copy of addGridData W/O functionality for meshes
This commit is contained in:
Martin Diehl
parent
48c21045d7
commit
70cb1f0764
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#!/usr/bin/env python3
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import os
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from optparse import OptionParser
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from collections import defaultdict
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import vtk
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from vtk.util import numpy_support
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import damask
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scriptName = os.path.splitext(os.path.basename(__file__))[0]
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scriptID = ' '.join([scriptName,damask.version])
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# --------------------------------------------------------------------
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# MAIN
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# --------------------------------------------------------------------
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msg = "Add scalars, vectors, and/or an RGB tuple from"
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msg += "an ASCIItable to existing VTK rectilinear grid (.vtr/.vtk)."
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parser = OptionParser(option_class=damask.extendableOption,
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usage='%prog options [file[s]]',
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description = msg,
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version = scriptID)
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parser.add_option( '--vtk',
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dest = 'vtk',
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type = 'string', metavar = 'string',
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help = 'VTK file name')
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parser.add_option('-r', '--render',
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dest = 'render',
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action = 'store_true',
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help = 'open output in VTK render window')
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parser.add_option('-d', '--data',
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dest = 'data',
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action = 'extend', metavar = '<string LIST>',
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help = 'scalar/vector value(s) label(s)')
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parser.add_option('-t', '--tensor',
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dest = 'tensor',
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action = 'extend', metavar = '<string LIST>',
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help = 'tensor (3x3) value label(s)')
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parser.add_option('-c', '--color',
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dest = 'color',
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action = 'extend', metavar = '<string LIST>',
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help = 'RGB color tuple label')
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parser.set_defaults(data = [],
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tensor = [],
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color = [],
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render = False,
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)
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(options, filenames) = parser.parse_args()
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if not options.vtk: parser.error('no VTK file specified.')
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if not os.path.exists(options.vtk): parser.error('VTK file does not exist.')
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vtk_file,vtk_ext = os.path.splitext(options.vtk)
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if vtk_ext == '.vtr':
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reader = vtk.vtkXMLRectilinearGridReader()
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reader.SetFileName(options.vtk)
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reader.Update()
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rGrid = reader.GetOutput()
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elif vtk_ext == '.vtk':
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reader = vtk.vtkGenericDataObjectReader()
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reader.SetFileName(options.vtk)
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reader.Update()
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rGrid = reader.GetRectilinearGridOutput()
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else:
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parser.error('unsupported VTK file type extension.')
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Npoints = rGrid.GetNumberOfPoints()
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Ncells = rGrid.GetNumberOfCells()
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damask.util.croak('{}: {} points and {} cells...'.format(options.vtk,Npoints,Ncells))
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# --- loop over input files -------------------------------------------------------------------------
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if filenames == []: filenames = [None]
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for name in filenames:
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try: table = damask.ASCIItable(name = name,
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buffered = False,
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readonly = True)
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except: continue
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damask.util.report(scriptName, name)
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# --- interpret header ----------------------------------------------------------------------------
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table.head_read()
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remarks = []
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errors = []
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VTKarray = {}
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active = defaultdict(list)
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for datatype,dimension,label in [['data',0,options.data],
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['tensor',9,options.tensor],
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['color' ,3,options.color],
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]:
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for i,dim in enumerate(table.label_dimension(label)):
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me = label[i]
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if dim == -1: remarks.append('{} "{}" not found...'.format(datatype,me))
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elif dimension > 0 \
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and dim != dimension: remarks.append('"{}" not of dimension {}...'.format(me,dimension))
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else:
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remarks.append('adding {}{} "{}"...'.format(datatype if dim > 1 else 'scalar',
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'' if dimension > 0 or dim == 1 else '[{}]'.format(dim),
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me))
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active[datatype].append(me)
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if remarks != []: damask.util.croak(remarks)
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if errors != []:
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damask.util.croak(errors)
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table.close(dismiss = True)
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continue
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# ------------------------------------------ process data ---------------------------------------
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table.data_readArray([item for sublist in active.values() for item in sublist]) # read all requested data
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for datatype,labels in active.items(): # loop over scalar,color
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for me in labels: # loop over all requested items
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VTKtype = vtk.VTK_DOUBLE
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VTKdata = table.data[:, table.label_indexrange(me)].copy() # copy to force contiguous layout
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if datatype == 'color':
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VTKtype = vtk.VTK_UNSIGNED_CHAR
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VTKdata = (VTKdata*255).astype(int) # translate to 0..255 UCHAR
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elif datatype == 'tensor':
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VTKdata[:,1] = VTKdata[:,3] = 0.5*(VTKdata[:,1]+VTKdata[:,3])
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VTKdata[:,2] = VTKdata[:,6] = 0.5*(VTKdata[:,2]+VTKdata[:,6])
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VTKdata[:,5] = VTKdata[:,7] = 0.5*(VTKdata[:,5]+VTKdata[:,7])
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VTKarray[me] = numpy_support.numpy_to_vtk(num_array=VTKdata,deep=True,array_type=VTKtype)
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VTKarray[me].SetName(me)
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table.close() # close input ASCII table
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# ------------------------------------------ add data ---------------------------------------
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if len(table.data) == Npoints: mode = 'point'
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elif len(table.data) == Ncells: mode = 'cell'
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else:
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damask.util.croak('data count is incompatible with grid...')
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continue
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damask.util.croak('{} mode...'.format(mode))
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for datatype,labels in active.items(): # loop over scalar,color
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if datatype == 'color':
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if mode == 'cell': rGrid.GetCellData().SetScalars(VTKarray[active['color'][0]])
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elif mode == 'point': rGrid.GetPointData().SetScalars(VTKarray[active['color'][0]])
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for me in labels: # loop over all requested items
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if mode == 'cell': rGrid.GetCellData().AddArray(VTKarray[me])
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elif mode == 'point': rGrid.GetPointData().AddArray(VTKarray[me])
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rGrid.Modified()
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# ------------------------------------------ output result ---------------------------------------
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writer = vtk.vtkXMLRectilinearGridWriter()
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writer.SetDataModeToBinary()
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writer.SetCompressorTypeToZLib()
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writer.SetFileName(vtk_file+'.'+writer.GetDefaultFileExtension())
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writer.SetInputData(rGrid)
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writer.Write()
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# ------------------------------------------ render result ---------------------------------------
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if options.render:
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mapper = vtk.vtkDataSetMapper()
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mapper.SetInputData(rGrid)
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actor = vtk.vtkActor()
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actor.SetMapper(mapper)
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# Create the graphics structure. The renderer renders into the
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# render window. The render window interactor captures mouse events
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# and will perform appropriate camera or actor manipulation
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# depending on the nature of the events.
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ren = vtk.vtkRenderer()
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renWin = vtk.vtkRenderWindow()
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renWin.AddRenderer(ren)
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ren.AddActor(actor)
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ren.SetBackground(1, 1, 1)
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renWin.SetSize(200, 200)
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iren = vtk.vtkRenderWindowInteractor()
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iren.SetRenderWindow(renWin)
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iren.Initialize()
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renWin.Render()
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iren.Start()
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