The Cube
<style>
body { margin: 0; }
canvas { width: 100%; height: 100% }
</style>
<body>
<script src="https://ah-sandbox.wdfiles.com/local--files/the-cube/three.min.js"></script>
<script type="module" src="https://ah-sandbox.wdfiles.com/local--code/the-cube/2"></script>
<script>
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 5 );
camera.position.z = 0;
 
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
 
var controls = new TrackballControls( camera );
controls.rotateSpeed = 1.0;
controls.noZoom = true;
controls.noPan = true;
 
controls.addEventListener( 'change', render );
 
var geometry = new THREE.BoxGeometry( 1, 2, 3 );
var material = new THREE.MeshLambertMaterial( { color: 0x593781 } );
var cube = new THREE.Mesh( geometry, material );
//scene.add( cube );
 
var geometry1 = new THREE.PlaneGeometry( 5, 5 );
var material1 = new THREE.MeshLambertMaterial( {color: 0xffffff, side: THREE.DoubleSide} );
var plane0 = new THREE.Mesh( geometry1, material1 );
scene.add( plane0 );
plane0.position.set( 0, 0, -2.5 );
 
var plane1 = new THREE.Mesh( geometry1, material1 );
var plane2 = new THREE.Mesh( geometry1, material1 )
var plane3 = new THREE.Mesh( geometry1, material1 );
var plane4 = new THREE.Mesh( geometry1, material1 )
scene.add( plane1 );
scene.add( plane2 );
scene.add( plane3 );
scene.add( plane4 );
plane1.rotation.x = Math.PI / 2
plane2.rotation.x = Math.PI / 2
plane3.rotation.y = Math.PI / 2
plane4.rotation.y = Math.PI / 2
plane1.position.set( 0, 2.5, 0 );
plane2.position.set( 0, -2.5, 0 );
plane3.position.set( 2.5, 0, 0 );
plane4.position.set( -2.5, 0, 0 );
 
var plane5 = new THREE.Mesh( geometry1, material1 );
scene.add( plane5 );
plane5.position.set( 0, 0, 2.5);
 
var light = new THREE.PointLight('#ffffff')
light.dispose = 0
//light.castShadow = True
light.decay = 2
light.position.set(0, 0, 0)
scene.add(light)
 
cube.position.set( 0, 1, 0 );
function render() {
    controls.update();
    requestAnimationFrame( render );
    renderer.render( scene, camera );
}
render();
</script>
</body>
import {
    EventDispatcher,
    MOUSE,
    Quaternion,
    Vector2,
    Vector3
} from 'https://ah-sandbox.wdfiles.com/local--files/the-cube/three.min.js';
 
const _changeEvent = { type: 'change' };
const _startEvent = { type: 'start' };
const _endEvent = { type: 'end' };
 
class TrackballControls extends EventDispatcher {
 
    constructor( object, domElement ) {
 
        super();
 
        const scope = this;
        const STATE = { NONE: - 1, ROTATE: 0, ZOOM: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_ZOOM_PAN: 4 };
 
        this.object = object;
        this.domElement = domElement;
        this.domElement.style.touchAction = 'none'; // disable touch scroll
 
        // API
 
        this.enabled = true;
 
        this.screen = { left: 0, top: 0, width: 0, height: 0 };
 
        this.rotateSpeed = 1.0;
        this.zoomSpeed = 1.2;
        this.panSpeed = 0.3;
 
        this.noRotate = false;
        this.noZoom = false;
        this.noPan = false;
 
        this.staticMoving = false;
        this.dynamicDampingFactor = 0.2;
 
        this.minDistance = 0;
        this.maxDistance = Infinity;
 
        this.keys = [ 'KeyA' /*A*/, 'KeyS' /*S*/, 'KeyD' /*D*/ ];
 
        this.mouseButtons = { LEFT: MOUSE.ROTATE, MIDDLE: MOUSE.DOLLY, RIGHT: MOUSE.PAN };
 
