Virtuosity: Can I Graphically Edit Width Spacing Patterns?

You know the old saying, a picture is worth a thousand words. Well, this could hold true when you are editing designs in Virtuoso as well. Visual edits can sometimes be more convenient to layout designers than text-based edits.

Keeping this in mind, we have enhanced the editing modes available for width spacing patterns (WSPs). In addition to the text-based editing option, you can now use the Use Pattern Viewer (Period and Track table read-only) option in the Options tab of the WSP Manager. This feature lets you edit WSPs in preview mode.

This graphical editing feature brings with it the advantage that most WYSIWYG interfaces bring along. You can edit the tracks in preview mode and the Tracks table is updated based on the visual edits.

Another advantage of the preview mode editing is that it lets you adjust the position of one track without affecting the placement of other tracks. This is different from the text-based editing mode in the Tracks table where all tracks get pushed down with the same parameters and the effective position of the tracks is adjusted.

In preview mode, you can also place vias and instances to derive tracks from shapes within the via or instance on the current WSP layer.

Related Resources

• Virtuoso Width Spacing Patterns User Guide

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Komal Johar