[vtkusers] vtkChartXY How to remove a specific vtkPlot in it?

[Alexandre Boucher]

I normally use

pcChartXY->RemovePlotInstance(pcPlot)

However I had strange behavior when I try to add and remove plot in corner
0 (see here:
http://vtk.1045678.n5.nabble.com/vtkChartXY-Cannot-add-and-then-remove-vtkPlotBar-from-corner-0-VTK6-0-td5722329.html
)




On Fri, Aug 2, 2013 at 7:21 PM, Guan, Xuefei <xf.guan at gmail.com> wrote:

> Dear VTK users,
>
> I browsed the vtkChartXY function lists, the only available function to
> remove a line in it is by RemovePlot(vtkIdType)
>
> My question is how to get the index from an existing vtkPlot *,
>
> For example, I use the following snip and a for loop to draw a large set
> of lines
>
> vtkPlot* pcPlot = m_pcChartXY->AddPlot(vtkChart::LINE);
>  pcPlot->SetColor(r, g, b);
> pcPlot->SetWidth(1);
> pcPlot->SetInput(pcDataTable, i, j);
>  pcPlot->SetLabel("");
>
> Then I want to delete a specific line in the chart, how to do that using a
> given vtkPlot* pcPlot? Or if I want to use RemovePlot(vtkIdType) to delete
> a specific line, how to get the required index from a given vtkPlot*
> pcPlot?
>
> Is the line id is a linear integer starting from 0?
>
> Thanks for your help.
>
> Regards,
> xf.
>
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