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from __future__ import print_function
from vtkmodules.vtkCommonCore import (
vtkFloatArray,
vtkIntArray,
vtkPoints,
)
from vtkmodules.vtkCommonDataModel import (
vtkRectilinearGrid,
vtkStructuredGrid,
vtkTable,
)
from vtkmodules.vtkCommonExecutionModel import (
vtkExtentTranslator,
vtkStreamingDemandDrivenPipeline,
)
from vtkmodules.vtkFiltersCore import vtkContourFilter
from vtkmodules.vtkFiltersGeneral import vtkDataSetTriangleFilter
from vtkmodules.vtkFiltersProgrammable import vtkProgrammableFilter
from vtkmodules.vtkIOParallelXML import (
vtkXMLPImageDataWriter,
vtkXMLPRectilinearGridWriter,
vtkXMLPStructuredGridWriter,
vtkXMLPTableWriter,
vtkXMLPUnstructuredGridWriter,
)
from vtkmodules.vtkIOXML import (
vtkXMLPImageDataReader,
vtkXMLPRectilinearGridReader,
vtkXMLPStructuredGridReader,
vtkXMLPTableReader,
vtkXMLPUnstructuredGridReader,
)
from vtkmodules.vtkImagingCore import vtkRTAnalyticSource
from vtkmodules.vtkParallelCore import (
vtkCommunicator,
vtkMultiProcessController,
)
from vtkmodules.util.misc import vtkGetTempDir
VTK_TEMP_DIR = vtkGetTempDir()
contr = vtkMultiProcessController.GetGlobalController()
if not contr:
nranks = 1
rank = 0
else:
nranks = contr.GetNumberOfProcesses()
rank = contr.GetLocalProcessId()
pf = vtkProgrammableFilter()
def execute():
info = pf.GetOutputInformation(0)
et = vtkExtentTranslator()
if pf.GetInput().IsA("vtkDataSet"):
et.SetWholeExtent(info.Get(vtkStreamingDemandDrivenPipeline.WHOLE_EXTENT()))
et.SetPiece(info.Get(vtkStreamingDemandDrivenPipeline.UPDATE_PIECE_NUMBER()))
et.SetNumberOfPieces(info.Get(vtkStreamingDemandDrivenPipeline.UPDATE_NUMBER_OF_PIECES()))
et.PieceToExtent()
output = pf.GetOutput()
input = pf.GetInput()
output.ShallowCopy(input)
if pf.GetInput().IsA("vtkDataSet"):
output.Crop(et.GetExtent())
pf.SetExecuteMethod(execute)
def GetSource(dataType):
s = vtkRTAnalyticSource()
if dataType == 'ImageData':
return s
elif dataType == 'UnstructuredGrid':
dst = vtkDataSetTriangleFilter()
dst.SetInputConnection(s.GetOutputPort())
return dst
elif dataType == 'RectilinearGrid':
s.Update()
input = s.GetOutput()
rg = vtkRectilinearGrid()
rg.SetExtent(input.GetExtent())
dims = input.GetDimensions()
spacing = input.GetSpacing()
x = vtkFloatArray()
x.SetNumberOfTuples(dims[0])
for i in range(dims[0]):
x.SetValue(i, spacing[0]*i)
y = vtkFloatArray()
y.SetNumberOfTuples(dims[1])
for i in range(dims[1]):
y.SetValue(i, spacing[1]*i)
z = vtkFloatArray()
z.SetNumberOfTuples(dims[2])
for i in range(dims[2]):
z.SetValue(i, spacing[2]*i)
rg.SetXCoordinates(x)
rg.SetYCoordinates(y)
rg.SetZCoordinates(z)
rg.GetPointData().ShallowCopy(input.GetPointData())
pf.SetInputData(rg)
return pf
elif dataType == 'StructuredGrid':
s.Update()
input = s.GetOutput()
sg = vtkStructuredGrid()
sg.SetExtent(input.GetExtent())
pts = vtkPoints()
sg.SetPoints(pts)
npts = input.GetNumberOfPoints()
for i in range(npts):
pts.InsertNextPoint(input.GetPoint(i))
sg.GetPointData().ShallowCopy(input.GetPointData())
pf.SetInputData(sg)
return pf
elif dataType == 'Table':
s.Update()
input = s.GetOutput()
table = vtkTable()
