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#!/usr/bin/env python
from vtkmodules import vtkIOFides
from vtkmodules.vtkCommonDataModel import vtkPartitionedDataSetCollection
from vtkmodules.vtkCommonExecutionModel import vtkStreamingDemandDrivenPipeline
from vtkmodules.util.misc import vtkGetDataRoot
try:
# Not directly used here, but if it's not imported when VTK_USE_MPI, we get following error:
# Attempting to use an MPI routine before initializing MPICH
from mpi4py import MPI
except ImportError:
pass
VTK_DATA_ROOT = vtkGetDataRoot()
from vtk.test import Testing
class TestFidesBasic(Testing.vtkTest):
def testFirst(self):
r = vtkIOFides.vtkFidesReader()
r.ParseDataModel(VTK_DATA_ROOT + "/Data/vtk-uns-grid-2.json")
r.SetDataSourcePath("source",
VTK_DATA_ROOT + "/Data/tris-blocks-time.bp")
r.UpdateInformation()
self.assertTrue(r.GetOutputInformation(0).Has(
vtkStreamingDemandDrivenPipeline.TIME_STEPS()))
nsteps = r.GetOutputInformation(0).Length(vtkStreamingDemandDrivenPipeline.TIME_STEPS())
self.assertEqual(nsteps, 5)
for i in range(nsteps):
self.assertEqual(r.GetOutputInformation(0).Get(
vtkStreamingDemandDrivenPipeline.TIME_STEPS(),i), i)
pds = r.GetPointDataArraySelection()
pds.DisableAllArrays()
pds.EnableArray("dpot2")
r.ConvertToVTKOn()
r.Update()
pdsc = r.GetOutputDataObject(0)
self.assertTrue(isinstance(pdsc, vtkPartitionedDataSetCollection))
pds = pdsc.GetPartitionedDataSet(0)
nParts = pds.GetNumberOfPartitions()
self.assertEqual(nParts, 4)
ds = pds.GetPartition(0)
self.assertEqual(ds.GetNumberOfCells(), 24)
self.assertEqual(ds.GetNumberOfPoints(), 20)
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 1)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "dpot2")
return
def testSecond(self):
r = vtkIOFides.vtkFidesReader()
r.ParseDataModel(VTK_DATA_ROOT + "/Data/vtk-uns-grid-2.json")
r.SetDataSourcePath("source",
VTK_DATA_ROOT + "/Data/tris-blocks-time.bp")
r.UpdateInformation()
self.assertTrue(r.GetOutputInformation(0).Has(
vtkStreamingDemandDrivenPipeline.TIME_STEPS()))
nsteps = r.GetOutputInformation(0).Length(vtkStreamingDemandDrivenPipeline.TIME_STEPS())
self.assertEqual(nsteps, 5)
for i in range(nsteps):
self.assertEqual(r.GetOutputInformation(0).
Get(vtkStreamingDemandDrivenPipeline.TIME_STEPS(),i), i)
pds = r.GetPointDataArraySelection()
pds.DisableAllArrays()
pds.EnableArray("dpot2")
r.Update()
pdsc = r.GetOutputDataObject(0)
self.assertTrue(isinstance(pdsc, vtkPartitionedDataSetCollection))
pds = pdsc.GetPartitionedDataSet(0)
nParts = pds.GetNumberOfPartitions()
self.assertEqual(nParts, 4)
ds = pds.GetPartition(0)
self.assertEqual(ds.GetNumberOfCells(), 24)
self.assertEqual(ds.GetNumberOfPoints(), 20)
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 1)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "dpot2")
self.assertEqual(ds.GetClassName(), "vtkmDataSet")
return
def testThird(self):
r = vtkIOFides.vtkFidesReader()
r.SetFileName(VTK_DATA_ROOT + "/Data/vtk-uns-grid-2.json")
r.SetDataSourcePath("source",
VTK_DATA_ROOT + "/Data/tris-blocks-time.bp")
r.UpdateInformation()
r.PrepareNextStep()
r.Update()
r.PrepareNextStep()
r.Update()
r.PrepareNextStep()
r.Update()
pdsc = r.GetOutputDataObject(0)
self.assertTrue(isinstance(pdsc, vtkPartitionedDataSetCollection))
pds = pdsc.GetPartitionedDataSet(0)
nParts = pds.GetNumberOfPartitions()
self.assertEqual(nParts, 4)
ds = pds.GetPartition(0)
self.assertEqual(ds.GetNumberOfCells(), 24)
self.assertEqual(ds.GetNumberOfPoints(), 20)
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "dpot")
self.assertEqual(ds.GetClassName(), "vtkmDataSet")
return
def testFourth(self):
# This test is based on selecting a BP file that contains some attributes that helps Fides
# generate a data model, instead of the user providing the data model.
r = vtkIOFides.vtkFidesReader()
r.SetFileName(VTK_DATA_ROOT + "/Data/cartesian-attr.bp")
r.UpdateInformation()
self.assertTrue(r.GetOutputInformation(0).Has(
vtkStreamingDemandDrivenPipeline.TIME_STEPS()))
nsteps = r.GetOutputInformation(0).Length(vtkStreamingDemandDrivenPipeline.TIME_STEPS())
self.assertEqual(nsteps, 1)
for i in range(nsteps):
self.assertEqual(r.GetOutputInformation(0).Get(
vtkStreamingDemandDrivenPipeline.TIME_STEPS(),i), i)
pds = r.GetPointDataArraySelection()
pds.DisableAllArrays()
pds.EnableArray("density")
r.ConvertToVTKOn()
r.Update()
pdsc = r.GetOutputDataObject(0)
self.assertTrue(isinstance(pdsc, vtkPartitionedDataSetCollection))
pds = pdsc.GetPartitionedDataSet(0)
nParts = pds.GetNumberOfPartitions()
self.assertEqual(nParts, 1)
ds = pds.GetPartition(0)
self.assertEqual(ds.GetNumberOfCells(), 440)
self.assertEqual(ds.GetNumberOfPoints(), 648)
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 1)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "density")
return
def testFifth(self):
