GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: src/unrrdu/dhisto.c Lines: 16 30 53.3 %
Date: 2017-05-26 Branches: 1 16 6.2 %

Line Branch Exec Source
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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 "unrrdu.h"
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#include "privateUnrrdu.h"
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#define INFO "Create image of 1-D value histogram"
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static const char *_unrrdu_dhistoInfoL =
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  (INFO
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   ". With \"-nolog\", this becomes a quick & dirty way of plotting a function.\n "
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   "* Uses nrrdHistoDraw");
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int
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unrrdu_dhistoMain(int argc, const char **argv, const char *me,
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                  hestParm *hparm) {
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  hestOpt *opt = NULL;
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  char *out, *err;
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  Nrrd *nin, *nout;
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  int pret, nolog, notick;
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  unsigned int size;
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  airArray *mop;
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  double max;
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  hestOptAdd(&opt, "h,height", "height", airTypeUInt, 1, 1, &size, NULL,
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             "height of output image (horizontal size is determined by "
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             "number of bins in input histogram).");
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  hestOptAdd(&opt, "nolog", NULL, airTypeInt, 0, 0, &nolog, NULL,
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             "do not show the log-scaled histogram with decade tick-marks");
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  hestOptAdd(&opt, "notick", NULL, airTypeInt, 0, 0, &notick, NULL,
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             "do not draw the log decade tick marks");
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  hestOptAdd(&opt, "max,maximum", "max # hits", airTypeDouble, 1, 1,
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             &max, "nan",
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             "constrain the top of the drawn histogram to be at this "
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             "number of hits.  This will either scale the drawn histogram "
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             "downward or clip its top, depending on whether the given max "
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             "is higher or lower than the actual maximum bin count.  By "
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             "not using this option (the default), the actual maximum bin "
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             "count is used");
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  OPT_ADD_NIN(nin, "input nrrd");
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  OPT_ADD_NOUT(out, "output nrrd");
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  mop = airMopNew();
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  airMopAdd(mop, opt, (airMopper)hestOptFree, airMopAlways);
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  USAGE(_unrrdu_dhistoInfoL);
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  PARSE();
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  airMopAdd(mop, opt, (airMopper)hestParseFree, airMopAlways);
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  nout = nrrdNew();
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  airMopAdd(mop, nout, (airMopper)nrrdNuke, airMopAlways);
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  if (nrrdHistoDraw(nout, nin, size,
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                    nolog ? AIR_FALSE : (notick ? 2 : AIR_TRUE),
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                    max)) {
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    airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
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    fprintf(stderr, "%s: error drawing histogram nrrd:\n%s", me, err);
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    airMopError(mop);
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    return 1;
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  }
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  SAVE(out, nout, NULL);
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  airMopOkay(mop);
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  return 0;
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}
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UNRRDU_CMD(dhisto, INFO);