ok, got it!
when the model is changed you have to call the
WCartesianChart::addSeries
method again.
thanx,
johannes.
Am Dienstag, den 09.08.2011, 17:48 +0200 schrieb jhig:
> hello,
>
> i'm trying to repopulate a WStandardItemModel so the WCartesianChart
> which holds the model redraws the data immediately:
>
> <snip>
>
> model->clear();
> model->insertColumns(0,7);
> model->setHeaderData(0, boost::any(WString("Header1", UTF8)));
> ...
> model->setHeaderData(6, boost::any(WString("Header7", UTF8)));
>
> for (size_t i = 0; i < result.num_rows(); i++){
> r = model->rowCount();
> model->insertRow(r);
> model->setData(r, 0, data[i][0]);
> ...
> model->setData(r, 0, data[i][6]);
> }
>
> <snip>
>
> the first time i call this method everything works fine.
> when i call this method and catch the data again from the database with
> different rowsize a clean chart is shown with the right axis and grids
> in the correct size but no data lines and no legend.
>
> what went wrong?
>
> isn't it enough to clear and refill the model? do i have to call another
> method like 'refresh' or similar?
>
>
> thanx,
> johannes.
>
>
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