index.html

		if(earth_rotates){
			earth.rotation.y += 0.001*earth_rotation_speed;
		}
	}
	
	//-----------------------------------------------------------------------------------------------------------------------
	//			ARROWS UPDATE
	//-----------------------------------------------------------------------------------------------------------------------
	var new_direction;
	if(show_velocity){
		new_direction = new THREE.Vector3().subVectors(value_velocity, origin).normalize();
		arrow_vel.setDirection(new_direction);
		arrow_vel.setLength(value_velocity.length()*arrow_max_length/limit_velocity, arrow_head_length, arrow_head_width);
		//arrow_vel.setColor(color_velocity);
	}
	
	if(show_acceleration){
		new_direction = new THREE.Vector3().subVectors(value_acceleration, origin).normalize();
		arrow_accel.setDirection(new_direction);
		arrow_accel.setLength(value_acceleration.length()*arrow_max_length/limit_acceleration, arrow_head_length, arrow_head_width);
		//arrow_accel.setColor(color_acceleration);
	}
	
	if(show_momentum){			
		new_direction = new THREE.Vector3().subVectors(value_momentum, origin).normalize();
		arrow_momentum.setDirection(new_direction);
		//arrow_momentum.setColor(color_momentum);
	}
	
	if(show_target_a){
		new_direction = new THREE.Vector3().subVectors(value_target_a, origin).normalize();
		target_a.setDirection(new_direction);
		//target_a.setColor(color_target_a);
	}
	
	if(show_vector_a){
		new_direction = new THREE.Vector3().subVectors(value_vector_a, origin).normalize();
		vector_a.setDirection(new_direction);
		vector_a.setLength(value_vector_a.length()*arrow_max_length/limit_vector_a, arrow_head_length, arrow_head_width);
		//vector_a.setColor(color_vector_a);
	}
	
	if(show_direction_a){
		new_direction = new THREE.Vector3().subVectors(value_direction_a, origin).normalize();
		direction_a.setDirection(new_direction);
		//direction_a.setColor(color_direction_a);
	}

}

function render() 
{
	renderer.render( scene, camera );
}

</script>

</body>
</html>