[fdo-internals] Re: Need to create a calculation using FDO API

[Jackie Ng]

Add a ComputedIdentifier as part of your ISelect command's PropertyNames
collection

The ComputedIdentifier should have Area2D(SHAPE) as your expression and an
alias of your choice.

When executed, the Area2D(SHAPE) value an be accessed by the alias name in
the feature reader.

- Jackie

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