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diff --git a/doc/source/index.rst b/doc/source/index.rst index a7bacd1..f108683 100644 --- a/doc/source/index.rst +++ b/doc/source/index.rst @@ -6,10 +6,22 @@ Welcome to STWCS's documentation! ================================= +This package provides support for WCS based distortion models and coordinate +transformation. It relies on PyWCS (based on WCSLIB). It consists of two subpackages: +UPDATEWCS and WCSUTIL. UPDATEWCS performs corrections to the basic WCS and includes +other distortion infomation in the science files as header keywords or file extensions. +WCSUTIL provides an HSTWCS object which extends pywcs.WCS object and provides HST instrument +specific information as well as methods for coordinate tarnsformaiton. WCSUTIL also provides +functions for manipulating alternate WCS descriptions in the headers. + Contents: .. toctree:: :maxdepth: 2 + + wcsutil + updatewcs + Indices and tables ================== |