The CgmImage Applet
This license ("License") contains rights and restrictions associated
with use of the accompanying software. Read the License carefully
before utilizing the software. By using the software you agree to be
bound by the terms and conditions of this license.
- Limited License Grant.
David Griffiths ("The author") grants to you ("Licensee") a nonexclusive, nontransferable,
worldwide, royalty-free license to use this The CgmImage Applet
software (the "Software"). Licensee agrees that it shall not use the
Software for computer operations of any critical nature.
- Source Code
Whilst the author may occasionally make source code available, it is NOT
in the public domain and the author retains full copyright over it.
UNDER NO CIRCUMSTANCES may software be sold containing code derived
from this source code without David Griffiths giving his explicit
The Software is copyrighted and title to all copies is retained by
the author. Licensee shall not make copies of Software, other than
a single copy of Software in machine-readable format for back-up or
archival purposes and, if applicable, Licensee may print one copy of
on-line documentation, in which event all proprietary rights notices
on Software and on-line documentation shall be reproduced and applied
to all copies. Unless enforcement of this provision is prohibited by
applicable law, Licensee shall not modify, decompile, disassemble,
decrypt, extract, or otherwise reverse engineer Software. Software
may not be transferred, leased, assigned, or sublicensed, in whole or
- Disclaimer of Warranty.
The Software is provided "AS IS," without a warranty of any kind.
ALL EXPRESS OR IMPLIED REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
IMPLIED WARRANTY OF MERCHANT-ABILITY, FITNESS FOR A PARTICULAR PURPOSE
OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED.
- Limitation of Liability.
IN NO EVENT WILL THE AUTHOR BE LIABLE FOR ANY LOST REVENUE,
PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
INCIDENTAL OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF THEORY
OF LIABILITY ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE,
EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Licensee may terminate this License at any time by destroying all
copies of Software including any documentation. This License will
terminate immediately without notice from David Griffiths if Licensee fails
to comply with any provision of this License. Upon termination,
Licensee must destroy all copies of Software.
If any of the above provisions are held to be in violation of applicable
law, void, or unenforceable in any jurisdiction, then such provisions
are herewith waived to the extent necessary for the License to be
otherwise enforceable in such jurisdiction, However, if in
the author's opinion deletion of any provisions of the License by
operation of this paragraph unreasonably compromises the rights or
liabilities of the author, David Griffiths reserves the
right to terminate the License and refund the fee paid by Licensee as
Licensee's sole and exclusive remedy.
This Agreement is the entire agreement between Licensee and David Griffiths
relating to Software and: (i) supersedes all prior or contemporaneous
oral or written communications, proposals and representations with
respect to its subject matter; and (ii) prevails over any conflicting
or additional terms of any quote, order, acknowledgment, or similar
communication between the parties during the term of this Agreement.
No modification to the Agreement will be binding, unless in writing
and signed by a duly authorized representative of each party.
...upon choosing this product. Not only will it improve your health,
and enhance your general spirituality, it will also clean the bath, cook
you breakfast, take care of the children, end armed conflict and
invigorate the look of your web page.
You should be careful to check that your unzipping program has named
the files correctly. Some DOS programs will name according to the old
8.3 format, rename .class files "*.cla".
The Gallery Example
NB: If you cannot see an applet above, then
you may need to extract more files from the .ZIP archive before reading
The code which produces the above is:
<applet code="CgmImage" width=300 height=217>
<param name=image value=cupid.cgm>
Paying for the Applet
There is NOTHING to pay. The applet is completely free. However, if you make a donation ($5 - $10?) to Ty Hafan, Children's Hospice of Wales, which is a charitable appeal formed to build, equip and run a Children's Hospice in
Wales to provide care for terminally ill children, you can consider your applet well-and-truly registered. Click here for details on how to make a donation. They now have an excellent new OnLine donation page. In just a few minutes you can change a few old, crinkly, dirty little bank notes into a nice warm glow...
Why won't the applet work off my hard disk?
Some web browsers have trouble opening applets straight from a hard disk.
I have noticed this happen with Internet Explorer 3 and Netscape 4. Once
you have loaded the class file and the web page onto your web site you
should find it works OK.
Why does my web page say "Class Format Error"?
Class files are binary files, just like image files are. Binary files
contain more information than text (also known as ASCII) files do. If
you transfer class files as if they were ASCII files then they will
lose this extra information and will become corrupted. How do you
transfer class files as binary files? You should transfer them in
the same way that you transfer image files.
Why does my web page say "Class Not Found"?
This is a very common problem. It may be because of one of the following:
- You have not put the class file onto the web site
- You are not calling the file with the correct name
(rename to use the same combination of upper- and
lower-case letters as your class file)
- Your transfer program has changed the name. This
does happen. Some programs will shorten the ".class"
extension to ".cla". Other will change the case of the
letters to either all uppercase or all lowercase. See
if you can change the options on the transfer program
to stop it doing this.
- You have include a "codebase=…" clause inside your
<applet…> code in your web page. "codebase=…" tells
the browser to look some place else for the class file.
- Some other reason I haven't thought of :-)
Examples from the Web
If you think you have come up with a particularly inventive way of using
this applet then please contact me so I
can think about including it as an example here.
Linking to my site
If you use this applet then it would be nice if you gave me a link
by copying the image:
(this is the file "dglogo.gif" in the .zip archive)
into the same directory as your web page and then pasting the following
into your page.
<a href="http://www.spigots.com/spigots.htm" target="_top">
width=88 height=31 border=0></a>
It will put a little button on your page that will link through to my Java Spigots
It is only a request: feel free to omit it.
Remember that if you are transferring the .class file to
another machine with FTP, you should set the 'binary' mode on. Failure
to do so will corrupt the file and give rise to a "Class Format" error.
If you still have trouble getting the applet to work and you have
tried all of the possible solutions listed above, then feel to
contact me, remembering to include:
|| A precise description of the problem (do you just
get a grey rectangle, or an error message etc. etc.)|
|| The URL of the page containing the applet (that's
the actual page - not just the front page on your site)|
These two pieces of information will make it a lot easier for me to
solve the problem. I cannot guarantee that I will be able to
respond to all messages (there's only so many hours in the day...) but
sending the URL of a page that doesn't work will greatly increase the
chances of getting an answer.
Remember to keep a look out at
my web site
for new applets.