def __init__(self, module_manager):
SimpleVTKClassModuleBase.__init__(
self, module_manager,
vtk.vtkXMLImageDataWriter(), 'Writing vtkXMLImageData.',
('vtkXMLImageData',), (),
replaceDoc=True,
inputFunctions=None, outputFunctions=None)
def numpy_to_vti(image, path):
"""
Convert a numpy array into a .vti file.
Args
----
image: 3D ndarray with image data
path: Where to save the image
Returns
-------
True if writing successful
"""
import vtk
assert image.ndim == 3
dim_x, dim_y, dim_z = image.shape
image_data = vtk.vtkImageData()
image_data.SetDimensions(dim_x, dim_y, dim_z)
image_data.AllocateScalars(vtk.VTK_DOUBLE, 1)
for i in range(dim_x):
for j in range(dim_y):
for k in range(dim_z):
data = image[i, j, k]
image_data.SetScalarComponentFromDouble(i, j, k, 0, data)
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(path)
writer.SetInputData(image_data)
return bool(writer.Write())
def write_vtk(self, DX=2.0, DY=2.0, DZ=0.05):
"""Reads cell data from vals array and writes into a VTK file called
'Stratal_Arch.vti' and is a structure grid object. Spacing defaults
are 2.0/2.0/0.05"""
vtk_obj = vtkImageData()
vtk_obj.SetSpacing(DX, DY, DZ)
vtk_obj.SetDimensions(self.dims[0] + 1, self.dims[1] + 1,
self.dims[2] + 1)
# Start writing from the top of the object to match output from Eclipse
vtk_obj.SetOrigin(0, 0, self.dims[2] + 1)
array = vtkIntArray()
array.SetName("Stratal Architecture")
array.SetNumberOfComponents(1)
for z in range(0, self.dims[2]):
for y in range(0, self.dims[1]):
for x in range(0, self.dims[0]):
val = self.vals[x][y][z]
array.InsertNextTuple1(val)
vtk_obj.GetCellData().AddArray(array)
vtk_f = vtkXMLImageDataWriter()
vtk_f.SetFileName("Stratal_Arch.vti")
vtk_f.SetInputData(vtk_obj)
vtk_f.Write()
def __init__(self, module_manager):
# call parent constructor
ModuleBase.__init__(self, module_manager)
self._writer = vtk.vtkXMLImageDataWriter()
# ctor for this specific mixin
FilenameViewModuleMixin.__init__(
self,
'Select a filename',
'VTK Image Data (*.vti)|*.vti|All files (*)|*',
{'vtkXMLImageDataWriter': self._writer},
fileOpen=False)
module_utils.setup_vtk_object_progress(
self, self._writer,
'Writing VTK ImageData')
self._writer.SetDataModeToBinary()
# set up some defaults
self._config.filename = ''
self._module_manager.sync_module_logic_with_config(self)
def DoCoProcessing(datadescription):
"Callback to do co-processing for current timestep"
global coprocessor
# Update the coprocessor by providing it the newly generated simulation data.
# If the pipeline hasn't been setup yet, this will setup the pipeline.
coprocessor.UpdateProducers(datadescription)
# Write output data, if appropriate.
coprocessor.WriteData(datadescription)
# Write image capture (Last arg: rescale lookup table), if appropriate.
coprocessor.WriteImages(datadescription,
rescale_lookuptable=rescale_lookuptable,
image_quality=0,
padding_amount=imageFileNamePadding)
# Live Visualization, if enabled.
coprocessor.DoLiveVisualization(datadescription, "localhost", 22222)
view = GetActiveView()
ss = vtk.vtkWindowToImageFilter()
ss.SetInputBufferTypeToZBuffer()
ss.SetInput(view.SMProxy.GetRenderWindow())
ss.Update()
writer = vtk.vtkXMLImageDataWriter()
writer.SetInputConnection(ss.GetOutputPort())
writer.SetFileName("z_buffer_%d.vti" % (view.ViewTime * 10))
writer.Write()
def saveToVTI(filename, data, s, d, o):
""" Zapisywanie danych do formatu vti
data - to numpy array
s - spacing (sx,sy,sz)
d - dimensions (dx,dy,dz)
o - origin (ox,oy,oz)
"""
grid = vtkImageData()
grid.SetSpacing(s[0], s[1], s[2])
grid.SetDimensions(d[0], d[1], d[2])
grid.SetOrigin(o[0], o[1], o[2])
n = grid.GetNumberOfPoints()
array = vtkFloatArray()
array.SetNumberOfComponents(1)
array.SetNumberOfTuples(n)
array.SetVoidArray(data, np.prod(d), 1)
grid.GetPointData().SetScalars(array)
writer = vtkXMLImageDataWriter()
writer.SetCompressorTypeToNone()
writer.SetEncodeAppendedData(0)
writer.SetFileName(filename)
writer.SetInputData(grid)
writer.Update()
def Export(imagedata, filename, bin=False):
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(filename)
if bin:
writer.SetDataModeToBinary()
else:
writer.SetDataModeToAscii()
def write_data(data,x,y,z):
siz = x*y*z
fs="%dH"%siz
print "min(data)=",min(data),"max(data)=",max(data)
print "size=",siz,"len of data=",len(data)
ss = struct.pack(fs,*data)
print "min(ss)=",min(ss),"max(ss)=",max(ss),"len(ss)=",len(ss)
importer=vtk.vtkImageImport()
importer.CopyImportVoidPointer(ss,len(ss))
importer.SetDataScalarTypeToUnsignedShort()
#importer.SetDataScalarTypeToUnsignedChar()
#importer.SetDataScalarType(5)
importer.SetNumberOfScalarComponents(1)
importer.SetDataExtent(0,x-1,0,y-1,0,z-1)
importer.SetWholeExtent(0,x-1,0,y-1,0,z-1)
importer.Update()
image = importer.GetOutput()
#print image
print "Image scalar range=",image.GetScalarRange()
print "Image scalar type=",image.GetScalarTypeAsString()
#print image
writer = vtk.vtkXMLImageDataWriter()
writer.SetInput(image)
writer.SetFileName("output.vti")
print "Writing..."
writer.Write()
print "done"
def exportImage(self, volumeNode, outputFormat, outputFolder):
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName("{0}/{1}.vti".format(outputFolder,
volumeNode.GetName()))
writer.SetInputData(volumeNode.GetImageData())
writer.SetCompressorTypeToZLib()
writer.Write()
def convert__imageData2vti( self, tag=None ):
# ------------------------------------------------- #
# --- [1] Arguments Check --- #
# ------------------------------------------------- #
if ( tag is None ): sys.exit( "[convert__pointData2vts -@vtkDataManager-] tag == ???" )
if ( self.Data[tag].pointData is None ):
self.Data[tag].generate__pointData()
# ------------------------------------------------- #
# --- [2] Preparation --- #
# ------------------------------------------------- #
imageData_ = vtknp.numpy_to_vtk( self.Data[tag].pointData, deep=True )
imageData_.SetName( tag )
# ------------------------------------------------- #
# --- [3] store points & pointData --- #
# ------------------------------------------------- #
self.image.GetPointData().AddArray( imageData_ )
self.image.SetExtent ( self.Data[tag].Extent )
# ------------------------------------------------- #
# --- [4] save in vtu File --- #
# ------------------------------------------------- #
writer = vtk.vtkXMLImageDataWriter()
if ( self.DataFormat.lower() == "ascii" ):
writer.SetDataModeToAscii()
if ( self.DataFormat.lower() == "binary" ):
writer.SetDataModeToBinary()
writer.SetFileName( self.vtkFile )
writer.SetInputData( self.image )
writer.Write()
print( "[vtkDataConverter] output :: {0} ".format( self.vtkFile ) )
def Export(imagedata, filename, bin=False):
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(filename)
if bin:
writer.SetDataModeToBinary()
else:
writer.SetDataModeToAscii()
def __del__(self):
if self._needWrite:
import vtk
vw = vtk.vtkXMLImageDataWriter()
vw.SetFileName(self._vol_file)
vw.SetInputData(self._volume)
vw.Write()
def write_output(self, species, increment):
data = vtk.vtkImageData()
data.SetDimensions(self.extents)
data.SetOrigin(0, 0, 0)
spacing = self.spacing
data.SetSpacing(spacing, spacing, spacing)
result = vtk.vtkDoubleArray()
result.SetNumberOfComponents(1)
result.SetNumberOfTuples(len(self.result))
if species == "Oxygen":
result.SetName("Oxygen Concentration")
elif species == "Factor":
result.SetName("Factor")
