geom_and

geom_and 
{{-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} 
{{-lpp2 {s_layerlpp …} 
  [ -lpp2_levels {i_startLevel [i_endLevel]} ] 
  [ -set2 d_setObj ] 
  [ -lpp2_net_names {s_netName…} | -lpp12_net_set d_setObj ]} 
| -input2_scratch_layer i_scratchID} 
{{-output_lpp s_lpp [ -output_net_name s_netName ][ -output_set d_setObj ]} 
| -output_scratch_layer i_scratchID} 
[ -no_sync ] 
[ -polygons ] 
[ -region {f_xlo f_ylo f_xhi f_yhi} ] 
[ -route_topology {core_ring | block_ring | stripe | cell_row_strap} ]

Description

Generates new shapes where shapes from one input group overlap shapes from another input group. Input groups can be a scratch layer, or 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.
`-input2_scratch_layer` i_scratchID
	Uses a scratch layer from a previous Boolean operation for `lpp2` 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.
`-lpp2` {s_layerlpp …}	Specifies the second LPPs. For details on the LPP notation, refer to Specifying Input Layer Purposes.
`-lpp2_levels` {i_startLevel [i_endLevel]}
	Limits `lpp2` 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
`-lpp2_net_names` {s_netName…}
	Limits `lpp2` shapes to the named nets.
`-lpp2_net_set` d_setObj
	Limits `lpp2` 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 the 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.
`-polygons`	Generates output shapes as polygons, rather than individual rectangles. By default, individual rectangles are generated.
`-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.
`-set2` d_setObj	Limits `lpp2` shapes to shapes in the set.

Value Returned

i_count

Is the total number of shapes created.

Specifying Input Layer Purposes

You can use the following notation to specify one or more layers and/or layer purposes (LPPs) for this command:

Notation	Description	Example
layer	Specifies all LPPs for the layer.	`met1` or "`met1"`
layer:purpose	Specifies a specific LPP.	`met1:wire:detail` `"met1:wire:detail"`
layer purpose	Specifies a specific LPP.	`met1 wire:detail "met1" "wire:detail"`

Examples

The following example generates new shapes on the met5:wire:detail layer purpose that are common to the met2 and met1 wire:detail layer purposes.

geom_and -lpp1 { met2:wire:detail } -lpp2 { met1:wire:detail } -region { 2486.75 2850.75 2635.22 2946.52 } -output_lpp { met5:wire:detail }

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

geom_and

Description

Arguments

Value Returned

Specifying Input Layer Purposes

Examples

Related Topics

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

geom_and

Description

Arguments

Value Returned

Specifying Input Layer Purposes

Examples

Related Topics

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