Anybody working on a Smith chart
lazarus / 55-TAChart

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stephanweber · 2015-07-02 07:39

Hi,

if anybody is interested in programming a Smith chart (used for
display of complex numbers, like impedances), I can hand-over my full
well-tested Delphi pascal source code. It is quite beautiful, but not
yet object-oriented. Would be nice of course to merge it into the
Tchart.

Bye Stephan

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wp · 2015-07-02 09:05

No, I am not working on Smith charts, but why don't you post your
code?

In principle, I do not see a reason why it should not be possible to
add this to TAChart. The main obstacle seems to be that TAChart has
perpendicular axes, but you can hide them and draw all the circles and
labels in the chart's events - see http://forum.lazarus.freepascal.org
/index.php/topic,16977.msg93141.html#msg93141 or http://forum.lazarus.
freepascal.org/index.php/topic,27248.msg168240.html#msg168240.

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trayres · 2015-09-26 18:12

I just started looking for plotting a Smith chart, because I'm trying
to update PUFF to be cross platform and update its graphics.

It would be helpful here!

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stephanweber · 2023-08-29 12:04

Hi, late update:

I can send the full source code, but it is Delphi 7.0 and not object-
oriented. Send me a message or leave a comment in case of interest.

Bye Stephan

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MarkMLl · 2023-08-29 12:56

Irrespective of how it's written, I think it would be a useful thing
to have available.

My own opinion is that "OO" is over-used and a convenient fallback for
anybody who can't think of a more appropriate buzzword. OO techniques
can be very useful if there might need to be more than one of
something (i.e. two complex objects underlying two different GUI
forms, or objects being accumulated and passed around as parameters),
but it's (still) possible to have valid and useful Pascal without
using it.

MarkMLl