Celestia Forums

For those who have interest in 'Coordinate systems' and 'Frames' in Celestia, I developped a celx script on that subject to complement the documentation on that subject on my site at:

>> http://ralph.buisson.9online.fr/celesti ... nteractifs
This script in Lua celx is in 'English style' , and especialy its introduction is written in english (I hope so... )
Its name is explore_coord.celx

>> http://ralph.buisson.9online.fr
'This updated site is still in French... sorry for you guys...

With all those tools, I found the 'SYNCHRONOUS' mode or 'planetographic' frame quite AWQWARD regarding the choice of its XYZ axes orientation:
1- I dont find it a Direct-3D orientation
2- I dont find it consistent with the Greenwich meridien origine either.
This point of view is explained on the site on page: rectangulaires_sph?riques' under ATTENTION (*2) and (*3)
>> http://ralph.buisson.9online.fr/recta_s ... tm#figures
The orientation of this frame is shown and explained on page
>> http://ralph.buisson.9online.fr/synchro.htm

I would like someone(s) to look at it precisely, and to tell me if you agree or desagree ?!!

Anyway please be free to use and test this script (and your own comprehension of these frames...) and to report any error found in this script!...as well as on any page of this site...
Celestia coordinates systems dont seem so easy to win over...
Jpierre

Rjp buisson wrote:I would like someone(s) to look at it precisely, and to tell me if you agree or desagree ?!!

Hello Jpierre,

I am very sorry to see that none of the developers or other people who know about Celestia's coordinate systems have taken the time to review your pages and comment on them.

I know one of the developers speaks French, but maybe he doesn't know much about the coordinate systems?

It's just sad.

Jeau Pierre,
En Fran?ais entre nous.
J'ai t?l?charg? et lanc? ton programme sur .celx sur les coordonn?es et je l'ai ?norm?ment , ?norm?mentappr?ci?. Je n'ai pas encore lu tes Pb ci-dessus!!!. Je ne suis pas astronome ni informaticien professionnel, toutefois j'en sais peut ?tre assez pour t'aider.
Peut ?tre, Christophe le lyonnais, beaucoup plus conp?tent que moi en info peut t'aider.
Je vois cel? durant le weekend.
Salut
MB

MB wrote:J'ai t?l?charg? et lanc? ton programme sur .celx sur les coordonn?es et je l'ai ?norm?ment , ?norm?ment appr?ci?.

Merci MB de ton retour tr?s encourageant...j'attends donc.

Don wrote:I am very sorry to see that none of the developers or other people...

Thanks Don for you compassion..

Yes I'll have to wait a bit more... But Time IS in the true evaluation of everything...

JPierre