# Uses of Interface com.threerings.stage.data.StageCodes (vilya 1.3 API)
Date: 2011-04-06

## Uses of Interface
com.threerings.stage.data.StageCodes

Packages that use StageCodes
com.threerings.stage.util

Uses of StageCodes in com.threerings.stage.util

Classes in com.threerings.stage.util that implement StageCodes
`class` `PlacementConstraints` Maintains extra information on objects in a scene and checks proposed placement operations for constraint violations.

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