[vtkusers] XYPlot for multiblock datasets

[Gerrick Bivins]

Thanks for the hint Dave! Things are working for me now!
Gerrick

Gerrick Bivins wrote:
> 
> Hi Dave,
> Are you referring to the array returned by:
> vtkProbeFilter::GetValidPoints()
> 
> If so, it sounds like I'd need to add another step in my pipeline to
> create
> this composited line from the valid probed points. Am I on the right track
> here? 
> Gerrick
> 
> 
> On 8/20/08 11:46 AM, "David E DeMarle" <dave.demarle at kitware.com> wrote:
> 
>> Howdy,
>> 
>> vtkProbeFilter maintains an array that describes whether each sample
>> is valid or not. ParaView's charting classes use that array to decide
>> what line segments to connect.
>> 
>> cheers,
>> Dave
>> 
>> On Wed, Aug 20, 2008 at 11:44 AM, Gerrick Bivins
>> <gbivins at objectreservoir.com> wrote:
>>> 
>>> Hi All,
>>> In my application, I have the ability to cut through a multiblock
>>> dataset
>>> and generate a plot from the slice using the spline widget  projected
>>> onto
>>> the slice and setting it's polydata to a probe filter. However, in the
>>> xyplot, the line is discontinuous wherever the probe crosses the
>>> boundaries
>>> of the each multiblock. So instead of smooth lines on the chart, I get a
>>> chart with segments that almost looks like a bar chart.
>>> 
>>> Probe within same block:
>>> http://www.nabble.com/file/p19070589/probewithinblock.jpeg
>>> 
>>> Probe through multiple blocks:
>>> http://www.nabble.com/file/p19070589/probethroughmultipleblocks.jpeg
>>> 
>>> I know it's possible to plot a smooth line, because I don't see these
>>> effects when probing the dataset within Paraview, so if anyone has any
>>> advice on this, it would be greatly appreciated!
>>> Gerrick
>>> 
>>> 
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