Robot View with pointer position control

RobotView2.swift

import SwiftUI
import SceneKit
import IndustrialKit

//...

struct RobotView: View
{
    //...
    
    var body: some View
    {
        VStack(spacing: 0)
        {
            ObjectSceneView(scene: robot_scene, on_init: { scene_view in prepare_scene() })
            .frame(width: 280, height: 280)
            .background
            {
                Rectangle()
                    .fill(.thinMaterial)
                    .shadow(radius: 4)
            }
            
            PositionControl(location: $arm.pointer_location, rotation: $arm.pointer_rotation, scale: $arm.space_scale)
                .frame(width: 320)
                .disabled(arm.performed)
        }
    }
    
    //...
}