SFINX software tree - Image - bitmaps
X bitmaps (.xbm) are simple, easy to create image.
Limitations: monochrome only.
XBM images are used as icons under
X.
XBM images are also often used on the Wold Wide Web,
since originally, only GIF and X bitmaps were supported.
XBM images can easily be included into C programs.
XBM image manipulation
The X window system comes with a utility bitmap
which can be used to edit XBM files.
Creating XBM images
XBM files can be created with the bitmap program.
They can be converted to a (ascii) text file using bmtoa
and
back using atobm
. The ascii representation has -
for empty bits and # for filled bits.
Conversion from some other image formats is possible, using
xv or the ImageMagic tools.
Converting to other image types
Converting XBMs to other image formats can be done by xv
or the ImageMagic tools.
Printing XBM images
The latest version of xv can do it directly. Otherwise,
first convert to PostScript and then print the PostScript
file.
David.Jansen@strw.leidenuniv.nl
Last modified: Fri Dec 1 14:07:08 MET 1995