[lcd4linux @ 2001-03-02 18:06:18 by reinelt]

README for PNG added

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@96 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

1 files changed, 47 insertions, 0 deletions

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+#
+# $Id: README.Png,v 1.1 2001/03/02 18:06:18 reinelt Exp $
+#
+
+This is the README file for the Png display driver for lcd4linux.
+
+Preliminarys: libgd, libpng, libz
+Optional: perl, apache
+
+The driver creates the output file specified with the -o switch. The
+parameter is used as a format string for sprintf(), if you specify '%d'
+in the output file, files with a sequence number will be created.
+
+The output file is first created with a '.tmp' extension, this temporary
+file will be written and closed, and finally (atomically) renamed. This way
+you can be shure that you will always get a complete file, but its contents
+changes every 'tick' milliseconds. 
+
+Configuration:
+
+The driver needs/supports the following entries in lcd4linux.conf:
+
+Display: must be "Png"
+size: [columns]x[rows], e.g. "20x4"
+font: [xrex]x[yres], at the moment only "5x8" and "6x8" supported.
+pixel: [pixelsize]+[pixelgap], e.g. "5+1"
+gap: [row gap]x[column gap], e.g. "3x3"
+border: border width
+foreground: color of an active LCD Pixel, must be #rrggbb
+halfground: color of an inactive LCD Pixel, must be #rrggbb
+background: backlight color, must be #rrggbb
+
+For details please look into README.Raster.
+
+To display this png file continuosly in a web page, follow these instructions:
+Copy the sample png.html to an appropriate place under your htdocs.
+Copy the sample nph-png perl script into your cgi-bin directory, and adjust
+png.html to contain this directory.
+Adjust nph-png to contain the path/filename of the outputfile (s -o above).
+Start lcd4linux -o path/filename.png.
+If you are on a slow connection to your webserver you might also adjust the
+$DELAY in nph-png or in lcd4linux.conf.
+
+Note: depending on your webervers configuration, you must rename nph-png to
+   nph-png.pl or npg-png.cgi.
+
+Have fun.