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GeometryModel
Base class for Distortion model.
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IDCModel
This class will open the IDCTAB, select proper row based on
chip/direction and populate cx,cy arrays.
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WCSModel
This class sets up a distortion model based on coefficients found in
the image header.
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DrizzleModel
This class will read in an ASCII Cubic drizzle coeffs file and
populate the cx,cy arrays.
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TraugerModel
This class will read in the ASCII Trauger coeffs file, convert them
to SIAF coefficients, then populate the cx,cy arrays.
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ObsGeometry
Base class for Observation's geometric information.
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