This file is indexed.

/usr/lib/python2.7/dist-packages/biggles/contour.py is in python-pybiggles 1.6.6-3.

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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
#
# $Id: contour.py,v 1.23 2008/01/29 04:08:31 mrnolta Exp $
#
# Copyright (C) 2001 Mike Nolta <mrnolta@users.sourceforge.net>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public
# License along with this program; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA  02111-1307, USA.
#

from biggles import \
	_series, _message, \
	_LineComponent,  _PathObject, _PlotComponent, BigglesError
from geometry import *
import _biggles

import numpy

def _span( a, b, n ):
	return a + float(b - a)*numpy.arange( 0, n, 1, numpy.Float )/(n-1)

def _pop2( x, i, j ):
	if i < j:
		b = x.pop( j )
		a = x.pop( i )
	elif i > j:
		a = x.pop( i )
		b = x.pop( j )
	return a, b

def _unzip( line ):
	x = []
	y = []
	for x0,y0 in line:
		x.append( x0 )
		y.append( y0 )
	return x, y

class Contour( _LineComponent ):

	def __init__( self, x, y, z, z0, **kw ):
		_LineComponent.__init__( self )
		self.kw_init( kw )
		self.x = x
		self.y = y
		self.z = z
		self.z0 = z0

	def limits( self ):
		p = min(self.x), min(self.y)
		q = max(self.x), max(self.y)
		return BoundingBox( p, q )

	def _get_contours( self ):
		segs = _biggles.contour_segments( \
			self.x, self.y, self.z, self.z0 )
		open = [[ segs[0][0], segs[0][1] ]]
		closed = []
		for a,b in segs[1:]:
			xxx = []
			for i in range(len(open)):
				begin = open[i][0]
				end = open[i][-1]
				if a == begin:
					xxx.append( (i,0,b) )
				elif a == end:
					xxx.append( (i,1,b) )
				if b == begin:
					xxx.append( (i,0,a) )
				elif b == end:
					xxx.append( (i,1,a) )
			if len(xxx) == 0:
				open.append( [a,b] )
			elif len(xxx) == 1:
				i,end,pt = xxx[0]
				if end == 0:
					open[i].insert( 0, pt )
				else:
					open[i].append( pt )
			elif len(xxx) == 2:
				i0,end0,pt0 = xxx[0]
				i1,end1,pt1 = xxx[1]
				if i0 == i1:
					# closed
					l0 = open.pop( i0 )
					l0.append( l0[0] )
					closed.append( l0 )
				else:
					l0, l1 = _pop2( open, i0, i1 )
					m = None
					if end0==1 and end1==0:
						m = l0 + l1
					elif  end0==0 and end1==1:
						m = l1 + l0
					elif end0==0 and end1==0:
						l0.reverse()
						m = l0 + l1
					elif end0==1 and end1==1:
						l1.reverse()
						m = l0 + l1
					if m is not None:
					 	open.append( m )
					else:
						_message( "contour: m is None" )
			elif len(xxx) > 2:
				_message( "contour: len(xxx) > 2" )
		return open + closed

	def make( self, context ):
		lines = self._get_contours()
		for line in lines:
			x, y = _unzip( line )
			u, v = context.geom.call_vec( x, y )
			self.add( _PathObject(u, v) )

def _func_color_black( i, n, z0, z_min, z_max ):
	return 0x000000

def _func_linetype_dotneg( i, n, z0, z_min, z_max ):
	if z0 < 0:
		return "dotted"
	return "solid"

def _func_linewidth_placeholder( i, n, z0, z_min, z_max ):
	return 1

class Contours( _PlotComponent ):

	_named_func_color = {
		"black"			: _func_color_black,
	}

	_named_func_linetype = {
		"dotted-negative"	: _func_linetype_dotneg,
	}

	_named_func_linewidth = {
		"placeholder"		: _func_linewidth_placeholder,
	}

	def __init__( self, z, x=None, y=None, zrange=None, **kw ):
		_PlotComponent.__init__( self )
		#apply( self.conf_setattr, ("Contours",), kw )
		self.conf_setattr( "Contours" )
		self.kw_init( kw )
		self.z = z
		self.x = x
		self.y = y
		self.zrange = zrange

	def _get_coords( self ):
		dim = self.z.shape
		x = self.x
		if x is None:
			x = range(dim[0])
		y = self.y
		if y is None:
			y = range(dim[1])
		return x, y, self.z

	def limits( self ):
		x, y, z = self._get_coords()
		return BoundingBox( (min(x),min(y)), (max(x),max(y)) )

	def make( self, context ):
		self.clear()

		x, y, z = self._get_coords()
		limits = self.limits()
		xr = limits.xrange()
		yr = limits.yrange()

		zr = self.zrange
		if zr is None:
			zr = _biggles.range( z )

		levels = self.levels
		if type(levels) == type(0):
			levels = _series( 1, self.levels, \
				float(zr[1]-zr[0])/(self.levels+1), zr[0] )

		colorfunc = self.func_color
		if type(colorfunc) == type(""):
			colorfunc = self._named_func_color[colorfunc]

		linefunc = self.func_linetype
		if type(linefunc) == type(""):
			linefunc = self._named_func_linetype[linefunc]

		widthfunc = self.func_linewidth
		if type(widthfunc) == type(""):
			widthfunc = self._named_func_linewidth[widthfunc]

		nlevels = len(levels)
		for i in range(nlevels):
			kw = {}
			z0 = levels[i]
			args = i, nlevels, z0, zr[0], zr[1]
			if colorfunc is not None:
				color = apply( colorfunc, args )
				if color is not None:
					kw["color"] = color
			if linefunc is not None:
				linetype = apply( linefunc, args )
				if linetype is not None:
					kw["linetype"] = linetype
			if widthfunc is not None:
				linewidth = apply( widthfunc, args )
				if linewidth is not None:
					kw["linewidth"] = linewidth
			c = apply( Contour, (x, y, z, z0), kw )
			self.add( c )

	def make_key( self, bbox ):
		xr = bbox.xrange()
		y = bbox.center()[1]
		p = xr[0], y
		q = xr[1], y
		return apply( _LineObject, (p,q), self.kw_style )