Firstly, thanks a lot for the fast reply.
So if I understood correctly, the logic is that one square equals to 40. This fits with the example you mentioned with the coordinate of 180,59,1 (I suppose you meant the bottom part of Y-axis with arousal=2 being 59).
However, I am still confused since this logic does not fit with another example coordinates I checked from my data.
For example, the coordinate 216,227,1 is on my data valence = 4 and arousal = 2