/usr/share/pyshared/pyvtk/PolyData.py is in python-pyvtk 0.4.74-3build1.
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 | #!/usr/bin/env python
"""
PolyData
"""
"""
Copyright 2001 Pearu Peterson all rights reserved,
Pearu Peterson <pearu@ioc.ee>
Permission to use, modify, and distribute this software is given under the
terms of the LGPL. See http://www.fsf.org
NO WARRANTY IS EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
$Revision: 1.6 $
$Date: 2002-11-19 20:40:11 $
Pearu Peterson
"""
import DataSet
import common
class PolyData(DataSet.DataSet):
"""
Usage:
PolyData(<sequence of 3-tuples of points>,
vertices = <sequence of sequences>
lines = <sequence of sequences>,
polygons = <sequence of sequences>
triangle_strips = <sequence of sequences>,
)
Attributes:
points
vertices
lines
polygons
triangle_strips
Public methods:
get_size()
get_cell_size()
to_string(format = 'ascii')
get_points()
<DataSetAttr class>(...)
"""
def __init__(self,points,
vertices=[],lines=[],polygons=[],triangle_strips=[]):
self.points = self.get_3_tuple_list(points,(0,0,0))
self.vertices = self.get_seq_seq(vertices,[])
self.lines = self.get_seq_seq(lines,[])
self.polygons = self.get_seq_seq(polygons,[])
self.triangle_strips = self.get_seq_seq(triangle_strips,[])
sz = len(self.points)
for k in ['vertices','lines','polygons','triangle_strips']:
if self._check_int_seq(getattr(self,k),sz):
raise ValueError,'%s must be (seq of seq|seq) integers less than %s'%(k,sz)
def to_string(self, format='ascii'):
t = self.get_datatype(self.points)
ret = ['DATASET POLYDATA',
'POINTS %s %s'%(self.get_size(),t),
self.seq_to_string(self.points,format,t)]
for k in ['vertices','lines','polygons','triangle_strips']:
kv = getattr(self,k)
if kv==[] or kv[0]==[]: continue
sz = self._get_nof_objs(kv)+len(kv)
ret += ['%s %s %s'%(k.upper(),len(kv),sz),
self.seq_to_string([[len(v)]+list(v) for v in kv],format,'int')]
return '\n'.join(ret)
def get_cell_size(self):
sz = 0
for k in ['vertices','lines','polygons','triangle_strips']:
kv = getattr(self,k)
if kv==[] or kv[0]==[]: continue
sz += len(kv)
return sz
def get_points(self):
return self.points
def polydata_fromfile(f,self):
"""Use VtkData(<filename>)."""
points = []
vertices = []
lines = []
polygons = []
triangle_strips = []
l = common._getline(f)
k,n,datatype = [s.strip().lower() for s in l.split(' ')]
if k!='points':
raise ValueError, 'expected points but got %s'%(`k`)
n = eval(n)
assert datatype in ['bit','unsigned_char','char','unsigned_short','short','unsigned_int','int','unsigned_long','long','float','double'],`datatype`
self.message('\tgetting %s points'%n)
while len(points) < 3*n:
l = common._getline(f)
points += map(eval,l.split(' '))
assert len(points)==3*n
while 1:
l = common._getline(f)
if l is None:
break
sl = l.split(' ')
k = sl[0].strip().lower()
if k not in ['vertices','lines','polygons','triangle_strips']:
break
assert len(sl)==3
n,size = map(eval,[sl[1],sl[2]])
lst = []
while len(lst) < size:
l = common._getline(f)
lst += map(eval,l.split(' '))
assert len(lst)==size
lst2 = []
j = 0
for i in range(n):
lst2.append(lst[j+1:j+lst[j]+1])
j += lst[j]+1
exec '%s = lst2'%k
return PolyData(points,vertices,lines,polygons,triangle_strips),l
if __name__ == "__main__":
print PolyData([[1,2],[2,4],4,5.4],[[1],[0]],[],[1,2,3])
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