(this.cloudField)

Now while getting cloud field by method getObjectByName()

const pointsObject = scene.getObjectByName('pointsObject')
pointsObject.geometry.attributes.position.needsUpdate = true
pointsObject.geometry.attributes.position.setArray(attributesData.position)
pointsObject.geometry.computeBoundingSphere()

It gives type error as mentioned below: Property 'geometry' does not exist on type 'Object3D'

Three.js version

• Dev
• r115
• …

Browser

• All of them
• Chrome
• Firefox
• Internet Explorer

OS

• All of them
• Windows
• macOS
• Linux
• Android
• iOS

[donmccurdy]

I don’t see a cast in your code above — does this also fail to compile in TypeScript?

const points = scene.getObjectByName('pointsObject') as THREE.Points;
const position = points.geometry.getAttribute('position');

[sarthak-saxena]

@sarthak-saxena It seems @donmccurdy solutions is more appropriate than changing the declaration of getObjectByName(). Can this issue be closed?

Yes we can close this issue now