Hey,
The errors ring a bell, but I don't recall the cause.
I don't think we have tested the implementation against GraphicsMagick 1.4,
the one installed on my (recent) Ubuntu system is 1.3.12. Perhaps you can
downgrade your graphicsmagick distribution and try again, meanwhile we will
try with Graphicsmagick 1.4 and see if we can reproduce the problem.
Regards,
koen
2012/12/20 garnier <garn...@lal.in2p3.fr>
> Hi,
>
> I want to save some WCartesianChart as images but what I get as png file
> is a chart but a black plot zone…(WCartesianChart rendering is fine)
> I have wt-3.2.3, last haru-master from git and graphicsmagick-dev
> 1.4-0.020121013
> I get some strange things when rendering in WRasterImage in output :
> =====
> attribute not recognized: i
> attribute not recognized: n
> attribute not recognized: f
> attribute not recognized: e
> attribute not recognized: e
> attribute not recognized: e
> attribute not recognized: e
> =====
>
> My source code is the following :
>
> =================
>
> int nbpts = xcor.size();
> WStandardItemModel *model = new WStandardItemModel(nbpts, 2,
> parentContainer);
> for (int i = 0; i < nbpts; ++i) {
> model->setData(i, 0, xcor.at(i));
> model->setData(i, 1, ycor.at(i));
> }
> WCartesianChart *chart = new WCartesianChart(parentContainer);
> chart->initLayout();
>
> chart->setModel(model); // set the model
> chart->setXSeriesColumn(0); // set the column that holds the X data
> chart->setLegendEnabled(true); // enable the legend
>
> chart->setType(ScatterPlot); // set type to ScatterPlot
>
> chart->axis(XAxis).setLocation(ZeroValue);
> chart->axis(YAxis).setLocation(ZeroValue);
>
> // Add the curves
> WDataSeries s(1, CurveSeries, Y1Axis);
> chart->addSeries(s);
>
> chart->resize(300, 300); // WPaintedWidget must be given explicit size
>
> Wt::WRasterImage pngImage("png", 600, 600);
> Wt::WPainter p(&pngImage);
>
> chart->paint(p);
> std::string name;
> name = WORKINGAREA+"/chart-"+sessionId ()+".png";
> std::ofstream f(name.c_str(), std::ios::out |std::ios::trunc |
> std::ios::binary);
> pngImage.write(f);
> =================
>
> Any ideas ?
>
> Cheers,
> Laurent
>
>
>
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