Planetary Interiors: Callisto

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Fenerit M
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#1by Fenerit » 31.10.2010, 01:58

Image

Extract in "..extras\" folder. Start Celestia, goto to Callisto and launch the script. Re-launch the script again to hide the add-on.

Hint: because the screen right side of the cross-section lies on the prime meridian respect to the Earth while the left side is at -90 east, in the case one do use the "d" key as shortcut to place the camera upon its real Earth's location even for the other bodies, he could to set the "FixedRotation {AscendingNode}" SSC directive, as

- "FixedRotation {AscendingNode (45 + its longitude)}" for westward
- "FixedRotation {AscendingNode (-45 - its longitude)}" for eastward

in order to center the cross-section. For this purpose, and to avoid fighten with the orientation in latitude, a south emisphere version of the model is included.

Notice that the surface texture is named "callisto.png" and it's a black 512x256 PNG texture. This mean that in order to have your favourite Callisto's texture as map (within the main "..\textures\.." folder), you must follow two rules:

- if your favorite texture is named "callisto.png", then simply remove such add-on's texture;

- if your favorite texture has another name and extension, you must rename the black texture as the your favorite's one in order to "fake" the CMODview in acknowledge it as you favorite. By loading the add-on inside the CMODview, you must assign that "fake" texture to the external cross-section's mesh, save the model, and then remove it from the folder. In this manner will be set the your.
All this because is futile to upload with a name to be guess a texture that one already has, and that the black one could be enough for its interiors concerns (meanwhile shortening the pack and the graphic cards's payload).

References:
http://es.ucsc.edu/~jhr/research/index.html#publications
http://jupiter.ethz.ch/~pjt/bibliography.html
http://www.es.ucsc.edu/~fnimmo/website/papers.html

Zip here (about 6 Mb)
Last edited by Fenerit on 07.02.2011, 18:55, edited 6 times in total.
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Re: Planetary Interiors: Callisto

#2by jogad » 31.10.2010, 10:12

Hi,

Very good and well done addon! :D

I have 2 problems with it yet. A little one and a big one.

- little one first: the surface is always white and I cannot get the surface of Callisto for it. This is a very little problem for me because the white surface is fine when we are looking at the interior of Callisto.

- More important problem: This kind of addon is very useful for education and should be translated easily to another language. I cannot see the text anywhere and thus I am unable to translate it. Is there a quick way to do that :?:

:mrgreen:

Fenerit M
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Re: Planetary Interiors: Callisto

#3by Fenerit » 31.10.2010, 13:00

jogad wrote:Hi,

Very good and well done addon! :D

I have 2 problems with it yet. A little one and a big one.

- little one first: the surface is always white and I cannot get the surface of Callisto for it. This is a very little problem for me because the white surface is fine when we are looking at the interior of Callisto.

- More important problem: This kind of addon is very useful for education and should be translated easily to another language. I cannot see the text anywhere and thus I am unable to translate it. Is there a quick way to do that :?:

:mrgreen:

The little one: the texture can be changed in the way explained: although as it is, it should be black and not white :roll:

The big one: the texts are quotes from the planetary geology papers above, in order to match corrected english, instead of using my bad grammar. The translations requires that motherlanguages people do translate correctly such statements in texts forms and then send to me the texts: I need to modelling that.
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Re: Planetary Interiors: Callisto

#4by Fenerit » 31.10.2010, 13:15

OOOPS! I found the issue. The add-on texture is named "callisto.dds" whitin the model, for this you can't get the favorite texture if it is named "callisto.png", because the extention into the model rest "dds". If your texture is named "callisto.png", then open the model with the CMODview and assign the black "callisto.png"; this will change the extension within the model from "DDS" to "PNG". Then remove it. Sorry, I will fix that. For who has the favorite Callisto texture in DDS format, the problem doesn't sussist. Sorry, these are issues that arose in try to set the things as suitables as possible. :x
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Re: Planetary Interiors: Callisto

#5by Fenerit » 31.10.2010, 14:57

Link updated! Who doesn't wish to dowload the pack again but want a black texture, can do a generic "callisto.dds" texture as png's substitution. Notice that the south version was corrected in its texture's setting.
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Re: Planetary Interiors: Callisto

#6by jogad » 31.10.2010, 22:03

Fenerit wrote:Link updated!
Thank you! no more white surface now. 8)

Fenerit wrote:The translations requires that motherlanguages people do translate correctly such statements in texts forms and then send to me the texts: I need to modelling that.
Very kind proposal. Thanks you so much. :D
I send you a translation by PM. If you agree and it is not too much work maybe I send you French translations for the other interiors of planets you have on your site.
All theese addons are very interesting. :mrgreen:

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Re: Planetary Interiors: Callisto

