A command line utility to convert .xfig files to the OpenOffice Draw format.
GEOS (Geometry Engine - Open Source) is a C++ port of the
Java Topology Suite (JTS). As such, it aims to contain the complete
functionality of JTS in C++. This includes all the OpenGIS "Simple
Features for SQL" spatial predicate functions and spatial operators,
as well as specific JTS topology functions such as IsValid().
The Founts is a demo/program, which was inspired by Eric's Cascade.
Apvlv is a PDF/DJVU Viewer and its behaviour is like Vim's.
giflib is a library for reading and writing gif images.
It is API and ABI compatible with libungif which was in wide use
while the LZW compression algorithm was patented
gifsicle is a powerful command-line program for manipulating GIF image
files. Extensive options let you control what exactly it does.
GIMP plug-in particularly well-suited for the needs of photographers
seeking to correct perspective, but flexible enough to be used by
all those wishing to add perspective to an otherwise flat scene.
The plugin can be found under "Filters > Distorts > EZ Perspective"
This plug-in makes a out of focus with luminosity and depth, like a
sight or lenses. It can be used with depth map, depth fakes and
shining effect. Also it works as a simple and applicable blur.
[ edited excerpt from www site ]
GIMP plugin that creates a white (or black) border around an image
that merges in with the image so that on a larger white (or black)
background, the image appears to have a ragged border.
This is similar to the GIMP's Fuzzy Border, but it adapts its
jaggedness to the image. (Also unlike Fuzzy Border, it is deterministic,
it does not depend on random number seeds.)
The plugin can be found under "Filters > theilr > jagged Border"
GMT is a collection of public-domain Unix tools that allows you to
manipulate x,y and x,y,z data sets (filtering, trend fitting,
gridding, projecting, etc.) and produce PostScript illustrations
ranging from simple x-y plots, via contour maps, to artificially
illuminated surfaces and 3-d perspective views in black/white or
24bit color. Linear, log10, and power scaling is supported in
addition to 25 common map projections. The processing and display
routines within GMT are completely general and will handle any (x,y)
or (x,y,z) data as input.
This port installs only the GMT manpages, there is a tutorial and
documentation in .ps, .pdf and .html format on the ftp site, too.
In case you look for data to plot, there is topological data at
ftp://topex.ucsd.edu/pub/global_topo_2min/topo_8.2.img
(140MB, covers nearly the whole earth)