/[escript]/trunk/esys2/escript/test/python/SliceGetting.py
ViewVC logotype

Annotation of /trunk/esys2/escript/test/python/SliceGetting.py

Parent Directory Parent Directory | Revision Log Revision Log


Revision 147 - (hide annotations)
Fri Aug 12 01:45:47 2005 UTC (14 years, 3 months ago) by jgs
File MIME type: text/x-python
File size: 10424 byte(s)
erge of development branch dev-02 back to main trunk on 2005-08-12

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 jgs 141 from escript.escript import *
14     from finley import finley
15 jgs 102
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 jgs 147 raise SystemError,"@@ %s at %s: error is too large"%(text,wh)
85     sys.exit(1)
86 jgs 102
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=finley.Rectangle(20,6,1)
120     for wh in [ContinuousFunction(msh),Function(msh)]:
121    
122     print wh
123    
124 jgs 121 for ex1 in ["Constant", "Expanded"]:
125 jgs 102
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 jgs 147 sys.exit(0)
293 jgs 102 # end

Properties

Name Value
svn:eol-style native
svn:keywords Author Date Id Revision

  ViewVC Help
Powered by ViewVC 1.1.26