Why the rosettes image may not be a map at all

[MarcoP]

Marco and ...

On the left middle rosette, You are not allowed to view links. Register or Login to view. and  f78r displayed one and the same tip design tent.
The average top rosette has another tip design.
On the lower middle rosette the tip do not need a  since tent stretched at an angle and forms a a ramp (plums).

Thank you Wladimir. This is something definitely worth considering when discussing the diagram as a whole: there appear to be a number of tents, canopies, baldaquins:

• the starred polygonal canopy supported by the six pillars in the central rosette
  
• the rectangular baldaquins in the lower-right rosette
  
• as you and You are not allowed to view links. Register or Login to view. (same post I linked above) pointed out, there are elements that suggest that also other rosettes represent conical tents with ropes on the borders and a pole at the center. 
  

Whatever the meaning of the diagram, the presence of all these tents seems to be a meaningful tract of it.
Here is another image from Ellie's post: