MantisBT - ParaView

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Project

Category

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Date Submitted

Last Update

0012929

ParaView

(No Category)

public

2012-02-13 12:15

2012-10-29 17:04

Reporter

Paul Edwards

Assigned To

Sebastien Jourdain

Priority

normal

Severity

minor

Reproducibility

have not tried

Status

closed

Resolution

duplicate

Platform

OS Version

Product Version

Target Version

Fixed in Version

3.98.0

Project

TBD

Topic Name

Type

incorrect functionality

Summary

0012929: Calculator gives incorrect results for multiblock datasets

Description

The calculator gives incorrect results for multiblock unless the variables have the same index internally. This can be reproduced with the steps below:

1. Create a python source that outputs vtkUnstructuredGrid with the following script:
def add_scalar(ds, val):
                arr = vtk.vtkDoubleArray()
                arr.SetName("Scalar"+str(val))
                arr.SetNumberOfComponents(1)
                arr.SetNumberOfTuples(8)
                for i in range(8):
                                arr.SetTuple1(i, float(val))
                output.GetPointData().AddArray(arr)

output = self.GetOutput()
npts = 8
pts = vtk.vtkPoints()
pts.InsertNextPoint(-3.0, -1.0, -1.0)
pts.InsertNextPoint(-1.0, -1.0, -1.0)
pts.InsertNextPoint(-1.0, 1.0, -1.0)
pts.InsertNextPoint(-3.0, 1.0, -1.0)
pts.InsertNextPoint(-3.0, -1.0, 1.0)
pts.InsertNextPoint(-1.0, -1.0, 1.0)
pts.InsertNextPoint(-1.0, 1.0, 1.0)
pts.InsertNextPoint(-3.0, 1.0, 1.0)
output.SetPoints(pts)
output.Allocate(1,1)
ids = vtk.vtkIdList()
for i in range(npts):
    ids.InsertId(i,i)
add_scalar(output, 1)
add_scalar(output, 2)
output.InsertNextCell(vtk.VTK_HEXAHEDRON, ids)
2. Create a second python source that outputs vtkUnstructuredGrid with the following script (notice the change in order when adding the scalars):
def add_scalar(ds, val):
                arr = vtk.vtkDoubleArray()
                arr.SetName("Scalar"+str(val))
                arr.SetNumberOfComponents(1)
                arr.SetNumberOfTuples(8)
                for i in range(8):
                                arr.SetTuple1(i, float(val))
                output.GetPointData().AddArray(arr)

output = self.GetOutput()
npts = 8
pts = vtk.vtkPoints()
pts.InsertNextPoint(-3.0, -1.0, -1.0)
pts.InsertNextPoint(-1.0, -1.0, -1.0)
pts.InsertNextPoint(-1.0, 1.0, -1.0)
pts.InsertNextPoint(-3.0, 1.0, -1.0)
pts.InsertNextPoint(-3.0, -1.0, 1.0)
pts.InsertNextPoint(-1.0, -1.0, 1.0)
pts.InsertNextPoint(-1.0, 1.0, 1.0)
pts.InsertNextPoint(-3.0, 1.0, 1.0)
output.SetPoints(pts)
output.Allocate(1,1)
ids = vtk.vtkIdList()
for i in range(npts):
    ids.InsertId(i,i)
add_scalar(output, 2)
add_scalar(output, 1)
output.InsertNextCell(vtk.VTK_HEXAHEDRON, ids)
3. Group the two python sources together
4. Use the Calculator filter to pass through Scalar1

Steps To Reproduce

Additional Information