[vtkusers] Update the data in vtk xy chart

[Gishara Indeewarie]

Hi jothy,
I am doing the exact same way, but I don't get any output if I use
ClearPlots() .

On Fri, Mar 16, 2012 at 6:14 PM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:

> First ClearPlots()
>
> then use AddPlot() to add the new lines like
>
> vtkPlot *line = this->chart->AddPlot(vtkChart::LINE);
>  line->SetInput(table, 0, 1);
>
> table contains your new value.
>
> Then Render()
>
> Jothy
>
>
>
> On Fri, Mar 16, 2012 at 12:39 PM, Gishara Indeewarie <gish.777 at gmail.com>wrote:
>
>> Thanks a lot Jothy. But when I call  vtkChartXY::ClearPlots()  , I dont
>> get any output.
>> If I did not call it, I get a new window each time I update the data.
>> I am using vtk mfc renderer to render data.
>>
>>
>> On Fri, Mar 16, 2012 at 6:05 PM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:
>>
>>> call vtkChartXY::ClearPlots() then Render() after adding new data.
>>>
>>> Jothy
>>>
>>>
>>>
>>> On Fri, Mar 16, 2012 at 12:25 PM, Gishara Indeewarie <gish.777 at gmail.com
>>> > wrote:
>>>
>>>> Hi all,
>>>>
>>>> I am using vtk xy chart example (
>>>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Plotting/LinePlot) to plot a
>>>> graph.
>>>> I want to update the data inside the graph every time user presses a
>>>> button.
>>>> (I am using different data sets)
>>>> I followed the following thread, but with no luck.
>>>>
>>>> http://vtk.1045678.n5.nabble.com/How-to-get-output-of-vtkChartXY-on-existing-render-window-td5526899.html
>>>>  .
>>>> As soon as I start the interactor the window get crashed when closing.
>>>> Please suggest me how can I achieve this.
>>>> Thanks a lot.
>>>>
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>>>
>>>
>>> --
>>> Jothy
>>>
>>>
>>
>>
>> --
>> Gish
>>
>
>
>
> --
> Jothy
>
>


-- 
Gish
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