        // internals
 
        this.target = new Vector3();
 
        const EPS = 0.000001;
 
        const lastPosition = new Vector3();
        let lastZoom = 1;
 
        let _state = STATE.NONE,
            _keyState = STATE.NONE,
 
            _touchZoomDistanceStart = 0,
            _touchZoomDistanceEnd = 0,
 
            _lastAngle = 0;
 
        const _eye = new Vector3(),
 
            _movePrev = new Vector2(),
            _moveCurr = new Vector2(),
 
            _lastAxis = new Vector3(),
 
            _zoomStart = new Vector2(),
            _zoomEnd = new Vector2(),
 
            _panStart = new Vector2(),
            _panEnd = new Vector2(),
 
            _pointers = [],
            _pointerPositions = {};
 
        // for reset
 
        this.target0 = this.target.clone();
        this.position0 = this.object.position.clone();
        this.up0 = this.object.up.clone();
        this.zoom0 = this.object.zoom;
 
        // methods
 
        this.handleResize = function () {
 
            const box = scope.domElement.getBoundingClientRect();
            // adjustments come from similar code in the jquery offset() function
            const d = scope.domElement.ownerDocument.documentElement;
            scope.screen.left = box.left + window.pageXOffset - d.clientLeft;
            scope.screen.top = box.top + window.pageYOffset - d.clientTop;
            scope.screen.width = box.width;
            scope.screen.height = box.height;
 
        };
 
        const getMouseOnScreen = ( function () {
 
            const vector = new Vector2();
 
            return function getMouseOnScreen( pageX, pageY ) {
 
                vector.set(
                    ( pageX - scope.screen.left ) / scope.screen.width,
                    ( pageY - scope.screen.top ) / scope.screen.height
                );
 
                return vector;
 
            };
 
        }() );
 
        const getMouseOnCircle = ( function () {
 
            const vector = new Vector2();
 
            return function getMouseOnCircle( pageX, pageY ) {
 
                vector.set(
                    ( ( pageX - scope.screen.width * 0.5 - scope.screen.left ) / ( scope.screen.width * 0.5 ) ),
                    ( ( scope.screen.height + 2 * ( scope.screen.top - pageY ) ) / scope.screen.width ) // screen.width intentional
                );
 
                return vector;
 
            };
 
        }() );
 
        this.rotateCamera = ( function () {
 
            const axis = new Vector3(),
                quaternion = new Quaternion(),
                eyeDirection = new Vector3(),
                objectUpDirection = new Vector3(),
                objectSidewaysDirection = new Vector3(),
                moveDirection = new Vector3();
 
            return function rotateCamera() {
 
                moveDirection.set( _moveCurr.x - _movePrev.x, _moveCurr.y - _movePrev.y, 0 );
                let angle = moveDirection.length();
 
                if ( angle ) {
 
                    _eye.copy( scope.object.position ).sub( scope.target );
 
                    eyeDirection.copy( _eye ).normalize();
                    objectUpDirection.copy( scope.object.up ).normalize();
                    objectSidewaysDirection.crossVectors( objectUpDirection, eyeDirection ).normalize();
 
                    objectUpDirection.setLength( _moveCurr.y - _movePrev.y );
                    objectSidewaysDirection.setLength( _moveCurr.x - _movePrev.x );
 
                    moveDirection.copy( objectUpDirection.add( objectSidewaysDirection ) );
 
                    axis.crossVectors( moveDirection, _eye ).normalize();
 
                    angle *= scope.rotateSpeed;
                    quaternion.setFromAxisAngle( axis, angle );
 
                    _eye.applyQuaternion( quaternion );
                    scope.object.up.applyQuaternion( quaternion );
 
                    _lastAxis.copy( axis );
                    _lastAngle = angle;
 
                } else if ( ! scope.staticMoving && _lastAngle ) {
 
                    _lastAngle *= Math.sqrt( 1.0 - scope.dynamicDampingFactor );
                    _eye.copy( scope.object.position ).sub( scope.target );
                    quaternion.setFromAxisAngle( _lastAxis, _lastAngle );
                    _eye.applyQuaternion( quaternion );
                    scope.object.up.applyQuaternion( quaternion );
 
