Object Spatial Database

• Uses Methods and Object Lifecycle
• Choose Spaghetti or Structured for each class.
• Snapping tolerances set between pairs of classes.
• Topology maintained 'on-the-fly'

Area B

Area A

Face 1

Face 3

Face 2

L2

L3

L4

L2

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L1

L3

L4

L5

N2

L1

N1

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More serious advantages for OO GIS..

09/98