Updates in the Saturn system

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granthutchison
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Updates in the Saturn system

Post #1by granthutchison » 06.01.2008, 01:42

Some changes to the Saturnian system which you may want to have:
http://celestia.cvs.sourceforge.net/celestia/celestia/extras/numberedmoons.ssc
http://celestia.cvs.sourceforge.net/celestia/celestia/data/ring_locs.ssc
http://celestia.cvs.sourceforge.net/celestia/celestia/data/saturnmoons_locs.ssc

The IAU has confessed to misspelling Erriapo and Hyrokkin: they're now Erriapus and Hyrrokkin. The rings have acquired a new name for a major division: the Roche division between rings A and F. And a number of new feature names have been added for Titan.
Unfortunately, the current texture doesn't include the northern "Lake District" of Titan, but the names of the major lakes are now all there, ready. :)

(I've also updated location names for Venus, Mars, Io and Europa, but the changes are unlikely to be noticeable unless you have a specific interest.)

Grant Hutchison

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Post #2by ajtribick » 06.01.2008, 02:10

Thanks for the updates! :)

Unfortunately in poking around with it, I found two bugs. :(

The name CHING-TU gets displayed as ?‡NG-TU in the objects list (converts CHI to ?‡). The label displayed at the top left of the Celestia window is fine however.

Secondly there are quite a few locations defined with Size 0 in the saturnmoons_locs.ssc. These do not play nice with navigation - it seems to disable radial motion (mouse wheel, or left+right+move up/down) when these objects are followed (F) or sync orbited (Y).

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Post #3by BobHegwood » 06.01.2008, 02:44

Thanks VERY much for the updates Mr. Hutchison...

It's good to see that you ain't dead yet too. :lol:

Seriously, I appreciate these updates to my favorite program, so
thanks again.

Brain-Dead
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Gateway Pentium Dual-Core CPU E5200, 2.5GHz
7 GB RAM, 500 GB hard disk, Nvidia GeForce 7100
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Post #4by ajtribick » 06.01.2008, 02:55

Further with the size zero locations problem: the following files contain size zero locations:

gaspra_locs.ssc
jupitermoons_locs.ssc
merc_locs.ssc
saturnmoons_locs.ssc

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Post #5by Hungry4info » 06.01.2008, 07:23

Thank-you for the updates.
Current Setup:
Windows 7 64 bit. Celestia 1.6.0.
AMD Athlon Processor, 1.6 Ghz, 3 Gb RAM
ATI Radeon HD 3200 Graphics

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Post #6by Vincent » 06.01.2008, 10:27

chaos syndrome wrote:The name CHING-TU gets displayed as ?‡NG-TU in the objects list (converts CHI to ?‡). The label displayed at the top left of the Celestia window is fine however.

I have a fix for this bug that consists in adding a test in ReplaceGreekLetterAbbr (utf8.cpp) to check whether the character next to the Greek Letter Abbreviation is a space char or not. Could you please report this bug on the Sourceforge tracker ? I'll post the patch there...

Edit: The bug was already reported on the Sourceforge tracker. I've posted the fix.
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Post #7by granthutchison » 06.01.2008, 14:04

chaos syndrome wrote:Secondly there are quite a few locations defined with Size 0 in the saturnmoons_locs.ssc. These do not play nice with navigation - it seems to disable radial motion (mouse wheel, or left+right+move up/down) when these objects are followed (F) or sync orbited (Y).
The IAU often initially lists features with zero size. They also often list the location but not the size of classical albedo features. These null entries didn't seem to do much harm, since their names just don't show up as you fly around looking at location names.
I guess you must have typed in a specific name and then gone to it?

But I do see that I previously estimated the size of Titan's albedo features so that they'd show up on-screen, and this time I've inadvertently overwritten those estimates with raw zeroes straight from the IAU. I'll restore my original estimates.

Grant

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Post #8by granthutchison » 06.01.2008, 14:10

Vincent wrote:I have a fix for this bug that consists in adding a test in ReplaceGreekLetterAbbr (utf8.cpp) to check whether the character next to the Greek Letter Abbreviation is a space char or not.
It might be better to check if it's a space or a number. There are some stars with superscript numbers on their Bayer letters, which are listed in Celestia as, for instance, PI3 Ori or RHO1 Cnc.

Grant

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Post #9by danielj » 06.01.2008, 14:35

It??s about time to update Saturnian moons??TEXTURES!!

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Post #10by Vincent » 06.01.2008, 14:35

granthutchison wrote:It might be better to check if it's a space or a number. There are some stars with superscript numbers on their Bayer letters, which are listed in Celestia as, for instance, PI3 Ori or RHO1 Cnc.

Yes, that's right, chaos syndrome already made this suggestion. I'll add this possibility to the fix.

Edit: I've posted the revised patch on the Sourceforge tracker:
https://sourceforge.net/tracker/index.p ... tid=121302
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Post #11by granthutchison » 06.01.2008, 16:05

danielj wrote:It??s about time to update Saturnian moons??TEXTURES!!
Ah, it's nice to see some things never change. :)
I believe the traditional responses at this point go:

US: Well, go ahead and make some textures.
DANIEL: I don't do textures. I just want textures.
US: Well, try to have some patience, then.

Grant

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Post #12by t00fri » 06.01.2008, 16:52

granthutchison wrote:
danielj wrote:It??s about time to update Saturnian moons??TEXTURES!!
Ah, it's nice to see some things never change. :)
I believe the traditional responses at this point go:

US: Well, go ahead and make some textures.
DANIEL: I don't do textures. I just want textures.
US: Well, try to have some patience, then.

