[Kst] slowness due to QPainterPath::arcTo

[Jean-Dominique Barnichon]

Dear Barth,

I produced a very small example that produces the message (using 
Kst-2.0.x-2015.01.11-06.04, under windows 7)
Here it is:

Time;Var1;Var2;Var3;Var4
1.89;0.109125;0.1717501;0.1248751;-1.5
1.9;;;;-1.5

After loading these very few data (using ";" as data delimitor and "." 
as decimal separator), if you plot in the same graph Var1, Var2 & Var3 
as a function of time, then the message appears.
The problem comes from the 3 data that are empty on the second line, 
that is: ";;;;"

Of course one could argue that the data files should be "clean" (i.e. 
without 4 successive ";") , but we do not always have the control on 
theses files, they come as they are.

I am not aware where I should open a bug report, please let me know so 
that I can do it.
Thanks
JD

Le 23/02/2015 17:24, C. Barth Netterfield a écrit :
> Sounds like a kst bug... We shouldn't be sending nans to qt.
>
> Can you open a bug report with a example (small) data file that 
> triggers the messages?
>
> Thanks!
>
>
> On February 23, 2015 10:46:01 AM EST, Jean-Dominique Barnichon 
> <jdbarnichon at gmail.com> wrote:
>
>     Dear all,
>
>     I'm a new user of the kst software, I've now spent some days using it.
>     kst is really nice and impressive, but I'm facing the following
>     problem :
>      Depending on the data files plotted, I can end up with a slowness
>     of kst,
>      with the following message printed in the command window:
>         QPainterPath::arcTo: Adding arc where a parameter is NaN,
>     results are undefined
>
>     As far I understand this message is related to Qt, but printing
>     this message is what makes kst so slow in my case.
>     Does anybody know if and how to turn off this message printing?
>     Or anothzer way to solve this issue?
>
>     Thanks in advance
>     JD
>
>     ------------------------------------------------------------------------
>
>     Kst mailing list
>     Kst at kde.org
>     https://mail.kde.org/mailman/listinfo/kst
>
>
> -- 
> C. Barth Netterfield
> 416-845-0946 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/kst/attachments/20150306/ff085927/attachment.html>