RTData = input.GetPointData().GetArray(0)
nbTuples = RTData.GetNumberOfTuples()
array = vtkFloatArray()
array.SetName("RTData")
array.SetNumberOfTuples(nbTuples)
for i in range(0, nbTuples):
array.SetTuple1(i, float(RTData.GetTuple1(i)))
table.AddColumn(array)
pf.SetInputData(table)
return pf
def TestDataType(dataType, reader, writer, ext, numTris, useSubdir=False):
s = GetSource(dataType)
filename = VTK_TEMP_DIR + "/%s.p%s" % (dataType, ext)
writer.SetInputConnection(s.GetOutputPort())
npieces = 16
writer.SetNumberOfPieces(npieces)
pperrank = npieces // nranks
start = pperrank * rank
end = start + pperrank - 1
writer.SetStartPiece(start)
writer.SetEndPiece(end)
writer.SetFileName(filename)
if useSubdir:
writer.SetUseSubdirectory(True)
#writer.SetDataModeToAscii()
writer.Write()
if contr:
contr.Barrier()
reader.SetFileName(filename)
ntris = 0
if dataType != "Table":
cf = vtkContourFilter()
cf.SetValue(0, 130)
cf.SetComputeNormals(0)
cf.SetComputeGradients(0)
cf.SetInputConnection(reader.GetOutputPort())
cf.UpdateInformation()
cf.GetOutputInformation(0).Set(vtkStreamingDemandDrivenPipeline.UPDATE_NUMBER_OF_PIECES(), nranks)
cf.GetOutputInformation(0).Set(vtkStreamingDemandDrivenPipeline.UPDATE_PIECE_NUMBER(), rank)
cf.Update()
ntris = cf.GetOutput().GetNumberOfCells()
else:
reader.UpdateInformation()
reader.GetOutputInformation(0).Set(vtkStreamingDemandDrivenPipeline.UPDATE_NUMBER_OF_PIECES(), nranks)
reader.GetOutputInformation(0).Set(vtkStreamingDemandDrivenPipeline.UPDATE_PIECE_NUMBER(), rank)
reader.Update()
ntris = reader.GetOutput().GetNumberOfRows()
da = vtkIntArray()
da.InsertNextValue(ntris)
da2 = vtkIntArray()
da2.SetNumberOfTuples(1)
contr.AllReduce(da, da2, vtkCommunicator.SUM_OP)
if rank == 0:
print(da2.GetValue(0))
import os
os.remove(filename)
for i in range(npieces):
if not useSubdir:
os.remove(VTK_TEMP_DIR + "/%s_%d.%s" % (dataType, i, ext))
else:
os.remove(VTK_TEMP_DIR + "/%s/%s_%d.%s" %(dataType, dataType, i, ext))
assert da2.GetValue(0) == numTris
TestDataType('ImageData', vtkXMLPImageDataReader(), vtkXMLPImageDataWriter(), 'vti', 4924)
TestDataType('RectilinearGrid', vtkXMLPRectilinearGridReader(), vtkXMLPRectilinearGridWriter(), 'vtr', 4924)
TestDataType('StructuredGrid', vtkXMLPStructuredGridReader(), vtkXMLPStructuredGridWriter(), 'vts', 4924)
TestDataType('UnstructuredGrid', vtkXMLPUnstructuredGridReader(), vtkXMLPUnstructuredGridWriter(), 'vtu', 11856)
TestDataType('Table', vtkXMLPTableReader(), vtkXMLPTableWriter(), 'vtt', 18522)
# Test writers with UseSubdirectory on
TestDataType('ImageData', vtkXMLPImageDataReader(), vtkXMLPImageDataWriter(), 'vti', 4924, useSubdir=True)
TestDataType('RectilinearGrid', vtkXMLPRectilinearGridReader(), vtkXMLPRectilinearGridWriter(), 'vtr', 4924, useSubdir=True)
TestDataType('StructuredGrid', vtkXMLPStructuredGridReader(), vtkXMLPStructuredGridWriter(), 'vts', 4924, useSubdir=True)
TestDataType('UnstructuredGrid', vtkXMLPUnstructuredGridReader(), vtkXMLPUnstructuredGridWriter(), 'vtu', 11856, useSubdir=True)
TestDataType('Table', vtkXMLPTableReader(), vtkXMLPTableWriter(), 'vtt', 18522, useSubdir=True)
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