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SVGX(1)				 User commands			       SVGX(1)

NAME
       svgx - extract gradients	from SVG files.

SYNOPSIS
       svgx [-a] [-b rgb] [-f rgb] [-g geometry] [-h] [-l] [-n rgb] [-o	file]
	    [-p] [-s name] [-t type] [-T rgb] [-v] [-V]	file

DESCRIPTION
       The svgx	program	extracts and converts gradients	in an SVG file.	Unlike
       most of the other file formats handled by the cptutils package, SVG
       files may contain multiple gradients, so	this program operates a	little
       differently to the other	programs in the	package.

       There are 4 modes of operation: The default is to extract the first
       gradient	found in the file, or one can specify -l to list the names of
       all gradients in	the file; -s to	extract	the gradient with the
       specified name or -a to extract all of the gradients.

       The output format is specified by the -t	option as listed below (in
       fact there are several aliases for each format: jgd for psp, ggr	for
       gimp, and so on). The svgcpt, svggimp, svggpt, svgcss3, svgpsp, svgpov,
       svgpng, svgqgs, svgsao, svgmap and svgsvg programs are wrappers around
       svgx which use the -t switch to specify output type.

       Atypically, the input SVG file is a mandatory argument. The program
       will write to stdout if the -o option is	not specified except when -a
       has been	specified: then	files will be produced (with names taken from
       those of	the gradients).

       Note that some of the SVG conversions require that the en_US.utf8
       locale be enabled. How this is done will	depend on your operating
       system. One would run

	   apt-get install locales
	   dpkg-reconfigure locales

       on Debian-based systems,	for example.

OPTIONS
       In the following, all rgb specifications	should be of the form
       red/green/blue where the	colour components are integers in the range 0
       to 255.

       -a, --all
	   Extract all gradients, which	will have filenames derived from the
	   gradient names. If this option is used then the argument of the -o
	   option will be interpreted as the output directory.

       -b, --background	rgb
	   Set the background colour of	cpt output.

	   Note	that this only modifies	the "background" field in the output
	   cpt file, it	does not affect	the transparency (see the -T option in
	   that	regard).

       --backtrace-file	path
	   Specify a file to which to write a formatted	backtrace. The file
	   will	only be	created	if there is a backtrace	created, typically
	   when	an error occurs.

       --backtrace-format format
	   Specify the format of the backtrace written to the files specified
	   by --backtrace-file,	one of plain, xml or json.

       -f, --foreground	rgb
	   Set the foreground colour of	cpt output.

       -g, --geometry widthxheight
	   Specify the size of the PNG image or	SVG preview in pixels.

       -h, --help
	   Brief help.

       -l, --list
	   List	the names of all gradients in the file.

       -n, --nan rgb
	   Set the NaN (no data) colour	of cpt output.

       -o, --output path
	   Write the output to path, rather than stdout.

	   If the -a option is specified then the path argument	must be	a
	   directory (which exists) and	the output files will be written into
	   this	directory.

       -p, --preview
	   Include a preview in	the SVG	output.	See also the --geometry
	   option.

       --strict
	   Do not create files which break limits of the format	specification.
	   In particular, do not create	POV-Ray	headers	with more than 255
	   stops, do not create	Tecplot	maps with more than 50 points.

       -s, --select name
	   Extract the gradient	with the specified name, see the -l output for
	   a list of possible values.

       -t, --type format
	   Set the output format, which	should be one of cpt, css3, ggr, gpt,
	   map,	psp, pov, png, qgs, sao	or svg.

       -T, --transparency rgb
	   When	converting to a	format which does not support transparency,
	   replace the transparency with the specified rgb colour.

       -v, --verbose
	   Verbose operation.

       -V, --version
	   Version information.

EXAMPLES
       Inspect an SVG file for gradients:

	   svgx	-v -l old.svg

       Extract the gradient "Sunny Road" from the same SVG file, converting
       the result to cpt: (note	that the gradient name needs to	be quoted)

	   svgx	-v -t cpt -s "Sunny Road" -o sunny_road.cpt old.svg

       Extract all of the svg gradients	from the file kittens.svg and give
       each of them a preview:

	   svgx	-v -t svg -a -p	kittens.svg

CAVEATS
       An ill-formed SVG gradient may be translated to rubbish while not
       reporting an error.

AUTHOR
       J. J. Green

SEE ALSO
       cptsvg(1), gimpsvg(1), pspsvg(1).

CPTUTILS		       9 September 2020			       SVGX(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | CAVEATS | AUTHOR | SEE ALSO

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