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#!/usr/bin/env python
#/*******************************************************************/
#/* XDMF */
#/* eXtensible Data Model and Format */
#/* */
#/* Id : $Id: ViewAll.py,v 1.2 2009-01-23 20:48:54 clarke Exp $ */
#/* Date : $Date: 2009-01-23 20:48:54 $ */
#/* Version : $Revision: 1.2 $ */
#/* */
#/* Author: */
#/* Jerry A. Clarke */
#/* clarke@arl.army.mil */
#/* US Army Research Laboratory */
#/* Aberdeen Proving Ground, MD */
#/* */
#/* Copyright @ 2002 US Army Research Laboratory */
#/* All Rights Reserved */
#/* See Copyright.txt or http://www.arl.hpc.mil/ice for details */
#/* */
#/* This software is distributed WITHOUT ANY WARRANTY; without */
#/* even the implied warranty of MERCHANTABILITY or FITNESS */
#/* FOR A PARTICULAR PURPOSE. See the above copyright notice */
#/* for more information. */
#/* */
#/*******************************************************************/
from __future__ import print_function
import getopt
import sys
import string
print ('Loading Xdmf')
import Xdmf
print ('Loading vtk')
from vtk import *
from libvtkXdmfPython import *
class ViewAll:
def __init__( self ):
self.StartGrid = 0
self.EndGrid = -1
self.Attributes = []
def FindGrids( self, FileName ) :
DOM = Xdmf.XdmfDOM()
DOM.SetInputFileName( FileName )
DOM.Parse()
self.NumberOfGrids = DOM.FindNumberOfElements( 'Grid' )
def View ( self, FileName ):
print ('Parsing ' + FileName)
if( self.EndGrid <= 0 ) :
self.FindGrids( FileName )
self.EndGrid = self.NumberOfGrids - 1
Ren = vtkRenderer()
for GridIndex in range( self.StartGrid, self.EndGrid + 1 ) :
Reader = vtkXdmfReader()
# The XML File is Input
Reader.SetInputFileName( FileName )
Reader.SetGridIndex( GridIndex )
# Parse the XML but don't
# yet read the Heavy Data (HDF5)
# This is necessary so that vtk knows
# the topology of the data since it
# could be structured or unstructured
Reader.Initialize()
# Read XDMF Attributes
Reader.SetAllAttributeStatusOff()
Index = GridIndex - self.StartGrid
if Index < len( self.Attributes ) :
AttrIndex = self.Attributes[ Index ]
print ('Setting Attribute %d On' % AttrIndex)
Reader.SetAttributeStatusOn( AttrIndex )
GeometryFilter = vtkGeometryFilter()
GeometryFilter.SetInput( Reader.GetOutput() )
# Reader.Update() Triggers the Reading of HDF5
# this is triggered by the Viz Pipeline
GeometryFilter.Update()
# We can access the underlying XdmfGrid
# if necessary
Gridptr = Reader.GetXdmfGridHandle()
Grid = Xdmf.HandleToXdmfGrid( Gridptr )
print ('Grid %d has %d ' % (GridIndex, Grid.GetNumberOfElements()) + \
Grid.GetTopologyTypeAsString())
Nattr = Grid.GetNumberOfAttributes()
print ('<XdmfGrid> has %d Attributes' % Nattr)
for i in range( Nattr ) :
Attribute = Grid.GetAttribute( i )
print ('\tAttribute #%d' % i)
print ('\t\tName: ' + Attribute.GetName())
print ('\t\tCenter: ' + Attribute.GetAttributeCenterAsString())
print ('\t\tType: ' + Attribute.GetAttributeTypeAsString())
# List All of the Available Arrays
PointData = Reader.GetOutput().GetPointData()
for i in range( PointData.GetNumberOfArrays() ) :
Array = PointData.GetArray( i )
print ('\tArray #%d ' % i)
print ('\t\tName: ' + Array.GetName())
Min, Max = Array.GetRange()
print ('\t\tRange: %f -> %f' % (Min, Max))
# Use the Third Attribute (Z Coordinate) for Color
# GeometryFilter.GetInput().GetPointData().SetActiveScalars('Z Coordinate')
Mapper = vtkPolyDataMapper()
Mapper.SetInput( GeometryFilter.GetOutput() )
ScalarRange = GeometryFilter.GetOutput().GetScalarRange()
Mapper.SetScalarRange( ScalarRange )
# Blue to Red
Mapper.GetLookupTable().SetHueRange( .667, 0.0 )
Actor = vtkActor()
Actor.SetMapper( Mapper )
Actor.GetProperty().SetRepresentationToWireframe()
Ren.AddActor( Actor )
Ren.SetBackground(.2, .2, .2)
RenWin = vtkRenderWindow()
RenWin.SetSize(500,500)
RenWin.AddRenderer(Ren)
iRen = vtkRenderWindowInteractor()
iRen.SetRenderWindow(RenWin)
# Interact with the Mouse and Keyboard
iRen.Initialize()
iRen.Start()
def usage (self) :
print ('Options : --start=Grid# --end=Grid# --attribute=Index --attribute=Index ... File.xmf')
sys.exit(0)
def Options( self, opts ) :
argc = len( opts )
print ('%d Args = ' % argc + str( opts ))
try :
opts, args = getopt.getopt(opts,
"aseh:",
["help", "start=", "end=", "attribute=" ])
except getopt.GetoptError:
self.usage()
sys.exit(2)
print ('opts = ' + str( opts ))
print ('args = ' + str( args ))
output = None
for o, a in opts:
if o in ("-h", "--help"):
self.usage()
sys.exit()
if o in ("-s", "--start"):
self.StartGrid = int(a)
if o in ("-e", "--end"):
self.EndGrid = int(a)
if o in ("-a", "--attribute"):
print ('Appending ' + a)
self.Attributes.append( int(a) )
print ('StartGrid %d' % self.StartGrid)
print ('EndGrid %d' % self.EndGrid)
print ('Attributes = ' + str( self.Attributes ))
if __name__ == '__main__' :
argc = len( sys.argv )
viewer = ViewAll()
viewer.Options( sys.argv[1:] )
viewer.View( sys.argv[ argc - 1 ] )
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