Grant


As I wrote repeatedly in reply to Daniels repeated quest:

I did quite many hires updates of Saturnian moons some time ago, already!

They are available for download at CVS or even previous source distributions. Since new official Celestia distros tend to take their time and many Windows users NEVER look into the Celestia sources, this may have been overlooked.

In detail one may find in CVS-> textures/hires my
  • 4k Japetus
  • 4k Tethys
  • 4k Titan
  • 2k Phoebe
  • 2k Moon & Moonbumpmap


I have made more, updated and bigger Saturn moon textures, see e.g.
http://forum.celestialmatters.org/viewtopic.php?t=100

but again the forthcoming official Celestia version takes it's time. I am basically not making add-ons. I mostly do textures for the official distribution (and for myself). For reasons of download file size, the "hires" textures of Celestia obviously cannot be too large...

Bye Fridger
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Post #13by Guckytos » 06.01.2008, 18:15

t00fri wrote:
They are available for download at CVS or even previous source distributions. Since new official Celestia distros tend to take their time and many Windows users NEVER look into the Celestia sources, this may have been overlooked.

In detail one may find in CVS-> textures/hires my
  • 4k Japetus
  • 4k Tethys
  • 4k Titan
  • 2k Phoebe
  • 2k Moon & Moonbumpmap

Bye Fridger


Ah, Fridger. Just for your info:

Your high res textures are ONLY available in the CVS. The official source for 1.4.1 for example doesn't have them in it.

Regards,

Guckytos

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Post #14by t00fri » 06.01.2008, 18:49

Your high res textures are ONLY available in the CVS. The official source for 1.4.1 for example doesn't have them in it.


Yes, I found out about it recently. But it was certainly agreed between me and Chris that they will be in. Probably, he had forgotten to actually put them in at last. They were partially included already in our Celestia-FT-1.x releases which immediately preceeded 1.4.0.

The 1.4.0 source release included
my 2k Japetus (with bump and spec files) and my 4k Titan in textures/hires and of course my full reduced texture set was included in textures/medres of 1.4.1.

Bye Fridger
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Post #15by granthutchison » 06.01.2008, 22:17

chaos syndrome wrote:... there are quite a few locations defined with Size 0 in the saturnmoons_locs.ssc.
I've now restored the original estimated sizes for these features: the new file should be on the CVS tree by now.

Grant

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Post #16by Vincent » 06.01.2008, 22:36

And I just checked in a fix for the bug that caused inappropriate Greek letter subsitution.
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Post #17by ajtribick » 06.01.2008, 22:51

Thanks guys. :)

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Post #18by danielj » 06.01.2008, 23:56

But THESE textures are from 2005! :x Since then,no really update in saturnian moons.You were doing a new 4k Iapetus and 16k Enceladus I have been reading Celestia Matters foruns,but since 15-10-2007,there was NO UPDATE AT ALL!Why did you give up?
I rather pay than waiting too much for this things,but unfournatelly even the paid programms ?­sn??t as good as this...
Besides I wasn??t talking only with you.There were several developers that appears to be sleeping,because months without update is clearly LACK OF INTEREST and not LACK OF TIME!
Sorry,but this is my opinion...


t00fri wrote:
granthutchison wrote:
danielj wrote:It??s about time to update Saturnian moons??TEXTURES!!
Ah, it's nice to see some things never change. :)
I believe the traditional responses at this point go:

US: Well, go ahead and make some textures.
DANIEL: I don't do textures. I just want textures.
US: Well, try to have some patience, then.

Grant

As I wrote repeatedly in reply to Daniels repeated quest:

I did quite many hires updates of Saturnian moons some time ago, already!

They are available for download at CVS or even previous source distributions. Since new official Celestia distros tend to take their time and many Windows users NEVER look into the Celestia sources, this may have been overlooked.

In detail one may find in CVS-> textures/hires my
  • 4k Japetus
  • 4k Tethys
  • 4k Titan
  • 2k Phoebe
  • 2k Moon & Moonbumpmap

I have made more, updated and bigger Saturn moon textures, see e.g.
http://forum.celestialmatters.org/viewtopic.php?t=100

but again the forthcoming official Celestia version takes it's time. I am basically not making add-ons. I mostly do textures for the official distribution (and for myself). For reasons of download file size, the "hires" textures of Celestia obviously cannot be too large...

Bye Fridger

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Post #19by chris » 07.01.2008, 00:03

danielj wrote:But THESE textures are from 2005! :x Since then,no really update in saturnian moons.You were doing a new 4k Iapetus and 16k Enceladus I have been reading Celestia Matters foruns,but since 15-10-2007,there was NO UPDATE AT ALL!Why did you give up?
I rather pay than waiting too much for this things,but unfournatelly even the paid programms ?­sn??t as good as this...


While waiting for an official high resolution texture package for Celestia, why don't you just use some of Steve Albers's planetary maps:

http://laps.noaa.gov/albers/sos/sos.html

There are 8k maps of Enceladus and Iapetus, and 4k maps of most of the other satellites.

--Chris

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Post #20by LordFerret » 07.01.2008, 06:06

And here I am still living with 1k maps because my graphics card doesn't have memory enough. :?

I've not yet grabbed the v1.5 Win version yet, but I'm hoping when I do my machine doesn't choke on it. :(


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