.help msigetr Dec98 msigetr.hlp
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NAME
msigetr -- fetch an msi real parameter
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SYNOPSIS
include <math/iminterp.h>

rvalue = msigetr (msi, param)

.nf
    pointer	msi		#I interpolant descriptor
    int		param		#I parameter
.fi
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ARGUMENTS
.ls msi      
Pointer to the sequential interpolant descriptor structure.
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.ls param
The parameter to be fetched. The choices are: II_MSIBADVAL, the undefined
pixel value for the drizzle interpolant. The parameter definitions are
contained in the package header file math/iminterp.h.
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DESCRIPTION
MSIGETR is used to set the value of undefined drizzle interpolant pixels.
Undefined pixels are those for which the interpolation coordinates do not
overlap the input coordinates, but are still, within the boundaries of the input
image, a situation which may occur when the pixel fraction is < 1.0.
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NOTES
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SEE ALSO
msiinit, msisinit, msigeti
.endhelp