                }
 
                _movePrev.copy( _moveCurr );
 
            };
 
        }() );
 
        this.zoomCamera = function () {
 
            let factor;
 
            if ( _state === STATE.TOUCH_ZOOM_PAN ) {
 
                factor = _touchZoomDistanceStart / _touchZoomDistanceEnd;
                _touchZoomDistanceStart = _touchZoomDistanceEnd;
 
                if ( scope.object.isPerspectiveCamera ) {
 
                    _eye.multiplyScalar( factor );
 
                } else if ( scope.object.isOrthographicCamera ) {
 
                    scope.object.zoom /= factor;
                    scope.object.updateProjectionMatrix();
 
                } else {
 
                    console.warn( 'THREE.TrackballControls: Unsupported camera type' );
 
                }
 
            } else {
 
                factor = 1.0 + ( _zoomEnd.y - _zoomStart.y ) * scope.zoomSpeed;
 
                if ( factor !== 1.0 && factor > 0.0 ) {
 
                    if ( scope.object.isPerspectiveCamera ) {
 
                        _eye.multiplyScalar( factor );
 
                    } else if ( scope.object.isOrthographicCamera ) {
 
                        scope.object.zoom /= factor;
                        scope.object.updateProjectionMatrix();
 
                    } else {
 
                        console.warn( 'THREE.TrackballControls: Unsupported camera type' );
 
                    }
 
                }
 
                if ( scope.staticMoving ) {
 
                    _zoomStart.copy( _zoomEnd );
 
                } else {
 
                    _zoomStart.y += ( _zoomEnd.y - _zoomStart.y ) * this.dynamicDampingFactor;
 
                }
 
            }
 
        };
 
        this.panCamera = ( function () {
 
            const mouseChange = new Vector2(),
                objectUp = new Vector3(),
                pan = new Vector3();
 
            return function panCamera() {
 
                mouseChange.copy( _panEnd ).sub( _panStart );
 
                if ( mouseChange.lengthSq() ) {
 
                    if ( scope.object.isOrthographicCamera ) {
 
                        const scale_x = ( scope.object.right - scope.object.left ) / scope.object.zoom / scope.domElement.clientWidth;
                        const scale_y = ( scope.object.top - scope.object.bottom ) / scope.object.zoom / scope.domElement.clientWidth;
 
                        mouseChange.x *= scale_x;
                        mouseChange.y *= scale_y;
 
                    }
 
                    mouseChange.multiplyScalar( _eye.length() * scope.panSpeed );
 
                    pan.copy( _eye ).cross( scope.object.up ).setLength( mouseChange.x );
                    pan.add( objectUp.copy( scope.object.up ).setLength( mouseChange.y ) );
 
                    scope.object.position.add( pan );
                    scope.target.add( pan );
 
                    if ( scope.staticMoving ) {
 
                        _panStart.copy( _panEnd );
 
                    } else {
 
                        _panStart.add( mouseChange.subVectors( _panEnd, _panStart ).multiplyScalar( scope.dynamicDampingFactor ) );
 
                    }
 
                }
 
            };
 
        }() );
 
        this.checkDistances = function () {
 
            if ( ! scope.noZoom || ! scope.noPan ) {
 
                if ( _eye.lengthSq() > scope.maxDistance * scope.maxDistance ) {
 
                    scope.object.position.addVectors( scope.target, _eye.setLength( scope.maxDistance ) );
                    _zoomStart.copy( _zoomEnd );
 
                }
 
                if ( _eye.lengthSq() < scope.minDistance * scope.minDistance ) {
 
                    scope.object.position.addVectors( scope.target, _eye.setLength( scope.minDistance ) );
                    _zoomStart.copy( _zoomEnd );
 
