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<html>
<head>
<title>
PBMLIB - Portable Bit Maps
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
PBMLIB <br> Portable Bit Maps
</h1>
<hr>
<p>
<b>PBMLIB</b>
is a FORTRAN90 library which
creates and reads Portable Bit Map files (PBM).
</p>
<p>
Both ASCII
PBMA and binary PBMB formats are supported. The library can also handle
the related Portable Gray Map (PGMA and PGMB) and Portable Pixel Map
(PPMA and PPMB) formats.
</p>
<p>
There are many graphics programs, such as XV and GIMP, that can
display images in these formats, or translate them to other formats
such as BMP, GIF, JPEG, MacPaint, X Window, and so on.
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>PBMLIB</b> is available in
<a href = "../../c_src/pbmlib/pbmlib.html">a C version</a> and
<a href = "../../f_src/pbmlib/pbmlib.html">a FORTRAN90 version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../data/pbma/pbma.html">
PBMA</a>,
a data directory which
contains examples and a description
of the ASCII Portable Bit Map graphics file format.
</p>
<p>
<a href = "../../f_src/pbma_io/pbma_io.html">
PBMA_IO</a>,
a FORTRAN90 library which
can read or write ASCII PBM (black/white) graphics files.
</p>
<p>
<a href = "../../data/pgma/pgma.html">
PGMA</a>,
a data directory which
contains examples and a description
of the ASCII Portable Grayscale Map graphics file format.
</p>
<p>
<a href = "../../f_src/pgma_io/pgma_io.html">
PGMA_IO</a>,
a FORTRAN90 library which
can read or write ASCII PGM (grayscale) graphics files.
</p>
<p>
<a href = "../../data/ppma/ppma.html">
PPMA</a>,
a data directory which
contains examples and a description
of the ASCII Portable Pixel Map graphics file format.
</p>
<p>
<a href = "../../f_src/ppma_io/ppma_io.html">
PPMA_IO</a>,
a FORTRAN90 library which
can read or write ASCII PPM (RGB color) graphics files.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
<a href = "http://netpbm.sourceforge.net/">the NETPBM homepage</a>.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "pbmlib.f90">pbmlib.f90</a>, the source code;
</li>
<li>
<a href = "pbmlib.sh">pbmlib.sh</a>,
commands to compile the source code;
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "pbmlib_prb.f90">pbmlib_prb.f90</a>, the calling program;
</li>
<li>
<a href = "pbmlib_prb.sh">pbmlib_prb.sh</a>,
commands to compile, link and run the calling program;
</li>
<li>
<a href = "pbmlib_prb_output.txt">pbmlib_prb_output.txt</a>,
the output file.
</li>
<li>
<a href = "alphabits.txt">alphabits.txt</a>, a simple font file
used by the calling program.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>BITCHR75</b> returns a 7 by 5 bit pattern for a given character.
</li>
<li>
<b>CH_CAP</b> capitalizes a single character.
</li>
<li>
<b>FONT_DATA</b> prints out a FORTRAN DATA version of a simple bit map font.
</li>
<li>
<b>FONT_PRINT</b> prints out a text version of a simple bit map font.
</li>
<li>
<b>FONT_READ</b> reads simple ASCII data defining a bit map font.
</li>
<li>
<b>GETINT</b> reads an integer from a file.
</li>
<li>
<b>GET_UNIT</b> returns a free FORTRAN unit number.
</li>
<li>
<b>HEXCOL</b> returns a color on the perimeter of the color hexagon.
</li>
<li>
<b>I4VEC_TO_S</b> converts an array of integers into a string.
</li>
<li>
<b>PBM_CHECK_DATA</b> checks bit data.
</li>
<li>
<b>PBM_EXAMPLE</b> sets up data for a PBM file.
</li>
<li>
<b>PBMA_READ</b> reads an ASCII portable bit map file.
</li>
<li>
<b>PBMA_READ_DATA</b> reads the data from an ASCII PBM file.
</li>
<li>
<b>PBMA_READ_HEADER</b> reads the header of an ASCII PBM file.
</li>
<li>
<b>PBMA_WRITE</b> writes an ASCII portable bit map file.
</li>
<li>
<b>PBMB_READ</b> reads a binary portable bit map file.
</li>
<li>
<b>PBMB_WRITE</b> writes a binary portable bit map file.
</li>
<li>
<b>PGM_CHECK_DATA</b> checks gray data.
</li>
<li>
<b>PGM_EXAMPLE</b> sets up sample PGM data.
</li>
<li>
<b>PGMA_READ</b> reads an ASCII portable gray map file.
</li>
<li>
<b>PGMA_READ_DATA</b> reads the data in an ASCII portable gray map file.
</li>
<li>
<b>PGMA_READ_HEADER</b> reads the header of an ASCII portable gray map file.
</li>
<li>
<b>PGMA_WRITE</b> writes an ASCII portable gray map file.
</li>
<li>
<b>PGMB_READ</b> reads a binary portable gray map file.
</li>
<li>
<b>PGMB_WRITE</b> writes a binary portable gray map file.
</li>
<li>
<b>PPM_CHECK_DATA</b> checks pixel data.
</li>
<li>
<b>PPM_EXAMPLE</b> sets up sample PPM data.
</li>
<li>
<b>PPMA_READ</b> reads an ASCII portable pixel map file.
</li>
<li>
<b>PPMA_WRITE</b> writes an ASCII portable pixel map file.
</li>
<li>
<b>PPMB_READ</b> reads a binary portable pixel map file.
</li>
<li>
<b>PPMB_WRITE</b> writes a binary portable pixel map file.
</li>
<li>
<b>RT_TO_XY</b> converts polar coordinates to XY coordinates.
</li>
<li>
<b>S_BLANKS_DELETE</b> replaces consecutive blanks by one blank.
</li>
<li>
<b>S_CHOP</b> "chops out" a portion of a string, and closes up the hole.
</li>
<li>
<b>S_EQI</b> is a case insensitive comparison of two strings for equality.
</li>
<li>
<b>S_TO_I4</b> reads an I4 from a string.
</li>
<li>
<b>S_TO_I4VEC</b> converts an string of characters into an I4VEC.
</li>
<li>
<b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
</li>
<li>
<b>WORD_NEXT_RD</b> "reads" words from a string, one at a time.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../f_src.html">
the FORTRAN90 source codes</a>.
</p>
<hr>
<i>
Last revised on 03 September 2005.
</i>
<!-- John Burkardt -->
</body>
</html>