Off-Line Internet
from CD-ROM or Harddisk
A Timesaver Proposal to CytometryNet Sites
G.Valet
1. File Download
- The Martinsried Cytorelay is set up in such a way that only
the file names are provided in the: href="" or: img src="" calling
statements of .htm files, i.e. the full URL (universal relocator) information
consisting of the computer address and the directory tree is appended
by the www-server software only at login from outside e.g.:
|a href="offint1.htm"> Off-Line Internet |/a>
is automatically reconstituted to:
|a href="http://www.biochem.mpg.de/valet/offint1.html"> Off-Line Internet |/a>.
The | characters are used to avoid interpretation of the above lines
as network browser commands. They are replaced by < characters in
real .htm files.
- This .htm file setup facilitates mirror site setup and simultaneous
Off/On-Line Internet operation because all files can be accessed on harddisk,
CD-ROM or On-Line network without modifications.
- Recent Netscape 3.x and Mosaic 2.x browser versions make a
distinction between .htm files for UNIX operating systems and
.htm files for PC's. The PC as well as the UNIX
compatible version of all Martinsried administered .htm text files
and .GIF image files can be downloaded in compressed form as:
MARTINS1.ZIP
and:
MARTINS2.ZIP
- Decompression of these files by the PC
PKUNZIP
program provides the files: MARTPC1.ZIP, MARTUNI1.ZIP and
MARTREAD.ME.
- Decompression of the MARTPC1.ZIP and MARTUNI1.ZIP files into
separate directories provides the PC and UNIX compatible
simultaneous Off/On-Line Internet versions of the Martinsried
files.
- To prepare other files for simultaneous Off/On-Line Internet use,
a DOS program
(
OFFINT1) cuts unwanted local URL and directory informations from
.htm or .GIF files. The program furthermore transforms local .html
file names into .htm file names for PC users (OFFINTPC.BAT).
2. Local File Setup
2.1 Single Node Download
- In the simplest case the: martins1.zip file is dowloaded by the
FTP function of the network browser into a preestablished directory
e.g.: C:\INTERNET
- Following unzipping with: PKUNZIP MARTINS1, a bookmark
in the appropriate network browser directory has to be generated by
the user. Its name is: OFF-LINE Cytorelay Martinsried and its calling
sequence: file:///c:/internet/cytorel.htm
- Adressing this bookmark with the network browser will produce
the correct image of the Cytorelay homepage. The off-line addressable
buttons will be:
- Analytical Cellular Pathology (ACP)
- European Society for Analytical Cellular Pathology (ESACP)
- European Working Group on Clinical Cell Analysis
- Deutsche Gesellschaft für Zytometry (DGZ)
- Purdue Mailbox Mirror
- MPI-Biochemie Martinsried
- Consensus/Ring Trials
- Transatlantic www-Mirror
- Internet Operation
All other active buttons are on-line addressed, provided
the network connection is active. Otherwise an error message will be
generated.
2.2 Multi-Node Download
- The download from multiple nodes into the above file directory
may cause improper file addressing due to identical files names from
different locations. One way to reduce this danger is to reserve
the first three file name characters as file origine e.g. MAR = Martinsried,
PUR = Purdue. In this case only five characters are left for file content
explanation which may be undesired.
- Alternatively the off-line files of each downloaded node can be localized
in a separate directory. A master homepage file is used to address
the different homepages. The Martinsried files would be placed
accordingly e.g. into the subdirectory: C:\INTERNET\MARTINS.
- The bookmark of the network browser would now
address the master homepage MASTER.htm file in the C:\INTERNET
directory as:
file:///c:/internet/master.htm
- The master homepage in turn adresses then e.g. the two homepages of
the Martinsried node as:
|a href="martins/cellbio.htm"> Cell Biochemistry, MPI-Biochemie, Martinsried
|a href="martins/cytorel.htm"> Cytorelay Martinsried |/a>
- No modifications are required for any of the downloaded .htm
files in the different subdirectories, provided that all off-line file
calls contain only the file name without any leading characters
like: / or: ./ or: http: in the: href=" or: src=" calling sequences.
This is important to avoid the generation of wrong directory
trees by the network browser leading to improper off-line file adressing.
3. Computer and Browser Setup
3.1 Off-Line Internet with On-Line Network
Off-line Internet files are best reached by installing bookmark calls
with the browser's bookmark option. Under these conditions off-line .htm and
image files on hard disk are off-line addressed while on-line localizations
continue to be on-line addressed
3.2 Off-Line Internet without Network Card
All network addresses in the .INI file of the network control program
have to be preset to: 0.0.0.0 (e.g. in Trumpet TRUMPWSK.INI).
The HomePage line in the browser's MOSAIC.INI or NETSCAPE.INI files
in the: \WINDOWS directory are set to the location of the off-line
MASTER.htm file location on the harddisk e.g:
HomePage=file:///c:/internet/master.htm
Upon calling, Mosaic and Netscape browsers immediately display the
off-line: MASTER.htm file. All accessible off-line files are callable
through the active buttons in the MASTER.htm file. On-line calls
generate an error message which is bypassed by a mouse click.
3.3 Off-Line Internet with an Off-Line Network Card
In case a network card without connection to the active network is present
in the computer , Mosaic browsers generate a bypassable
error message while the operating system gets stuck in our hands
with Netscape browsers due to a non bypassable error message.
3.4 Conclusion
Off-line Internet is best setup on either on-line network computers
or on off-line network computers without network card.
Off-line Internet, a timesaver !
Download
all Martinsried cytometry pages, check the concept,
follow the installation instructions (PC) and
display text and graphics from your harddisk without network delay
For problems or comments, please contact:
G.Valet E-mail:
valet@vms.biochem.mpg.de,
Max-Planck-Institut für Biochemie,
Am Klopferspitz 18a, D-82152 Martinsried, Germany,
Tel: +49/89/8578-2518, -2525, Fax: +49/89/8578-2563
INTERNET address: http://www.biochem.mpg.de/valet/cytorel.html
Last update: Oct.10, 1996
CD ROM Vol 2 was produced by staff at the Purdue University Cytometry Laboratories
and distributed free of charge as an educational service to the cytometry community.
If you have any comments please direct them to Dr. J. Paul Robinson, Professor & Director, PUCL,
Purdue University, West Lafayette, IN 47907. Phone:(317) 494-0757; FAX (317) 494-0517; Web http://www.cyto.purdue.edu
EMAIL robinson@flowcyt.cyto.purdue.edu