LabPlot+Cantor for GSOC 2014?

Shubham Pansari pansarishubham2395 at
Tue Feb 18 19:20:12 UTC 2014

Hi Alexander,
There is one problem with LabPlot that whenever I try to plot something it
closes unexpectedly. How should I handle that and secondly I have
completely understand the workflow. Now one thing which I would I like to
ask that according to which package I should develop the extract data
function, like g3data using gtk or like digitizer.

Thanks and Regards,

On Sun, Feb 16, 2014 at 3:47 AM, Alexander Semke <Alexander.Semke at>wrote:

> Hi Shubham,
> > I am going through LabPlot code, but having difficulty understanding it.
> > Any ideas on how should I start and from where I should start?
> I think, at the beginning you only have to know kdefrontend/MainWin.cpp and
> kdefrontend/LabPlot2.rc in order to extend the main menu and to provide a
> new
> entry for starting the new tool. As I already said in my previous email,
> this
> digitizer tool is more or less self-consistent and independent piece of
> code
> and you can develop it in the beginning without the deeper understanding of
> labplot's code basis. Just create a new widget/dialog with the possibility
> to
> load an image or pdf/ps/eps-file, to define the coordinate system on top of
> the loaded image and to collect the pairs of x- and y-coordinates by
> clicking
> the points. If this is done, consider extending this widget with additional
> functionality that would make this tool more user-friendly (like zooming in
> into a small area under the mouse cursor etc.). When this is done, you can
> start to learn the interface of the labplots's Spreadsheet and Column in
> order
> to transfer the collected data.
> I'll try to write some documentation on the code in the next weeks.
> Regards
> Alexander
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