1 /*
2 Teem: Tools to process and visualize scientific data and images .
3 Copyright (C) 2012, 2011, 2010, 2009 University of Chicago
4 Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann
5 Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public License
9 (LGPL) as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11 The terms of redistributing and/or modifying this software also
12 include exceptions to the LGPL that facilitate static linking.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with this library; if not, write to Free Software Foundation, Inc.,
21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include "ten.h"
25 #include "privateTen.h"
26
27 #define PARM_NUM 0
28 static const tenModelParmDesc
29 parmDesc[] = {
30 /* dummy to avoid compiler error */
31 {"dummy", 0.0, 0.0, AIR_FALSE, AIR_FALSE, 0},
32 };
33
34 static void
simulate(double * dwiSim,const double * parm,const tenExperSpec * espec)35 simulate(double *dwiSim, const double *parm, const tenExperSpec *espec) {
36 unsigned int ii;
37
38 AIR_UNUSED(parm);
39 AIR_UNUSED(espec);
40 for (ii=0; ii<espec->imgNum; ii++) {
41 dwiSim[ii] = 0;
42 }
43 return;
44 }
45
46 static char *
parmSprint(char str[AIR_STRLEN_MED],const double * parm)47 parmSprint(char str[AIR_STRLEN_MED], const double *parm) {
48
49 AIR_UNUSED(parm);
50 sprintf(str, "constant 0");
51 return str;
52 }
53
54 static double *
parmAlloc(void)55 parmAlloc(void) {
56
57 return NULL;
58 }
59
60 static void
parmRand(double * parm,airRandMTState * rng,int knownB0)61 parmRand(double *parm, airRandMTState *rng, int knownB0) {
62 AIR_UNUSED(parm);
63 AIR_UNUSED(rng);
64 AIR_UNUSED(knownB0);
65 }
66
67 static void
parmStep(double * parm1,const double scl,const double * grad,const double * parm0)68 parmStep(double *parm1, const double scl,
69 const double *grad, const double *parm0) {
70 AIR_UNUSED(parm1);
71 AIR_UNUSED(scl);
72 AIR_UNUSED(grad);
73 AIR_UNUSED(parm0);
74 }
75
76 static double
parmDist(const double * parmA,const double * parmB)77 parmDist(const double *parmA, const double *parmB) {
78 AIR_UNUSED(parmA);
79 AIR_UNUSED(parmB);
80 return 0.0;
81 }
82
83 static void
parmCopy(double * parmA,const double * parmB)84 parmCopy(double *parmA, const double *parmB) {
85 AIR_UNUSED(parmA);
86 AIR_UNUSED(parmB);
87 }
88
89 static int
parmConvert(double * parmDst,const double * parmSrc,const tenModel * modelSrc)90 parmConvert(double *parmDst, const double *parmSrc,
91 const tenModel *modelSrc) {
92 AIR_UNUSED(parmDst);
93 AIR_UNUSED(parmSrc);
94 AIR_UNUSED(modelSrc);
95 return 0;
96 }
97
98 _TEN_SQE
99
100 static void
sqeGrad(double * grad,const double * parm0,const tenExperSpec * espec,double * dwiBuff,const double * dwiMeas,int knownB0)101 sqeGrad(double *grad, const double *parm0,
102 const tenExperSpec *espec,
103 double *dwiBuff, const double *dwiMeas,
104 int knownB0) {
105 AIR_UNUSED(grad);
106 AIR_UNUSED(parm0);
107 AIR_UNUSED(espec);
108 AIR_UNUSED(dwiBuff);
109 AIR_UNUSED(dwiMeas);
110 AIR_UNUSED(knownB0);
111 }
112
_TEN_SQE_FIT(tenModelZero)113 _TEN_SQE_FIT(tenModelZero)
114
115 _TEN_NLL
116 _TEN_NLL_GRAD_STUB
117
118 static double
119 nllFit(double *parm, const tenExperSpec *espec,
120 const double *dwiMeas, const double *parmInit,
121 int rician, double sigma, int knownB0) {
122 AIR_UNUSED(parm);
123 AIR_UNUSED(espec);
124 AIR_UNUSED(dwiMeas);
125 AIR_UNUSED(parmInit);
126 AIR_UNUSED(rician);
127 AIR_UNUSED(sigma);
128 AIR_UNUSED(knownB0);
129 return AIR_NAN;
130 }
131
132 tenModel
133 _tenModelZero = {
134 TEN_MODEL_STR_ZERO,
135 _TEN_MODEL_FIELDS
136 };
137 const tenModel *const tenModelZero = &_tenModelZero;
138