[Scipy-svn] r2890 - in trunk/Lib/ndimage: . tests

scipy-svn@scip... scipy-svn@scip...
Thu Mar 29 07:36:58 CDT 2007


Author: stefan
Date: 2007-03-29 07:36:36 -0500 (Thu, 29 Mar 2007)
New Revision: 2890

Modified:
   trunk/Lib/ndimage/_ni_support.py
   trunk/Lib/ndimage/tests/test_ndimage.py
Log:
Add boundary tests.  Enable 'mirror' mode.


Modified: trunk/Lib/ndimage/_ni_support.py
===================================================================
--- trunk/Lib/ndimage/_ni_support.py	2007-03-29 12:07:01 UTC (rev 2889)
+++ trunk/Lib/ndimage/_ni_support.py	2007-03-29 12:36:36 UTC (rev 2890)
@@ -40,6 +40,8 @@
         return 1
     elif mode == 'reflect':
         return 2
+    elif mode == 'mirror':
+        return 3    
     elif mode == 'constant':
         return 4
     else:

Modified: trunk/Lib/ndimage/tests/test_ndimage.py
===================================================================
--- trunk/Lib/ndimage/tests/test_ndimage.py	2007-03-29 12:07:01 UTC (rev 2889)
+++ trunk/Lib/ndimage/tests/test_ndimage.py	2007-03-29 12:36:36 UTC (rev 2890)
@@ -70,8 +70,6 @@
                       numpy.uint16, numpy.int32, numpy.uint32,
                       numpy.int64, numpy.uint64,
                       numpy.float32, numpy.float64]
-##      if numinclude.hasUInt64:
-##          self.types.append(numpy.UInt64)
 
         # list of boundary modes:
         self.modes = ['nearest', 'wrap', 'reflect', 'constant']
@@ -1296,6 +1294,24 @@
                                                  mode = mode, cval = 0)
             self.failUnless(diff(output, true_value) < eps)
 
+    def test_boundaries(self):
+        "boundary modes"
+        def shift(x):
+            return (x[0] + 0.1,)
+
+        data = numpy.array([1,2,3,4])
+        expected = {'constant': [1,2,3,-1,-1,-1],
+                    'wrap': [1,2,3,4,1,2],
+                    'reflect' : [1,2,3,4,4,3],
+                    'mirror' : [1,2,3,4,3,2],                    
+                    'nearest' : [1,2,3,4,4,4]}
+
+        for mode in expected.keys():
+            assert_array_equal(expected[mode],
+                               ndimage.geometric_transform(data,shift,
+                                                           cval=-1,mode=mode,
+                                                           output_shape=(6,)))
+
     def test_fourier_gaussian_real01(self):
         "gaussian fourier filter for real transforms 1"
         for shape in [(32, 16), (31, 15)]:



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