                }
 
            }
 
        };
 
        this.update = function () {
 
            _eye.subVectors( scope.object.position, scope.target );
 
            if ( ! scope.noRotate ) {
 
                scope.rotateCamera();
 
            }
 
            if ( ! scope.noZoom ) {
 
                scope.zoomCamera();
 
            }
 
            if ( ! scope.noPan ) {
 
                scope.panCamera();
 
            }
 
            scope.object.position.addVectors( scope.target, _eye );
 
            if ( scope.object.isPerspectiveCamera ) {
 
                scope.checkDistances();
 
                scope.object.lookAt( scope.target );
 
                if ( lastPosition.distanceToSquared( scope.object.position ) > EPS ) {
 
                    scope.dispatchEvent( _changeEvent );
 
                    lastPosition.copy( scope.object.position );
 
                }
 
            } else if ( scope.object.isOrthographicCamera ) {
 
                scope.object.lookAt( scope.target );
 
                if ( lastPosition.distanceToSquared( scope.object.position ) > EPS || lastZoom !== scope.object.zoom ) {
 
                    scope.dispatchEvent( _changeEvent );
 
                    lastPosition.copy( scope.object.position );
                    lastZoom = scope.object.zoom;
 
                }
 
            } else {
 
                console.warn( 'THREE.TrackballControls: Unsupported camera type' );
 
            }
 
        };
 
        this.reset = function () {
 
            _state = STATE.NONE;
            _keyState = STATE.NONE;
 
            scope.target.copy( scope.target0 );
            scope.object.position.copy( scope.position0 );
            scope.object.up.copy( scope.up0 );
            scope.object.zoom = scope.zoom0;
 
            scope.object.updateProjectionMatrix();
 
            _eye.subVectors( scope.object.position, scope.target );
 
            scope.object.lookAt( scope.target );
 
            scope.dispatchEvent( _changeEvent );
 
            lastPosition.copy( scope.object.position );
            lastZoom = scope.object.zoom;
 
        };
 
        // listeners
 
        function onPointerDown( event ) {
 
            if ( scope.enabled === false ) return;
 
            if ( _pointers.length === 0 ) {
 
                scope.domElement.setPointerCapture( event.pointerId );
 
                scope.domElement.addEventListener( 'pointermove', onPointerMove );
                scope.domElement.addEventListener( 'pointerup', onPointerUp );
 
            }
 
            //
 
            addPointer( event );
 
            if ( event.pointerType === 'touch' ) {
 
                onTouchStart( event );
 
            } else {
 
                onMouseDown( event );
 
            }
 
        }
 
        function onPointerMove( event ) {
 
            if ( scope.enabled === false ) return;
 
            if ( event.pointerType === 'touch' ) {
 
                onTouchMove( event );
 
            } else {
 
                onMouseMove( event );
 
            }
 
        }
 
        function onPointerUp( event ) {
 
            if ( scope.enabled === false ) return;
 
            if ( event.pointerType === 'touch' ) {
 
                onTouchEnd( event );
 
            } else {
 
                onMouseUp();
 
            }
 
            //
 
            removePointer( event );
 
            if ( _pointers.length === 0 ) {
 
                scope.domElement.releasePointerCapture( event.pointerId );
 
                scope.domElement.removeEventListener( 'pointermove', onPointerMove );
                scope.domElement.removeEventListener( 'pointerup', onPointerUp );
 
            }
 
        }
 
        function onPointerCancel( event ) {
 
            removePointer( event );
 
        }
 
        function keydown( event ) {
 
            if ( scope.enabled === false ) return;
 
            window.removeEventListener( 'keydown', keydown );
 
            if ( _keyState !== STATE.NONE ) {
 
                return;
 
            } else if ( event.code === scope.keys[ STATE.ROTATE ] && ! scope.noRotate ) {
 
                _keyState = STATE.ROTATE;
 
            } else if ( event.code === scope.keys[ STATE.ZOOM ] && ! scope.noZoom ) {
 
                _keyState = STATE.ZOOM;
 
