Hi Stanley
I'm still in the primary learning stage with Postgis.
I would appreciate you critiquing my thoughts.
With the two tables - entity and entity_relationship - the idea is to
establish a parent geometry (perhaps a point known to be within established
boundries) and establish the position of child entities ( in my case,
process graphics) in relationship to the parent.
Furthermore, you seem to indicate that any entity can be both a parent
and/or a child to another entity.
You also indicate that the placement of the child entity can be established
in relation to the relative geometric sizes of the entities.
Have I been somewhat correct so far?
Bob
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