Celestia Forums

Posted: **05.05.2004, 08:14**

Hi,
I'm trying to get celstia to start me off on the surface of the suburb I live in, so I could check the local sky out, before I wizz off into the deep unknown.
I tried to get the script happening by going to the surface of the suburb I live in and then have it center on Rigel Kentaurus ( circumpolar over here).
The following script gets me to the surface but doesn't center on Rigel Kentaurus:

Code: Select all

{
   select { object "Sol/Earth" }
   synchronous {}
   goto { time 5 }
   gotolonglat { time 0 distance 1.0001 longitude 144.97 latitude -37.77 }
}
   cancel {}
   select { object "Rigel Kentaurus A" }
   center {}
}

While next one(dropped the '}' following gotolonglat line) centers on Rigel but I'm 204AU's away from Earth:

Code: Select all

{
   select { object "Sol/Earth" }
   synchronous {}
   goto { time 5 }
   gotolonglat { time 0 distance 1.0001 longitude 144.97 latitude -37.77 }
   cancel {}
   select { object "Rigel Kentaurus A" }
   center {}
}

Help me....I'm melting.

Also, while I'm here, I have created a 'SpaceExploration1957-1959.cel' as an excercise to learn about script writing. It works well, but it would enhance the script with Sputnik 2 and Vangaurd models. I haven't found them and would like to know for sure that they don't exist, before I give it a go myself....don't hold your breath...I'm only a novice concerning 3d programs.

Thanks for any help
Chris

Posted: **05.05.2004, 08:53**

Code: Select all

cancel{}

should be your problem. As soon as you do that you aren't stuck to an object anymore - so you won't stay on earth surface.

maxim

Posted: **05.05.2004, 09:10**

Hi Maxim
Yeah, I tried that...but, still the same. I was meant to take the 'cancel{}' out before posting this...sorry...it was an attempt to force the view towards Rigel...no luck, unfortunately.

Thanks anyway
Chris

Posted: **05.05.2004, 10:18**

You forgot to add the necessary wait-commands - maybe you want to read Don's Scripting Guide, I am sure it explains this:
http://www.donandcarla.com/Celestia/

This code should work:

Code: Select all

{
   select { object "Sol/Earth" }
   synchronous {}
   goto { time 5 }
   wait { duration 5 }
   gotolonglat { time 0.1 distance 1.0001 longitude 144.97 latitude -37.77 }
   wait { duration 0.1 }
   
   select { object "Rigel Kentaurus A" }
   center {}
}

The gotolonglat takes now 0.1s, to avoid any problems.

Harald

Posted: **05.05.2004, 10:57**

Hi Harald,
I have read Don's very helpful guide....and yeah, I forgot about the wait commands. But, alas, still no success. Your script has me facing towards an area near the star, Alnath, 205.69AU from Earth.
I'll re-read Don's guide...again

....I must be missing the essential info i'm looking for, everytime I go through it...like, not able to find my keys that are right in front of me.
Thanks
Chris

Posted: **05.05.2004, 13:15**

StarCrazy wrote:Hi Harald,
I have read Don's very helpful guide....and yeah, I forgot about the wait commands. But, alas, still no success. Your script has me facing towards an area near the star, Alnath, 205.69AU from Earth.
I'll re-read Don's guide...again ....I must be missing the essential info i'm looking for, everytime I go through it...like, not able to find my keys that are right in front of me.
Thanks
Chris

Hm, the code I posted works for me.

Though I don't think that this would cause your problem: What version of Celestia do you have? You may want to give the latest prerelease a try.

Harald

Posted: **05.05.2004, 15:39**

StarCrazy wrote:Your script has me facing towards an area near the star, Alnath, 205.69AU from Earth.

It does face Rigel Kentaurus, not near Alnath....don't know what happened there.

Harry wrote:Though I don't think that this would cause your problem: What version of Celestia do you have?

Ok...things are looking a little darker downunder. I'm using Celestia 1.3.1-1 OSX, the latest version for Mac. If it's working for you...I'm assuming you are using windows pre-release 1.3.2....then it's a strong possibilty that version 1.3.1 hasn't the ability to do this...

Thanks
Chris

Posted: **05.05.2004, 16:43**

Howdy StarCrazy,

Harald's version works okay for me (ver 1.3.1 final and 1.3.2 p7 on WinXP). Since Harald normally uses Linux, that leaves the OSX version as the culprit.

Maybe Hank or Bob know more about this?

Posted: **05.05.2004, 16:50**

StarCrazy wrote:It does face Rigel Kentaurus, not near Alnath....don't know what happened there.

For clarification: so the problem is that you are not near earth, but 205 AU away from it, correct?

Ok...things are looking a little darker downunder. I'm using Celestia 1.3.1-1 OSX, the latest version for Mac. If it's working for you...I'm assuming you are using windows pre-release 1.3.2....then it's a strong possibilty that version 1.3.1 hasn't the ability to do this...

Na, I am running Linux/current CVS

You could try inserting a wait-command as your first line - try experimenting with the duration, there could be a problem because Celestia is still busy with initialization while the script already runs.

Does this script work?

Code: Select all

{
   select { object "Sol/Earth" }
   synchronous {}
   gotolonglat { time 5 distance 1.0001 longitude 144.97 latitude -37.77 }
   wait { duration 5.1 }

   select { object "Rigel Kentaurus A" }
   track {}
}

Harald

Posted: **05.05.2004, 18:58**

Harry wrote:Does this script work?
Code: Select all
{ select { object "Sol/Earth" } synchronous {} gotolonglat { time 5 distance 1.0001 longitude 144.97 latitude -37.77 } wait { duration 5.1 } select { object "Rigel Kentaurus A" } track {} }

Harald

Harald....you're a legend, mate. 'Track' seems to be the only one that works on OSX. Still have to move my finger to press 't', to untrack it :roll:

Na...I'm not that bad. It's the safety mechanism of my ship....handbrakes :wink:

Thanks Harald for making me dance...I'm dancing right now...WooHoo...and everyone for their tune.

Much Appreciated
A Happy Chappie

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