.. _skytopix:

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skytopix: Coordinate transformation from sky coordinates
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This task allows a user to perform coordinate transformations
with the full WCS and distortion model on source positions
from sky coordinates to the WCS defined by an image.  
This task serves as a replacement for the IRAF.STSDAS task 
'rd2xy', albeit with the
added capability of understanding the full distortion model 
provided in the headers of images updated for use with astrodrizzle and
tweakreg.

.. automodule:: drizzlepac.skytopix

.. autofunction:: rd2xy