On 03/10/2019 06:26 PM, Marcus Müller wrote:
Hi Wayne, Hi Joe,
you're right – we've been urging people to switch away from WX since at
least 2014, and now we're finally removing it; with a bit of a heavy
heart, to be honest: Without feature equality, removing an alternative
feels bad, but we simply couldn't maintain the WX code anymore, and had
to find the resources to maintain QT stuff first.
So, no, we don't have that specific visualization in Qt, sorry. Joe,
this means we've long stopped supporting your widget – it works on most
machines, on others it doesn't, and we can't really help you in the
latter case.
Now, would one get started with developing a strip chart for Qt? Either
one cheats a bit and just implements something that hands n_points
sized chunks of data to the Qt GUI time sink, which always are
basically the last chunk, with old samples "shifted out" and new
samples "shifted in", or one would actually go and do a deep C++/Qt
dive and write a proper stripchart widget.
Best regards,
Marcus
I use the Qt Vector sink for strip-charts.
All the strip-chartiness is handled in helper code, and the Vector just
shows vectors at strip-chartly low rates.
My spectro_radiometer app does this.
Basically, feed a Qt Vector sink from an vector-add-const block which is
being feed a stream of zeros. On a regular basis, via the magic
of function probes, update the "constant" that is added. That vector
constant is the strip-chart contents. The Vector sink doesn't even
know that it's acting as a stripchart function. Easy-peasy, and
nothing special required in Qt land other than what's already there.
I implemented the strip-chart functionality in the Wx widgets all those
years ago. It was a bit of a hack then, and I'm kinda happy to see
the Wx widgets going away. They had portability issues, and often
also had horrendous performance issues.
On Sun, 2019-03-10 at 16:12 -0600, Joe Martin wrote:
Hi Wayne,
I am using the strip-chart option of the WX GUI Scope Sink block in
GRC to perform drift scans in my radio astronomy project. Works like
a champ!
Select “Stripchart” in the Trigger option.
Regards,
Joe
On Mar 10, 2019, at 3:24 PM, Wayne Hilliard <[email protected]>
wrote:
Hello,
Question. Has there been any movement on adding a strip chart
option to this gui?
I know WX_gui usage is discouraged and i have a radio astronomy app
I've been working on that uses QT_Gui.
I've looked around some on github and don't have a clue on where I
would start to try something on my own.
Any help would be appreciated .
Thanks in advance!!
Wayne Hilliard
_______________________________________________
Discuss-gnuradio mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
_______________________________________________
Discuss-gnuradio mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
_______________________________________________
Discuss-gnuradio mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
_______________________________________________
Discuss-gnuradio mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
