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Illustrating 3D GIS topology issue of multiple Zs per X and Y
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3D GIS dilemma
Multi-Z’s per X, Y
(no violation of topology
as integrity constraint)
x (X,Y,Z2)
x (X,Y,Z2)
Natural Resources: Mineral leases by depths
A/E/C: Volumes with overhangs
Shallow rights
Deep rights
Operator A
Operator B
(X,Y,Z1) x
(salt domes in Natural Resources)
(X,Y,Z1) x