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IDProjectCategoryView StatusDate SubmittedLast Update
0002974VTK(No Category)public2006-03-18 17:062016-08-12 09:54
Reporterbryan 
Assigned ToDave DeMarle 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Project
Type
Summary0002974: vtkProgrammableSource doesn't work with StructuredGrids
DescriptionvtkProgrammableSource, used from the python bindings, apparently cannot product valid StructuredGrid datasets. The GetStructuredGridOutput() method returns a StructuredGrid object which cannot be rendered.

The script below illustrates this. This script should create a 25-by-25 grid. However, nothing is rendered, even though the output of the Source appears correct (when 'printed').

By contrast, if I create a StructuredGrid manually and use the same function to create the pointSet, it works fine.

Only tested this on linux so far. The problem is the same on VTK-4.2 & 5.0.0

Below is the example (python) code:
------------------------------------------
import vtk

source = vtk.vtkProgrammableSource()
def Execute():
    grid = source.GetStructuredGridOutput()
    points = vtk.vtkPoints()

    nx,ny = 25,25
    
    for i in xrange(nx):
        for j in xrange(ny):
            points.InsertNextPoint(i/5.0,j/5.0,0.0)
            
    grid.SetDimensions(nx,ny,1)
    grid.SetPoints(points)

source.SetExecuteMethod(Execute)
    
map = vtk.vtkDataSetMapper()
map.SetInput(source.GetStructuredGridOutput())

act = vtk.vtkActor()
act.SetMapper(map)

ren = vtk.vtkRenderer()
ren.AddActor(act)

renwin = vtk.vtkRenderWindow()
renwin.AddRenderer(ren)

iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renwin)
iren.Start()
Steps To Reproduce
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Issue History
Date ModifiedUsernameFieldChange
2008-11-30 09:12Mathieu MalaterreAssigned ToMathieu Malaterre => David Cole
2011-01-19 09:57David ColeAssigned ToDavid Cole =>
2011-06-16 13:11Zack GalbreathCategory => (No Category)
2013-06-05 17:48Jean-Christophe Fillion-RobinNote Added: 0030953
2013-07-22 19:20Dave DeMarleNote Added: 0031221
2013-07-22 19:20Dave DeMarleStatusbacklog => expired
2013-07-22 19:20Dave DeMarleAssigned To => Dave DeMarle
2016-08-12 09:54Kitware RobotNote Added: 0036845
2016-08-12 09:54Kitware RobotStatusexpired => closed
2016-08-12 09:54Kitware RobotResolutionopen => moved

Notes
(0030953)
Jean-Christophe Fillion-Robin   
2013-06-05 17:48   
Does the problem still occur with VTK 5.10 ? VTK 6 ?
(0031221)
Dave DeMarle   
2013-07-22 19:20   
The problem was that you needed to announce the structured extent in the request information pass. If you that doesn't work in 6.0.0, please reopen.
(0036845)
Kitware Robot   
2016-08-12 09:54   
Resolving issue as `moved`.

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