New Development: Yes/No
            JIRA Issue: CAS-5835 
        Ready for Test: Yes
     Interface Changes: Yes
What Interface Changed: new method toPixel() that returns Vector<Double> and throws exception on error
         Test Programs: tDirectionCoordinate
  Put in Release Notes: Yes/No
             Module(s): Module Names change impacts.
           Description: as above

	



git-svn-id: https://svn.cv.nrao.edu/svn/casa/trunk/casacore@27888 ac9c0da5-131f-0410-9009-a9c195f183e6