# VTK uses [X, Y, Z] ordering so need to reverse the list
# of cells.
numCells = len(self.result)
for idx in range(numCells):
eachValue = self.result[idx]
result.SetValue(idx, eachValue)
data.GetPointData().AddArray(result)
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(self.outputDirectory + "/" + str(self.name) +
species + str(increment) + ".vti")
if vtk.VTK_MAJOR_VERSION <= 5:
writer.SetInput(data)
else:
writer.SetInputData(data)
writer.Write()
def saveVtk3d(filepath, img, spacing=[1.0, 1.0, 1.0]):
assert (img.ndim == 3)
nx, ny, nz = img.shape
dataImport = vtk.vtkImageImport()
dataImport.SetNumberOfScalarComponents(1)
dataImport.SetDataExtent(0, nx - 1, 0, ny - 1, 0, nz - 1)
dataImport.SetWholeExtent(0, nx - 1, 0, ny - 1, 0, nz - 1)
dataType = img.dtype
if dataType == np.float_ or dataType == np.float64:
dataImport.SetDataScalarTypeToDouble()
elif dataType == np.float32:
dataImport.SetDataScalarTypeToFloat()
elif dataType == np.int_ or dataType == np.int32:
dataImport.SetDataScalarTypeToInt()
elif dataType == np.int16:
dataImport.SetDataScalarTypeToShort()
elif dataType == np.uint16:
dataImport.SetDataScalarTypeToUnsignedShort()
elif dataType == np.uint8:
dataImport.SetDataScalarTypeToUnsignedChar()
else:
# convert image to unsigned short
img = utils.nnormalize(img)
img = np.round(img * 65535.0).astype(np.uint16)
dataString = img.tostring(order='F')
dataImport.CopyImportVoidPointer(dataString, len(dataString))
dataImport.SetDataSpacing(spacing)
dataImport.Update()
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(filepath)
writer.SetInputData(dataImport.GetOutput())
writer.Write()
def write_vtk(self, DX=2.0, DY=2.0, DZ=0.05):
"""Reads cell data from vals array and writes into a VTK file called
'Stratal_Arch.vti' and is a structure grid object. Spacing defaults
are 2.0/2.0/0.05"""
vtk_obj = vtkImageData()
vtk_obj.SetSpacing(DX, DY, DZ)
vtk_obj.SetDimensions(self.dims[0]+1, self.dims[1]+1, self.dims[2]+1)
# Start writing from the top of the object to match output from Eclipse
vtk_obj.SetOrigin(0, 0, self.dims[2]+1)
array = vtkIntArray()
array.SetName("Stratal Architecture")
array.SetNumberOfComponents(1)
for z in range(0, self.dims[2]):
for y in range(0, self.dims[1]):
for x in range(0, self.dims[0]):
val = self.vals[x][y][z]
array.InsertNextTuple1(val)
vtk_obj.GetCellData().AddArray(array)
vtk_f = vtkXMLImageDataWriter()
vtk_f.SetFileName("Stratal_Arch.vti")
vtk_f.SetInputData(vtk_obj)
vtk_f.Write()
def generate(self, input_path, output_directory, part_name):
input_path = work_dir + "/vtk_image/itk_tile_0_2_6.vti"
reader = vtk.vtkXMLImageDataReader()
reader.SetFileName(input_path)
reader.Update()
pad_filter = vtk.vtkImageConstantPad()
pad_filter.SetInputConnection(reader.GetOutputPort())
pad_filter.SetConstant(0)
pad_filter.SetOutputWholeExtent(reader.GetOutput().GetExtent()[0]-5,
reader.GetOutput().GetExtent()[1]+5,
reader.GetOutput().GetExtent()[2]-5,
reader.GetOutput().GetExtent()[3]+5,
reader.GetOutput().GetExtent()[4]-5,
reader.GetOutput().GetExtent()[5]+5)
pad_filter.Update()
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(work_dir + "/surface/itk_tile_0_2_6_pad.vti")
writer.SetInputConnection(pad_filter.GetOutputPort())
writer.Update()
myArguments = 'vmtklevelsetsegmentation -ifile ' + work_dir + "/surface/itk_tile_0_2_6_pad.vti" + ' -ofile ' + output_path+"/itk_tile_0_2_6_ls.vti"
myPype = pypes.PypeRun(myArguments)
myArguments = 'vmtkmarchingcubes -ifile ' + output_path+"/itk_tile_0_2_6_ls.vti" + ' -ofile ' + output_path+"/itk_tile_0_2_6_model.vtp"
myPype = pypes.PypeRun(myArguments)
def write_vtk_image(vtkIm, fn, M=None):
"""
This function writes a vtk image to disk
Args:
vtkIm: the vtk image to write
fn: file name
Returns:
None
"""
print("Writing vti with name: ", fn)
if M is not None:
M.Invert()
reslice = vtk.vtkImageReslice()
reslice.SetInputData(vtkIm)
reslice.SetResliceAxes(M)
reslice.SetInterpolationModeToNearestNeighbor()
reslice.Update()
vtkIm = reslice.GetOutput()
_, extension = os.path.splitext(fn)
if extension == '.vti':
writer = vtk.vtkXMLImageDataWriter()
elif extension == '.vtk':
writer = vtk.vtkStructuredPointsWriter()
elif extension == '.mhd':
writer = vtk.vtkMetaImageWriter()
else:
raise ValueError("Incorrect extension " + extension)
writer.SetInputData(vtkIm)
writer.SetFileName(fn)
writer.Update()
writer.Write()
return
def saveImageToVTI(data, outputFile):
