[vtkusers] Smoothing 2D plot in ChartXY

[Marcus D. Hanwell]

On Thu, Jun 23, 2011 at 10:46 AM, Yuri Timenkov <yuri at timenkov.ru> wrote:
> Hello,
> I have a raw set of 2D data from vtkTable using new vtkChartXY API (function
> in time). But it has a lot of peaks and falls and too much details (see
> example in attachment). I want to make it look niceer, so I see 3 options:
>
> Draw every Nth point.
> Reduce number of points my averaging adjacent values.
> Draw kind of envelope.
>
> Does VTK provide any means to do it automatically or I have to prepare data
> somehow before plotting?

I am not aware of any filters that do that, but this kind of thing
could be made into a filter. It would be good to get a few of the
commonly used algorithms encapsulated into some filters for treating
chart data, and the pipeline would be the right place to do it.

Marcus