# This test is based on selecting a BP file that contains a group of meshes.
r = vtkIOFides.vtkFidesReader()
r.SetFileName(VTK_DATA_ROOT + "/Data/groups.bp")
r.UpdateInformation()
self.assertTrue(r.GetOutputInformation(0).Has(
vtkStreamingDemandDrivenPipeline.TIME_STEPS()))
nsteps = r.GetOutputInformation(0).Length(vtkStreamingDemandDrivenPipeline.TIME_STEPS())
self.assertEqual(nsteps, 11)
for i in range(nsteps):
self.assertEqual(r.GetOutputInformation(0).Get(
vtkStreamingDemandDrivenPipeline.TIME_STEPS(),i), i)
pds = r.GetPointDataArraySelection()
pds.DisableAllArrays()
pds.EnableArray("accel")
pds.EnableArray("disp")
pds.EnableArray("force")
cds = r.GetCellDataArraySelection()
cds.DisableAllArrays()
cds.EnableArray("eqps")
cds.EnableArray("mises")
r.ConvertToVTKOn()
r.Update()
pdsc = r.GetOutputDataObject(0)
self.assertTrue(isinstance(pdsc, vtkPartitionedDataSetCollection))
self.assertEqual(pdsc.GetNumberOfPartitionedDataSets(), 4)
pds = pdsc.GetPartitionedDataSet(0)
nParts = pds.GetNumberOfPartitions()
self.assertEqual(nParts, 1)
ds = pds.GetPartition(0)
self.assertEqual(ds.GetNumberOfCells(), 8)
self.assertEqual(ds.GetNumberOfPoints(), 27)
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 3)
self.assertEqual(ds.GetCellData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "accel")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "disp")
self.assertEqual(ds.GetPointData().GetArray(2).GetName(), "force")
self.assertEqual(ds.GetCellData().GetArray(0).GetName(), "eqps")
self.assertEqual(ds.GetCellData().GetArray(1).GetName(), "mises")
return
def testSixth(self):
# This test reads a uniform grid with 4 blocks. It tests the ability of fides to
# bridge gaps between partitions.
r = vtkIOFides.vtkFidesReader()
r.SetFileName(VTK_DATA_ROOT + "/Data/gs.bp")
r.UpdateInformation()
self.assertTrue(r.GetOutputInformation(0).Has(
vtkStreamingDemandDrivenPipeline.TIME_STEPS()))
nsteps = r.GetOutputInformation(0).Length(vtkStreamingDemandDrivenPipeline.TIME_STEPS())
self.assertEqual(nsteps, 100)
for i in range(nsteps):
self.assertEqual(r.GetOutputInformation(0).Get(
vtkStreamingDemandDrivenPipeline.TIME_STEPS(),i), i)
r.ConvertToVTKOn()
r.CreateSharedPointsOff()
r.Update()
pdsc = r.GetOutputDataObject(0)
self.assertTrue(isinstance(pdsc, vtkPartitionedDataSetCollection))
self.assertEqual(pdsc.GetNumberOfPartitionedDataSets(), 1)
pds = pdsc.GetPartitionedDataSet(0)
nParts = pds.GetNumberOfPartitions()
self.assertEqual(nParts, 4) # gray-scott example has 4 partitions
ds = pds.GetPartition(0)
self.assertEqual(ds.GetExtent(), (0, 31, 0, 31, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 65536)
ds = pds.GetPartition(1)
self.assertEqual(ds.GetExtent(), (0, 31, 32, 63, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 65536)
ds = pds.GetPartition(2)
self.assertEqual(ds.GetExtent(), (32, 63, 0, 31, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 65536)
ds = pds.GetPartition(3)
self.assertEqual(ds.GetExtent(), (32, 63, 32, 63, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 65536)
# Create shared points. vtkFidesReader will bridge the gaps between blocks.
r.CreateSharedPointsOn()
r.Update()
pdsc = r.GetOutputDataObject(0)
self.assertTrue(isinstance(pdsc, vtkPartitionedDataSetCollection))
self.assertEqual(pdsc.GetNumberOfPartitionedDataSets(), 1)
pds = pdsc.GetPartitionedDataSet(0)
nParts = pds.GetNumberOfPartitions()
self.assertEqual(nParts, 4) # gray-scott example has 4 partitions
ds = pds.GetPartition(0)
self.assertEqual(ds.GetExtent(), (0, 31, 0, 31, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 65536)
ds = pds.GetPartition(1)
self.assertEqual(ds.GetExtent(), (0, 31, 31, 63, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 67584)
ds = pds.GetPartition(2)
self.assertEqual(ds.GetExtent(), (31, 63, 0, 31, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 67584)
ds = pds.GetPartition(3)
self.assertEqual(ds.GetExtent(), (31, 63, 31, 63, 0, 63))
self.assertEqual(ds.GetPointData().GetNumberOfArrays(), 2)
self.assertEqual(ds.GetPointData().GetArray(0).GetName(), "U")
self.assertEqual(ds.GetPointData().GetArray(1).GetName(), "V")
self.assertEqual(ds.GetPointData().GetNumberOfTuples(), 69696)
return
if __name__ == "__main__":
Testing.main([(TestFidesBasic, 'test')])
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