# Currently, saves only the first time point !
imageData = vtk.vtkImageData()
# Sets the vtkImageData object's dimensions to match the data
lx, ly, lz = data[0].shape
lt = len(data)
imageData.SetDimensions(lx, ly, lz)
# Allocates scalars of the UINT8 type (value=3)
imageData.AllocateScalars(3, 1)
writer = vtk.vtkXMLImageDataWriter()
path, file = os.path.split(outputFile)
if not os.path.exists(path):
os.mkdir(path)
# This function writes the data for one time step into the vtkImageData object,
# and returns the vtkImageData object
writer.SetFileName(outputFile)
for z in range(lz):
for y in range(ly):
for x in range(lx):
imageData.SetScalarComponentFromDouble(x, y, z, 0,
data[0][x, y, z])
# Writes the VTI files if requested
writer.SetInputData(imageData)
writer.Write()
def _handlerVoiSaveButton(self, event):
input_data = self.getPrimaryInput()
filename = self.controlFrame.voiFilenameText.GetValue()
if input_data and self._voi_widget.GetEnabled() and filename:
# see if we need to reset to zero origin
zor = self.controlFrame.voiResetToOriginCheck.GetValue()
extractVOI = vtk.vtkExtractVOI()
extractVOI.SetInput(input_data)
extractVOI.SetVOI(self._currentVOI)
writer = vtk.vtkXMLImageDataWriter()
writer.SetDataModeToBinary()
writer.SetFileName(filename)
if zor:
ici = vtk.vtkImageChangeInformation()
ici.SetOutputExtentStart(0,0,0)
ici.SetInput(extractVOI.GetOutput())
writer.SetInput(ici.GetOutput())
else:
writer.SetInput(extractVOI.GetOutput())
writer.Write()
def _handlerVoiSaveButton(self, event):
input_data = self.getPrimaryInput()
filename = self.controlFrame.voiFilenameText.GetValue()
if input_data and self._voi_widget.GetEnabled() and filename:
# see if we need to reset to zero origin
zor = self.controlFrame.voiResetToOriginCheck.GetValue()
extractVOI = vtk.vtkExtractVOI()
extractVOI.SetInput(input_data)
extractVOI.SetVOI(self._currentVOI)
writer = vtk.vtkXMLImageDataWriter()
writer.SetDataModeToBinary()
writer.SetFileName(filename)
if zor:
ici = vtk.vtkImageChangeInformation()
ici.SetOutputExtentStart(0, 0, 0)
ici.SetInput(extractVOI.GetOutput())
writer.SetInput(ici.GetOutput())
else:
writer.SetInput(extractVOI.GetOutput())
writer.Write()
def writeVTI(V, filename):
dims = V.shape
imageData = vtk.vtkImageData()
imageData.SetDimensions(dims[1], dims[0], dims[2])
if vtk.VTK_MAJOR_VERSION <= 5:
imageData.SetNumberOfScalarComponents(1)
if V.dtype.type == np.uint8:
imageData.SetScalarTypeToUnsignedChar()
elif V.dtype.type == np.double:
imageData.SetScalarTypeToDouble()
else:
sys.stderr.write('Not support data type\n')
else:
if V.dtype.type == np.uint8:
imageData.AllocateScalars(vtk.VTK_UNSIGNED_CHAR, 1)
elif V.dtype.type == np.double:
imageData.AllocateScalars(vtk.VTK_DOUBLE, 1)
else:
sys.stderr.write('Not support data type\n')
# Fill every entry of the image data with V
for z in range(dims[2]):
for y in range(dims[1]):
for x in range(dims[0]):
imageData.SetScalarComponentFromDouble(y, x, z, 0, V[x, y, z])
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(filename)
if vtk.VTK_MAJOR_VERSION <= 5:
writer.SetInputConnection(imageData.GetProducerPort())
else:
writer.SetInputData(imageData)
writer.Write()
def write_image(_data, path_to_image):
# == make sure data type is unsigned char
cast = vtk.vtkImageCast()
if vtk.VTK_MAJOR_VERSION <= 5:
cast.SetInput(_data)
else:
cast.SetInputData(_data)
cast.SetOutputScalarTypeToUnsignedChar()
cast.Update()
_data = cast.GetOutput()
# == write
file_ext = fu.get_file_extension(path_to_image)
if (file_ext == "vti"):
print("Writing as '.vti' file.")
image_writer = vtk.vtkXMLImageDataWriter()
elif (file_ext == "nii"):
print("Writing as '.nii' file.")
image_writer = vtk.vtkNIFTIImageWriter()
print(
"VTK seems to change image orientation of NIFTI. Make sure to check image orientation relative to original image"
)
elif (file_ext == "mhd" or file_ext == "mha"):
print("Writing as .mhd/.raw or .mha image.")
image_writer = vtk.vtkMetaImageWriter()
image_writer.SetCompression(False)
else:
print("No valid image file extension specified!")
if vtk.VTK_MAJOR_VERSION <= 5:
image_writer.SetInput(_data)
else:
image_writer.SetInputData(_data)
image_writer.SetFileName(path_to_image)
# image_writer.Update()
image_writer.Write()
print("Image has been saved as %s " % (path_to_image))
def write_vtk_field_grid(self, output):
if self.vtk_field_grid is None:
raise TypeError("No grid to be written")
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(output)
writer.SetInputData(self.vtk_field_grid)
writer.Write()
def dicom_to_vti(imagedata, filename):
logging.debug("In data.dicom_to_vti()")
extent = imagedata.GetWholeExtent()
spacing = imagedata.GetSpacing()
origin = imagedata.GetOrigin()
center = (
origin[0] + spacing[0] * 0.5 * (extent[0] + extent[1]),
origin[1] + spacing[1] * 0.5 * (extent[2] + extent[3]),
origin[2] + spacing[2] * 0.5 * (extent[4] + extent[5]),
)
resliceAxes = vtk.vtkMatrix4x4()
vtkMatrix = (1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)
resliceAxes.DeepCopy(vtkMatrix)
resliceAxes.SetElement(0, 3, center[0])
resliceAxes.SetElement(1, 3, center[1])
resliceAxes.SetElement(2, 3, center[2])
reslice = vtk.vtkImageReslice()
reslice.SetInput(imagedata)
reslice.SetInformationInput(imagedata)
reslice.SetResliceAxes(resliceAxes)
reslice.SetOutputDimensionality(3)
reslice.Update()
imagedata = reslice.GetOutput()
writer = vtk.vtkXMLImageDataWriter()
writer.SetInput(imagedata)
writer.SetFileName(filename)
writer.Write()
def histogram3d_to_vtk(histogram3d,
filename='histogram.vti',
path='.',
origin_from_file=True
):
if origin_from_file is True:
origin = histogram3d.scoring_mesh_translations
else:
origin = [0.0, 0.0, 0.0]
imgdat = _vtk.vtkImageData()
imgdat.GetPointData().SetScalars(
_vtk_np.numpy_to_vtk(
num_array=histogram3d.values.ravel(order='F'),
deep=True,
array_type=_vtk.VTK_FLOAT
)
)
imgdat.SetDimensions(histogram3d.xnumbins, histogram3d.ynumbins, histogram3d.znumbins)
imgdat.SetOrigin(origin[0] - (histogram3d.coordinates_normalization * (histogram3d.edges[0][-1] - histogram3d.edges[0][0]) / 2) + (histogram3d.coordinates_normalization * (histogram3d.edges[0][1] - histogram3d.edges[0][0]) / 2),
origin[1] - (histogram3d.coordinates_normalization * (histogram3d.edges[1][-1] - histogram3d.edges[1][0]) / 2) + (histogram3d.coordinates_normalization * (histogram3d.edges[1][1] - histogram3d.edges[1][0]) / 2),
origin[2] - (histogram3d.coordinates_normalization * (histogram3d.edges[2][-1] - histogram3d.edges[2][0]) / 2) + (histogram3d.coordinates_normalization * (histogram3d.edges[2][1] - histogram3d.edges[2][0]) / 2)
)
imgdat.SetSpacing(
histogram3d.coordinates_normalization * (histogram3d.edges[0][1] - histogram3d.edges[0][0]),
histogram3d.coordinates_normalization * (histogram3d.edges[1][1] - histogram3d.edges[1][0]),
histogram3d.coordinates_normalization * (histogram3d.edges[2][1] - histogram3d.edges[2][0])
)
writer = _vtk.vtkXMLImageDataWriter()
writer.SetFileName(os.path.join(path, filename))
writer.SetInputData(imgdat)
writer.SetDataModeToBinary()
writer.Write()
def saveVTKSeg(magDataTemp, cMRA,TOF, pixel_spc, totalNodes, outPath):
MagVTK = numpy_support.numpy_to_vtk(num_array=magDataTemp.ravel(order='F'), deep=True, array_type=vtk.VTK_DOUBLE)
img_vtk = vtk.vtkImageData()
img_vtk.SetDimensions(magDataTemp.shape)
img_vtk.AllocateScalars(vtk.VTK_FLOAT,1)
img_vtk.SetSpacing(pixel_spc)
img_vtk.SetOrigin(0,0,0)
img_vtk.GetPointData().SetScalars(MagVTK)
writer = vtk.vtkXMLImageDataWriter()
if cMRA:
# img_vtk.SetName("cMRA")
writer.SetFileName(outPath + '/cMRAData.vti')
elif TOF:
# img_vtk.SetName("TOF")
writer.SetFileName(outPath + '/TOFData.vti')
else:
# img_vtk.SetName("Magnitude")
writer.SetFileName(outPath + '/MagData.vti')
writer.SetInputData(img_vtk)
