Re: Missing data points when plotting with Qt

[Dmitri A. Sergatskov]

On Tue, Aug 15, 2017 at 9:31 AM, <address@hidden> wrote:

Hi everyone,

I just plotted about 50'000 data points using the Qt graphics toolkit and recognised that many data points are left out. I think the plot backend reduces the number of points due to performance reasons. However, if I change the graphics toolkit to gnuplot the result looks more like what I expect, i.e. much more points are plotted. On the other hand, if I do plot(x, y, '.') the result generated by Qt also looks fine. Is there a way to adjust the number of plotted points for the Qt toolkit when I do plot(x,y)?

Octave version is 4.2.1.

​Since you did not provide an example that demonstrate this problem, we do not believe you

just assume you are making it up.​

​The Qt backend does not any such things. What you probably see is an effect of the display

antialiasing. 

​

​Dmitri.

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