| 1 | ;; Interpolation allocation, initialization, and freeing. |
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| 2 | ;; Liam Healy, Sun Nov 4 2007 - 17:24 |
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| 3 | ;; Time-stamp: <2008-02-17 17:45:18EST interpolation.lisp> |
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| 4 | ;; $Id$ |
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| 5 | |
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| 6 | (in-package :gsl) |
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| 7 | |
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| 8 | ;;; A spline is an interpolation that also stores the arrays xa and ya, |
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| 9 | ;;; so they need not be supplied on each call. |
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| 10 | |
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| 11 | (defgo interpolation (type xa-or-size &optional ya) |
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| 12 | (list |
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| 13 | `(allocate-interpolation ,type ,(if ya `(dim0 ,ya) xa-or-size)) |
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| 14 | 'free-spline |
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| 15 | (when ya |
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| 16 | (lambda (symb) |
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| 17 | `(initialize-interpolation ,symb ,xa-or-size ,ya))))) |
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| 18 | |
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| 19 | ;;; Interpolation |
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| 20 | (defmfun allocate-interpolation (type size) |
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| 21 | "gsl_interp_alloc" |
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| 22 | ((type :pointer) (size size)) |
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| 23 | :c-return :pointer |
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| 24 | :export nil |
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| 25 | :index (letm interpolation) |
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| 26 | :documentation ; FDL |
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| 27 | "Allocate an interpolation object of type for size data-points, |
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| 28 | and return the pointer to it.") |
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| 29 | |
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| 30 | (defmfun initialize-interpolation (interpolation xa ya) |
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| 31 | "gsl_interp_init" |
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| 32 | ((interpolation :pointer) |
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| 33 | ((gsl-array xa) :pointer) ((gsl-array ya) :pointer) ((dim0 xa) size)) |
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| 34 | :documentation ; FDL |
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| 35 | "Initialize the interpolation object interp for the |
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| 36 | data (xa,ya) where xa and ya are gsl-arrays. The interpolation object does not save |
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| 37 | the data arrays xa and ya and only stores the static state |
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| 38 | computed from the data. The xa data array is always assumed to be |
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| 39 | strictly ordered; the behavior for other arrangements is not defined.") |
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| 40 | |
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| 41 | (defmfun free-interpolation (interpolation) |
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| 42 | "gsl_interp_free" |
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| 43 | ((interpolation :pointer)) |
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| 44 | :c-return :void |
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| 45 | :export nil |
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| 46 | :index (letm interpolation) |
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| 47 | :documentation ; FDL |
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| 48 | "Frees the interpolation object interp.") |
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| 49 | |
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| 50 | (defgo spline (type xa-or-size &optional ya) |
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| 51 | (list |
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| 52 | `(allocate-spline ,type ,(if ya `(dim0 ,ya) xa-or-size)) |
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| 53 | 'free-spline |
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| 54 | (when ya |
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| 55 | (lambda (symb) |
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| 56 | `(initialize-spline ,symb ,xa-or-size ,ya))))) |
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| 57 | |
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| 58 | ;;; Spline |
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| 59 | (defmfun allocate-spline (type size) |
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| 60 | "gsl_spline_alloc" |
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| 61 | ((type :pointer) (size size)) |
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| 62 | :c-return :pointer |
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| 63 | :documentation ; FDL |
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| 64 | "Allocate an interpolation object of type for size data-points, |
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| 65 | and return the pointer to it.") |
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| 66 | |
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| 67 | (defmfun initialize-spline (interpolation xa ya) |
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| 68 | "gsl_spline_init" |
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| 69 | ((interpolation :pointer) |
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| 70 | ((gsl-array xa) :pointer) ((gsl-array ya) :pointer) ((dim0 xa) size)) |
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| 71 | :documentation ; FDL |
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| 72 | "Initialize the interpolation object interp for the |
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| 73 | data (xa,ya) where xa and ya are gsl-arrays. The spline object saves |
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| 74 | the data arrays xa and ya computed from the data. |
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| 75 | The xa data array is always assumed to be |
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| 76 | strictly ordered; the behavior for other arrangements is not defined.") |
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| 77 | |
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| 78 | (defmfun free-spline (interpolation) |
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| 79 | "gsl_spline_free" |
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| 80 | ((interpolation :pointer)) |
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| 81 | :c-return :void |
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| 82 | :documentation ; FDL |
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| 83 | "Frees the spline object.") |
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