/[escript]/trunk/escript/test/python/SliceTest.py
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Contents of /trunk/escript/test/python/SliceTest.py

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Revision 613 - (show annotations)
Wed Mar 22 01:12:32 2006 UTC (14 years, 8 months ago) by elspeth
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1
2 """
3
4 Tests various slicing operations on Data.
5
6 the results are compared to reference result. if the relative difference is
7 bigger than tol an exception is raised.
8
9 by Lutz Gross, ACcESS, University of Queensland, Australia, 2003.
10
11 Version $Id$
12
13 """
14
15 __copyright__=""" Copyright (c) 2006 by ACcESS MNRF
16 http://www.access.edu.au
17 Primary Business: Queensland, Australia"""
18 __licence__="""Licensed under the Open Software License version 3.0
19 http://www.opensource.org/licences/osl-3.0.php"""
20
21 import sys
22 import unittest
23 import os
24
25 esys_root=os.getenv('ESYS_ROOT')
26 sys.path.append(esys_root+'/finley/lib')
27 sys.path.append(esys_root+'/escript/lib')
28 sys.path.append(esys_root+'/escript/py_src')
29
30 from escript import *
31 import finley
32 import numarray
33 from util import *
34
35 from numarray import array,Float64,ones,greater
36
37 Tag1=10
38 Tag2=11
39
40 tol=1.E-15
41
42 #
43 # list of arguments: a list item has the form [a0,a1,a2]
44 # what a0 is the default value and a1 is used for tag Tag1
45 # and a2 for Tag2. a0,a1,a2 are converted into numarrays.
46 #
47 # binary operations are tested on all pairs from arglist
48 #
49 # each item in the arglist are used to construct the following 5 argument
50 # types arg for arithmetic operations:
51 #
52 # 1) arg is a numarray/list a0
53 # 2) arg is a Data with default value a0
54 # 3) arg is an DataArray with constant value a0
55 # 4) arg is a Data object with constant value a0 and value a1 for tag Tag1
56 # 5) arg is a Data object with constant value a0 and value a1 for tag Tag1
57 # and value a2 for Tag2.
58 #
59 # i.e for a single binary arithmetic operation (len(arglist)*5)**2
60 # test are performed.
61 #
62
63 arglist = [ \
64 [ [3,4], [-5,6.], [2,3] ], \
65 [ [[1,2],[3,4]], [[5,6],[7,8]], [[-5,-6],[7,8]] ], \
66 [ [[15,8],[12,8]], [[-9,9],[13,8]], [[7,34],[19,7]] ], \
67 [ [[[15,8],[12,8]],[[-9,9],[13,8]]], [[[3,4],[-9,4]],[[1,-9],[7,4]]], [[[5,2],[6,2]],[[-6,4],[7,5]]] ], \
68 [ [3.], [6.], [3] ] \
69 ]
70
71 # these are used to test slicing:
72
73 a_r1=[ [1,2,3], [-1,-2,-3], [100,200,300] ]
74
75 a_r1_in=[ [1./1,2,3], [-1./1,-1./2,-1./3], [1./100,1./200,1./300] ]
76
77 a_r4=[ \
78 [ [ [[ 1,2,3],[11,12,13]], [[21,22,23],[31,32,33]], [[41,42,43],[51,52,53]] ], [ [[101,102,103],[111,112,113]], [[121,122,123],[131,132,133]], [[141,142,143],[151,152,153]] ], [ [[201,202,203],[211,212,213]], [[221,222,223],[231,232,233]], [[241,242,243],[251,252,253]] ] ], \
79 [ [ [[-1,-2,-3],[-11,-12,-13]], [[-21,-22,-23],[-31,-32,-33]], [[-41,-42,-43],[-51,-52,-53]] ], [ [[-101,-102,-103],[-111,-112,-113]], [[-121,-122,-123],[-131,-132,-133]], [[-141,-142,-143],[-151,-152,-153]] ], [ [[-201,-202,-203],[-211,-212,-213]], [[-221,-222,-223],[-231,-232,-233]], [[-241,-242,-243],[-251,-252,-253]] ] ], \
80 [ [[[11,12,13],[111,112,113]], [[121,122,123],[131,132,133]], [[141,142,143],[151,152,153]] ], [ [[1101,1102,1103],[1111,1112,1113]], [[1121,1122,1123],[1131,1132,1133]], [[1141,1142,1143],[1151,1152,1153]] ], [ [[1201,1202,1203],[1211,1212,1213]], [[1221,1222,1223],[1231,1232,1233]], [[1241,1242,1243],[1251,1252,1253]] ] ] ]
81
82 a_r4_in=[ \
