/[escript]/trunk/escript/test/python/SliceGetting.py
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Revision 102 - (hide annotations)
Wed Dec 15 07:08:39 2004 UTC (14 years, 11 months ago) by jgs
Original Path: trunk/esys2/escript/test/python/SliceGetting.py
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1 jgs 102 """
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 finley
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     #raise SystemError,"@@ %s at %s: error is too large"%(text,wh)
84     print "**** %s: error is too large"%(text)
85    
86     def getRank(arg):
87     if isinstance(arg,Data):
88     return arg.getRank()
89     else:
90     g=array(arg)
91     if g.rank==0:
92     return 1
93     else:
94     return g.rank
95    
96     def isScalar(arg):
97     if isinstance(arg,Data):
98     if arg.getRank()==1 and arg.getShape()[0]==1:
99     return not None
100     else:
101     return None
102     else:
103     g=array(arg)
104     if g.rank==0:
105     return not None
106     else:
107     if g.rank==1 and g.shape[0]==1:
108     return not None
109     else:
110     return None
111    
112     #
113     # ==============================================================
114     #
115     # test slice getting:
116     #
117    
118     msh=finley.Rectangle(20,6,1)
119     for wh in [ContinuousFunction(msh),Function(msh)]:
120    
121     print wh
122    
123     for ex1 in ["Constant", "Expanded", "Tagged1", "Tagged2"]:
124    
125     print "Slice getting: ", ex1, ":"
126    
127     # rank 1
128    
129     arg=prepareArg(a_r1,ex1,wh)
130     arrays=turnToArray(a_r1,ex1)
131    
132     checkResult("slicing: rank=1 [:] "+ex1, \
133     arg[:], \
134     arrays[0][:], \
135     arrays[1][:], \
136     arrays[2][:], \
137     wh)
138    
139     checkResult("slicing: rank=1 [1] "+ex1, \
140     arg[1], \
141     arrays[0][1], \
142     arrays[1][1], \
143     arrays[2][1], \
144     wh)
145    
146     checkResult("slicing: rank=1 [1:3] "+ex1, \
147     arg[1:3], \
148     arrays[0][1:3], \
149     arrays[1][1:3], \
150     arrays[2][1:3], \
151     wh)
152    
153     checkResult("slicing: rank=1 [2:] "+ex1, \
154     arg[2:], \
155     arrays[0][2:], \
156     arrays[1][2:], \
157     arrays[2][2:], \
158     wh)
159    
160     checkResult("slicing: rank=1 [:1] "+ex1, \
161     arg[:1], \
162     arrays[0][:1], \
163     arrays[1][:1], \
164     arrays[2][:1], \
165     wh)
166    
167     # rank 4
168    
169     arg=prepareArg(a_r4,ex1,wh)
170     arrays=turnToArray(a_r4,ex1)
171    
172     checkResult("slicing: rank=4 [:] "+ex1, \
173     arg[:], \
174     arrays[0][:], \
175     arrays[1][:], \
176     arrays[2][:], \
177     wh)
178    
179     checkResult("slicing: rank=4 [1] "+ex1, \
180     arg[1], \
181     arrays[0][1], \
182     arrays[1][1], \
183     arrays[2][1], \
184     wh)
185    
186     checkResult("slicing: rank=4 [1,1,1,1] "+ex1, \
187     arg[1,1,1,1], \
188     arrays[0][1,1,1,1], \
189     arrays[1][1,1,1,1], \
190     arrays[2][1,1,1,1], \
191     wh)
192    
193     checkResult("slicing: rank=4 [1:3] "+ex1, \
194     arg[1:3], \
195     arrays[0][1:3], \
196     arrays[1][1:3], \
197     arrays[2][1:3], \
198     wh)
199    
200     checkResult("slicing: rank=4 [:2] "+ex1, \
201     arg[:2], \
202     arrays[0][:2], \
203     arrays[1][:2], \
204     arrays[2][:2], \
205     wh)
206    
207     checkResult("slicing: rank=4 [1:] "+ex1, \
208     arg[1:], \
209     arrays[0][1:], \
210     arrays[1][1:], \
211     arrays[2][1:], \
212     wh)
213    
214     checkResult("slicing: rank=4 [:,:] "+ex1, \
215     arg[:,:], \
216     arrays[0][:,:], \
217     arrays[1][:,:], \
218     arrays[2][:,:], \
219     wh)
220    
221     checkResult("slicing: rank=4 [:,1] "+ex1, \
222     arg[:,1], \
223     arrays[0][:,1], \
224     arrays[1][:,1], \
225     arrays[2][:,1], \
226     wh)
227    
228     checkResult("slicing: rank=4 [:,1:3] "+ex1, \
229     arg[:,1:3], \
230     arrays[0][:,1:3], \
231     arrays[1][:,1:3], \
232     arrays[2][:,1:3], \
233     wh)
234    
235     checkResult("slicing: rank=4 [1:2,1:3] "+ex1, \
236     arg[1:2,1:3], \
237     arrays[0][1:2,1:3], \
238     arrays[1][1:2,1:3], \
239     arrays[2][1:2,1:3], \
240     wh)
241    
242     checkResult("slicing: rank=4 [:,1:2,1:2] "+ex1, \
243     arg[:,1:2,1:2], \
244     arrays[0][:,1:2,1:2], \
245     arrays[1][:,1:2,1:2], \
246     arrays[2][:,1:2,1:2], \
247     wh)
248    
249     checkResult("slicing: rank=4 [:,:,1:2,1:3] "+ex1, \
250     arg[:,:,1:2,1:3], \
251     arrays[0][:,:,1:2,1:3], \
252     arrays[1][:,:,1:2,1:3], \
253     arrays[2][:,:,1:2,1:3], \
254     wh)
255    
256     checkResult("slicing: rank=4 [1:2,1:3,1,1] "+ex1, \
257     arg[1:2,1:3,1,1], \
258     arrays[0][1:2,1:3,1,1], \
259     arrays[1][1:2,1:3,1,1], \
260     arrays[2][1:2,1:3,1,1], \
261     wh)
262    
263     checkResult("slicing: rank=4 [1:2,1:3,:,1] "+ex1, \
264     arg[1:2,1:3,:,1], \
265     arrays[0][1:2,1:3,:,1], \
266     arrays[1][1:2,1:3,:,1], \
267     arrays[2][1:2,1:3,:,1], \
268     wh)
269    
270     checkResult("slicing: rank=4 [1:2,1:3,0,:] "+ex1, \
271     arg[1:2,1:3,0,:], \
272     arrays[0][1:2,1:3,0,:], \
273     arrays[1][1:2,1:3,0,:], \
274     arrays[2][1:2,1:3,0,:], \
275     wh)
276    
277     checkResult("slicing: rank=4 [1:2,1:3,0,1] "+ex1, \
278     arg[1:2,1:3,0,1], \
279     arrays[0][1:2,1:3,0,1], \
280     arrays[1][1:2,1:3,0,1], \
281     arrays[2][1:2,1:3,0,1], \
282     wh)
283    
284     checkResult("slicing: rank=4 [1,1,0,1] "+ex1, \
285     arg[1,1,0,1], \
286     arrays[0][1,1,0,1], \
287     arrays[1][1,1,0,1], \
288     arrays[2][1,1,0,1], \
289     wh)
290    
291     # end

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