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#6 Programmable Transition Times
The transition time is currently hard-coded to be 1/4 of a cycle. This edge rate is too slow for my tastes, so I created a new command line option -t|--transition that lets you specify the transition time as a percentage of the cycle time. It defaults to the old behavior of 0.25.
This is very nice because now it's possible to create ideal clocks (-t 0). The problem however is that the command will apply to all signals - not just to a clock.
I think that it will be best to have this not as an option of the drawtiming command but instead to have it as an option for the input file. This will allow for ideal clocks and non-ideal (real) signals.