[Proj] rHEALPix new parameters

[Michael Speth]

Greetings,
   I've implemented the HEALPix projection and have now moved on to 
implementing a new projection called rHEALPix.  I have two questions 
regarding this implementation.

* rHEALPix requires 2 new parameters (spole and npole).  How do I 
specify those parameters on the command line?  (In the code I am using 
the pr_param function.

* The rHEALPix projection uses the HEALPix projection.  So is it 
possible to create a header with corresponding c file that shares common 
functions between the HEALPix and rHEALPix projections?  If so, how 
should I name the files?

Thanks

-- 
Michael Speth
Scientific Programmer
Landcare Research