## This is set so we can see the data in a text editor.
writer.SetDataModeToAscii()
writer.Write()
return 0
def __del__(self):
if self._needWrite:
import vtk
vw = vtk.vtkXMLImageDataWriter()
vw.SetFileName(self._vol_file)
vw.SetInputData(self._volume)
vw.Write()
def test_dither_boat(self):
self.print_param.fill_pattern.value = 1
self.print_param.skin_offset.value = 1.0
self.print_param.infill.value = 0.5
slicer = VoxelSlicer()
slicer.set_settings(self.printer_setting,
self.printhead_setting, self.print_param)
slicer.SetInputDataObject(self.part)
slicer.Update()
slice_stack = slicer.GetOutputDataObject(0)
img_dim = slice_stack.GetDimensions()
self.assertTrue(img_dim[2] > 0)
(x_min, x_max, y_min, y_max, _, _) = slice_stack.GetExtent()
mid_point = int(img_dim[2]/2)
single_im = vtk.vtkExtractVOI()
single_im.SetVOI(x_min, x_max, y_min, y_max, mid_point, mid_point)
single_im.SetSampleRate(1, 1, 1)
single_im.SetInputData(slice_stack)
single_im.Update()
writer = vtk.vtkBMPWriter()
writer.SetInputData(single_im.GetOutput())
writer.SetFileName(os.path.join(self.out_dir, 'test_d.bmp'))
writer.Update()
writer.Write()
writer_3d = vtk.vtkXMLImageDataWriter()
writer_3d.SetFileName(os.path.join(self.out_dir, 'test_d.vti'))
writer_3d.SetInputData(slice_stack)
writer_3d.Update()
writer_3d.Write()
def save_to_vti(imagedata, file_output):
print("Saving")
w = vtk.vtkXMLImageDataWriter()
w.SetInputData(imagedata)
w.SetFileName(file_output)
w.Write()
print("Saved")
def WriteVTKXMLImageFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing VTK XML image file.')
writer = vtk.vtkXMLImageDataWriter()
writer.SetInputData(self.Image)
writer.SetFileName(self.OutputFileName)
writer.Write()
def WriteVTKXMLImageFile(self):
if self.OutputFileName == "":
self.PrintError("Error: no OutputFileName.")
self.PrintLog("Writing VTK XML image file.")
writer = vtk.vtkXMLImageDataWriter()
writer.SetInput(self.Image)
writer.SetFileName(self.OutputFileName)
writer.Write()
def WriteVTKXMLImageFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing VTK XML image file.')
writer = vtk.vtkXMLImageDataWriter()
writer.SetInputData(self.Image)
writer.SetFileName(self.OutputFileName)
writer.Write()
def CreateSampledvtkFile(self):
# 1: presume we are reading a cellVis snapshot
# 2: use x-axis limits to create a smaller matrix
# 3: be lazy and use a full matrix - preallocation may make it faster
# 4: This shirt is too tight.
# 5: Use vtk python bindings.
n_x = self.x_max - self.x_min + 1
n_y = self.y_max - self.y_min + 1
n_z = self.z_max - self.z_min + 1
# this offset is designed to put x_min, y_min, z_min at 0,0,0
offset_x = self.o_nx / 2 - self.x_min
offset_y = self.o_ny / 2 - self.y_min
offset_z = self.o_nz / 2 - self.z_min
# determine var locations
field_names = self.old_file.header_vars["field_names"].split()
i_rx = field_names.index("rx")
i_ry = field_names.index("ry")
i_rz = field_names.index("rz")
i_vm = field_names.index("Vm")
grid = vtk.vtkImageData()
grid.SetOrigin(0, 0, 0)
dx = 0.2 # float(self.old_file.header_vars["dx"])
dy = 0.2 # float(self.old_file.header_vars["dy"])
dz = 0.2 # float(self.old_file.header_vars["dz"])
grid.SetSpacing(dx, dy, dz)
grid.SetDimensions((n_x + 1), (n_y + 1), (n_z + 1))
array = vtk.vtkDoubleArray()
array.SetNumberOfComponents(1)
array.SetNumberOfTuples(grid.GetNumberOfCells())
print "N tuples: ", array.GetNumberOfTuples()
for ii in range(array.GetNumberOfTuples()):
array.SetValue(ii, -1000.0)
array.SetName("Vm")
print 'parsing records'
for record in self.old_file:
fields = record.split()
x = int(fields[i_rx]) + offset_x
y = int(fields[i_ry]) + offset_y
z = int(fields[i_rz]) + offset_z
vm = float(fields[i_vm])
if ((x < n_x) and (x >= 0) and (y < n_y) and (y >= 0) and (z < n_z)
and (z >= 0)):
# Now lets calculate the effective GID
vtkGID = x + n_x * (y + n_y * z)
if vtkGID < grid.GetNumberOfCells():
array.SetValue(vtkGID, vm)
else:
print 'to big'
print 'Array constructed'
grid.GetCellData().AddArray(array)
print 'Added to grid'
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName((self.new_dir + os.sep + "subset.vti"))
writer.SetInputConnection(grid.GetProducerPort())
print 'writing'
writer.Write()
print 'done'
def write_vtu(name, pd):
""" Writes a VTU file
@param name file name including the file extension ("name.vtp")
@param pd grid represented as vtkPolyData object
"""
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(name)
writer.SetInputData(pd)
writer.Write()
def write_sp(pd):
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName("mean_flow.vti")
if vtk.vtkVersion.GetVTKMajorVersion() <= 5:
writer.SetInput(pd)
else:
writer.SetInputData(pd)
writer.Write()
return
def OnSaveImage(self, e):
path = self._dialog_save()
if path:
vtkimg = to_vtk(self.m_input, self.spacing)
w = vtk.vtkXMLImageDataWriter()
w.SetFileName(path)
w.SetInputData(vtkimg)
w.Write()
def write_sp(pd):
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName("mean_flow.vti")
if vtk.vtkVersion.GetVTKMajorVersion() <= 5:
writer.SetInput(pd)
else:
writer.SetInputData(pd)
writer.Write()
return
def write_to_file(self, fname):
if self.__data is not None:
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(fname)
writer.SetInput(self.__data)
writer.Write()
else:
print "vtk object does not exist. Use VTKStructuredPoints.create_vtk_structured_points to initialize it"
def test_load_data(self):
vol = utils.dataloader.load_file(self.path_file)
output_path = os.path.join(self.output_path, '23_30.vti')
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(output_path)
writer.SetInputData(vol)
writer.Write()
def OnSaveMask(self, e):
path = self._dialog_save()
if path:
mask = numpy.array(self.m_mask[1:, 1:, 1:])
vtkimg = to_vtk(mask, self.spacing)
w = vtk.vtkXMLImageDataWriter()
w.SetFileName(path)
w.SetInputData(vtkimg)
w.Write()
def main():
filename = get_program_parameters()
colors = vtk.vtkNamedColors()
image_data = vtk.vtkImageData()
image_data.SetDimensions(3, 4, 5)
image_data.AllocateScalars(vtk.VTK_DOUBLE, 1)
dims = image_data.GetDimensions()
# Fill every entry of the image data with "2.0"
for z in range(0, dims[2]):
for y in range(0, dims[1]):
for x in range(0, dims[0]):
pixel = image_data.GetScalarPointer(x, y, z)
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(filename)
writer.SetInputData(image_data)
writer.Write()
# Read the file(to test that it was written correctly)
reader = vtk.vtkXMLImageDataReader()
reader.SetFileName(filename)
reader.Update()
# Convert the image to a polydata
image_data_geometry_filter = vtk.vtkImageDataGeometryFilter()
image_data_geometry_filter.SetInputConnection(reader.GetOutputPort())
image_data_geometry_filter.Update()
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(image_data_geometry_filter.GetOutputPort())
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetPointSize(3)
# Setup rendering
renderer = vtk.vtkRenderer()
renderer.AddActor(actor)
renderer.SetBackground(1, 1, 1)
renderer.ResetCamera()
render_window = vtk.vtkRenderWindow()
render_window.AddRenderer(renderer)
render_window_interactor = vtk.vtkRenderWindowInteractor()
renderer.SetBackground(colors.GetColor3d("Azure"))
render_window_interactor.SetRenderWindow(render_window)
render_window.Render()
render_window_interactor.Initialize()
render_window_interactor.Start()
def keyPressEvent(self, event):
if event.key() == QtCore.Qt.Key_Space:
if event.modifiers() == QtCore.Qt.NoModifier:
self.WordleView.Modified()
self.WordleView.Update()
elif event.modifiers() == QtCore.Qt.ShiftModifier:
self.table.Modified()
self.WordleView.Update()
# Change Fonts (f)
if event.key() == QtCore.Qt.Key_F:
if self.font_flag:
self.WordleView.SetFontFamily("Tekton Pro")
else:
self.WordleView.SetFontFamily("Rockwell")
self.font_flag = not self.font_flag
self.WordleView.Update()
# Write PNG (n)
# Trying to use a integer-based QImage
if event.key() == QtCore.Qt.Key_N:
self.WordleView.SaveImage("out.png")
# Grab ImageData (i)
if event.key() == QtCore.Qt.Key_I:
image = self.WordleView.GetImageData()
# print image
iw = vtk.vtkXMLImageDataWriter()
iw.SetInput(image)
iw.SetFileName("out.vti")
iw.Write()
# Write PDF (p)
if event.key() == QtCore.Qt.Key_P:
self.WordleView.SavePDF("out.pdf")
