GPS Based AR: Get x,y Coordinate for Lat and Long

Hi, I am trying to find the x and y coordinate for given longitude and latitude. I want to display cubes in my application using the x and y coordinates. I used the following formula:

public calcPosFromLatLonRad ( lat: number, lon: number, radius: number ) {
		var phi   = (90 -  lat) * (Math.PI / 180);
		var theta = (lon + 180) * (Math.PI / 180);
		const x = -(radius * Math.sin(phi) * Math.cos(theta));
		const z = (radius * Math.sin(phi) * Math.sin(theta));
		const y = (radius * Math.cos(phi));
		console.log('x Koordinate: ' + x + ' y Koordinate: ' + y + 'z Koordinate: ' + z);
		return [x, y, z];
	}

Then I tried:

const x1 = this.calcPosFromLatLonRad(52.387980, 9.719260, 100);
		const pos1x = x1[0];
		const pos1y = x1[1];
		const pos1z = x1[2];

cube2.position.set(pos1x, pos1y, pos1z);
camera.position.z = 5;
		scene.add( cube2);
const animate  = () => {
	requestAnimationFrame( animate );
	controls.update();
	renderer.render( scene, camera );
};

But I don’t see anything on my display. What I am doing wrong?

/cc