/usr/lib/python2.7/dist-packages/tvtk/common.py is in mayavi2 4.5.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | """Common functions and classes.
"""
# Author: Prabhu Ramachandran <prabhu_r@users.sf.net>
# Copyright (c) 2005-2015, Enthought, Inc.
# License: BSD Style.
import os
import string
import sys
import re
import vtk
vtk_major_version = vtk.vtkVersion.GetVTKMajorVersion()
vtk_minor_version = vtk.vtkVersion.GetVTKMinorVersion()
######################################################################
# Utility functions.
######################################################################
def get_tvtk_name(vtk_name):
"""Converts a VTK class name to a TVTK class name.
This function additionally converts any leading digits into a
suitable string.
For example:
>>> get_tvtk_name('vtk3DSImporter')
'ThreeDSImporter'
>>> get_tvtk_name('vtkXMLDataReader')
'XMLDataReader'
"""
if vtk_name[:3] == 'vtk':
name = vtk_name[3:]
dig2name = {'1':'One', '2':'Two', '3':'Three', '4':'Four',
'5':'Five', '6': 'Six', '7':'Seven', '8':'Eight',
'9': 'Nine', '0':'Zero'}
if name[0] in string.digits:
return dig2name[name[0]] + name[1:]
else:
return name
else:
return vtk_name
def is_old_pipeline():
return vtk_major_version < 6
def is_version_7():
return vtk_major_version > 6
def is_version_62():
return vtk_major_version == 6 and vtk_minor_version == 2
def is_version_58():
return vtk_major_version == 5 and vtk_minor_version == 8
def configure_connection(obj, inp):
""" Configure topology for vtk pipeline obj."""
if hasattr(inp, 'output_port'):
obj.input_connection = inp.output_port
elif inp.has_output_port():
obj.input_connection = inp.get_output_object()
else:
configure_input(obj, inp.outputs[0])
def configure_input_data(obj, data):
""" Configure the input data for vtk pipeline object obj."""
if is_old_pipeline():
obj.input = data
else:
obj.set_input_data(data)
def configure_port_input_data(obj, port, data):
""" Configure the input data for vtk pipeline object obj at port."""
if is_old_pipeline():
obj.set_input(port, data)
else:
obj.set_input_data(port, data)
def configure_input(inp, op):
""" Configure the inp using op."""
if is_old_pipeline():
if op.is_a('vtkDataSet'):
inp.input = op
else:
inp.input = op.output
else:
if hasattr(op, 'output_port'):
if hasattr(inp, 'input_connection'):
inp.input_connection = op.output_port
elif hasattr(inp, 'set_input_connection'):
inp.set_input_connection(op.output_port)
elif op.is_a('vtkAlgorithmOutput'):
inp.input_connection = op
elif op.is_a('vtkDataSet'):
inp.set_input_data(op)
else:
raise ValueError('Unknown input type for object %s'%op)
def configure_outputs(obj, tvtk_obj):
if is_old_pipeline():
obj.outputs = [tvtk_obj.output]
else:
if hasattr(tvtk_obj, 'output_port'):
obj.outputs = [tvtk_obj.output_port]
else:
obj.outputs = [tvtk_obj]
def configure_source_data(obj, data):
""" Configure the source data for vtk pipeline object obj."""
if is_old_pipeline():
obj.source = data
else:
if data.is_a('vtkAlgorithmOutput'):
obj.set_source_connection(data)
elif hasattr(data, 'output_port'):
obj.set_source_connection(data.output_port)
else:
obj.set_source_data(data)
class _Camel2Enthought:
"""Simple functor class to convert names from CamelCase to
Enthought compatible names.
For example::
>>> camel2enthought = _Camel2Enthought()
>>> camel2enthought('XMLActor2DToSGML')
'xml_actor2d_to_sgml'
"""
def __init__(self):
self.patn = re.compile(r'([A-Z0-9]+)([a-z0-9]*)')
self.nd_patn = re.compile(r'(\D[123])_D')
def __call__(self, name):
ret = self.patn.sub(self._repl, name)
ret = self.nd_patn.sub(r'\1d', ret)
if ret[0] == '_':
ret = ret[1:]
return ret.lower()
def _repl(self, m):
g1 = m.group(1)
g2 = m.group(2)
if len(g1) > 1:
if g2:
return '_' + g1[:-1] + '_' + g1[-1] + g2
else:
return '_' + g1
else:
return '_' + g1 + g2
# Instantiate a converter.
camel2enthought = _Camel2Enthought()
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