3d unit object dimension – Cocos Creator

Hello!
How can I get 3d object dimension in cocos models?
I attempted utilizing getComponent(Collider).worldBounds.halfExtents however propably its not what I’m on the lookout for
another options?

What do you want 3d object dimension for?

I’ve to maneuver, rotate and scale my 3d object to suit 2nd UI rework. However as you possibly can see on the display it doesn’t match nicely. On this iteration I’m utilizing collider boundingSphere radius to get dimension (i don’t care a lot about what facet of my 3d object is bigger than others)

I exploit this code:

import { Digital camera, Collider, Part, Enter, enter, Node, Quat, RigidBody, UITransform, Vec3, view, _decorator } from 'cc';
const { ccclass, property } = _decorator;

@ccclass('NewComponent')
export class NewComponent extends Part {

    @property(Node)
    object3D: Node

    @property(Node)
    objectUI: Node

    @property(Digital camera)
    digicam: Digital camera

    begin() {
        enter.on(Enter.EventType.TOUCH_END, this.transfer, this)
    }

    transfer() {
        this.object3D.getComponent(Collider).enabled = false
        this.object3D.getComponent(RigidBody).enabled = false

        // discovering rotation
        const newObjectRotation = new Quat()
        Quat.fromEuler(newObjectRotation, 0, 0, 0)

        // discovering place
        let scaleX = view.getScaleX()
        let scaleY = view.getScaleY()

        const localPosX = this.objectUI.worldPosition.x * scaleX;
        const localPosY = this.objectUI.worldPosition.y * scaleY;

        const newLocal_2 = new Vec3(localPosX, localPosY, 0.5);

        const newObjectPos = this.digicam.screenToWorld(newLocal_2);

        // discovering scale
        const screenHeightInUnits = this.digicam.orthoHeight * 2;
        const screenWidthInUnits = screenHeightInUnits * view.getVisibleSize().width / view.getVisibleSize().peak

        const xPixelsInUnit = view.getVisibleSize().width / screenWidthInUnits
        const yPixelsInUnit = view.getVisibleSize().peak / screenHeightInUnits

        const contentSize = this.objectUI.getComponent(UITransform).contentSize;

        const radius = this.object3D.getComponent(Collider).boundingSphere.radius

        let newObjectScale: Vec3
        let multiplier: quantity = 1

        const yContentSizeInUnits = contentSize.y / yPixelsInUnit
        const xContentSizeInUnits = contentSize.x / xPixelsInUnit

        // it is advisable match a circle on the smaller facet of the sprite
        if (yContentSizeInUnits <= xContentSizeInUnits) {
            multiplier = yContentSizeInUnits / (radius * 2)
        } else {
            multiplier = xContentSizeInUnits / (radius * 2)
        }

        newObjectScale = new Vec3(this.object3D.worldScale).multiplyScalar(multiplier)

        this.object3D.worldPosition = newObjectPos
        this.object3D.worldScale = newObjectScale
        this.object3D.worldRotation = newObjectRotation
    }
}

Earlier than shifting:

After shifting:

Btw I can use collider world sure by utilizing:

        const objectUnitSize = new Vec3(this.object3D.getComponent(Collider).worldBounds.halfExtents).multiplyScalar(2)

        let newObjectScale: Vec3
        let multiplier: quantity = 1

        const yContentSizeInUnits = contentSize.y / yPixelsInUnit
        const xContentSizeInUnits = contentSize.x / xPixelsInUnit

        // it is advisable match a circle on the smaller facet of the sprite
        if (yContentSizeInUnits <= xContentSizeInUnits) {
            multiplier = yContentSizeInUnits / objectUnitSize.y
        } else {
            multiplier = xContentSizeInUnits / objectUnitSize.x
        }

One way or the other it’s ended up the identical manner as utilizing radius

I’m going to share my undertaking with code in case it’s possible you’ll want this to check by your self
NewProject_2.zip (1.6 MB)

Hello once more
I made some tweeks to make the issue extra practical for my case

            const halfSize = this.object3D.getComponent(Collider).worldBounds.halfExtents.multiplyScalar(2)

            let newObjectScale: Vec3
            let multiplier: quantity = 1

            const yContentSizeInUnits = contentSize.y / yPixelsInUnit
            const xContentSizeInUnits = contentSize.x / xPixelsInUnit

            // it is advisable match a circle on the smaller facet of the sprite
            if (yContentSizeInUnits <= xContentSizeInUnits) {
                multiplier = yContentSizeInUnits / (halfSize.y * 2)
            } else {
                multiplier = xContentSizeInUnits / (halfSize.x * 2)
            }

            newObjectScale = new Vec3(this.object3D.worldScale).multiplyScalar(multiplier)

It really works fantastic with one object:

However gained’t work with different:

I assume the issue is with scaling of my object however anyway I can’t get the end result I need
NewProject_2.zip (2.3 MB)