# Write SVG (s)
# SVG generation not compiled in by default...
# if event.key() == QtCore.Qt.Key_S:
# self.WordleView.SaveSVG("out.svg")
# Switch only colors
if event.key() == QtCore.Qt.Key_C:
self.color_by_array = not self.color_by_array
if event.modifiers() == QtCore.Qt.NoModifier:
self.WordleView.SetColorByArray(self.color_by_array)
self.WordleView.Update()
elif event.modifiers() == QtCore.Qt.ShiftModifier:
if self.color_by_array:
self.WordleView.ApplyViewTheme(self.vt)
else:
self.WordleView.ApplyViewTheme(self.vt2)
self.WordleView.Update()
def vtkImageData2vti(filePath, source):
"""Export a ``vtk.vtkImageData`` object to VTI file.
Parameters
----------
filePath : str
Full path for the VTI to be created.
source : vtk.vtkImageData
object.
"""
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(filePath)
writer.SetInput(source)
writer.Write()
def writeImage(
image,
filename,
verbose=1):
myVTK.myPrint(verbose, "*** writeImage: " + filename + " ***")
if ('vtk' in filename):
image_writer = vtk.vtkImageWriter()
elif ('vti' in filename):
image_writer = vtk.vtkXMLImageDataWriter()
else:
assert 0, "File must be .vtk or .vti. Aborting."
image_writer.SetFileName(filename)
image_writer.SetInputData(image)
image_writer.Update()
image_writer.Write()
def getWriter(self,polyData):
writer = None;
if self.destFormat == "vti":
writer = vtk.vtkXMLImageDataWriter();
writer.SetFileName(self.dest);
elif self.destFormat in ("mha","mhd","raw"):
writer = vtk.vtkMetaImageWriter();
writer.SetFilePrefix(self.dest);
writer.SetFileName(self.dest);
elif self.destFormat == "mnc":
writer = vtk.vtkMINCImageWriter();
writer.SetFileName(self.dest);
writer.StrictValidationOff();
elif self.destFormat == "vtk":
writer = vtk.vtkUnstructuredGridWriter();
writer.SetFileName(self.dest);
writer.SetInputData(polyData);
writer.Update();
return writer;
def save_image_data(handle, image_data):
"""
Save vtkImageData to XML file.
:param handle: file name
:param image_data: source
:type handle: str
:type image_data: :py:class:`vtk.vtkImageData`
>>> image_data = create_image_data(32, 32, 32)
>>> save_image_data('test.vit', image_data)
"""
stub, ext = os.path.splitext(handle)
handle = stub + '.vti'
writer = vtk.vtkXMLImageDataWriter()
writer.SetInput(image_data)
writer.SetFileName(handle)
writer.Write()
def WriteToFile(self, imageData, exportFileName, fileType):
if fileType == DataReader.TypeMHD:
if not exportFileName.endswith(".mhd"):
exportFileName = exportFileName + ".mhd"
writer = vtkMetaImageWriter()
writer.SetFileName(exportFileName)
writer.SetInputData(imageData)
writer.Write()
elif fileType == DataReader.TypeVTI:
writer = vtkXMLImageDataWriter()
writer.SetFileName(exportFileName)
writer.SetInputData(imageData)
writer.Write()
elif fileType == DataReader.TypeMHA:
writer = vtkMetaImageWriter()
writer.SetFileName(exportFileName)
writer.SetInputData(imageData)
writer.Write()
else:
raise NotImplementedError("No writing support for type " + str(fileType))
def write_file(self):
"""Writes all VTK grids in self.grid to VTI files"""
for key, value in self.grid.iteritems():
# creates directory for each term in Eclipse project directory
# root for all VTI files is dated by parser runtime date
dir_name = path.join(self.dir, time.strftime("%d_%m_%Y"))
dir_name = path.join(dir_name, key)
try:
makedirs(dir_name)
except OSError:
pass
i = 1
for each in tqdm(value, "Writing "+key+" vtk files"):
legacy = vtkXMLImageDataWriter()
legacy.SetFileName(path.join(dir_name, key + str(i) + '.vti'))
legacy.SetInputData(each)
legacy.Write()
i += 1
def write_vtk(arr, DX=2.0, DY=2.0, DZ=.05, x_dim=500, y_dim=500, z_dim=600):
vtk = vtkImageData()
vtk.SetSpacing(DX, DY, DZ)
vtk.SetDimensions(x_dim+1, y_dim+1, z_dim+1)
vtk.SetOrigin(0, 0, 0)
vtk_arr = vtkFloatArray()
vtk_arr.SetName("Stratal Permiablities")
vtk_arr.SetNumberOfComponents(1)
for z in range(z_dim):
for y in range(y_dim):
for x in range(x_dim):
vtk_arr.InsertNextTuple1(arr[z][y][x])
vtk.GetCellData().AddArray(vtk_arr)
vtk_writer = vtkXMLImageDataWriter()
vtk_writer.SetFileName("Stratal_Perms.vti")
vtk_writer.SetInputData(vtk)
vtk_writer.Write()
def writeImageData(self, imageData, filename, callback = None):
"""
Writes the given vtkImageData-instance to disk
as .vti-file with the given filename
Parameters: imageData vtkImageData-instance to be written
filename filename to be used
"""
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(filename)
#imageData.Update()
#imageData.UpdateInformation()
x, y, z = imageData.GetDimensions()
self.outputDims = (x,y,z)
pieces = (x * y * z) / (1024 * 1024)
if pieces < 4:pieces = 4
#writer.SetNumberOfPieces(pieces)
writer.SetInput(imageData)
def f(obj, evt):
if obj and callback:
callback(obj.GetProgress())
if scripting.mainWindow:
scripting.mainWindow.updateProgressBar(obj, evt, obj.GetProgress(),"Writing %s"%os.path.basename(filename), 0)
writer.AddObserver("ProgressEvent", lib.messenger.send)
lib.messenger.connect(writer, "ProgressEvent", f)
Logging.info("Performing the write",kw="pipeline")
try:
ret = writer.Write()
x, y, z = imageData.GetDimensions()
self.outputDims = (x,y,z)
if ret == 0:
Logging.error("Failed to write image data",
"Failed to write vtkImageData object to file %s" % self.filename)
return
except Exception, ex:
Logging.error("Failed to write image data",
"Failed to write vtkImageData object to file %s" % self.filename, ex)
return
def writeImage(
image,
filename,
verbose=0):
mypy.my_print(verbose, "*** writeImage: "+filename+" ***")
if ('vtk' in filename):
image_writer = vtk.vtkImageWriter()
elif ('vti' in filename):
image_writer = vtk.vtkXMLImageDataWriter()
else:
assert 0, "File must be .vtk or .vti. Aborting."