83 [ [ [[1./1,1./2,1./3],[1./11,1./12,1./13]], [[1./21,1./22,1./23],[1./31,1./32,1./33]], [[1./41,1./42,1./43],[1./51,1./52,1./53]] ], [ [[1./101,1./102,1./103],[1./111,1./112,1./113]], [[1./121,1./122,1./123],[1./131,1./132,1./133]], [[1./141,1./142,1./143],[1./151,1./152,1./153]] ], [ [[1./201,1./202,1./203],[1./211,1./212,1./213]], [[1./221,1./222,1./223],[1./231,1./232,1./233]], [[1./241,1./242,1./243],[1./251,1./252,1./253]] ] ], \
84 [ [ [[-1./1,-1./2,-1./3],[-1./11,-1./12,-1./13]], [[-1./21,-1./22,-1./23],[-1./31,-1./32,-1./33]], [[-1./41,-1./42,-1./43],[-1./51,-1./52,-1./53]] ], [ [[-1./101,-1./102,-1./103],[-1./111,-1./112,-1./113]], [[-1./121,-1./122,-1./123],[-1./131,-1./132,-1./133]], [[-1./141,-1./142,-1./143],[1./-151,-1./152,-1./153]] ], [ [[-1./201,-1./202,-1./203],[-1./211,-1./212,-1./213]], [[-1./221,-1./222,-1./223],[-1./231,-1./232,-1./233]], [[-1./241,-1./242,-1./243],[-1./251,-1./252,-1./253]] ] ], \
85 [ [ [[1./11,1./12,1./13],[1./111,1./112,1./113]], [[1./121,1./122,1./123],[1./131,1./132,1./133]], [[1./141,1./142,1./143],[1./151,1./152,1./153]] ], [ [[1./1101,1./1102,1./1103],[1./1111,1./1112,1./1113]], [[1./1121,1./1122,1./1123],[1./1131,1./1132,1./1133]], [[1./1141,1./1142,1./1143],[1./1151,1./1152,1./1153]] ], [ [[1./1201,1./1202,1./1203],[1./1211,1./1212,1./1213]], [[1./1221,1./1222,1./1223],[1./1231,1./1232,1./1233]], [[1./1241,1./1242,1./1243],[1./1251,1./1252,1./1253]] ] ] ]
86
87
88 def turnToArray(val,tagged):
89 if tagged=="Tagged1":
90 out=[array(val[0],Float64),array(val[1],Float64),array(val[0],Float64)]
91 elif tagged=="Tagged2":
92 out=[array(val[0],Float64),array(val[1],Float64),array(val[2],Float64)]
93 else:
94 out=[array(val[0],Float64),array(val[0],Float64),array(val[0],Float64)]
95 return out
96
97 def prepareArg(val,ex,wh):
98 if ex=="Array":
99 out=val[0]
100 else:
101 if ex=="Expanded":
102 exx=True
103 else:
104 exx=False
105 out=Data(val[0],what=wh,expand=exx)
106 if ex=="Tagged1":
107 out.setTaggedValue(Tag1,val[1])
108 elif ex=="Tagged2":
109 out.setTaggedValue(Tag1,val[1])
110 out.setTaggedValue(Tag2,val[2])
111 return out
112
113 def getRank(arg):
114 if isinstance(arg,Data):
115 return arg.getRank()
116 else:
117 g=array(arg)
118 if g.rank==0:
119 return 1
120 else:
121 return g.rank
122
123 def isScalar(arg):
124 if isinstance(arg,Data):
125 if arg.getRank()==1 and arg.getShape()[0]==1:
126 return not None
127 else:
128 return None
129 else:
130 g=array(arg)
131 if g.rank==0:
132 return not None
133 else:
134 if g.rank==1 and g.shape[0]==1:
135 return not None
136 else:
137 return None
138
139 def checkResult(text,org,res,val0,val1,val2,wh):
140 print "%s" % (text)
141 print "%s shape %s" % ("argument",org.getShape())
142 print "%s shape %s" % ("result",res.getShape())
143
144 ref=Data(val0,what=wh,expand=False)
145 ref.setTaggedValue(Tag1,val1)
146 ref.setTaggedValue(Tag2,val2)
147 norm=Lsup(ref)+tol
148 error=Lsup(ref-res)/norm
149 print "error = %e\n" % (error)
150 if error>tol:
151 raise SystemError,"@@ %s at %s: error is too large" % (text,wh)
152
153 #
154 # test slicing
155 #
156
157 msh=finley.Rectangle(20,6,1)
158
159 for wh in [ContinuousFunction(msh),Function(msh)]:
160
161 for ex1 in ["Constant","Expanded","Tagged1","Tagged2"]:
162
163 print "\nData type: ", ex1
164 print "******************************************\n"
165
166 # rank 1
167 arg=prepareArg(a_r1,ex1,wh)
168 arrays=turnToArray(a_r1,ex1)
169
170 if isinstance(arg,Data):
171
172 checkResult("slicing: rank=1,[:]",
173 arg, \
174 arg[:], \
175 arrays[0][:], \
