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

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Revision 155 - (show annotations)
Wed Nov 9 02:02:19 2005 UTC (13 years, 10 months ago) by jgs
File MIME type: text/x-python
File size: 10415 byte(s)
move all directories from trunk/esys2 into trunk and remove esys2

1 """
2
3 Tests slice getting for Data objects.
4
5 Version $Id$
6
7 """
8
9 import sys
10 import unittest
11 import os
12
13 from esys.escript import *
14 from esys import bruce
15
16 import numarray
17 from numarray import array,Float64,ones,greater
18
19 Tag1=10
20 Tag2=11
21
22 tol=1.E-15
23
24 #
25 # list of arguments: a list item has the form [a0,a1,a2]
26 # what a0 is the default value and a1 is used for tag Tag1
27 # and a2 for tag2. a0,a1,a2 are converted into numarrays.
28 #
29
30 arglist = [ \
31 [ [3,4], [-5,6.], [2,3] ], \
32 [ [[1,2],[3,4]], [[5,6],[7,8]], [[-5,-6],[7,8]] ], \
33 [ [[15,8],[12,8]], [[-9,9],[13,8]], [[7,34],[19,7]] ], \
34 [ [[[15,8],[12,8]],[[-9,9],[13,8]]], [[[3,4],[-9,4]],[[1,-9],[7,4]]], [[[5,2],[6,2]],[[-6,4],[7,5]]] ], \
35 [ 3.0, 6.0, 3 ] \
36 ]
37
38 # these are used to test slicing:
39 a_r1=[ [1,2,3], [-1,-2,-3], [100,200,300] ]
40 a_r1_in=[ [1./1,2,3], [-1./1,-1./2,-1./3], [1./100,1./200,1./300] ]
41 a_r4=[ \
42 [ [ [[ 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]] ] ], \
43 [ [ [[ -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]] ] ], \
44 [ [[[ 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]] ] ] ]
45 a_r4_in=[ \
46 [ [ [[ 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]] ] ], \
47 [ [ [[ -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]] ] ], \
48 [ [[[ 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]] ] ] ]
49
50 def turnToArray(val,tagged):
51 if tagged=="Tagged1":
52 out=[array(val[0],Float64),array(val[1],Float64),array(val[0],Float64)]
53 elif tagged=="Tagged2":
54 out=[array(val[0],Float64),array(val[1],Float64),array(val[2],Float64)]
55 else:
56 out=[array(val[0],Float64),array(val[0],Float64),array(val[0],Float64)]
57 return out
58
59 def prepareArg(val,ex,wh):
60 if ex=="Array":
61 out=val[0]
62 else:
63 if ex=="Expanded":
64 exx=True
65 else:
66 exx=False
67 out=Data(val[0],what=wh,expand=exx)
68 if ex=="Tagged1":
69 out.setTaggedValue(Tag1,val[1])
70 elif ex=="Tagged2":
71 out.setTaggedValue(Tag1,val[1])
72 out.setTaggedValue(Tag2,val[2])
73 return out
74
75 def checkResult(text,res,val0,val1,val2,wh):
76 ref=Data(val0,what=wh,expand=False)
77 ref.setTaggedValue(Tag1,val1)
78 ref.setTaggedValue(Tag2,val2)
79 norm=Lsup(ref)+tol
80 error=Lsup(ref-res)/norm
81 print "@@ %s, shape %s: error = %e"%(text,ref.getShape(),error)
82 if error>tol:
83 print "**** %s: error is too large"%(text)
84 raise SystemError,"@@ %s at %s: error is too large"%(text,wh)
85 sys.exit(1)
86
87 def getRank(arg):
88 if isinstance(arg,Data):
89 return arg.getRank()
90 else:
91 g=array(arg)
92 if g.rank==0:
93 return 1
94 else:
95 return g.rank
96
97 def isScalar(arg):
98 if isinstance(arg,Data):
99 if arg.getRank()==1 and arg.getShape()[0]==1:
100 return not None
101 else:
102 return None
103 else:
104 g=array(arg)
105 if g.rank==0:
106 return not None
107 else:
108 if g.rank==1 and g.shape[0]==1:
109 return not None
110 else:
111 return None
112
113 #
114 # ==============================================================
115 #
116 # test slice getting:
117 #
118
119 msh=bruce.Rectangle(20,6)
120 for wh in [ContinuousFunction(msh),Function(msh)]:
121
122 print wh
123
124 for ex1 in ["Constant", "Expanded"]:
125
126 print "Slice getting: ", ex1, ":"
127
128 # rank 1