mypy.my_print(verbose, "n_points = "+str(image.GetNumberOfPoints()))
image_writer.SetFileName(filename)
if (vtk.vtkVersion.GetVTKMajorVersion() >= 6):
image_writer.SetInputData(image)
else:
image_writer.SetInput(image)
image_writer.Update()
image_writer.Write()
def revti(name):
in_vtifname = name
out_vtifname = "/tmp/"+os.path.basename( os.path.splitext(name)[0] )+'.vti'
reader = vtk.vtkXMLPImageDataReader()
reader.SetFileName(in_vtifname)
reader.Update()
data = reader.GetOutput()
cd = data.GetCellData()
k = 0
bc = cd.GetNumberOfArrays()
while cd.GetNumberOfArrays() > len(save) or k > 10:
k = k + 1
for i in range(cd.GetNumberOfArrays()):
if not ( cd.GetArrayName(i) in save ):
# print "Removing:", cd.GetArrayName(i)
cd.RemoveArray(cd.GetArrayName(i))
break
# else:
# print "Keeping:", cd.GetArrayName(i)
print out_vtifname +" : ", bc, '/', cd.GetNumberOfArrays()
writer = vtk.vtkXMLImageDataWriter()
writer.SetFileName(out_vtifname)
writer.SetInputData(data)
writer.Write()
def writeDatasets(self, event = None):
"""
A method that writes the datasets
"""
dirname = self.browsedir.GetValue()
pattern = self.patternEdit.GetValue()
if self.imageMode == 0:
ext = "ome.tif"
writer = vtkbxd.vtkOMETIFFWriter()
elif self.imageMode == 2:
fext = self.vtkmenu.GetString(self.vtkmenu.GetSelection())
if fext.find("XML") != -1:
ext = "vti"
writer = vtk.vtkXMLImageDataWriter()
else:
ext = "vtk"
writer = vtk.vtkDataSetWriter()
else:
return
pattern = os.path.join(dirname,pattern) + "." + ext
self.dlg = wx.ProgressDialog("Writing", "Writing dataset %d / %d" % (0, 0), maximum = self.imageAmnt, parent = self, style = wx.PD_ELAPSED_TIME | wx.PD_REMAINING_TIME | wx.PD_AUTO_HIDE)
filenames = self.sourceListbox.GetItems()
if len(filenames) != self.c * self.t:
return
if self.imageMode == 0: # vtkOMETIFFWriter specific
writer.SetFileNamePattern(pattern)
writer.SetTimePoints(self.t)
writer.SetChannels(self.c)
# Create uuids
if self.imageAmnt > 1:
for i in range(self.imageAmnt):
uid = uuid.uuid4()
writer.SetUUID(i,uid.get_urn())
for c in range(self.c):
ch_name = self.dataUnits[c].getName()
excitation = int(self.dataUnits[c].getExcitationWavelength())
emission = int(self.dataUnits[c].getEmissionWavelength())
writer.SetChannelInfo(ch_name, excitation, emission)
i = 0
for c in range(self.c):
imageName = self.dataUnits[c].getImageName()
voxelSize = self.dataUnits[c].getVoxelSize()
if self.t > 1:
try:
timeInc = self.dataUnits[c].getTimeStamp(1) - self.dataUnits[c].getTimeStamp(0)
except:
timeInc = 0.0
for t in range(self.t):
filenm = filenames[i]
i += 1
self.dlg.Update(i, "Writing dataset %d / %d" % (i, self.imageAmnt))
if self.imageMode == 0:
writer.SetCurrentChannel(c)
writer.SetCurrentTimePoint(t)
writer.SetImageName(imageName)
writer.SetXResolution(voxelSize[0] * 10**6)
writer.SetYResolution(voxelSize[1] * 10**6)
writer.SetZResolution(voxelSize[2] * 10**6)
if self.t > 1:
writer.SetTimeIncrement(timeInc)
writer.SetFileName(filenm)
data = self.dataUnits[c].getTimepoint(t)
data.SetUpdateExtent(data.GetWholeExtent())
data.Update()
writer.SetInput(data)
writer.Write()
self.dlg.Destroy()
def write_vti(filename, atoms, data=None):
from vtk import vtkStructuredPoints, vtkDoubleArray, vtkXMLImageDataWriter
#if isinstance(fileobj, str):
# fileobj = paropen(fileobj, 'w')
if isinstance(atoms, list):
if len(atoms) > 1:
raise ValueError('Can only write one configuration to a VTI file!')
atoms = atoms[0]
if data is None:
raise ValueError('VTK XML Image Data (VTI) format requires data!')
data = np.asarray(data)
if data.dtype == complex:
data = np.abs(data)
cell = atoms.get_cell()
assert np.all(cell==np.diag(cell.diagonal())), 'Unit cell must be orthogonal'
bbox = np.array(list(zip(np.zeros(3),cell.diagonal()))).ravel()
# Create a VTK grid of structured points
spts = vtkStructuredPoints()
spts.SetWholeBoundingBox(bbox)
spts.SetDimensions(data.shape)
spts.SetSpacing(cell.diagonal() / data.shape)
#spts.SetSpacing(paw.gd.h_c * Bohr)
#print 'paw.gd.h_c * Bohr=',paw.gd.h_c * Bohr
#print 'atoms.cell.diagonal() / data.shape=', cell.diagonal()/data.shape
#assert np.all(paw.gd.h_c * Bohr==cell.diagonal()/data.shape)
#s = paw.wfs.kpt_u[0].psit_nG[0].copy()
#data = paw.get_pseudo_wave_function(band=0, kpt=0, spin=0, pad=False)
#spts.point_data.scalars = data.swapaxes(0,2).flatten()
#spts.point_data.scalars.name = 'scalars'
# Allocate a VTK array of type double and copy data
da = vtkDoubleArray()
da.SetName('scalars')
da.SetNumberOfComponents(1)
da.SetNumberOfTuples(np.prod(data.shape))
for i,d in enumerate(data.swapaxes(0,2).flatten()):
da.SetTuple1(i,d)
# Assign the VTK array as point data of the grid
spd = spts.GetPointData() # type(spd) is vtkPointData
spd.SetScalars(da)
"""
from vtk.util.vtkImageImportFromArray import vtkImageImportFromArray
iia = vtkImageImportFromArray()
#iia.SetArray(Numeric_asarray(data.swapaxes(0,2).flatten()))
iia.SetArray(Numeric_asarray(data))
ida = iia.GetOutput()
ipd = ida.GetPointData()
ipd.SetName('scalars')
spd.SetScalars(ipd.GetScalars())
"""
