Changeset 2672 for trunk/python

Timestamp:

10/18/12 21:06:07 (12 years ago)

Author:

Malte Marquarding

Message:

introduce 'reshape' method; this includes a fix to c++ for the upper boundary assertion

Location:

trunk/python

Files:

• ipysupport.py (modified) (1 diff)
• scantable.py (modified) (1 diff)

trunk/python/ipysupport.py

@@ -97 +97 @@
         resample        - return a scan with resampled channels
         smooth          - return the spectrally smoothed scan
+        reshape         - cut out channel range
         poly_baseline   - fit a polynomial baseline to all Beams/IFs/Pols
         auto_poly_baseline - automatically fit a polynomial baseline

trunk/python/scantable.py

@@ -2192 +2192 @@
 
     @asaplog_post_dec
+    def reshape(self, first, last, insitu=None):
+        """Resize the band by providing first and last channel. 
+        This will cut off all channels outside [first, last].
+        """
+        if insitu is None: 
+            insitu = rcParams['insitu']
+        varlist = vars()
+        if last < 0:
+            last = self.nchan()-1 + last
+        s = None
+        if insitu:
+            s = self
+        else:
+            s = self.copy()
+        s._reshape(first,last)
+        s._add_history("reshape", varlist)
+        if not insitu:
+            return s        
+
+    @asaplog_post_dec
     def resample(self, width=5, method='cubic', insitu=None):
         """\