Changeset 1639 for branches/alma/python

Timestamp:

09/30/09 17:56:00 (15 years ago)

Author:

Kana Sugimoto

Message:

New Development: Yes

JIRA Issue: Yes (CAS-1429)

Ready to Release: Yes

Interface Changes: Yes

What Interface Changed:
A new python method, selector.set_rows(rownrs=[]),
and a cpp function,
STSelector::setRows( const std::vector< int >& rows ),
are added.
The cpp function can be called with selector._setrows()
from python scripts.

Test Programs:

# @casa
s=sd.scantable('ORIGINAL_TABLE_NAME', False)
sel=sd.selector()
rownrs=[1,3,5,7]
sel.set_rows(rownrs)
s.set_selection(sel)
s2=s.copy()
s2.save(name='NEW_TABLE_NAME',format='ASAP',overwrite=True)

Put in Release Notes: Yes

Module(s):

Description:

Data selection by a list of row numbers can be done by
the new method selector.set_rows.

File:

• branches/alma/python/selector.py (modified) (1 diff)

branches/alma/python/selector.py

@@ -147 +147 @@
         """
         self._setorder(order)
+
+    def set_rows(self, rows=[]):
+        """
+        Set a sequence of row numbers (0-based). Power users Only!
+        NOTICE row numbers can be changed easily by sorting,
+        prior selection, etc. 
+        Parameters:
+            rows:    a list of integers. Default [] is to unset the selection.
+        """
+        vec = _to_list(rows, int) 
+        if isinstance(vec,list):
+            self._setrows(vec)
+        else:
+            raise TypeError('Unknown row number type. Use lists of integers.')
 
     def get_scans(self):