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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 4.iso
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fsn.README
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toolbox/bin/fsn
3D File System Navigator
fsn (pronounced fusion) is a file system navigator in cyberspace. It
lays out the directories in a hierarchy with each directory represented
by a pedestal. The height of the pedestal is proportional to the size
of the files in the directory. The directories are connected by wires,
on which it is possible to travel. On top of each directory are boxes
representing individual files. The height of the box represents the
size of the file, while the color represents the age.
Fsn is intended as an investigation in information landscape navigation.
Although the file system was chosen as a system to navigate through,
similar paradigms could be applied to other trees and graphs, such as
call graphs.
Keep in mind that fsn is a prototype and an experiment. It is neither a
full featured product nor a replacement for a filesystem manager such as
Workspace.
Fsn requires Z-buffering and RGB support. You must be running IRIX
release 4.0.1 or greater. It is recommended that you have at least
16MB of memory, especially on an Indigo, where Z buffering uses a lot
of memory. On the Indigo, using split screen mode requires even more
memory. On the Indigo, only the double buffered color map is used, so
the colors are not as pretty as on other machines.
To install fsn, su, and from this directory, run install/fsn.install.
Fsn should be invoked with a parameter specifying the top directory to
be looked at. This directory can be "/", in which case the whole file
system is scanned. Although the system works fine starting at "/",
startup time is somewhat longer, and movement can be chunky if you have
more than about 1500 directories. You may prefer to start at your home
directory. Even if you start at "/", you can still prune it to a small
size using the Prune function. After pruning you will need to restart
fsn to reclaim the memory.
When scanning a file system, fsn will not cross file system type
boundaries. For example, it will not cross into an NFS file system.
However, it will cross mount points of the same type of file system.
The first time fsn is run it will scan the whole file system. Be
patient, this can take a few minutes. After it has scanned the file
system it will save a database in your home directory so that subsequent
startups can be done in seconds rather than minutes. On subsequent runs
the database will be read, making fsn quickly available.
Using fsn is easy. The manual page goes into a lot of detail, but here
is a quick overview.
The left mouse can be used to select directories and files. Clicking on
a directory or file will select it and zoom in.
Double click with the left mouse will execute or view a file, and "Warp"
into a directory, where there is a different viewing paradigm.
The middle mouse can be used to navigate. While holding down the middle
button, move the mouse in the direction you want to go. The farther you
move the mouse from where you clicked, the faster you go. Shift-middle
mouse also moves you up and down while moving forward and backward.
The right mouse pops up the file menu, which can also be found on the
menu bar.
There is also an overview window (which can be hidden if you don't want
it). This window shows you all the directories, and where you are. You
can also use it to select (left mouse), or move (middle mouse).
You may also want to experiment with the landscapes. The landscapes
control the colors of sky and ground, and can be selected with the
-landscape option. Be aware that the landscapes that use Gouraud
shading will not look all that good on an Indigo.
Your comments are appreciated. Send any mail to joel@sgi.com.