            } else if ( event.code === scope.keys[ STATE.PAN ] && ! scope.noPan ) {
 
                _keyState = STATE.PAN;
 
            }
 
        }
 
        function keyup() {
 
            if ( scope.enabled === false ) return;
 
            _keyState = STATE.NONE;
 
            window.addEventListener( 'keydown', keydown );
 
        }
 
        function onMouseDown( event ) {
 
            if ( _state === STATE.NONE ) {
 
                switch ( event.button ) {
 
                    case scope.mouseButtons.LEFT:
                        _state = STATE.ROTATE;
                        break;
 
                    case scope.mouseButtons.MIDDLE:
                        _state = STATE.ZOOM;
                        break;
 
                    case scope.mouseButtons.RIGHT:
                        _state = STATE.PAN;
                        break;
 
                }
 
            }
 
            const state = ( _keyState !== STATE.NONE ) ? _keyState : _state;
 
            if ( state === STATE.ROTATE && ! scope.noRotate ) {
 
                _moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
                _movePrev.copy( _moveCurr );
 
            } else if ( state === STATE.ZOOM && ! scope.noZoom ) {
 
                _zoomStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
                _zoomEnd.copy( _zoomStart );
 
            } else if ( state === STATE.PAN && ! scope.noPan ) {
 
                _panStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
                _panEnd.copy( _panStart );
 
            }
 
            scope.dispatchEvent( _startEvent );
 
        }
 
        function onMouseMove( event ) {
 
            const state = ( _keyState !== STATE.NONE ) ? _keyState : _state;
 
            if ( state === STATE.ROTATE && ! scope.noRotate ) {
 
                _movePrev.copy( _moveCurr );
                _moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
 
            } else if ( state === STATE.ZOOM && ! scope.noZoom ) {
 
                _zoomEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );
 
            } else if ( state === STATE.PAN && ! scope.noPan ) {
 
                _panEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );
 
            }
 
        }
 
        function onMouseUp() {
 
            _state = STATE.NONE;
 
            scope.dispatchEvent( _endEvent );
 
        }
 
        function onMouseWheel( event ) {
 
            if ( scope.enabled === false ) return;
 
            if ( scope.noZoom === true ) return;
 
            event.preventDefault();
 
            switch ( event.deltaMode ) {
 
                case 2:
                    // Zoom in pages
                    _zoomStart.y -= event.deltaY * 0.025;
                    break;
 
                case 1:
                    // Zoom in lines
                    _zoomStart.y -= event.deltaY * 0.01;
                    break;
 
                default:
                    // undefined, 0, assume pixels
                    _zoomStart.y -= event.deltaY * 0.00025;
                    break;
 
            }
 
            scope.dispatchEvent( _startEvent );
            scope.dispatchEvent( _endEvent );
 
        }
 
        function onTouchStart( event ) {
 
            trackPointer( event );
 
            switch ( _pointers.length ) {
 
                case 1:
                    _state = STATE.TOUCH_ROTATE;
                    _moveCurr.copy( getMouseOnCircle( _pointers[ 0 ].pageX, _pointers[ 0 ].pageY ) );
                    _movePrev.copy( _moveCurr );
                    break;
 
                default: // 2 or more
                    _state = STATE.TOUCH_ZOOM_PAN;
                    const dx = _pointers[ 0 ].pageX - _pointers[ 1 ].pageX;
                    const dy = _pointers[ 0 ].pageY - _pointers[ 1 ].pageY;
                    _touchZoomDistanceEnd = _touchZoomDistanceStart = Math.sqrt( dx * dx + dy * dy );
 
                    const x = ( _pointers[ 0 ].pageX + _pointers[ 1 ].pageX ) / 2;
                    const y = ( _pointers[ 0 ].pageY + _pointers[ 1 ].pageY ) / 2;
                    _panStart.copy( getMouseOnScreen( x, y ) );
                    _panEnd.copy( _panStart );
                    break;
 
            }
 
            scope.dispatchEvent( _startEvent );
 
