Celestia Forums

Frames/Orientation/Coordinates Explorer: FOC_explorer.celx This script allows full user experimentation from within Celestia of the different frames, coordinates and orientation available. It is a complement to the now finished :D documentation on that subject available on the site :http://ralph.bui...

Frames/Orientation/Coordinates Explorer: FOC_explorer.celx This script allows full user experimentation from within Celestia of the different frames, coordinates and orientation available. It is a complement to the now finished :D documentation on that subject available on the site :http://ralph.bui...

Frames/Orientation/Coordinates Explorer: FOC_explorer.celx This script allows full user experimentation from within Celestia of the different frames, coordinates and orientation available. It is a complement to the now finished :D documentation on that subject available on the site :http://ralph.bui...

Now that you ask: what operations on quaternions are useful and should be available in CELX? Thanks Harry I am glad to have now a link to the source code of Celestia,which I didn't have ... Mentionned operators seem to be coherent with the algebra structure of Quaternions. As you already know, Quat...

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. 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 ...

I am now trying to understand rotations/quaternions manipulation in lua-celx. Concerning the document: Celx Objects and Methods (for Celestia version 1.3.2) (file version 1.5 -- April 26, 2004) availaible on Don site, I have a few questions: 1- is there a observer:getoriention() or observer:getrotat...

I am now trying to understand rotations/quaternions manipulation in lua-celx. Concerning the document: Celx Objects and Methods (for Celestia version 1.3.2) (file version 1.5 -- April 26, 2004) availaible on Don site, I have a few questions: 1- is there a observer:getoriention() or observer:getrotat...

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/celestia.htm#Scripts%20interactifs This script in Lua celx is in 'English style' ...

For those who have interest in 'Coordinate systems' and 'Frames' in Celestia, I developped my first celx script on that subject to complement the documentation on that subject on my site at: >> http://ralph.buisson.9online.fr/celestia.htm#Scripts%20interactifs This script in Lua celx is in 'English ...

Until script drawing routines are available, you might consider creating appropriate 3D model files that display lines and points in Celestia. If you're primarily interested in objects in the solar system, you could define the models as Nebulas in DSC files. They can be turned on and off by enablin...

Thanks Harry for your prompt and precise answer concerning rotations: 1-You gave me some hints starting USING rotations with celx. Good! but 2- A rotation-object is internally a Quaternion, which is one possibility to mathematically describe a rotation in 3 dimensions I don't know yet WHAT is a (the...

I'm trying to fully understand positioning and viewing methods in Celx. (for myself AND to publish an available documentation to everyone...) Could you confirm or correct my present (mis)understanding: 1-Methods related to positioning of observer: Two kinds of positions (but belonging the same class...

I would appreciate basic drawing methods in Celx programming; Are they already implemented in Lua and available in Celx? to begin with: 1-sort of markPoint(position,style,layer) which permit to mark any 'point' in space as we already do with celestia objects 2-sort of drawLine(from,to,style,layer) w...

Hi Harry
Hello Don
Thanks a lot for your prompt answers.
You do make a great job watching and answering our mail..
Clear skyes to you.
JPierre

In Lua-Celx programming:

Is a 'position' object the same class as a 'vector' ???
Do the same methods apply to both of them?
If not, WHAT is exactly a Position object?
Thanks

I am quite new to Celestia +Lua programming but I know Object language programming. I first need lot of testing on methods availables in Celx Is there a default method available offering a sort of 'asString' functionality: I mean a method returning a string containing the values of the members of an...

Is it only in french? Only, do you meam a deutch version too? just joking! Yes there will be a english translation of thoses pages: 1-when I am quite assured of the exactitude (?) of what I wrote! I am actualy waiting for any return from the developper team of Celestia, or from any user who can con...

Hello Don, Glad to meet you: my first insight in this quest was your own pages on the subjet !... so I thanks you too! so I was wondering if there will be an English version of your web pages in the future? . Yes there will be a translation of thoses pages: 1-when I am quite assured of the exactitud...

Hello everybody For those who aren't quite sure of 1- what the 'follow' , 'chase' , 'lock' and 'synchro' modes are really doing 2- what 'moving one's camera' really means in Celestia 3- what 'moving' oneself in Celestia'space really means... for those who intend 4- to write 'scripts' to plan trips a...

Hello everybody For those who aren't quite sure of 1- what the 'follow' , 'chase' , 'lock' and 'synchro' modes are really doing 2- what 'moving one's camera' really means in Celestia 3- what 'moving' oneself in Celestia'space really means... for those who intend 4- to write 'scripts' to plan trips a...