Celestia Forums

There is a wxLua package but in the end, I believe python would offer more capability and a wider variety of useful utility packages. Interesting, so it is possible to do gui layout with just python or Lua. Python is probably a hard sell at this point considering how Lua is integrated with Celestia...

Glad to see discussion about future upgrades and in particular going to hopefully, one UI. I agree that much work is wasted maintaining all the UI front ends. Wish I had more time to spend working with you guys, every now and then I poke in to see what's going on, but I couldn't resist putting in my...

And to add to the mix STK uses .a for the attitude file extension--may even be able to use the STK format too.

Different types of data files require different formats. I think it's best that the filetypes be self-documenting. I like the .rot extension, since either quaternion or euler angles are both just rotations. However, as Selden mentions, it's best for the file to be self documenting, i.e. you know wh...

IMHO, the background in this graphic on the right side is way too washed out.

What also may be cool is use the negative of this splash background: http://www.shatters.net/~t00fri/images/F_splash.png ...and then fade the right portion (which already is faded) into a real cool looking view from Celestia with constellations and orbits being rendered--maybe something around Satur...

Also, if you run into any obstacles in your project, please post them here. Actually there is one thing I'm trying to do but thus far I'm stumped. What I would like to do is be able to render multiple Celestia views within different panes on the wxGlcanvas. Right now in Celestia we can split views ...

Scott, There's no label created yet for 1.5.0; we'll create one when version 1.5.0 is complete. Do you just want the latest source? CVS will sync with the top of the tree by default. --Chris Ahhh, that's easy enough. Yes I want the latest, you sure piled a bunch of goodies in this one Chris. I espe...

I'd like to check out the latest build but could only find 1_4_1 on the sourceforge CVS.

I've seen some windows specific CVS installers but nothing pointing me to 1_5_0, but that doesn't help me on Linux.

TIA for any help.

Scott

I've been tinkering around with wxPython and have found it pretty easy to implement new GUI features for Celestia. At my job we use alot of python and recently started moving towards wxPython for our GUI's, so I was looking for some kind of training project. Here's a screenshot of a very simple demo...

FWIW, the FC5 Extras package is going to be based on Celestia from CVS plus this little patch: http://cvs.fedora.redhat.com/viewcvs/rpms/celestia/devel/celestia-1.4.0-compile.patch?root=extras&view=markup It compiles anyway. Now I have to do some testing... ^^ That works for me! :) How nice to ...

I am positive the Orientation option in the ssc format has one negative rotation. Take any model and throw a positive 90 deg rotation about each of the axes (one at a time)--no matter what you do the resulting frame will not be right handed. Chris, Could you shed any light on why this occurs? Also,...

Has anyone looked at OpenSceneGraph? I've seen some 3D lunar videos and using elevation data along with image data really looked fantastic. I'd look at importing an digital elevation model (DEM) or newer format--perhaps from ISIS. Using a package that readily imports existing planetary data can be a...

A few pics of Celestia using the new orientation features. http://home.houston.rr.com/mazdarx7/shuttleAndTank2_ld.png http://home.houston.rr.com/mazdarx7/shuttleAndTank3_ld.png http://home.houston.rr.com/mazdarx7/shuttleAndTank5_ld.png p.s. Don't ask me for the tank model--no promises, but I'm in th...

Yes that would be a useful feature--I had the same thoughts!

STK has an almost identical 2D graphical display. I bet it would not be too hard to implement.

Scott

Could the jittering be caused by floating point precision issues? For state vectors around the Earth, I don't think that will be a problem. I'm pretty sure I'm using doubles all the way through the calculations. As for velocity, I think it should definitely be an optional part of trajectory files--...

Thanks for the update . . . I'm very interested in supporting this file format (or something close to it) in Celestia. I'd had the idea of using a second file for orientation rather than including it with the trajectory, but either approach could work. Why is it necessary to include the velocity? F...

What I'd like to do is implement something akin to SampledOrbits for orientation. RocketMan@JSC has implemented rvq files that contain a sequence of orientations in addition to as positions. What may be more useful is to store the axes of rotation at different point in time instead of actual orient...

Just thought I would bring you guys up to date on the shuttle/external tank separation visualization task. Remember I took tec's baseline code and pulled in the necessary changes to add orientation. I made several changes, the most notable being the reference frame. Apparently tec's frame is rotatin...

I've got it working on Fedora Core 3 and Red Hat Enterprise Linux 3.?. I've only built 1.4.1 with the GTK+ front end, not sure about the KDE version. If the code is good (which Celestia is), it should just about work on any of them. The biggest question is what level of video driver support is avail...