Updating Layout Constraints

To update constraints from schematic to layout, do one of the following:

• From the layout window menu bar, choose Connectivity – Update – Layout Constraints.
• In the Constraint Manager toolbar, click the Update Layout Constraints button.
  
  
  Constraints in the schematic are transferred to the top-level layout view. Constraints that have been created in the schematic but not yet saved are also transferred.

Any instances that have a parameter mismatch between the schematic and the layout views, will not have their parameters updated. To update the parameters of such instances, you may need to run Update Layout Parameters, Update Schematic Parameters, or Update Components And Nets with the parameter update option selected.

Layout Constraints Updates after Folding

If you fold instances in the layout view using one of the methods listed below, you must use the Update Layout Constraints command to ensure that all the transferred constraints have the correct folded members.

• Generate Selected From Source
• Generate Folded Devices
• Placement Planning incremental layout generation

The command does not update any constraints you created in the layout. These constraints might have incorrect folded members.

Related Topics

Constraint Manager Assistant

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