octave-nkf: libinterp/corefcn/__lin_interpn_

annotate libinterp/corefcn/__lin_interpn__.cc @ 15880:df1aceb8f0bc ss-3-7-1

snapshot version 3.7.1 * configure.ac (AC_INIT): Set version to 3.7.1. (OCTAVE_RELEASE_DATE): Set to 2013-01-02.

author	John W. Eaton <jwe@octave.org>
date	Wed, 02 Jan 2013 15:16:08 -0500
parents	2fc554ffbc28
children	d63878346099

rev	line source
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	1 /*
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	2
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 12805 diff changeset	3 Copyright (C) 2007-2012 Alexander Barth
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	4
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	5 This file is part of Octave.
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	6
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	8 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6945 diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6945 diff changeset	10 option) any later version.
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	11
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	15 for more details.
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	16
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	17 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6945 diff changeset	18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6945 diff changeset	19 <http://www.gnu.org/licenses/>.
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	20
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	21 */
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	22
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	23 #ifdef HAVE_CONFIG_H
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	24 #include <config.h>
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	25 #endif
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	26
9003 0631d397fbe0 replace lo_ieee_isnan by xisnan, add missing includes Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	27 #include "lo-ieee.h"
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	28 #include "dNDArray.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	29 #include "oct-locbuf.h"
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	30
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14846 diff changeset	31 #include "defun.h"
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	32 #include "error.h"
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	33 #include "oct-obj.h"
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	34
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	35 // equivalent to isvector.m
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	36
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	37 template <class T>
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	38 bool
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	39 isvector (const T& array)
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	40 {
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	41 const dim_vector dv = array.dims ();
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	42 return dv.length () == 2 && (dv(0) == 1 \|\| dv(1) == 1);
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	43 }
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	44
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	45 // lookup a value in a sorted table (lookup.m)
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	46 template <class T>
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	47 octave_idx_type
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	48 lookup (const T *x, octave_idx_type n, T y)
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	49 {
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	50 octave_idx_type j;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	51
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	52 if (x[0] < x[n-1])
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	53 {
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	54 // increasing x
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	55
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	56 if (y > x[n-1] \|\| y < x[0])
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	57 return -1;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	58
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	59 #ifdef EXHAUSTIF
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	60 for (j = 0; j < n - 1; j++)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	61 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	62 if (x[j] <= y && y <= x[j+1])
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	63 return j;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	64 }
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	65 #else
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	66 octave_idx_type j0 = 0;
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	67 octave_idx_type j1 = n - 1;
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	68
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	69 while (true)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	70 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	71 j = (j0+j1)/2;
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	72
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	73 if (y <= x[j+1])
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	74 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	75 if (x[j] <= y)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	76 return j;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	77
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	78 j1 = j;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	79 }
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	80
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	81 if (x[j] <= y)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	82 j0 = j;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	83 }
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	84 #endif
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	85 }
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	86 else
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	87 {
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	88 // decreasing x
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	89 // previous code with x -> -x and y -> -y
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	90
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	91 if (y > x[0] \|\| y < x[n-1])
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	92 return -1;
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	93
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	94 #ifdef EXHAUSTIF
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	95 for (j = 0; j < n - 1; j++)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	96 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	97 if (x[j+1] <= y && y <= x[j])
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	98 return j;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	99 }
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	100 #else
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	101 octave_idx_type j0 = 0;
a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	102 octave_idx_type j1 = n - 1;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	103
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	104 while (true)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	105 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	106 j = (j0+j1)/2;
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	107
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	108 if (y >= x[j+1])
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	109 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	110 if (x[j] >= y)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	111 return j;
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	112
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	113 j1 = j;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	114 }
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	115
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	116 if (x[j] >= y)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	117 j0 = j;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	118 }
7561 a938cd7869b2 __lin_interpn__.cc: handle decreasing coordinate values Alexander Barth parents: 7016 diff changeset	119 #endif
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	120 }
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	121 }
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	122
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	123 // n-dimensional linear interpolation
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	124
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	125 template <class T>
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	126 void
