Chaco big dataset issue

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Chaco big dataset issue

Eraldo Pomponi
Dear all,

I encountered a serious problem plotting a big data set (>2e6 samples) using
Chaco.
You can reproduce the figure with the attached code and data
(I just modified the bigdata.py Chaco example to load my own data)
It is properly handled if you try to plot it within ipython (matplotlib).
The data format is the same for x and y 'float32'.
Any help is more then welcome.

Cheers,
Eraldo

P.S.
Sorry for the large attachment.

P.S.2
I tried different "ways" to create the Chaco plot (Plot,
ArrayPlotData+ToolbarPlot, OverlayPlotContainer+create_line_plot) but the
result
is the same (as it should be !!! even if it is not the expected one )

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Re: Chaco big dataset issue

Peter Wang
Eraldo,

There is no attachment, and it's probably best not to send out a very
large dataset on the mailing list.  It would be best if you can make
it available on your personal website and provide an HTTP link.

Alternatively, you can just cut-n-paste a stack trace (if there was an
exception) or attach a screenshot and indicate what looks "wrong".

Thanks,
Peter

On Fri, Jul 15, 2011 at 9:59 AM, Eraldo Pomponi
<[hidden email]> wrote:

> Dear all,
>
> I encountered a serious problem plotting a big data set (>2e6 samples) using
> Chaco.
> You can reproduce the figure with the attached code and data
> (I just modified the bigdata.py Chaco example to load my own data)
> It is properly handled if you try to plot it within ipython (matplotlib).
> The data format is the same for x and y 'float32'.
> Any help is more then welcome.
>
> Cheers,
> Eraldo
>
> P.S.
> Sorry for the large attachment.
>
> P.S.2
> I tried different "ways" to create the Chaco plot (Plot,
> ArrayPlotData+ToolbarPlot, OverlayPlotContainer+create_line_plot) but the
> result
> is the same (as it should be !!! even if it is not the expected one )
>
> _______________________________________________
> Enthought-Dev mailing list
> [hidden email]
> https://mail.enthought.com/mailman/listinfo/enthought-dev
>
>
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Re: Chaco big dataset issue

Eraldo Pomponi
Sorry Peter,

You are completely right but I had no place where to put it. I googled a
little bit and I found a free service.
The link is  http://www.4shared.com/file/L3MS4LWt/Chaco_issuetar.html ... it
is not the best but hopefully enough for now.

Cheers,
Eraldo



On Fri, Jul 15, 2011 at 5:13 PM, Peter Wang <[hidden email]> wrote:

> Eraldo,
>
> There is no attachment, and it's probably best not to send out a very
> large dataset on the mailing list.  It would be best if you can make
> it available on your personal website and provide an HTTP link.
>
> Alternatively, you can just cut-n-paste a stack trace (if there was an
> exception) or attach a screenshot and indicate what looks "wrong".
>
> Thanks,
> Peter
>
> On Fri, Jul 15, 2011 at 9:59 AM, Eraldo Pomponi
> <[hidden email]> wrote:
> > Dear all,
> >
> > I encountered a serious problem plotting a big data set (>2e6 samples)
> using
> > Chaco.
> > You can reproduce the figure with the attached code and data
> > (I just modified the bigdata.py Chaco example to load my own data)
> > It is properly handled if you try to plot it within ipython (matplotlib).
> > The data format is the same for x and y 'float32'.
> > Any help is more then welcome.
> >
> > Cheers,
> > Eraldo
> >
> > P.S.
> > Sorry for the large attachment.
> >
> > P.S.2
> > I tried different "ways" to create the Chaco plot (Plot,
> > ArrayPlotData+ToolbarPlot, OverlayPlotContainer+create_line_plot) but the
> > result
> > is the same (as it should be !!! even if it is not the expected one )
> >
> > _______________________________________________
> > Enthought-Dev mailing list
> > [hidden email]
> > https://mail.enthought.com/mailman/listinfo/enthought-dev
> >
> >
> _______________________________________________
> Enthought-Dev mailing list
> [hidden email]
> https://mail.enthought.com/mailman/listinfo/enthought-dev
>
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