Product Documentation
Virtuoso Layout Suite XL: Connectivity Driven Editing User Guide
Product Version IC23.1, November 2023

showDraglinesForDistantConns

layoutXL showDraglinesForDistantConns boolean { t | nil }

Description

Displays draglines for all the connections to the instance that is being manipulated. When switched off, draglines are shown only for the connections closest to the current instance.

This environment variable is honored by the Generate Selected From Source, Generate Clones, Move, and Stretch commands.

For more information on displaying draglines, see also colorDraglines and hideDraglinesForGlobalNets.

GUI Equivalent

Command:

Options – Connectivity (Display tab)

Field:

Initial Display – Draglines – Show distant connections

(Connectivity Form)

Examples

envGetVal("layoutXL" "showDraglinesForDistantConns")
envSetVal("layoutXL" "showDraglinesForDistantConns" 'boolean t)
envSetVal("layoutXL" "showDraglinesForDistantConns" 'boolean nil)

Additional Information

Displaying many draglines during interactive commands can impair the performance of Layout XL. To mitigate these effects, use the maxDragFig environment variable to limit the number of flightlines that can be added to a dragset.

To set maxDragFig interactively so that it takes effect in the current session, type the following in the CIW, where win is the window to which the limit applies.

win~>maxDragFig = 1000

To set a default value for maxDragFig, which will be used in all future Layout XL sessions, put the following line in your .cdsenv file.

envSetVal(“layout” “maxDragFig” ‘int 500)

Where, 500 is the default number of flightlines that can be added to a dragset.

Related Topics

List of Layout XL Environment Variables

Setting Environment Variables


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