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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2023-08-07 00:43:10 +0000 |
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| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2023-08-07 00:43:10 +0000 |
| commit | 3195997e71a1ad9686da91a1d14cda2d81d3eb52 (patch) | |
| tree | 80b0bf66fc0011c0a79d0f097bdb2572846873ea | |
| parent | be53c19faa6b3cea13b923976af67b800078ee3a (diff) | |
| download | netpbm-mirror-3195997e71a1ad9686da91a1d14cda2d81d3eb52.tar.gz netpbm-mirror-3195997e71a1ad9686da91a1d14cda2d81d3eb52.tar.xz netpbm-mirror-3195997e71a1ad9686da91a1d14cda2d81d3eb52.zip | |
miscellaneous update
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@4580 9d0c8265-081b-0410-96cb-a4ca84ce46f8
| -rw-r--r-- | ppmtosixel.html | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/ppmtosixel.html b/ppmtosixel.html index 91716e70..3836cb85 100644 --- a/ppmtosixel.html +++ b/ppmtosixel.html @@ -2,7 +2,7 @@ <html><head><title>Ppmtosixel User Manual</title></head> <body> <h1>ppmtosixel</h1> -Updated: 26 April 1991 +Updated: 1 August 2023 <br> <a href="#index">Table Of Contents</a> @@ -18,6 +18,8 @@ ppmtosixel - convert a PPM image to DEC sixel format [<b>-margin</b>] +[<b>-7bit</b>] + [<i>ppmfile</i>] <h2 id="description">DESCRIPTION</h2> @@ -25,8 +27,9 @@ ppmtosixel - convert a PPM image to DEC sixel format <p>This program is part of <a href="index.html">Netpbm</a>. <p><b>ppmtosixel</b> reads a PPM image as input and produces sixel -commands (SIX) as output. The output is formatted for color printing, -e.g. for a DEC LJ250 color inkjet printer. +commands (SIX) as output. The output is formatted for color printing +(e.g. for a DEC LJ250 color inkjet printer) or for color display on +DEC VT terminals and terminal emulators (VT240 and beyond). <p>If RGB values from the PPM file do not have maxval=100, <b>ppmtosixel</b> rescales them to maxval 100. A printer control @@ -53,9 +56,22 @@ magnitude larger than a compressed file and prints much slower. <dt><b>-margin</b> <dd>If you don't specify <b>-margin</b>, the image will start at the -left margin (of the window, paper, or whatever). If you <em>do</em> +left margin (of the window, paper, or whatever). If you do specify <b>-margin</b>, a 1.5 inch left margin will offset the image. +<dt><b>-7bit</b> + +<dd>If you don't specify <b>-7bit</b>, each control code will be +expressed as a single, 8-bit "C1" character. If you do +specify <b>-7bit</b>, each control code will be expressed using two, +7-bit "C0" characters. +(See <a href="https://en.wikipedia.org/wiki/C0_and_C1_control_codes">C0 +and C1 control codes</a> for more information.) In other +words, <b>-7bit</b> produces more portable sixel files, and its +absence produces smaller sixel files. + +<p>This option was new in Netpbm 11.04 (September 2023). + </dl> <h2 id="printing">PRINTING</h2> |