# Save the ImageData dataset to a VTK XML file.
w = vtkXMLImageDataWriter()
if fast:
w.SetDataModeToAppend()
w.EncodeAppendedDataOff()
else:
w.SetDataModeToAscii()
w.SetFileName(filename)
w.SetInput(spts)
w.Write()
def getthresh(args):
inputfile = args[0]
outputfile = args[1]
sx = args[2]
ex = args[3]
sy = args[4]
ey = args[5]
sz = args[6]
ez = args[7]
dataset = args[8]
comptype = args[9]
print ("Loading file, %s" % inputfile)
#Determine if file is h5 or numpy
if (inputfile.split(".")[1] == "npy"):
rs = timeit.default_timer()
vel = np.load(inputfile)
re = timeit.default_timer()
else:
#read in file
rs = timeit.default_timer()
data_file = h5py.File(inputfile, 'r')
vel = np.array(data_file[dataset])
data_file.close()
re = timeit.default_timer()
cs = timeit.default_timer()
#convert numpy array to vtk
vtkdata = numpy_support.numpy_to_vtk(vel.flat, deep=True, array_type=vtk.VTK_FLOAT)
vtkdata.SetNumberOfComponents(3)
vtkdata.SetName("Velocity")
image = vtk.vtkImageData()
image.GetPointData().SetVectors(vtkdata)
image.SetExtent(sx,ex,sy,ey,sz,ez)
#NOTE: Hardcoding Spacing
image.SetSpacing(.006135923, .006135923, .006135923)
print ("Doing computation")
ce = timeit.default_timer()
vs = timeit.default_timer()
if (comptype == "v"):
vorticity = vtk.vtkCellDerivatives()
vorticity.SetVectorModeToComputeVorticity()
vorticity.SetTensorModeToPassTensors()
vorticity.SetInputData(image)
vorticity.Update()
elif (comptype == "q"):
vorticity = vtk.vtkGradientFilter()
vorticity.SetInputData(image)
vorticity.SetInputScalars(image.FIELD_ASSOCIATION_POINTS,"Velocity")
vorticity.ComputeQCriterionOn()
vorticity.SetComputeGradient(0)
vorticity.Update()
ve = timeit.default_timer()
#Generate contour for comparison
c = vtk.vtkContourFilter()
c.SetValue(0,1128)
if (comptype == "q"):
image.GetPointData().SetScalars(vorticity.GetOutput().GetPointData().GetVectors("Q-criterion"))
else:
image.GetPointData().SetScalars(vorticity.GetOutput().GetPointData().GetVectors())
c.SetInputData(image)
c.Update()
w = vtk.vtkXMLPolyDataWriter()
w.SetEncodeAppendedData(0) #turn of base 64 encoding for fast write
w.SetFileName("contour.vtp")
w.SetInputData(c.GetOutput())
ws = timeit.default_timer()
w.Write()
ms = timeit.default_timer()
if (comptype == "v"):
mag = vtk.vtkImageMagnitude()
cp = vtk.vtkCellDataToPointData()
cp.SetInputData(vorticity.GetOutput())
cp.Update()
image.GetPointData().SetScalars(cp.GetOutput().GetPointData().GetVectors())
mag.SetInputData(image)
mag.Update()
m = mag.GetOutput()
m.GetPointData().RemoveArray("Velocity")
else:
image.GetPointData().SetScalars(vorticity.GetOutput().GetPointData().GetVectors("Q-criterion"))
me = timeit.default_timer()
print ("Thresholding.")
ts = timeit.default_timer()
t = vtk.vtkImageThreshold()
#t = vtk.vtkThreshold() #sparse representation
if (comptype == "q"):
t.SetInputData(image)
t.ThresholdByUpper(783.3) #.25*67.17^2 = 1127
#t.SetInputArrayToProcess(0,0,0, vorticity.GetOutput().FIELD_ASSOCIATION_POINTS, "Q-criterion")
print("q criterion")
else:
t.SetInputData(m)
t.SetInputArrayToProcess(0,0,0, mag.GetOutput().FIELD_ASSOCIATION_POINTS, "Magnitude")
t.ThresholdByUpper(44.79) #44.79)
#Set values in range to 1 and values out of range to 0
t.SetInValue(1)
t.SetOutValue(0)
#t.ReplaceInOn()
#t.ReplaceOutOn()
print("Update thresh")
t.Update()
#wt = vtk.vtkXMLImageDataWriter()
#wt.SetInputData(t.GetOutput())
#wt.SetFileName("thresh.vti")
#wt.Write()
d = vtk.vtkImageDilateErode3D()
d.SetInputData(t.GetOutput())
d.SetKernelSize(3,3,3)
d.SetDilateValue(1)
d.SetErodeValue(0)
print ("Update dilate")
d.Update()
iis = vtk.vtkImageToImageStencil()
iis.SetInputData(d.GetOutput())
iis.ThresholdByUpper(1)
stencil = vtk.vtkImageStencil()
stencil.SetInputConnection(2, iis.GetOutputPort())
stencil.SetBackgroundValue(0)
#image.GetPointData().RemoveArray("Vorticity")
#Set scalars to velocity so it can be cut by the stencil
image.GetPointData().SetScalars(image.GetPointData().GetVectors())
#if (comptype == "q"): #Use this to get just q-criterion data instead of velocity data. Do we need both?
# image.GetPointData().SetScalars(vorticity.GetOutput().GetPointData().GetScalars("Q-criterion"))
stencil.SetInputData(image)
print ("Update stencil")
stencil.Update()
te = timeit.default_timer()
print("Setting up write")
ws = timeit.default_timer()
#Make velocity a vector again
velarray = stencil.GetOutput().GetPointData().GetScalars()
image.GetPointData().RemoveArray("Velocity")
image.GetPointData().SetVectors(velarray)
w = vtk.vtkXMLImageDataWriter()
w.SetCompressorTypeToZLib()
#w.SetCompressorTypeToNone() Need to figure out why this fails.
w.SetEncodeAppendedData(0) #turn of base 64 encoding for fast write
w.SetFileName(outputfile)
w.SetInputData(image)
if (0):
w.SetCompressorTypeToZfp()
w.GetCompressor().SetNx(ex-sx+1)
w.GetCompressor().SetNy(ey-sy+1)
w.GetCompressor().SetNz(ez-sz+1)
w.GetCompressor().SetTolerance(1e-1)
w.GetCompressor().SetNumComponents(3)
w.Write()
we = timeit.default_timer()
print("Results:")
print("Read time: %s" % str(re-rs))
print ("Convert to vtk: %s" % str(ce-cs))
if (comptype == "q"):
print ("Q Computation: %s" % str(ve-vs))
print ("Q Magnitude: %s" % str(me-ms))
else:
print ("Vorticity Computation: %s" % str(ve-vs))
print ("Vorticity Magnitude: %s" % str(me-ms))
print ("Threshold: %s" % str(te-ts))
print ("Write %s" % str(we-ws))
print ("Total time: %s" % str(we-rs))
#!/usr/bin/env python import os import vtk from vtk.util.misc import vtkGetDataRoot from vtk.util.misc import vtkGetTempDir VTK_DATA_ROOT = vtkGetDataRoot() VTK_TEMP_DIR = vtkGetTempDir() rt = vtk.vtkRTAnalyticSource() rt.Update() inp = rt.GetOutput() inp.GetInformation().Set(vtk.vtkDataObject.DATA_TIME_STEP(), 11) file_root = VTK_TEMP_DIR + '/testxmlfield' file0 = file_root + ".vti" w = vtk.vtkXMLImageDataWriter() w.SetInputData(inp) w.SetFileName(file0) w.Write() r = vtk.vtkXMLImageDataReader() r.SetFileName(file0) r.UpdateInformation() assert(r.GetOutputInformation(0).Get(vtk.vtkStreamingDemandDrivenPipeline.TIME_STEPS(), 0) == 11.0) os.remove(file0)
def vortvelvolumei(args):
#inputfile, outputfile, sx, ex, sy, ey, sz, ez, dataset):
p = args[0]
cubenum = args[1]
print("Cube", cubenum)
#Check for additonal parameters
if (p["param1"] != ''):
comptype = p["param1"]
else:
comptype = "q" #Default to q criterion
if (p["param2"] != ''):
thresh = float(p["param2"])
else:
thresh = 783.3 #Default for q threshold on isotropic data
inputfile = p["inputfile"] +str(cubenum) + ".npy"
outputfile = p["outputfile"] + str(cubenum) + ".vti" #always VTK Image Data for this.
