[Paraview] vtkTable Visualization

[Stephan Rogge]

Hi,

I decided to attach a pv state file to reproduce this issue. The left  
side visualizes the (multiblock) encapsulated vtkTable output of a  
ProgrammableSource with a SpreadSheet-, MatrixPlot- and  
ParallelCoordinatesView. The same view types were used for the direct  
vtkTable output of a ProgrammableSouce (right).

Steps to reproduce the problem with PV git master version:

1. Load attached State file

For the left views:
2. First select an item in the left active plot view (MatrixPlotView)  
with a right mouse click (no drag) => Should work 3. Select a line in  
the SpreadSheetView => Should work; the selection is propagated over  
all views (on the same side) 4. Now repeat step 2. => Message: "Uneven  
size of values." occurs and the selection is not being propagated to  
the other views 5. Select a range in the ParallelCoordinates View =>  
Same message as in step 4. is shown

For the right views:
2. First select an item in the right active plot view (MatrixPlotView)  
with a right mouse click (no drag) => Does not work; I have to click  
an drag 3. Select a line in the SpreadSheetView => Should work; the  
selection is propagated over all views (on the same side) 4. Now  
repeat step 2. => Should word 5. Select a range in the  
ParallelCoordinates View => Should work

Hope that someone could reproduce this.

Cheers,
Stephan

Zitat von Stephan Rogge <Stephan.Rogge at tu-cottbus.de>:

> Hello,
>
> I try to visualize a vtkTable with SpreadSheetView, Parallel
> CoordinatesView and PlotMatrixView and observe some strange behavior while
> making a selection of a certain row. To demonstrate the problem I've
> create to scenarios:
>
> ### Scenario 1 with a ProgrammableSource and a Muliblock(vtkTable) output:
>
> NumCols = 15
> NumRows = 100
> math = vtk.vtkMath()
> pdo = self.GetOutput()
> table = vtk.vtkTable()
> for di in range(0, NumCols):
>  d = vtk.vtkDoubleArray()
>  d.SetName("Data Column {0}".format(di))
>  d.SetNumberOfValues(NumRows)
>  for dv in range(0, NumRows):
>     d.SetValue(dv, math.Random() * NumRows)
>  table.AddColumn(d)
> pdo.SetBlock(0, table)
>
> #################################################
>
> ### Scenario 2 with a ProgrammableSource and a vtkTable output:
>
> NumCols = 15
> NumRows = 100
> math = vtk.vtkMath()
> pdo = self.GetTableOutput()
> for di in range(0, NumCols):
>  d = vtk.vtkDoubleArray()
>  d.SetName("Data Column {0}".format(di))
>  d.SetNumberOfValues(NumRows)
>  for dv in range(0, NumRows):
>     d.SetValue(dv, math.Random() * NumRows)
>  pdo.AddColumn(d)
>
> They both produce tables with same structure. The first Source encapsulate
> it within a multi block set. This is being visualized as shown on the
> screenshot (see attached).
>
> When I start to select a row the SpreaSheetView in both cases the PlotView
> and ParallelCoordinatesView highlights their corresponding data sets (as
> expected). But after clicking in the active plot view (in the multi block
> scenario 1) an Debug message occurs which says: "Uneven size for values."
> and the changed selection is not being propagated to the other views. This
> happens only in the Scenario 1 (multi block). In scenario 2 (direct
> vtkTable output) I still can select a point in the active plot view after
> selecting a row in the spread sheet.
>
> Another observation is, that the active plot view recognize a single item
> selection (single right-mouse-click) only in scenario 1 but not scenario
> 2. Here I have to draw small rectangle to select one data point.
>
> Can anyone reproduces this behavior?
>
>
> Best regards,
> Stephan


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