geom_extent

geom_extent
{ {-lpp1 { s_layerlpp … } 
  [ -lpp1_levels { i_startLevel [i_endLevel] } ] 
  [ -set1 d_setObj ] 
  [ -lpp1_net_names { s_netName… } | -lpp1_net_set d_setObj ] } 
| -input1_scratch_layer i_scratchID } 
{ {-output_lpp s_lpp [ -output_net_name s_netName ] [ -output_set d_setObj ] } 
| -output_scratch_layer i_scratchID } 
[ -no_sync ] 
[ -region { f_xlo f_ylo f_xhi f_yhi } ] 
[ -route_topology { core_ring | block_ring | stripe | cell_row_strap } ]

Description

Generates new shapes that extend to the bounds of two or more intersecting shapes on a scratch layer, or on one or more layer purposes, optionally limited to specific levels for nets in a set or a list, or shapes in a set. The generated shapes are added to a scratch layer, or to a layer purpose and, optionally, a specific net. You can operate on a specific region or the entire design.

The GUI equivalent for this command is Create—Derived Layers.

Arguments

`-input1_scratch_layer` i_scratchID
	Uses a scratch layer from a previous Boolean operation for `lpp1` shapes.
`-lpp1` {s_layerlpp …}	Specifies the first LPPs. For details on the LPP notation, refer to Specifying Input Layer Purposes.
`-lpp1_levels` {i_startLevel [i_endLevel]}
	Limits `lpp1` shapes to those on the specified levels. If start and end levels are given, all levels in between are included. The top level is `0`. Default: all levels
`-lpp1_net_names` {s_netName…}
	Limits `lpp1` shapes to the named nets.
`-lpp1_net_set` d_setObj	Limits `lpp1` shapes to the nets in the set.
`-no_sync`	By default, the OpenAccess database is immediately updated with the results of this operation. If this argument is given, the results will not be saved until the database is saved (write_db).
`-output_lpp` s_lpp	Specifies the output LPP for the generated shapes.
`-output_net_name` s_netName
	Adds shapes to the named net. When this argument is given, the `-no_sync` argument is ignored. Shapes that are created by this command will be saved with the named net when the database is saved.
`-output_scratch_layer` i_scratchID
	Adds generated shapes to a scratch layer identified by the positive integer. This scratch layer can be used as an input layer in subsequent Boolean operations using the `-input1_scratch_layer or -input2_scratch_layer` arguments for the current design. Scratch layers cannot be displayed but can be removed using geom_remove_scratch_layers.
`-output_set` d_setObj	Adds generated shapes to the given set.
`-region` {f_xlo f_ylo f_xhi f_yhi}
	Specifies the area of the operation given the lower-left coordinate and the upper-right coordinate.
`-route_topology` s_topologyName
	(Applies only if `-output_net_name` is given with the name of an existing power or ground net) Sets the `routeTopology` property for the output shapes as follows:
	`block_ring`	`BlockRingRouteTopology`
	`cell_row_strap`	`StandardCellWireRouteTopology`
	`core_ring`	`RingRouteTopology`
	`stripe`	`StripeRouteTopology` (this is the default)
`-set1` d_setObj	Limits `lpp1` shapes to shapes in the set.

Value Returned

i_count

Is the total number of shapes created.

Examples

The following example creates new shapes that extend to the bounds of two or more intersecting shapes on met1 layer purposes for the entire design and outputs the new shapes to scratch layer 1.

geom_extend -lpp1 met1 -output_scratch_layer 1

Virtuoso Space-based Router Command Reference
Product Version IC23.1, September 2023

geom_extent

Description

Arguments

Value Returned

Examples

Related Topics

Virtuoso Space-based Router Command ReferenceProduct Version IC23.1, September 2023

geom_extent

Description

Arguments

Value Returned

Examples

Related Topics

Virtuoso Space-based Router Command Reference
Product Version IC23.1, September 2023