sx = p["sx"]
sy = p["sy"]
sz = p["sz"]
ex = p["ex"]
ey = p["ey"]
ez = p["ez"]
print ("Loading file, %s" % inputfile)
#Determine if file is h5 or numpy
rs = timeit.default_timer()
vel = np.load(inputfile)
print ("File Loaded")
re = timeit.default_timer()
#convert numpy array to vtk
cs = timeit.default_timer()
#convert numpy array to vtk
vtkdata = numpy_support.numpy_to_vtk(vel.flat, deep=True, array_type=vtk.VTK_FLOAT)
vtkdata.SetNumberOfComponents(3)
vtkdata.SetName("Velocity")
image = vtk.vtkImageData()
image.GetPointData().SetVectors(vtkdata)
image.SetExtent(sx,ex,sy,ey,sz,ez)
#NOTE: Hardcoding Spacing
image.SetSpacing(.006135923, .006135923, .006135923)
ce = timeit.default_timer()
vs = timeit.default_timer()
print ("Beginning computation: " + comptype)
if (comptype == "v"):
vorticity = vtk.vtkCellDerivatives()
vorticity.SetVectorModeToComputeVorticity()
vorticity.SetTensorModeToPassTensors()
vorticity.SetInputData(image)
vorticity.Update()
elif (comptype == "q"):
vorticity = vtk.vtkGradientFilter()
vorticity.SetInputData(image)
vorticity.SetInputScalars(image.FIELD_ASSOCIATION_POINTS,"Velocity")
vorticity.ComputeQCriterionOn()
vorticity.SetComputeGradient(0)
vorticity.Update()
ve = timeit.default_timer()
print("Initial calculation done")
ms = timeit.default_timer()
if (comptype == "v"):
mag = vtk.vtkImageMagnitude()
cp = vtk.vtkCellDataToPointData()
cp.SetInputData(vorticity.GetOutput())
cp.Update()
image.GetPointData().SetScalars(cp.GetOutput().GetPointData().GetVectors())
mag.SetInputData(image)
mag.Update()
m = mag.GetOutput()
m.GetPointData().RemoveArray("Velocity")
else:
image.GetPointData().SetScalars(vorticity.GetOutput().GetPointData().GetVectors("Q-criterion"))
me = timeit.default_timer()
print("Generating screenshot")
c = vtk.vtkContourFilter()
c.SetValue(0,thresh)
c.SetInputData(image)
c.Update()
contour = c.GetOutput()
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputData(contour)
mapper.ScalarVisibilityOn()
mapper.SetScalarRange(-1,1)
mapper.SetScalarModeToUsePointFieldData()
mapper.ColorByArrayComponent("Velocity", 0)
actor = vtk.vtkActor()
actor.SetMapper(mapper)
ren = vtk.vtkRenderer()
ren.AddActor(actor)
ren.SetBackground(1,1,1)
camera = vtk.vtkCamera()
ren.SetActiveCamera(camera)
ren.ResetCamera()
camera.Zoom(1.5) #This reduces the whitespace around the image
renWin = vtk.vtkRenderWindow()
renWin.SetSize(1024,1024)
renWin.AddRenderer(ren)
renWin.SetOffScreenRendering(1)
windowToImageFilter = vtk.vtkWindowToImageFilter()
windowToImageFilter.SetInput(renWin)
windowToImageFilter.Update()
w = vtk.vtkPNGWriter()
pngfilename = p["outputfile"] + str(cubenum) + ".png"
w.SetFileName(pngfilename)
w.SetInputConnection(windowToImageFilter.GetOutputPort())
w.Write()
#Shift camera angle and take snapshots around the cube.
for aznum in range(4):
camera.Azimuth(90)
windowToImageFilter = vtk.vtkWindowToImageFilter()
windowToImageFilter.SetInput(renWin)
windowToImageFilter.Update()
pngfilename = p["outputfile"] + str(cubenum) + "-r" + str(aznum)+ ".png"
w.SetFileName(pngfilename)
w.SetInputConnection(windowToImageFilter.GetOutputPort())
w.Write()
camera.Elevation(90) #Rotate camera to top
windowToImageFilter = vtk.vtkWindowToImageFilter()
windowToImageFilter.SetInput(renWin)
windowToImageFilter.Update()
pngfilename = p["outputfile"] + str(cubenum) + "-t1.png"
w.SetFileName(pngfilename)
w.SetInputConnection(windowToImageFilter.GetOutputPort())
w.Write()
camera.Elevation(180) #Rotate camera to bottom
windowToImageFilter = vtk.vtkWindowToImageFilter()
windowToImageFilter.SetInput(renWin)
windowToImageFilter.Update()
pngfilename = p["outputfile"] + str(cubenum) + "-b1.png"
w.SetFileName(pngfilename)
w.SetInputConnection(windowToImageFilter.GetOutputPort())
w.Write()
print ("Thresholding.")
ts = timeit.default_timer()
t = vtk.vtkImageThreshold() #Dense represenation (0's included, structured grid)
#t = vtk.vtkThreshold() #sparse representation
if (comptype == "q"):
t.SetInputData(image)
t.ThresholdByUpper(thresh) #.25*67.17^2 = 1127
#t.SetInputArrayToProcess(0,0,0, vorticity.GetOutput().FIELD_ASSOCIATION_POINTS, "Q-criterion")
print("q criterion")
else:
t.SetInputData(m)
t.SetInputArrayToProcess(0,0,0, mag.GetOutput().FIELD_ASSOCIATION_POINTS, "Magnitude")
t.ThresholdByUpper(thresh) #44.79)
#Set values in range to 1 and values out of range to 0
t.SetInValue(1)
t.SetOutValue(0)
#t.ReplaceInOn()
#t.ReplaceOutOn()
print("Update thresh")
t.Update()
#wt = vtk.vtkXMLImageDataWriter()
#wt.SetInputData(t.GetOutput())
#wt.SetFileName("thresh.vti")
#wt.Write()
d = vtk.vtkImageDilateErode3D()
d.SetInputData(t.GetOutput())
d.SetKernelSize(4,4,4)
d.SetDilateValue(1)
d.SetErodeValue(0)
print ("Update dilate")
d.Update()
iis = vtk.vtkImageToImageStencil()
iis.SetInputData(d.GetOutput())
iis.ThresholdByUpper(1)
stencil = vtk.vtkImageStencil()
stencil.SetInputConnection(2, iis.GetOutputPort())
stencil.SetBackgroundValue(0)
#image.GetPointData().RemoveArray("Vorticity")
#Set scalars to velocity so it can be cut by the stencil
image.GetPointData().SetScalars(image.GetPointData().GetVectors())
#if (comptype == "q"): #Use this to get just q-criterion data instead of velocity data. Do we need both?
# image.GetPointData().SetScalars(vorticity.GetOutput().GetPointData().GetScalars("Q-criterion"))
stencil.SetInputData(image)
print ("Update stencil")
stencil.Update()
te = timeit.default_timer()
print("Setting up write")
ws = timeit.default_timer()
#Make velocity a vector again
velarray = stencil.GetOutput().GetPointData().GetScalars()
image.GetPointData().RemoveArray("Velocity")
image.GetPointData().SetVectors(velarray)
w = vtk.vtkXMLImageDataWriter()
w.SetCompressorTypeToZLib()
#w.SetCompressorTypeToNone() Need to figure out why this fails.
w.SetEncodeAppendedData(0) #turn of base 64 encoding for fast write
w.SetFileName(outputfile)
w.SetInputData(image)
if (0):
w.SetCompressorTypeToZfp()
w.GetCompressor().SetNx(ex-sx+1)
w.GetCompressor().SetNy(ey-sy+1)
w.GetCompressor().SetNz(ez-sz+1)
w.GetCompressor().SetTolerance(1e-2)
w.GetCompressor().SetNumComponents(3)
#result = w.Write()
result = 1 #don't write for benchmarking
we = timeit.default_timer()
print("Results:")
print("Read time: %s" % str(re-rs))
print ("Convert to vtk: %s" % str(ce-cs))
if (comptype == "q"):
print ("Q Computation: %s" % str(ve-vs))
print ("Q Magnitude: %s" % str(me-ms))
else:
print ("Vorticity Computation: %s" % str(ve-vs))
print ("Vorticity Magnitude: %s" % str(me-ms))
print ("Threshold: %s" % str(te-ts))
print ("Write %s" % str(we-ws))
print ("Total time: %s" % str(we-rs))
if (result):
p["message"] = "Success"
p["computetime"] = str(we-rs)
return p #return the packet
def writevti(image, path):
"""Write VTI-files, i.e. images in VTK XML format."""
writer = vtk.vtkXMLImageDataWriter()
writer.SetInput(image)
writer.SetFileName(path)
writer.Write()
