This APP uses ARKit to locate devices and show a drawing board in real world .
The device can be moved as a brush to drawing pixels .

Functions:
- Customize brush on a 9x9 canvas
- A regular polygon used for drawing lines
- Undo and redo
- Fill color
- Choose different colors
- Add or delete layers
- Choose a color from the layer
- Transfer the selected area on the layer
- Set the width and height of the canvas respectively (1-256)
- Exporting all the pixels in the canvas or screenshots