        }
 
        function onTouchMove( event ) {
 
            trackPointer( event );
 
            switch ( _pointers.length ) {
 
                case 1:
                    _movePrev.copy( _moveCurr );
                    _moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
                    break;
 
                default: // 2 or more
 
                    const position = getSecondPointerPosition( event );
 
                    const dx = event.pageX - position.x;
                    const dy = event.pageY - position.y;
                    _touchZoomDistanceEnd = Math.sqrt( dx * dx + dy * dy );
 
                    const x = ( event.pageX + position.x ) / 2;
                    const y = ( event.pageY + position.y ) / 2;
                    _panEnd.copy( getMouseOnScreen( x, y ) );
                    break;
 
            }
 
        }
 
        function onTouchEnd( event ) {
 
            switch ( _pointers.length ) {
 
                case 0:
                    _state = STATE.NONE;
                    break;
 
                case 1:
                    _state = STATE.TOUCH_ROTATE;
                    _moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
                    _movePrev.copy( _moveCurr );
                    break;
 
                case 2:
                    _state = STATE.TOUCH_ZOOM_PAN;
 
                    for ( let i = 0; i < _pointers.length; i ++ ) {
 
                        if ( _pointers[ i ].pointerId !== event.pointerId ) {
 
                            const position = _pointerPositions[ _pointers[ i ].pointerId ];
                            _moveCurr.copy( getMouseOnCircle( position.x, position.y ) );
                            _movePrev.copy( _moveCurr );
                            break;
 
                        }
 
                    }
 
                    break;
 
            }
 
            scope.dispatchEvent( _endEvent );
 
        }
 
        function contextmenu( event ) {
 
            if ( scope.enabled === false ) return;
 
            event.preventDefault();
 
        }
 
        function addPointer( event ) {
 
            _pointers.push( event );
 
        }
 
        function removePointer( event ) {
 
            delete _pointerPositions[ event.pointerId ];
 
            for ( let i = 0; i < _pointers.length; i ++ ) {
 
                if ( _pointers[ i ].pointerId == event.pointerId ) {
 
                    _pointers.splice( i, 1 );
                    return;
 
                }
 
            }
 
        }
 
        function trackPointer( event ) {
 
            let position = _pointerPositions[ event.pointerId ];
 
            if ( position === undefined ) {
 
                position = new Vector2();
                _pointerPositions[ event.pointerId ] = position;
 
            }
 
            position.set( event.pageX, event.pageY );
 
        }
 
        function getSecondPointerPosition( event ) {
 
            const pointer = ( event.pointerId === _pointers[ 0 ].pointerId ) ? _pointers[ 1 ] : _pointers[ 0 ];
 
            return _pointerPositions[ pointer.pointerId ];
 
        }
 
        this.dispose = function () {
 
            scope.domElement.removeEventListener( 'contextmenu', contextmenu );
 
            scope.domElement.removeEventListener( 'pointerdown', onPointerDown );
            scope.domElement.removeEventListener( 'pointercancel', onPointerCancel );
            scope.domElement.removeEventListener( 'wheel', onMouseWheel );
 
            scope.domElement.removeEventListener( 'pointermove', onPointerMove );
            scope.domElement.removeEventListener( 'pointerup', onPointerUp );
 
            window.removeEventListener( 'keydown', keydown );
            window.removeEventListener( 'keyup', keyup );
 
        };
 
        this.domElement.addEventListener( 'contextmenu', contextmenu );
 
        this.domElement.addEventListener( 'pointerdown', onPointerDown );
        this.domElement.addEventListener( 'pointercancel', onPointerCancel );
        this.domElement.addEventListener( 'wheel', onMouseWheel, { passive: false } );
 
        window.addEventListener( 'keydown', keydown );
        window.addEventListener( 'keyup', keyup );
 
        this.handleResize();
 
        // force an update at start
        this.update();
 
    }
 
}
 
export { TrackballControls };

CC BY-SA 114514.810