View Full Version : Help !!!

2003-Nov-27, 01:44 AM
I have a web page My Webpage (http://members.tripod.com/zephyr46/postmoderncogmap/id3.html) :)

I have a favorite site My favorite Webpage (http://www.solstation.com/map27ly.htm)
It (Solstation.com) is happy to share it's Java Code (http://www.solstation.com/ug/ug.htm) and even provides instruction. B)

But all i get when I insert the javacode is a grey screen :(

I have uploaded the ch.jar file to my site btu it dosn't work :(

Please help me !!! this has been going on for three years now and I am going insane :blink:

2003-Nov-29, 12:15 AM
Do you know if it works for other people who have downloaded it? Maybe there's a problem with the code...

2003-Dec-05, 01:42 AM
Thanks Dippyhippy

No, I haven't seen any examples outside of solstation, as they explain the original code was damaged by a Virus (http://solstation.com/ug/ug.htm).

But there is still the compilied code.


2003-Dec-05, 02:15 AM
Are there any class (.cls) files associated?
Your page seems to work fine for me... Most of the java apps (that weren't straight code) I've used had 2 sets of required files jar and class. I doubt you'd have missed it but it's what I needed... Try publishing your app in a new folder on your desktop, adding files until it works on your machine, then upload the whole folder to your site directing the links whatever.com/that folder name/that page\link. Tripod's pretty good about supporting whatever you toss at them...
use a page with only "open html" / " close html" as your base code. That is <html> </html> type that in a text document, go to the file tree (either explore, right click on start button... or through "my computer"/C:/ect...) change the extension from .txt to .html, say yes when the popup says this may kill you your family and your computer... then paste in your code and put .cls and.jar files in same folder. If it doesn&#39;t work then the codes prolly bad...
One other issue may be proprietary key links to I.E. the .cls file. Look at the code on the site (right click/view source) you get your apps from for a line that references that url (like "Flash" images do. Try pasting that line into your code... Then make sure they give you permission to do that... :huh:

2003-Dec-05, 06:24 AM
Thanks Eggplant :)

You May have noticed I got it up an runnig with the help of my freind Alex.
The Chveiw.jar file needed a directory of its own. We copied the stars off the webpage (http://solstation.com/47ly-ns.htm). I have to check with Ben and Jo if they mind. I think I should make it clearer that the work is not my own?
thanks for the suggestions :D

2003-Dec-05, 07:15 PM
and it appears I was incorrect about the same folder issue... ;) Though it is a good test avenue for some things..

2003-Dec-05, 09:08 PM
Yo folks,
I&#39;m Jo, the programmer guy from solstation.com. The chview client application (ChView16) is freely distributable. The source code got erased by a virus and there are no updates or bugfixes to it. There is a Java version of it in progress.
The Chview applet is also freely distributable. And I do have the source code for that. You need to know how applets work.
Commonly the code for an applet is kept in a Java ARchive file with a .jar extension. The problem you are having with your applet is that you aren&#39;t telling it correctly where that file is. Here is what you have (abbreviated):

<APPLET id=ChViewer archive=classes/chview.jar code=chview.ChViewer>

You are telling it the archive is in the classes subdirectory of the current directory and is called chview.jar. But you have no file on your website coresponding to that&#33;

To fix this you need to copy the file to your website, and fix the archive link to point to it. Or, I think you should be able to refer to the jar file on the solstation site by changing the line to


Give it a go and let me know if it works. If it doesn&#39;t write up what happens here and e-mail me a link. We might as well discuss this publically so everyone can learn something from it&#33;



2003-Dec-07, 11:18 PM
Thanks Jo &#33;
My freind Alex, who can crawl slowly through HTML and enjoy it, created a directory called &#39;classes&#39; and it worked. Thankyou thankyou thankyou :)

I encourage anyone into mapping stars get into this. I would love to map a cluster on chveiwer, my next 5 year project. :)

2003-Dec-09, 01:25 AM
My next five year + project

I am attepting to contact different groups and individuals to set up a virtual universe online. Any advice and suggestions welcome :unsure:
here is the outline:

This is a great demonstration of the end product, hopefully, it will be a little more interactive :)

Molecular Expressions (http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/index.html)

The ESA has some great applets for the solar system including probes and background stars,
ESA Orbit Diagrams (http://orbits.esa.int/orbits/science/app/solar.htm)

The &#39;simple applet&#39; here shows the possibilities of Java,
3d Starmaps (http://www.nada.kth.se/~asa/Starmaps/)

J-track, the earths satelites,
J-Track (http://www.nada.kth.se/~asa/Starmaps/)

Solstation.com, excellent site with great resources
Solstation (http://www.solstation.com/index.html)

Milky Way Panorama, a great back drop,
Virtual Panarama (http://canopus.physik.uni-potsdam.de/~axm/mwpan_vr.html)

(I would love to see similar panoramas for the rest of the EM spectrum)

And finally the inspiration for this project
Atlas of the Universe (http://www.anzwers.org/free/universe/index.html)

Again, any thoughts, suggestions and support greatly appreciated.

2003-Dec-09, 04:18 AM
WOW zephy, I wish I had enough time on my hands to look at ALL of those... ;)
OK so I have DSL and I&#39;ve viewed all those pages and I still say wow... :P
Nice list&#33;

2003-Dec-10, 01:12 AM

Thanks Eggplant Man &#33;

Do you get the picture of where I am heading with all them ?

There is a small side project that goes along with the big one :unsure:

The Minor Planets Institute (http://cfa-www.harvard.edu/iau/lists/InnerPlot.html) has these wonderful plots of all the asteroids in the solar system;

hohmanntransfer.com (http://www.hohmanntransfer.com/cat/an1.htm) has links to orbit description applets

I would like to link them :rolleyes:

There is one other site
Powers of Ten (http://www.powersof10.com/)

another great site, with much under utilised forums :(

Planetlab (http://www.planet-lab.org/php/top.php) might be a good place to host ?

I was reading a New Scientist magazine that was looking at the future of the internet. One of the possibilities was using HTML on probes, ie www.explorer.mars.com. Kind of throws a new light on the Interplanetary Internet (http://www.ipnsig.org/) group. Hmm might be an overlap with the &#39;Your running JPL (http://www.universetoday.com/forum/index.php?showtopic=583&st=0)&#39; thread ?

Again, any help, suggestions and indeed participation greatly appreciated :)

5 Feb Sun Systems Java article about relevence to science (http://java.sun.com/features/2000/02/java3d.html)