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/* |
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Teem: Tools to process and visualize scientific data and images . |
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Copyright (C) 2013, 2012, 2011, 2010, 2009 University of Chicago |
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Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann |
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Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public License |
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(LGPL) as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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The terms of redistributing and/or modifying this software also |
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include exceptions to the LGPL that facilitate static linking. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public License |
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along with this library; if not, write to Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "ten.h" |
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#include "privateTen.h" |
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#define PARM_NUM 5 |
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static const tenModelParmDesc |
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parmDesc[] = { |
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/* 0 */ {"B0", 0.0, TEN_MODEL_B0_MAX, AIR_FALSE, AIR_FALSE, 0}, |
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/* 1 */ {"diffusivity", 0.0, TEN_MODEL_DIFF_MAX, AIR_FALSE, AIR_FALSE, 0}, |
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/* 2 */ {"x", -1.0, 1.0, AIR_FALSE, AIR_TRUE, 0}, |
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/* 3 */ {"y", -1.0, 1.0, AIR_FALSE, AIR_TRUE, 1}, |
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/* 4 */ {"z", -1.0, 1.0, AIR_FALSE, AIR_TRUE, 2} |
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}; |
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static void |
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simulate(double *dwiSim, const double *parm, const tenExperSpec *espec) { |
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unsigned int ii; |
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double b0, diff, vec[3]; |
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b0 = parm[0]; |
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diff = parm[1]; |
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vec[0] = parm[2]; |
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vec[1] = parm[3]; |
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vec[2] = parm[4]; |
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for (ii=0; ii<espec->imgNum; ii++) { |
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double dot; |
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dot = ELL_3V_DOT(vec, espec->grad + 3*ii); |
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dwiSim[ii] = b0*exp(-espec->bval[ii]*diff*dot*dot); |
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} |
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return; |
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} |
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static char * |
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parmSprint(char str[AIR_STRLEN_MED], const double *parm) { |
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sprintf(str, "(%g) %g (%g,%g,%g)", parm[0], parm[1], |
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parm[2], parm[3], parm[4]); |
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return str; |
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} |
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_TEN_PARM_ALLOC |
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_TEN_PARM_RAND |
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_TEN_PARM_STEP |
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_TEN_PARM_DIST |
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_TEN_PARM_COPY |
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_TEN_PARM_CONVERT_NOOP |
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_TEN_SQE |
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_TEN_SQE_GRAD_CENTDIFF |
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_TEN_SQE_FIT(tenModel1Stick) |
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_TEN_NLL |
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_TEN_NLL_GRAD_STUB |
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_TEN_NLL_FIT_STUB |
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tenModel |
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_tenModel1Stick = { |
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TEN_MODEL_STR_1STICK, |
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_TEN_MODEL_FIELDS |
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}; |
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const tenModel *const tenModel1Stick = &_tenModel1Stick; |