/*!

\if MANPAGES
\page dcmmkcrv Add 2D curve data to image
\else
\page dcmmkcrv dcmmkcrv: Add 2D curve data to image
\endif

\section dcmmkcrv_synopsis SYNOPSIS

\verbatim
dcmmkcrv [options] dcmfile-in curvedata-in dcmfile-out
\endverbatim

\section dcmmkcrv_description DESCRIPTION

The \b dcmmkcrv utility allows one to create DICOM images containing curve data.
Since curve data is hardly used by vendors today, this is intended as a
means to test implementations that can read curve data.  The utility reads an
existing DICOM image and a text file containing the curve data in textual
form.  A DICOM curve data repeating group is created according to the
options specified on the command line, added to the existing image and
written back to file.  The output file is encoded with the same transfer
syntax used for the input file.  This utility only supports the creation of
two-dimensional curves.

\section dcmmkcrv_parameters PARAMETERS

\verbatim
dcmfile-in    DICOM input image file ("-" for stdin)

curvedata-in  curve data input file (text)

dcmfile-out   DICOM output filename ("-" for stdout)
\endverbatim

\section dcmmkcrv_options OPTIONS

\subsection dcmmkcrv_general_options general options

\verbatim
  -h   --help
         print this help text and exit

       --version
         print version information and exit

       --arguments
         print expanded command line arguments

  -q   --quiet
         quiet mode, print no warnings and errors

  -v   --verbose
         verbose mode, print processing details

  -d   --debug
         debug mode, print debug information

  -ll  --log-level  [l]evel: string constant
         (fatal, error, warn, info, debug, trace)
         use level l for the logger

  -lc  --log-config  [f]ilename: string
         use config file f for the logger
\endverbatim

\subsection dcmmkcrv_curve_creation_options curve creation options

\verbatim
curve type:

  -r  --poly
        create as POLY curve (default)

  +r  --roi
        create as ROI curve

curve value representation:

  +v  --data-vr  [n]umber: integer 0..4 (default: 4)
        select curve data VR: 0=US, 1=SS, 2=FL, 3=FD, 4=SL

  -c  --curve-vr  [n]umber: integer 0..2 (default: 0)
        select VR with which the Curve Data element is written
        0=VR according to --data-vr, 1=OB, 2=OW

repeating group:

  -g  --group  [n]umber: integer 0..15 (default: 0)
        select repeating group: 0=0x5000, 1=0x5002 etc.

curve description:

  -l  --label  s: string
        set Curve Label to s (default: absent)

  +d  --description  s: string
        set Curve Description to s (default: absent)

  -a  --axis  x: string, y: string
        set Axis Units to x\y (default: absent)
\endverbatim

\section dcmmkcrv_notes NOTES

\subsection dcmmkcrv_syntax_data_file Syntax of the Curve Data File

The curve data file is expected to be a plain ASCII text file containing
numbers (integer or floating point) comprising the values of the point
coordinates.  Numbers must be separated by whitespace.  No checking of the
value range or value range conversion is performed.  Example:

\verbatim
 256.451947    1.000000
 477.689863  128.822080
 128.822080  477.689863
  35.310137  128.822080
 256.451947    1.000000
\endverbatim

\section dcmmkcrv_logging LOGGING

The level of logging output of the various command line tools and underlying
libraries can be specified by the user.  By default, only errors and warnings
are written to the standard error stream.  Using option \e --verbose also
informational messages like processing details are reported.  Option
\e --debug can be used to get more details on the internal activity, e.g. for
debugging purposes.  Other logging levels can be selected using option
\e --log-level.  In \e --quiet mode only fatal errors are reported.  In such
very severe error events, the application will usually terminate.  For more
details on the different logging levels, see documentation of module "oflog".

In case the logging output should be written to file (optionally with logfile
rotation), to syslog (Unix) or the event log (Windows) option \e --log-config
can be used.  This configuration file also allows for directing only certain
messages to a particular output stream and for filtering certain messages
based on the module or application where they are generated.  An example
configuration file is provided in <em>\<etcdir\>/logger.cfg</em>.

\section dcmmkcrv_command_line COMMAND LINE

All command line tools use the following notation for parameters: square
brackets enclose optional values (0-1), three trailing dots indicate that
multiple values are allowed (1-n), a combination of both means 0 to n values.

Command line options are distinguished from parameters by a leading '+' or '-'
sign, respectively.  Usually, order and position of command line options are
arbitrary (i.e. they can appear anywhere).  However, if options are mutually
exclusive the rightmost appearance is used.  This behavior conforms to the
standard evaluation rules of common Unix shells.

In addition, one or more command files can be specified using an '@' sign as a
prefix to the filename (e.g. <em>\@command.txt</em>).  Such a command argument
is replaced by the content of the corresponding text file (multiple
whitespaces are treated as a single separator unless they appear between two
quotation marks) prior to any further evaluation.  Please note that a command
file cannot contain another command file.  This simple but effective approach
allows one to summarize common combinations of options/parameters and avoids
longish and confusing command lines (an example is provided in file
<em>\<datadir\>/dumppat.txt</em>).

\section dcmmkcrv_environment ENVIRONMENT

The \b dcmmkcrv utility will attempt to load DICOM data dictionaries specified
in the \e DCMDICTPATH environment variable.  By default, i.e. if the
\e DCMDICTPATH environment variable is not set, the file
<em>\<datadir\>/dicom.dic</em> will be loaded unless the dictionary is built
into the application (default for Windows).

The default behavior should be preferred and the \e DCMDICTPATH environment
variable only used when alternative data dictionaries are required.  The
\e DCMDICTPATH environment variable has the same format as the Unix shell
\e PATH variable in that a colon (":") separates entries.  On Windows systems,
a semicolon (";") is used as a separator.  The data dictionary code will
attempt to load each file specified in the \e DCMDICTPATH environment variable.
It is an error if no data dictionary can be loaded.

\section dcmmkcrv_copyright COPYRIGHT

Copyright (C) 1998-2024 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.

*/
