Branch data Line data Source code
1 : : /*
2 : : * ifile.cpp - file based current source class implementation
3 : : *
4 : : * Copyright (C) 2007, 2008, 2009 Stefan Jahn <stefan@lkcc.org>
5 : : *
6 : : * This is free software; you can redistribute it and/or modify
7 : : * it under the terms of the GNU General Public License as published by
8 : : * the Free Software Foundation; either version 2, or (at your option)
9 : : * any later version.
10 : : *
11 : : * This software is distributed in the hope that it will be useful,
12 : : * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 : : * GNU General Public License for more details.
15 : : *
16 : : * You should have received a copy of the GNU General Public License
17 : : * along with this package; see the file COPYING. If not, write to
18 : : * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
19 : : * Boston, MA 02110-1301, USA.
20 : : *
21 : : * $Id$
22 : : *
23 : : */
24 : :
25 : : #if HAVE_CONFIG_H
26 : : # include <config.h>
27 : : #endif
28 : :
29 : : #include "component.h"
30 : : #include "dataset.h"
31 : : #include "poly.h"
32 : : #include "spline.h"
33 : : #include "interpolator.h"
34 : : #include "ifile.h"
35 : :
36 : : using namespace qucs;
37 : :
38 : : // Constructor creates ifile object in memory.
39 : 0 : ifile::ifile () : circuit (2) {
40 : 0 : type = CIR_IFILE;
41 : 0 : setISource (true);
42 : 0 : interpolType = dataType = 0;
43 : 0 : data = NULL;
44 : 0 : inter = NULL;
45 : 0 : }
46 : :
47 : : // Destructor deletes ifile object from memory.
48 : 0 : ifile::~ifile () {
49 [ # # ][ # # ]: 0 : if (data) delete data;
[ # # ][ # # ]
[ # # ][ # # ]
50 [ # # ][ # # ]: 0 : if (inter) delete inter;
[ # # ][ # # ]
[ # # ][ # # ]
51 [ # # ][ # # ]: 0 : }
52 : :
53 : 0 : void ifile::prepare (void) {
54 : :
55 : : // check type of interpolator
56 : 0 : const char * itype = getPropertyString ("Interpolator");
57 [ # # ]: 0 : if (!strcmp (itype, "linear")) {
58 : 0 : interpolType = INTERPOL_LINEAR;
59 [ # # ]: 0 : } else if (!strcmp (itype, "cubic")) {
60 : 0 : interpolType = INTERPOL_CUBIC;
61 [ # # ]: 0 : } else if (!strcmp (itype, "hold")) {
62 : 0 : interpolType = INTERPOL_HOLD;
63 : : }
64 : :
65 : : // check type of repetition
66 : 0 : const char * rtype = getPropertyString ("Repeat");
67 [ # # ]: 0 : if (!strcmp (rtype, "no")) {
68 : : // rectangular data
69 : 0 : dataType = REPEAT_NO;
70 [ # # ]: 0 : } else if (!strcmp (rtype, "yes")) {
71 : : // polar data
72 : 0 : dataType = REPEAT_YES;
73 : : }
74 : :
75 : : // load file with samples
76 : 0 : const char * file = getPropertyString ("File");
77 [ # # ]: 0 : if (data == NULL) {
78 [ # # ][ # # ]: 0 : if (strlen (file) > 4 && !strcasecmp (&file[strlen (file) - 4], ".dat"))
79 : 0 : data = dataset::load (file);
80 : : else
81 : 0 : data = dataset::load_csv (file);
82 [ # # ]: 0 : if (data != NULL) {
83 : : // check number of variables / dependencies defined by that file
84 [ # # ][ # # ]: 0 : if (data->countVariables () != 1 || data->countDependencies () != 1) {
[ # # ]
85 : : logprint (LOG_ERROR, "ERROR: file `%s' must have time as an "
86 : : "independent and the current source samples as dependents\n",
87 : 0 : file);
88 : 0 : return;
89 : : }
90 : 0 : qucs::vector * is = data->getVariables(); // current
91 : 0 : qucs::vector * ts = data->getDependencies(); // time
92 [ # # ]: 0 : inter = new interpolator ();
93 : 0 : inter->rvectors (is, ts);
94 : 0 : inter->prepare (interpolType, dataType);
95 : : }
96 : : }
97 : : }
98 : :
99 : 0 : void ifile::initSP (void) {
100 : 0 : allocMatrixS ();
101 [ # # ]: 0 : setS (NODE_1, NODE_1, 1.0);
102 [ # # ]: 0 : setS (NODE_1, NODE_2, 0.0);
103 [ # # ]: 0 : setS (NODE_2, NODE_1, 0.0);
104 [ # # ]: 0 : setS (NODE_2, NODE_2, 1.0);
105 : 0 : }
106 : :
107 : 0 : void ifile::initDC (void) {
108 : 0 : allocMatrixMNA ();
109 : 0 : prepare ();
110 : 0 : }
111 : :
112 : 0 : void ifile::initAC (void) {
113 : 0 : initDC ();
114 : 0 : }
115 : :
116 : 0 : void ifile::initTR (void) {
117 : 0 : initDC ();
118 : 0 : }
119 : :
120 : 0 : void ifile::calcTR (nr_double_t t) {
121 : 0 : nr_double_t G = getPropertyDouble ("G");
122 : 0 : nr_double_t T = getPropertyDouble ("T");
123 : 0 : nr_double_t i = inter->rinterpolate (t - T);
124 [ # # ][ # # ]: 0 : setI (NODE_1, +G * i); setI (NODE_2, -G * i);
125 : 0 : }
126 : :
127 : : // properties
128 : : PROP_REQ [] = {
129 : : { "File", PROP_STR, { PROP_NO_VAL, "ifile.dat" }, PROP_NO_RANGE },
130 : : PROP_NO_PROP };
131 : : PROP_OPT [] = {
132 : : { "Interpolator", PROP_STR, { PROP_NO_VAL, "linear" },
133 : : PROP_RNG_STR3 ("hold", "linear", "cubic") },
134 : : { "Repeat", PROP_STR, { PROP_NO_VAL, "no" }, PROP_RNG_YESNO },
135 : : { "G", PROP_REAL, { 1, PROP_NO_STR }, PROP_NO_RANGE },
136 : : { "T", PROP_REAL, { 0, PROP_NO_STR }, PROP_POS_RANGE },
137 : : PROP_NO_PROP };
138 : : struct define_t ifile::cirdef =
139 : : { "Ifile", 2, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF };
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