176 arrays[1][:], \
177 arrays[2][:], \
178 wh)
179
180 checkResult("slicing: rank=1 [1]",
181 arg, \
182 arg[1], \
183 arrays[0][1], \
184 arrays[1][1], \
185 arrays[2][1], \
186 wh)
187
188 checkResult("slicing: rank=1 [1:3]",
189 arg, \
190 arg[1:3], \
191 arrays[0][1:3], \
192 arrays[1][1:3], \
193 arrays[2][1:3], \
194 wh)
195
196 checkResult("slicing: rank=1 [2:]",
197 arg, \
198 arg[2:], \
199 arrays[0][2:], \
200 arrays[1][2:], \
201 arrays[2][2:], \
202 wh)
203
204 checkResult("slicing: rank=1 [:1]",
205 arg, \
206 arg[:1], \
207 arrays[0][:1], \
208 arrays[1][:1], \
209 arrays[2][:1], \
210 wh)
211
212 # rank 4
213 arg=prepareArg(a_r4,ex1,wh)
214 arrays=turnToArray(a_r4,ex1)
215
216 if isinstance(arg,Data):
217
218 checkResult("slicing: rank=4,[:]",
219 arg, \
220 arg[:], \
221 arrays[0][:], \
222 arrays[1][:], \
223 arrays[2][:], \
224 wh)
225
226 checkResult("slicing: rank=4 [1]",
227 arg, \
228 arg[1], \
229 arrays[0][1], \
230 arrays[1][1], \
231 arrays[2][1], \
232 wh)
233
234 checkResult("slicing: rank=4 [1,1,1,1]",
235 arg, \
236 arg[1,1,1,1], \
237 arrays[0][1,1,1,1], \
238 arrays[1][1,1,1,1], \
239 arrays[2][1,1,1,1], \
240 wh)
241
242 checkResult("slicing: rank=4 [1:3]",
243 arg, \
244 arg[1:3], \
245 arrays[0][1:3], \
246 arrays[1][1:3], \
247 arrays[2][1:3], \
248 wh)
249
250 checkResult("slicing: rank=4 [:2]",
251 arg, \
252 arg[:2], \
253 arrays[0][:2], \
254 arrays[1][:2], \
255 arrays[2][:2], \
256 wh)
257
258 checkResult("slicing: rank=4 [1:]",
259 arg, \
260 arg[1:], \
261 arrays[0][1:], \
262 arrays[1][1:], \
263 arrays[2][1:], \
264 wh)
265
266 checkResult("slicing: rank=4,[:,:]",
267 arg, \
268 arg[:,:], \
269 arrays[0][:,:], \
270 arrays[1][:,:], \
271 arrays[2][:,:], \
272 wh)
273
274 checkResult("slicing: rank=4 [:,1]",
275 arg, \
276 arg[:,1], \
277 arrays[0][:,1], \
278 arrays[1][:,1], \
279 arrays[2][:,1], \
280 wh)
281
282 checkResult("slicing: rank=4 [:,1:3]",
283 arg, \
284 arg[:,1:3], \
285 arrays[0][:,1:3], \
286 arrays[1][:,1:3], \
287 arrays[2][:,1:3], \
288 wh)
289
290 checkResult("slicing: rank=4 [1:2,1:3]",
291 arg, \
292 arg[1:2,1:3], \
293 arrays[0][1:2,1:3], \
294 arrays[1][1:2,1:3], \
295 arrays[2][1:2,1:3], \
296 wh)
297
298 checkResult("slicing: rank=4 [:,1:2,1:2]",
299 arg, \
300 arg[:,1:2,1:2], \
301 arrays[0][:,1:2,1:2], \
302 arrays[1][:,1:2,1:2], \
303 arrays[2][:,1:2,1:2], \
304 wh)
305
306 checkResult("slicing: rank=4 [:,:,1:2,1:3]",
307 arg, \
308 arg[:,:,1:2,1:3], \
309 arrays[0][:,:,1:2,1:3], \
310 arrays[1][:,:,1:2,1:3], \
311 arrays[2][:,:,1:2,1:3], \
312 wh)
313
314 checkResult("slicing: rank=4 [1:2,1:3,1,1]",
315 arg, \
316 arg[1:2,1:3,1,1], \
317 arrays[0][1:2,1:3,1,1], \
318 arrays[1][1:2,1:3,1,1], \
319 arrays[2][1:2,1:3,1,1], \
320 wh)
321
322 checkResult("slicing: rank=4 [1:2,1:3,:,1] ",
323 arg, \
324 arg[1:2,1:3,:,1], \
325 arrays[0][1:2,1:3,:,1], \
326 arrays[1][1:2,1:3,:,1], \
327 arrays[2][1:2,1:3,:,1], \
328 wh)
329
330 checkResult("slicing: rank=4 [1:2,1:3,0,:] ",
331 arg, \
332 arg[1:2,1:3,0,:], \
333 arrays[0][1:2,1:3,0,:], \
334 arrays[1][1:2,1:3,0,:], \
335 arrays[2][1:2,1:3,0,:], \
336 wh)
337
338 checkResult("slicing: rank=4 [1:2,1:3,0,1] ",
339 arg, \
340 arg[1:2,1:3,0,1], \
341 arrays[0][1:2,1:3,0,1], \
342 arrays[1][1:2,1:3,0,1], \
343 arrays[2][1:2,1:3,0,1], \
344 wh)
345
346 checkResult("slicing: rank=4 [1,1,0,1] ",
347 arg, \
348 arg[1,1,0,1], \
349 arrays[0][1,1,0,1], \
350 arrays[1][1,1,0,1], \
351 arrays[2][1,1,0,1], \
352 wh)

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