get_layerpair_constraint
get_layerpair_constraint
-constraint s_constraintName
-layer1 s_layerName
-layer2 s_layerName
[-purpose1 s_purposeName]
[-purpose2 s_purposeName]
[-group s_groupName]
[-hardness {hard | soft | preferred | default}]
[-model {OXIDE1 | OXIDE2 | OXIDE3 | OXIDE4}]
[-parameter s_parameterName]
[{-row_value f_value | -row_index i_index}]
[{-col_value f_value | -col_index i_index}]
[-symmetric [true | false]]
Description
Returns the value of the named constraint for the two given layers or layer purpose pairs.
Arguments
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-col_index i_index
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Specifies the column index to use for looking up the constraint value in a 2-D table. Must be in the range of 0 to number of columns-1.
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-col_value f_value
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Specifies the column key value to use for looking up the constraint in a 2-D table. Must be a dimension value, typically a length.
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-constraint s_constraintName
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Specifies the name of the constraint. If you include this argument without a constraint name, the list of valid layer pair constraint names is output.
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-group s_groupName
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Specifies the name of the constraint group, or rule spec. Defaults to the foundry rule spec for OA constraints, and the design rule spec for all other constraints.
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-hardness {hard | soft | preferred | default}
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Returns the constraint value for the given setting. By default, the preferred value is returned.
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default
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Returns the first value found: hard or soft.
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hard
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Returns the hard value.
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preferred
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Returns the first value found: soft or hard.
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soft
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Returns the soft value.
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-layer1 s_layerName
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Specifies the name of the first layer.
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-layer2 s_layerName
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Specifies the name of the second layer.
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-model {OXIDE1 | OXIDE2 | OXIDE3 | OXIDE4}
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Returns the constraint value for the given antenna model. This argument is only used with antenna category constraints.
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-parameter s_parameterName
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Specifies that the value of the named parameter be output, instead of the constraint value. By default, the constraint value is returned.
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-purpose1 s_purposeName
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With -layer1, specifies the layer purpose pair for the first layer.
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-purpose2 s_purposeName
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With -layer2, specifies the layer purpose pair for the second layer.
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-row_index i_index
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Specifies the row index for looking up the constraint value in a 1-D or 2-D table. Must be in the range of 0 to number of rows-1.
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-row_value f_value
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Specifies the row selection value for looking up the constraint value in a 1-D or 2-D table. Must be a dimension value, typically a width.
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-symmetric [true | false]
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Indicates whether the constraint is symmetric with respect to the layer order. Defaults to true.
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Value Returned
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value
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Is the value of the specified parameter if -parameter is given, otherwise, is the constraint value.
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-1
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The constraint or parameter does not exist or is not set.
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Examples
Outputs the list of valid layer pair constraint names, provided a design is already loaded and Metal1 and Metal2 are valid layers.
get_layerpair_constraint -layer1 Metal1 -layer2 Metal2 -constraint foo
Related Topics
set_layerpair_constraint
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