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diff --git a/math/iminterp/doc/msifit.hlp b/math/iminterp/doc/msifit.hlp new file mode 100644 index 00000000..9a63ae2d --- /dev/null +++ b/math/iminterp/doc/msifit.hlp @@ -0,0 +1,45 @@ +.help msifit Dec98 "Image Interpolation Package" +.ih +NAME +msifit - fit the interpolant to the data +.ih +SYNOPSIS +msifit (msi, datain, nxpix, nypix, len_datain) + +.nf + pointer msi #I interpolant descriptor + real datain[len_datain,ARB] #I data array + int nxpix #I number of x pixels + int nypix #I number of y pixels + int len_datain #I length of datain, len_datain >= nxpix +.fi +.ih +ARGUMENTS +.ls msi +Pointer to the sequential interpolant descriptor. +.le +.ls datain +Array containing the data. +.le +.ls nxpix, nypix +The number of pixels in x and y. +.le +.ls len_datain +The row length of the datain array. Len_datain must be >= nxpix. +.le +.ih +DESCRIPTION +The datain array is checked for size, memory is allocated for the coefficient +array and the end conditions are specified. The interior polynomial, sinc, +and drizzle interpolants are saved as the data points. The polynomial +coefficients are calculated from the data points in the evaluation stage. +The B-spline coefficients are calculated in MSIFIT as they depend on the +entire data array. +.ih +NOTES +Checking for INDEF valued pixels is the responsibility of the user. +MSIINIT or MSISINIT must be called before using MSIFIT. MSIFIT must be +called before using MSIEVAL, MSIVECTOR, MSIDER, MSIGRL or MSISQGRL. +.ih +SEE ALSO +.endhelp |