Request : Heliosphere

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boubaz
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Request : Heliosphere

Post #1by boubaz » 08.09.2007, 09:14

Hi addon makers,
You surely know about the heliosphere, if not so just take a quick look at http://en.wikipedia.org/wiki/Heliosphere.

The Heliosphere is an amazing structure of the solar system. It is mainly produced by the Sun and with a little bit of imagination it looks like a cell in biological terms.
Image
Image

Something so fundamental should be in Celestia !
:wink:

May the Force be with you.

Edit, may be more inspiring :
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full http://upload.wikimedia.org/wikipedia/c ... region.jpg

ElChristou
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Post #2by ElChristou » 08.09.2007, 11:49

Welcome!

As I was making my Voyager and Pioneer models, I've done a test model for the heliosphere, but such model cannot be used because it cause lots of problem of selection. From outside you cannot select anymore the sun and planets, from inside things become also not so easy to select...

For this kind of stuff, we do need an unclickable class...
Image

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Hungry4info
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Post #3by Hungry4info » 08.09.2007, 19:40

With the exception of stars, Celestia is designed to render things as they would appear to the naked eye. The heliosphere and helipause are completely invisible. If you want to create it, that's fine, but I'm sure it would remain an add-on, and never be used in the default version of Celestia.
Current Setup:
Windows 7 64 bit. Celestia 1.6.0.
AMD Athlon Processor, 1.6 Ghz, 3 Gb RAM
ATI Radeon HD 3200 Graphics

ElChristou
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Post #4by ElChristou » 08.09.2007, 21:11

Hungry4info wrote:With the exception of stars, Celestia is designed to render things as they would appear to the naked eye. The heliosphere and helipause are completely invisible. If you want to create it, that's fine, but I'm sure it would remain an add-on, and never be used in the default version of Celestia.


Hungry, I think boubaz knows this; see the first line of his post... (and it's also why I took the time of answering! :wink:)
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freiza667
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Re: Request : Heliosphere

Post #5by freiza667 » 28.05.2010, 20:09

im gona make 1 not done yet
temo.jpg
ternb.jpg
jghhhhh.jpg

wen im done u can all have it :wink:
Last edited by freiza667 on 30.05.2010, 22:57, edited 1 time in total.

InconspicuousBarrel
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Re: Request : Heliosphere

Post #6by InconspicuousBarrel » 28.05.2010, 20:39

For now this could easily be a nebula, but I agree a simple "unclickable" class would be awesome. This is also another reason for raising the SSC view limit.

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Chuft-Captain
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Re: Request : Heliosphere

Post #7by Chuft-Captain » 29.05.2010, 05:32

InconspicuousBarrel wrote:This is also another reason for raising the SSC view limit.
I agree, however IMO a more elegant solution (rather than simply raising the limit to a higher, yet still arbitrary value) is to decide whether to display the object based on it's apparent size onscreen (regardless of how distant it is from the observer).
eg. As an object's displayed size becomes smaller and smaller (either by moving the observer further from it, or just zooming out using the . key), eventually the object may subtend an angle significantly smaller than a single pixel, at which point there's no point displaying it anymore.

Likewise, using the , (comma) key to magnify a very distant object, would only display the object when you have narrowed the FOV enough that the apparent size of the object is greater than the approx. size of a pixel.

So with this approach there is no need for an arbitrary cutoff limit, as objects will only be displayed when they need to be based on their apparent size on screen (regardless of distance).

I think I've made this suggestion already to Chris some years ago, but I don't know if he has any current or future plans to address this issue.
"Is a planetary surface the right place for an expanding technological civilization?"
-- Gerard K. O'Neill (1969)

CATALOG SYNTAX HIGHLIGHTING TOOLS LAGRANGE POINTS

InconspicuousBarrel
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Re: Request : Heliosphere

Post #8by InconspicuousBarrel » 29.05.2010, 05:41

I like that idea! I wonder if it would be possible to include orbits as well as just objects.

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Chuft-Captain
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Re: Request : Heliosphere

Post #9by Chuft-Captain » 29.05.2010, 16:13

BTW. I believe that what I've described above is somewhat similar to how the code already works for objects within the 1 LY limit, it's just that over the 1 LY limit they just don't get displayed.
In practice, any planet in any solar system (ie. in an SSC file) would be so small as to be invisible at this range, which is probably why Chris originally decided on that limit, however it ruins it a bit for extended objects like the helosheath, the heliopause, or Rungworlds and Ringworlds. :wink:
"Is a planetary surface the right place for an expanding technological civilization?"
-- Gerard K. O'Neill (1969)

CATALOG SYNTAX HIGHLIGHTING TOOLS LAGRANGE POINTS

freiza667
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Re: Request : Heliosphere

Post #10by freiza667 » 30.05.2010, 23:06

well can any 1 help me plz is hard to do the rest


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