[vtkusers] XYPlot for multiblock datasets

Gerrick Bivins gbivins at objectreservoir.com
Wed Aug 20 12:59:25 EDT 2008


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
>> 
>> 
>> --
>> View this message in context:
>> http://www.nabble.com/XYPlot-for-multiblock-datasets-tp19070589p19070589.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
>> 
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