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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtksurfacewriter.py,v $
## Language: Python
## Date: $Date: 2006/07/27 08:27:40 $
## Version: $Revision: 1.13 $
## Copyright (c) Luca Antiga, David Steinman. All rights reserved.
## See LICENCE file 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 notices for more information.
import vtk
import sys
import pypes
vmtksurfacewriter = 'vmtkSurfaceWriter'
class vmtkSurfaceWriter(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Format = ''
self.GuessFormat = 1
self.OutputFileName = ''
self.Surface = None
self.Input = None
self.CellData = 0
self.SetScriptName('vmtksurfacewriter')
self.SetScriptDoc('write surface to disk')
self.SetInputMembers([
['Surface','i','vtkPolyData',1,'','the input surface','vmtksurfacereader'],
['Format','f','str',1,'["vtkxml","vtk","stl","ply","pointdata","tecplot"]','file format'],
['GuessFormat','guessformat','bool',1,'','guess file format from extension'],
['CellData','celldata','bool',1,'','write CellData when using pointdata format'],
['OutputFileName','ofile','str',1,'','output file name'],
['OutputFileName','o','str',1,'','output file name (deprecated: use -ofile)']
])
self.SetOutputMembers([])
def WriteVTKSurfaceFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing VTK surface file.')
writer = vtk.vtkPolyDataWriter()
writer.SetInput(self.Surface)
writer.SetFileName(self.OutputFileName)
writer.Write()
def WriteVTKXMLSurfaceFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing VTK XML surface file.')
writer = vtk.vtkXMLPolyDataWriter()
writer.SetInput(self.Surface)
writer.SetFileName(self.OutputFileName)
#writer.SetDataModeToAscii()
writer.Write()
def WriteSTLSurfaceFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing STL surface file.')
writer = vtk.vtkSTLWriter()
writer.SetInput(self.Surface)
writer.SetFileName(self.OutputFileName)
writer.Write()
def WritePLYSurfaceFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing PLY surface file.')
writer = vtk.vtkPLYWriter()
writer.SetInput(self.Surface)
writer.SetFileName(self.OutputFileName)
writer.Write()
def WritePointDataSurfaceFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing PointData file.')
f=open(self.OutputFileName, 'w')
line = "X Y Z"
arrayNames = []
dataArrays = self.Surface.GetPointData()
if self.CellData:
dataArrays = self.Surface.GetCellData();
for i in range(dataArrays.GetNumberOfArrays()):
array = dataArrays.GetArray(i)
arrayName = array.GetName()
if arrayName == None:
continue
if (arrayName[-1]=='_'):
continue
arrayNames.append(arrayName)
if (array.GetNumberOfComponents() == 1):
line = line + ' ' + arrayName
else:
for j in range(array.GetNumberOfComponents()):
line = line + ' ' + arrayName + str(j)
line = line + '\n'
f.write(line)
numberOfLines = self.Surface.GetNumberOfPoints()
if self.CellData:
numberOfLines = self.Surface.GetNumberOfCells()
for i in range(numberOfLines):
point = None
if not self.CellData:
point = self.Surface.GetPoint(i)
else:
point = self.Surface.GetCell(i).GetPoints().GetPoint(0)
line = str(point[0]) + ' ' + str(point[1]) + ' ' + str(point[2])
for arrayName in arrayNames:
array = dataArrays.GetArray(arrayName)
for j in range(array.GetNumberOfComponents()):
line = line + ' ' + str(array.GetComponent(i,j))
line = line + '\n'
f.write(line)
def WriteTecplotSurfaceFile(self):
if (self.OutputFileName == ''):
self.PrintError('Error: no OutputFileName.')
self.PrintLog('Writing Tecplot file.')
triangleFilter = vtk.vtkTriangleFilter()
triangleFilter.SetInput(self.Surface)
triangleFilter.PassVertsOff()
triangleFilter.PassLinesOff()
triangleFilter.Update()
self.Surface = triangleFilter.GetOutput()
f=open(self.OutputFileName, 'w')
line = "VARIABLES = X,Y,Z"
arrayNames = []
for i in range(self.Surface.GetPointData().GetNumberOfArrays()):
array = self.Surface.GetPointData().GetArray(i)
arrayName = array.GetName()
if arrayName == None:
continue
if (arrayName[-1]=='_'):
continue
arrayNames.append(arrayName)
if (array.GetNumberOfComponents() == 1):
line = line + ',' + arrayName
else:
for j in range(array.GetNumberOfComponents()):
line = line + ',' + arrayName + str(j)
line = line + '\n'
f.write(line)
line = "ZONE " + "N=" + str(self.Surface.GetNumberOfPoints()) + ',' + "E=" + str(self.Surface.GetNumberOfCells()) + ',' + "F=FEPOINT" + ',' + "ET=TRIANGLE" + '\n'
f.write(line)
for i in range(self.Surface.GetNumberOfPoints()):
point = self.Surface.GetPoint(i)
line = str(point[0]) + ' ' + str(point[1]) + ' ' + str(point[2])
for arrayName in arrayNames:
array = self.Surface.GetPointData().GetArray(arrayName)
for j in range(array.GetNumberOfComponents()):
line = line + ' ' + str(array.GetComponent(i,j))
line = line + '\n'
f.write(line)
for i in range(self.Surface.GetNumberOfCells()):
cellPointIds = self.Surface.GetCell(i).GetPointIds()
line = ''
for j in range(cellPointIds.GetNumberOfIds()):
if (j>0):
line = line + ' '
line = line + str(cellPointIds.GetId(j)+1)
line = line + '\n'
f.write(line)
def Execute(self):
if self.Surface == None:
if self.Input == None:
self.PrintError('Error: no Surface.')
self.Surface = self.Input
extensionFormats = {'vtp':'vtkxml',
'vtkxml':'vtkxml',
'vtk':'vtk',
'stl':'stl',
'ply':'ply',
'tec':'tecplot',
'dat':'pointdata'}
if self.OutputFileName == 'BROWSER':
import tkFileDialog
import os.path
initialDir = pypes.pypeScript.lastVisitedPath
self.OutputFileName = tkFileDialog.asksaveasfilename(title="Output surface",initialdir=initialDir)
pypes.pypeScript.lastVisitedPath = os.path.dirname(self.OutputFileName)
if not self.OutputFileName:
self.PrintError('Error: no OutputFileName.')
if self.GuessFormat and self.OutputFileName and not self.Format:
import os.path
extension = os.path.splitext(self.OutputFileName)[1]
if extension:
extension = extension[1:]
if extension in extensionFormats.keys():
self.Format = extensionFormats[extension]
if (self.Format == 'vtk'):
self.WriteVTKSurfaceFile()
elif (self.Format == 'vtkxml'):
self.WriteVTKXMLSurfaceFile()
elif (self.Format == 'stl'):
self.WriteSTLSurfaceFile()
elif (self.Format == 'ply'):
self.WritePLYSurfaceFile()
elif (self.Format == 'pointdata'):
self.WritePointDataSurfaceFile()
elif (self.Format == 'tecplot'):
self.WriteTecplotSurfaceFile()
else:
self.PrintError('Error: unsupported format '+ self.Format + '.')
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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