.help msiinit Dec98 "Image Interpolation Package"
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NAME
msiinit -- initialize the sequential interpolant descriptor
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SYNOPSIS
include <math/iminterp.h>

msiinit (msi, interp_type)

.nf
    pointer	msi		#U interpolant descriptor
    int		interp_type	#I interpolant type
.fi
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ARGUMENTS
.ls msi     
Pointer to the sequential interpolant descriptor.
.le
.ls interp_type
Interpolant type. The options are II_BINEAREST, II_BILINEAR, II_BIPOLY3,
II_BIPOLY5, II_BISPLINE3, II_BISINC, II_BILSINC, and II_BIDRIZZLE, for
nearest neighbour, bilinear, 3rd and 5th order interior polynomials, bicubic
spline, sinc, look-up table sinc, and drizzle respectively. The interpolant
definitions are found in the package header file math/iminterp.h.
.le
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DESCRIPTION
The interpolant type is allocated and initialized. The pointer msi is
returned by MSIINIT. The sinc interpolant width defaults to 31 pixels
in x and y. The look-up table sinc resolution defaults to 20 resolution
elements or 0.05 pixels in x and y. The drizzle pixel fraction defaults
to 1.0.
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NOTES
MSIINIT, MSISINIT or MSIRESTORE must be called before using any other
MSI routines.
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SEE ALSO
msirestore, msifree
.endhelp
