Geoff Swan wrote:
I've seen commercial tools that have some predefined grids like rectangular,
polar, smith but so far none have taken it to the next level of letting you
add custom ones or the custom readout.
Just in case you missed it - qucs has a number of plotting outputs
including a Smith chart. I don't recall how good it is in terms of the
interactivity with datapoints on the various graphs.
Having a built in smith chart is better than nothing but having a way
for the user to define his/her own types of gridlines and cursor
readouts is much better. Smith charts aren't the only ones you might
want.
-Dan
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