## Procedural Rendering
* Approach A
    * We have 3 tiers of octagonal frames 
    * generate 2 tiers of templates per zoom level
    * generating the base physical layout concurrently with the topological structure
    * displayed physical layout is dependent on the zoom level
* Approach B
    * We have 2 tiers of square frames
    * generate 3 tiers of templates per zoom level
    * render 1 tier and partially render the parent and children tiers
    * each template's physical layout is generated independently of the zoom level

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