1 files changed, 56 insertions, 0 deletions
diff --git a/math/iminterp/asivector.x b/math/iminterp/asivector.x
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+++ b/math/iminterp/asivector.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include <math/iminterp.h>
+include "im1interpdef.h"
+
+# ASIVECTOR -- Procedure to evaluate the interpolant at an array of ordered
+# points assuming that all points land in 1 <= x <= npts.
+
+procedure asivector (asi, x, y, npix)
+
+pointer	asi		# interpolator descriptor
+real	x[ARB]		# ordered x array
+real	y[ARB]		# interpolated values
+int	npix		# number of points in x
+
+begin
+	switch (ASI_TYPE(asi))	{
+
+	case II_NEAREST:
+	    call ii_nearest (x, y, npix,
+	        COEFF(ASI_COEFF(asi) + ASI_OFFSET(asi)))
+
+	case II_LINEAR:
+	    call ii_linear (x, y, npix, COEFF(ASI_COEFF(asi) + ASI_OFFSET(asi)))
+
+	case II_POLY3:
+	    call ii_poly3 (x, y, npix, COEFF(ASI_COEFF(asi) + ASI_OFFSET(asi)))
+
+	case II_POLY5:
+	    call ii_poly5 (x, y, npix, COEFF(ASI_COEFF(asi) + ASI_OFFSET(asi)))
+
+	case II_SPLINE3:
+	    call ii_spline3 (x, y, npix, COEFF(ASI_COEFF(asi) +
+	        ASI_OFFSET(asi)))
+
+	case II_SINC:
+	    call ii_sinc (x, y, npix, COEFF(ASI_COEFF(asi) + ASI_OFFSET(asi)),
+	        ASI_NCOEFF(asi), ASI_NSINC(asi), DX)
+
+	case II_LSINC:
+	    call ii_lsinc (x, y, npix, COEFF(ASI_COEFF(asi) + ASI_OFFSET(asi)),
+	        ASI_NCOEFF(asi), LTABLE(ASI_LTABLE(asi)),
+		2 * ASI_NSINC(asi) + 1, ASI_NINCR(asi), DX)
+
+	case II_DRIZZLE:
+	    if (ASI_PIXFRAC(asi) >= 1.0)
+	        call ii_driz1 (x, y, npix, COEFF(ASI_COEFF(asi) +
+		    ASI_OFFSET(asi)), ASI_BADVAL(asi))
+	    else
+	        call ii_driz (x, y, npix, COEFF(ASI_COEFF(asi) +
+		    ASI_OFFSET(asi)), ASI_PIXFRAC(asi), ASI_BADVAL(asi))
+
+	default:
+	    call error (0, "ASIVECTOR: Unknown interpolator type.")
+	}
+end