rectangularLargeViaArraysAllowed

Specifies whether rectangular via arrays are permitted within a larger via array or only the default square via arrays are allowed.

rectangularLargeViaArraysAllowed Quick Reference

Value Type

rectangularLargeViaArraysAllowed constraints have a BoolValue. By default, only square via arrays are allowed. When this constraint permits rectangular via arrays, both square and rectangular via arrays are enabled. As shown in the following figure, the via can be cut off at the end of a wire; this results in incomplete square via arrays, but is not a violation of this constraint.

Parameters

• cutClass (DualValue, custom) The constraint only applies to cut shapes whose width and height are equal to the values in the DualValue pair, specified in that order. parallelOverlap (BoolValue, optional) The constraint applies only when there is a parallel edge overlap > 0.

Examples

This example allows rectangular via arrays on the layer cut1; prohibits rectangular via arrays on the layer cut2.

set_layer_constraint -constraint rectangularLargeViaArraysAllowed \  -layer cut1 -BoolValue true
set_layer_constraint -constraint rectangularLargeViaArraysAllowed \  -layer cut2 -BoolValue false

LAYER cut1
  ARRAYSPACING LONGARRAY …

LAYER cut2
  ARRAYSPACING …

spacings(
         (largeRectViaArrayAllowed "cut1" t)
         (largeRectViaArrayAllowed "cut2" nil)
         )

Related Topics

Via Construction Constraints