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The built-in oacPreferredRoutingDirection layer constraint is specific to the default constraint group of an oaAreaBoundary. The preferred routing direction outside the oaAreaBoundary is specified in the technology database. The preferred routing direction can be one of the orthogonal or one of the diagonal routing directions. If this constraint is set to one of the diagonal routing directions, the oacDiagonalShapesAllowed constraint must be set to true.
| Constraint type: | oaLayerConstraint |
| Value types: | oaIntValue |
| Database types: | oaDesign, oaTech |
| Object types: | oaAreaBoundary, oaAppObject |
The following value types are supported by this constraint:
oacPreferredRoutingDirection is an oaIntValue that is represented by oaPrefRoutingDirEnum.
Units: Enum
This value is represented by an oaPrefRoutingDir enumeration:
| Value | Name |
|---|---|
| oacNotApplicablePrefRoutingDir | Preferred direction cannot be determined |
| oacNonePrefRoutingDir | All allowed directions. |
| oacHorzPrefRoutingDir | Horizontal |
| oacVertPrefRoutingDir | Vertical |
| oacLeftDiagPrefRoutingDir | Left Diagonal |
| oacRightDiagPrefRoutingDir | Right Diagonal |
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