DCMTK: stl2dcm: Encapsulate STL file into DICOM file format

DCMTK Version 3.6.9 OFFIS DICOM Toolkit

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stl2dcm: Encapsulate STL file into DICOM file format

# SYNOPSIS

    stl2dcm [options] stlfile-in dcmfile-out

# DESCRIPTION

The stl2dcm utility reads a STL file (stlfile-in), converts it to a DICOM Encapsulated STL Storage SOP instance and stores the converted data to an output file (dcmfile-out).

# PARAMETERS

    stlfile-in   STL input filename to be encapsulated

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

# OPTIONS

## general options

      -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

## DICOM document options

    document title:

      +t   --title  [t]itle: string (default: empty)
             document title

      +cn  --concept-name  [CSD] [CV] [CM]: string (default: empty)
             coded representation of document title defined by coding
             scheme designator CSD, code value CV and code meaning CM

    patient data:

      +pn  --patient-name  [n]ame: string
             patient's name in DICOM PN syntax

      +pi  --patient-id  [i]d: string
             patient identifier

      +pb  --patient-birthdate  [d]ate: string (YYYYMMDD)
             patient's birth date

      +ps  --patient-sex  [s]ex: string (M, F or O)
             patient's sex

    study and series:

      +sg  --generate
             generate new study and series UIDs (default)

      +st  --study-from  [f]ilename: string
             read patient/study data from DICOM file

      +se  --series-from  [f]ilename: string
             read patient/study/series data from DICOM file

    instance number:

      +i1  --instance-one
             use instance number 1 (default, not with +se)

      +ii  --instance-inc
             increment instance number (only with +se)

      +is  --instance-set [i]nstance number: integer
             use instance number i

    burned-in annotation:

      +an  --annotation-yes
             document contains patient identifying data (default)

      -an  --annotation-no
             document does not contain patient identifying data

    enhanced general equipment:

      +mn  --manufacturer  [n]ame: string
             manufacturer's name

      +mm  --manufacturer-model  [n]ame: string
             manufacturer's model name

      +ds  --device-serial  [n]umber: string
             device serial number

      +sv  --software-versions  [v]ersions: string
             software versions

    3d model measurement units:

      +mu  --measurement-units  [CSD] [CV] [CM]: string
             measurement units with coding scheme designator CSD,
             code value CV and code meaning CM (default: UCUM, um, um)

## processing options

    other processing options:

      -k   --key  [k]ey: gggg,eeee="str", path or dictionary name="str"
             add further attribute

## output options

    output file format:

      +F   --write-file
             write file format (default)

      -F   --write-dataset
             write data set without file meta information

    group length encoding:

      +g=  --group-length-recalc
             recalculate group lengths if present (default)

      +g   --group-length-create
             always write with group length elements

      -g   --group-length-remove
             always write without group length elements

    length encoding in sequences and items:

      +e   --length-explicit
             write with explicit lengths (default)

      -e   --length-undefined
             write with undefined lengths

    data set trailing padding (not with --write-dataset):

      -p   --padding-off
             no padding (implicit if --write-dataset)

      +p   --padding-create  [f]ile-pad [i]tem-pad: integer
             align file on multiple of f bytes
             and items on multiple of i bytes

# NOTES

## Attribute Sources

The application may be fed with some additional input for filling mandatory (and optional) attributes in the new DICOM file like patient, study and series information:

- The --key option can be used to add further attributes to the DICOM output file.
- It is also possible to specify sequences, items and nested attributes using the --key option. In these cases, a special "path" notation has to be used. Details on this path notation can be found in the documentation of dcmodify.
- The --key option can be present more than once.
- The value part (after the '=') may be absent causing the attribute to be set with zero length.
- Please be advised that the --key option is applied at the very end, just before saving the DICOM file, so there is no value checking whatsoever.

# 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 --verbose also informational messages like processing details are reported. Option --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 --log-level. In --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 --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 <etcdir>/logger.cfg.

# 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. @command.txt). 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 <datadir>/dumppat.txt).

# EXIT CODES

The stl2dcm utility uses the following exit codes when terminating. This enables the user to check for the reason why the application terminated.

## general

    EXITCODE_NO_ERROR                 0
    EXITCODE_COMMANDLINE_SYNTAX_ERROR 1
    EXITCODE_MEMORY_EXHAUSTED         4

## input file errors

    EXITCODE_CANNOT_READ_INPUT_FILE   20
    EXITCODE_NO_INPUT_FILES           21
    EXITCODE_INVALID_INPUT_FILE       22

## output file errors

    EXITCODE_CANNOT_WRITE_OUTPUT_FILE 40

# ENVIRONMENT

The stl2dcm utility will attempt to load DICOM data dictionaries specified in the DCMDICTPATH environment variable. By default, i.e. if the DCMDICTPATH environment variable is not set, the file <datadir>/dicom.dic will be loaded unless the dictionary is built into the application (default for Windows).

The default behavior should be preferred and the DCMDICTPATH environment variable only used when alternative data dictionaries are required. The DCMDICTPATH environment variable has the same format as the Unix shell 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 DCMDICTPATH environment variable. It is an error if no data dictionary can be loaded.

# COPYRIGHT

Copyright (C) 2018-2024 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.

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