GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: src/unrrdu/rmap.c Lines: 19 40 47.5 %
Date: 2017-05-26 Branches: 1 22 4.5 %

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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 "Map nrrd through one *regular* univariate map (\"colormap\")"
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static const char *_unrrdu_rmapInfoL =
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(INFO
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 ". A map is regular if the control points are evenly "
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 "spaced along the domain, and hence their position isn't "
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 "explicitly represented in the map; the axis min, axis "
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 "max, and number of points determine their location. "
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 "The map can be a 1D nrrd (for \"grayscale\"), "
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 "in which case the "
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 "output has the same dimension as the input, "
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 "or a 2D nrrd (for \"color\"), in which case "
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 "the output has one more dimension than the input.  In "
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 "either case, the output is the result of linearly "
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 "interpolating between map points, either scalar values "
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 "(\"grayscale\"), or scanlines along axis 0 "
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 "(\"color\").\n "
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 "* Uses nrrdApply1DRegMap");
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int
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unrrdu_rmapMain(int argc, const char **argv, const char *me,
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                hestParm *hparm) {
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2
  hestOpt *opt = NULL;
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1
  char *out, *err;
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1
  Nrrd *nin, *nmap, *nout;
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  airArray *mop;
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  NrrdRange *range=NULL;
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  int typeOut, rescale, pret, blind8BitRange;
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  double min, max;
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  hestOptAdd(&opt, "m,map", "map", airTypeOther, 1, 1, &nmap, NULL,
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             "regular map to map input nrrd through",
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             NULL, NULL, nrrdHestNrrd);
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  hestOptAdd(&opt, "r,rescale", NULL, airTypeInt, 0, 0, &rescale, NULL,
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             "rescale the input values from the input range to the "
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             "map domain.  The map domain is either explicitly "
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             "defined by the axis min,max along axis 0 or 1, or, it "
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             "is implicitly defined as zero to the length of "
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             "that axis minus one.");
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  hestOptAdd(&opt, "min,minimum", "value", airTypeDouble, 1, 1, &min, "nan",
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             "Low end of input range. Defaults to lowest value "
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             "found in input nrrd.  Explicitly setting this is useful "
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             "only with rescaling (\"-r\") or if the map domain is only "
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             "implicitly defined");
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  hestOptAdd(&opt, "max,maximum", "value", airTypeDouble, 1, 1, &max, "nan",
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             "High end of input range. Defaults to highest value "
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             "found in input nrrd.  Explicitly setting this is useful "
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             "only with rescaling (\"-r\") or if the map domain is only "
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             "implicitly defined");
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  hestOptAdd(&opt, "blind8", "bool", airTypeBool, 1, 1, &blind8BitRange,
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             nrrdStateBlind8BitRange ? "true" : "false",
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             "Whether to know the range of 8-bit data blindly "
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             "(uchar is always [0,255], signed char is [-128,127]). "
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             "Explicitly setting this is useful "
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             "only with rescaling (\"-r\") or if the map domain is only "
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             "implicitly defined");
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  hestOptAdd(&opt, "t,type", "type", airTypeOther, 1, 1, &typeOut, "default",
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             "specify the type (\"int\", \"float\", etc.) of the "
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             "output nrrd. "
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             "By default (not using this option), the output type "
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             "is the map's type.",
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             NULL, NULL, &unrrduHestMaybeTypeCB);
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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_rmapInfoL);
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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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  /* here is a big difference between unu and nrrd: we enforce
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     rescaling any time that the map domain is implicit.  This
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     is how the pre-1.6 functionality is recreated.  Also, whenever
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     there is rescaling we pass a NrrdRange to reflect the (optional)
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     user range specification, instead of letting nrrdApply1DRegMap
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     find the input range itself (by passing a NULL NrrdRange).
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  */
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  if (!( AIR_EXISTS(nmap->axis[nmap->dim - 1].min) &&
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         AIR_EXISTS(nmap->axis[nmap->dim - 1].max) )) {
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    rescale = AIR_TRUE;
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  }
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  if (rescale) {
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    range = nrrdRangeNew(min, max);
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    airMopAdd(mop, range, (airMopper)nrrdRangeNix, airMopAlways);
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    nrrdRangeSafeSet(range, nin, blind8BitRange);
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  }
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  if (nrrdTypeDefault == typeOut) {
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    typeOut = nmap->type;
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  }
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  if (nrrdApply1DRegMap(nout, nin, range, nmap, typeOut, rescale)) {
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    airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
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    fprintf(stderr, "%s: trouble applying map:\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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1
}
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UNRRDU_CMD(rmap, INFO);