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	127 lin_interpn (int n, const octave_idx_type size, const octave_idx_type scale,
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	128 octave_idx_type Ni, T extrapval, const T **x,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	129 const T v, const T y, T vi)
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	130 {
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	131 bool out = false;
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	132 int bit;
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	133
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	134 OCTAVE_LOCAL_BUFFER (T, coef, 2*n);
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	135 OCTAVE_LOCAL_BUFFER (octave_idx_type, index, n);
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	136
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	137 // loop over all points
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	138 for (octave_idx_type m = 0; m < Ni; m++)
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	139 {
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	140 // loop over all dimensions
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	141 for (int i = 0; i < n; i++)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	142 {
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	143 index[i] = lookup (x[i], size[i], y[i][m]);
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	144 out = index[i] == -1;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	145
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	146 if (out)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	147 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	148 else
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	149 {
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	150 octave_idx_type j = index[i];
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	151 coef[2*i+1] = (y[i][m] - x[i][j])/(x[i][j+1] - x[i][j]);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	152 coef[2i] = 1 - coef[2i+1];
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	153 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	154 }
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	155
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	156
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	157 if (out)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	158 vi[m] = extrapval;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	159 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	160 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	161 vi[m] = 0;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	162
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	163 // loop over all corners of hypercube (1<<n = 2^n)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	164 for (int i = 0; i < (1 << n); i++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	165 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	166 T c = 1;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	167 octave_idx_type l = 0;
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	168
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	169 // loop over all dimensions
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	170 for (int j = 0; j < n; j++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	171 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	172 // test if the jth bit in i is set
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	173 bit = i >> j & 1;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	174 l += scale[j] * (index[j] + bit);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	175 c = coef[2j+bit];
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	176 }
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	177
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	178 vi[m] += c * v[l];
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	179 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	180 }
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	181 }
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	182 }
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	183
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	184 template <class T, class M>
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	185 octave_value
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	186 lin_interpn (int n, M X, const M V, M Y)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	187 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	188 octave_value retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	189
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	190 M Vi = M (Y[0].dims ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	191
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	192 OCTAVE_LOCAL_BUFFER (const T *, y, n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	193 OCTAVE_LOCAL_BUFFER (octave_idx_type, size, n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	194
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	195 for (int i = 0; i < n; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	196 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	197 y[i] = Y[i].data ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14501 diff changeset	198 size[i] = V.dims ()(i);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	199 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	200
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	201 OCTAVE_LOCAL_BUFFER (const T *, x, n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	202 OCTAVE_LOCAL_BUFFER (octave_idx_type, scale, n);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	203
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	204 const T *v = V.data ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	205 T *vi = Vi.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	206 octave_idx_type Ni = Vi.numel ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	207
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	208 T extrapval = octave_NA;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	209
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	210 // offset in memory of each dimension
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	211
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	212 scale[0] = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	213
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	214 for (int i = 1; i < n; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	215 scale[i] = scale[i-1] * size[i-1];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	216
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	217 // tests if X[0] is a vector, if yes, assume that all elements of X are
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	218 // in the ndgrid format.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	219
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	220 if (! isvector (X[0]))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	221 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	222 for (int i = 0; i < n; i++)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	223 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	224 if (X[i].dims () != V.dims ())
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	225 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	226 error ("interpn: incompatible size of argument number %d", i+1);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	227 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	228 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	229 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	230 {
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	231 M tmp = M (dim_vector (size[i], 1));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	232
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	233 for (octave_idx_type j = 0; j < size[i]; j++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	234 tmp(j) = X[i](scale[i]*j);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	235
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	236 X[i] = tmp;
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	237 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	238 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	239 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	240
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	241 for (int i = 0; i < n; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	242 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	243 if (! isvector (X[i]) && X[i].numel () != size[i])
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	244 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	245 error ("interpn: incompatible size of argument number %d", i+1);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	246 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	247 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	248 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	249 x[i] = X[i].data ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	250 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	251
