01
Footprint is a physical constraint
The base contact area matters because the piece needs real room. It is a practical measurement question before it is an aesthetic one.
02
Presence is a visual effect
A narrow base can support branches that occupy a broad view. A wide, low base can use more surface while still appearing quiet. That is why presence cannot be inferred from footprint alone.
03
Compare both before placement
Use footprint to confirm that the object has room. Use presence to decide whether the form feels appropriately dominant, balanced or deliberately understated in the composition.