129
130 arg=prepareArg(a_r1,ex1,wh)
131 arrays=turnToArray(a_r1,ex1)
132
133 checkResult("slicing: rank=1 [:] "+ex1, \
134 arg[:], \
135 arrays[0][:], \
136 arrays[1][:], \
137 arrays[2][:], \
138 wh)
139
140 checkResult("slicing: rank=1 [1] "+ex1, \
141 arg[1], \
142 arrays[0][1], \
143 arrays[1][1], \
144 arrays[2][1], \
145 wh)
146
147 checkResult("slicing: rank=1 [1:3] "+ex1, \
148 arg[1:3], \
149 arrays[0][1:3], \
150 arrays[1][1:3], \
151 arrays[2][1:3], \
152 wh)
153
154 checkResult("slicing: rank=1 [2:] "+ex1, \
155 arg[2:], \
156 arrays[0][2:], \
157 arrays[1][2:], \
158 arrays[2][2:], \
159 wh)
160
161 checkResult("slicing: rank=1 [:1] "+ex1, \
162 arg[:1], \
163 arrays[0][:1], \
164 arrays[1][:1], \
165 arrays[2][:1], \
166 wh)
167
168 # rank 4
169
170 arg=prepareArg(a_r4,ex1,wh)
171 arrays=turnToArray(a_r4,ex1)
172
173 checkResult("slicing: rank=4 [:] "+ex1, \
174 arg[:], \
175 arrays[0][:], \
176 arrays[1][:], \
177 arrays[2][:], \
178 wh)
179
180 checkResult("slicing: rank=4 [1] "+ex1, \
181 arg[1], \
182 arrays[0][1], \
183 arrays[1][1], \
184 arrays[2][1], \
185 wh)
186
187 checkResult("slicing: rank=4 [1,1,1,1] "+ex1, \
188 arg[1,1,1,1], \
189 arrays[0][1,1,1,1], \
190 arrays[1][1,1,1,1], \
191 arrays[2][1,1,1,1], \
192 wh)
193
194 checkResult("slicing: rank=4 [1:3] "+ex1, \
195 arg[1:3], \
196 arrays[0][1:3], \
197 arrays[1][1:3], \
198 arrays[2][1:3], \
199 wh)
200
201 checkResult("slicing: rank=4 [:2] "+ex1, \
202 arg[:2], \
203 arrays[0][:2], \
204 arrays[1][:2], \
205 arrays[2][:2], \
206 wh)
207
208 checkResult("slicing: rank=4 [1:] "+ex1, \
209 arg[1:], \
210 arrays[0][1:], \
211 arrays[1][1:], \
212 arrays[2][1:], \
213 wh)
214
215 checkResult("slicing: rank=4 [:,:] "+ex1, \
216 arg[:,:], \
217 arrays[0][:,:], \
218 arrays[1][:,:], \
219 arrays[2][:,:], \
220 wh)
221
222 checkResult("slicing: rank=4 [:,1] "+ex1, \
223 arg[:,1], \
224 arrays[0][:,1], \
225 arrays[1][:,1], \
226 arrays[2][:,1], \
227 wh)
228
229 checkResult("slicing: rank=4 [:,1:3] "+ex1, \
230 arg[:,1:3], \
231 arrays[0][:,1:3], \
232 arrays[1][:,1:3], \
233 arrays[2][:,1:3], \
234 wh)
235
236 checkResult("slicing: rank=4 [1:2,1:3] "+ex1, \
237 arg[1:2,1:3], \
238 arrays[0][1:2,1:3], \
239 arrays[1][1:2,1:3], \
240 arrays[2][1:2,1:3], \
241 wh)
242
243 checkResult("slicing: rank=4 [:,1:2,1:2] "+ex1, \
244 arg[:,1:2,1:2], \
245 arrays[0][:,1:2,1:2], \
246 arrays[1][:,1:2,1:2], \
247 arrays[2][:,1:2,1:2], \
248 wh)
249
250 checkResult("slicing: rank=4 [:,:,1:2,1:3] "+ex1, \
251 arg[:,:,1:2,1:3], \
252 arrays[0][:,:,1:2,1:3], \
253 arrays[1][:,:,1:2,1:3], \
254 arrays[2][:,:,1:2,1:3], \
255 wh)
256
257 checkResult("slicing: rank=4 [1:2,1:3,1,1] "+ex1, \
258 arg[1:2,1:3,1,1], \
259 arrays[0][1:2,1:3,1,1], \
260 arrays[1][1:2,1:3,1,1], \
261 arrays[2][1:2,1:3,1,1], \
262 wh)
263
264 checkResult("slicing: rank=4 [1:2,1:3,:,1] "+ex1, \
265 arg[1:2,1:3,:,1], \
266 arrays[0][1:2,1:3,:,1], \
267 arrays[1][1:2,1:3,:,1], \
268 arrays[2][1:2,1:3,:,1], \
269 wh)
270
271 checkResult("slicing: rank=4 [1:2,1:3,0,:] "+ex1, \
272 arg[1:2,1:3,0,:], \
273 arrays[0][1:2,1:3,0,:], \
274 arrays[1][1:2,1:3,0,:], \
275 arrays[2][1:2,1:3,0,:], \
276 wh)
277
278 checkResult("slicing: rank=4 [1:2,1:3,0,1] "+ex1, \
279 arg[1:2,1:3,0,1], \
280 arrays[0][1:2,1:3,0,1], \
281 arrays[1][1:2,1:3,0,1], \
282 arrays[2][1:2,1:3,0,1], \
283 wh)
284
285 checkResult("slicing: rank=4 [1,1,0,1] "+ex1, \
286 arg[1,1,0,1], \
287 arrays[0][1,1,0,1], \
288 arrays[1][1,1,0,1], \
289 arrays[2][1,1,0,1], \
290 wh)
291
292 sys.exit(0)
293 # end

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