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	252 lin_interpn (n, size, scale, Ni, extrapval, x, v, y, vi);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	253
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	254 retval = Vi;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	255
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	256 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	257 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	258
6945 6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	259 // Perform @var{n}-dimensional interpolation. Each element of then
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	260 // @var{n}-dimensional array @var{v} represents a value at a location
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	261 // given by the parameters @var{x1}, @var{x2},...,@var{xn}. The parameters
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	262 // @var{x1}, @var{x2}, @dots{}, @var{xn} are either @var{n}-dimensional
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	263 // arrays of the same size as the array @var{v} in the \"ndgrid\" format
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	264 // or vectors. The parameters @var{y1}, @var{y2}, @dots{}, @var{yn} are
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	265 // all @var{n}-dimensional arrays of the same size and represent the
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	266 // points at which the array @var{vi} is interpolated.
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	267 //
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	268 //This function only performs linear interpolation.
6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	269
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14846 diff changeset	270 DEFUN (__lin_interpn__, args, ,
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	271 "-- texinfo --\n\
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14846 diff changeset	272 @deftypefn {Built-in Function} {@var{vi} =} __lin_interpn__ (@var{x1}, @var{x2}, @dots{}, @var{xn}, @var{v}, @var{y1}, @var{y2}, @dots{}, @var{yn})\n\
6945 6bbf56a9718a [project @ 2007-10-02 20:47:22 by jwe] jwe parents: 6742 diff changeset	273 Undocumented internal function.\n\
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	274 @end deftypefn")
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	275 {
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	276 octave_value retval;
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	277
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	278 int nargin = args.length ();
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	279
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	280 if (nargin < 2 \|\| nargin % 2 == 0)
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	281 {
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	282 print_usage ();
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	283 return retval;
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	284 }
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	285
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	286 // dimension of the problem
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	287 int n = (nargin-1)/2;
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	288
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14501 diff changeset	289 if (args(n).is_single_type ())
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	290 {
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	291 OCTAVE_LOCAL_BUFFER (FloatNDArray, X, n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	292 OCTAVE_LOCAL_BUFFER (FloatNDArray, Y, n);
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	293
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	294 const FloatNDArray V = args(n).float_array_value ();
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	295
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	296 if (error_state)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	297 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	298 print_usage ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	299 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	300 }
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	301
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	302 for (int i = 0; i < n; i++)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	303 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	304 X[i] = args(i).float_array_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	305 Y[i] = args(n+i+1).float_array_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	306
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	307 if (error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	308 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	309 print_usage ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	310 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	311 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	312
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	313 if (Y[0].dims () != Y[i].dims ())
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	314 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	315 error ("interpn: incompatible size of argument number %d", n+i+2);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	316 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	317 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	318 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	319
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	320 retval = lin_interpn<float, FloatNDArray> (n, X, V, Y);
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	321 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	322 else
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	323 {
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	324 OCTAVE_LOCAL_BUFFER (NDArray, X, n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	325 OCTAVE_LOCAL_BUFFER (NDArray, Y, n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	326
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	327 const NDArray V = args(n).array_value ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	328
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	329 if (error_state)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	330 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	331 print_usage ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	332 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	333 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	334
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	335 for (int i = 0; i < n; i++)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	336 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	337 X[i] = args(i).array_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	338 Y[i] = args(n+i+1).array_value ();
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	339
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	340 if (error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	341 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	342 print_usage ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	343 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	344 }
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	345
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	346 if (Y[0].dims () != Y[i].dims ())
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	347 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	348 error ("interpn: incompatible size of argument number %d", n+i+2);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	349 return retval;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	350 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9003 diff changeset	351 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	352
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	353 retval = lin_interpn<double, NDArray> (n, X, V, Y);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7561 diff changeset	354 }
6702 b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	355
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	356 return retval;
b2391d403ed2 [project @ 2007-06-12 21:39:26 by dbateman] dbateman parents: diff changeset	357 }
12805 3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11586 diff changeset	358
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11586 diff changeset	359 /*
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11586 diff changeset	360 ## No test needed for internal helper function.
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11586 diff changeset	361 %!assert (1)
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11586 diff changeset	362 */

Mercurial > hg > octave-nkf

annotate libinterp/corefcn/__lin_interpn__.cc @ 15880:df1aceb8f0bc ss-3-7-1