Reorienting the Milky Way addon

[DOJOMO]

Hello,

I am enjoying Abrahsons wonderful addon and have been creating my own textures using Fridger's mask method. Positioning is difficult, at this stage I've only been able to adjust things by shifting the image in PS Elements. Slow and laborious!
I want to use the method built into Celestia but I can't get the command line to work. I followed the command described in Selden's Notes. I assume that I am making a mistake.

This is what I entered:-
"C:\Program Files (x86)\Celestia\celestia.exe" --verbose > align.log

I get an error message:-
Invalid command line option '>'

BTW the Full Screen command line works:-
"C:\Program Files (x86)\Celestia\celestia.exe" --fullscreen

What am I doing wrong - any thoughts would be most welcome.
Thanks.

[abramson]

Abramson. Abramson.

Dojomo, are you running this command in Celestia's folder? It just works in my system, also W7 64. The operator > is a standard redirection, it works in any system, windows, linux, mac, anything. Open a command window in Celestia's folder and run: celestia --verbose > align.log

Guillermo

[t00fri]

This is what I entered:-
"C:\Program Files (x86)\Celestia\celestia.exe" --verbose > align.log

For example, in Linux, the --verbose option doesn't exist.

By using celestia --help

one finds that only these options are known under Linux:

Code: Select all

Options:
  --conf <file>             Use alternate configuration file
  --dir <directory>         Use alternate installation directory
  --extrasdir <directory>   Use as additional "extras" directory
  --fullscreen              Start fullscreen
  -s, --nosplash            Disable splash screen


Fridger

[t00fri]

Hello,

I am enjoying Abrahsons wonderful addon and have been creating my own textures using Fridger's mask method. Positioning is difficult, at this stage I've only been able to adjust things by shifting the image in PS Elements. Slow and laborious!

DOJOMO,

the problem is rather that a proper positioning by globally shifting & rotating the add-on image is impossible. This means that the ESO people must have used a different/incompatible projection | coordintate frame | coordinate range, mainly affecting the vertical axis.

Last weekend I have written an email to Stéphane Guisard, the head optical engineer for the ESO galaxy project, asking him for a download permission of their maximal image size of 24k (!) as well as for precise info about projections and coordinates used. Once I know this, I can easily reproject the image to what is needed in Celestia, using ISIS3 software.

Unfortunately, Stéphane G. has not replied yet....

Fridger

[abramson]

Dojomo,

By the way, i think that the verbose option is not necessary. You can just run celestia > align.log, enter edit mode with @, reorient and save with !.

G

[t00fri]

Dojomo,

By the way, i think that the verbose option is not necessary. You can just run celestia > align.log, enter edit mode with @, reorient and save with !.

G

That's actually what I did, too. Works without problems.

Fridger

[DOJOMO]

Hello to both Fridger and Guillermo,
Many thanks for the v. quick responses.
I understand Fridgers point regarding the unknown projection of the MW texture and the impossible task aligning it. I was simply trying to get some practice with the method, should a texture, that works with Celestia and is able to be displayed accurately, become avaiable.

Unfortunately, I still can't get the Align.log to generate in Celestia. I've tried every combination of the command form. As before --fullscreen works but all else I try generates an error

I have used both the Command Prompt and also the Properties window method by R clicking the desktop shortcut icon.

But very much appreciated,

[selden]

David,

Where did you get the copy of Celestia that you're using?
Did you build it yourself? If so, how did you do it?

I just now updated to Celestia r5178 and rebuilt it using VS 2008 Express. It recognizes the options with no problems. See the attached screengrab, which shows Celestia having just started and with just a few lines written to the log file.


p.s. I just now verified that it works with Celestia v1.6.1, too.

[DOJOMO]

Hi Seleden,
Many thanks for your reply. I do find it quite a problem to use my computer as my eyesight is a bit dodgy, in fact I'm registerred blind but have some residual sight. I would love to build my own version of Celestia but I do get so many things wrong that it would be a bit of a nightmare. I do use Abramson's exe to get the latest versions. A great boon.

I have just now discovered what the problem is, I think, it is my stupidity! The command prompt in Windows permits long folder names including spaces but NOT file names My Celestia folder has several Celestia exe files which I differentiate with descriptive names that have spaces. I run Celestia as a simple short cut on the desktop and only install it properly when I want to ensure that all is up to date.

Many thanks,

[selden]

David,

I'm glad you found the problem. Spaces often cause issues. Sometimes things will work if you include quotes around a name which contains spaces. Another option is to use an underscore (_) or a minus sign (-) instead of a space.

[DOJOMO]

Hello Selden,
Many thanks for the advice, much appreciated.
David