#7by Fenerit » 31.10.2010, 22:48

jogad wrote:
Fenerit wrote:Link updated!
Thank you! no more white surface now. 8)

Fenerit wrote:The translations requires that motherlanguages people do translate correctly such statements in texts forms and then send to me the texts: I need to modelling that.
Very kind proposal. Thanks you so much. :D
I send you a translation by PM. If you agree and it is not too much work maybe I send you French translations for the other interiors of planets you have on your site.
All theese addons are very interesting. :mrgreen:

Thank Jo?l for finding them interestings. Notice that the quotes are literally, thus no "interpretation's changes" should be required. just about the degree Kelvin: I'm of the "old school", in which degree's symbols (K, C, R, F) were "degreeized" (°K, °C, °F, °R); now is no longer used that convention. What is the situation in France? :mrgreen:

P.S.
Now I find my server down, usually happen here and there in the time, if the problem persist, I will post the link elsewhere.
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Re: Planetary Interiors: Callisto

#8by jogad » 01.11.2010, 08:58

Fenerit wrote:Notice that the quotes are literally, thus no "interpretation's changes" should be required. just about the degree Kelvin: I'm of the "old school", in which degree's symbols (K, C, R, F) were "degreeized" (°K, °C, °F, °R); now is no longer used that convention. What is the situation in France? :mrgreen:

In fact even without "Interpretation's changes" the translation is not so easy an requires some knowledge of the scientific background. :roll:
I am also probably "old school" and I used to write °K but it is an error and must be written only K as an absolute mesurement unit.
(and we should say "Kelvin" instead of "degr? Kelvin")
In contrast °C and °F that are relative mesurements must be preceded with the ° symbol (or the world "degr?")
Another difference for French translations: the decimal separator is not the point but the comma.
:mrgreen:

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Re: Planetary Interiors: Callisto

#9by Fenerit » 01.11.2010, 10:17

jogad wrote:I am also probably "old school" and I used to write °K but it is an error and must be written only K as an absolute mesurement unit.
(and we should say "Kelvin" instead of "degr? Kelvin")
In contrast °C and °F that are relative mesurements must be preceded with the ° symbol (or the world "degr?")
Another difference for French translations: the decimal separator is not the point but the comma.
:mrgreen:

When was at school, if one after an elaboration of law of the gases PV=KT would have wrote K without degree sign, he would have got 4 in the bill. K was the constant, not the degree. :wink:
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Re: Planetary Interiors: Callisto

#10by Fenerit » 01.11.2010, 10:24

Well, seem that the server's problem persist, so you can find the file here:

http://marauder.webng.com/files/callisto_interior.zip
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Re: Planetary Interiors: Callisto

#11by Fenerit » 01.11.2010, 16:34

Jo?l, just a precisation: where the text says "2-layer model", you have translated as "Mod?le n°2". Now, I do not remember whether in french is used "layer" or "layerique" :wink: but this is pretty important, because such typing isn't relevant just to a different modelling of the Callisto's interior from geophysical constrains in our posses, (mainly the moment of inertia and the rheology of the ice/rocks, being the remains onto simulated realms), as were a kind of sorting, but to its supposed "stratification". If you can get the suited word, tonight the french translation is end. 8)

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Re: Planetary Interiors: Callisto

#12by jogad » 02.11.2010, 17:51

Hi Massimo

I did not expect a so quick an answer from you.
Very impressive. 8) Yes I know... Never at rest :wink:

In French "layer" is "couche".
But wait a moment before committing the translation because there are still some points that are unclear.
Instead of cluttering the forum with this all this stuff, I send you a PM with my questions and answers.
:mrgreen:

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Re: Planetary Interiors: Callisto

#13by Fenerit » 09.12.2010, 18:15

Because one could be in trouble "reading" such planetary interior schemas due to certain geophysical parameters and/or to its lack of explicative meanings, I suggest to read this paper:

Subsurface oceans and deep interiors of medium-sized outer planet satellites and large trans-neptunian objects

such paper can be taken over like an "introductive chapter" about geophysicists starts to modelling the icy satellites. However, is useful also for planets as well. The paper set forth the terminologic realm and the mathematic equations used to constraint the satellites' interiors (then is matter of further bulk real data by spacecrafts). For instance, in reading the interiors add-ons, one could be generically ask for:
- What the geophysicist mean with the term: "(one-two-three)layer model"?
- What I must understand with IceI and IceII layers?
- Why the heat is first (from the core) transported by convection and then by conduction?
- Why the rocks sinks onto ice"?
- What mean and because is the "stagnant LID" so important?
- When the tidal heating rules the bodies"?
- Do the liquid water phase occour about at the same depth, proportionally to object's radius?
and so on.
The article (not educational, with plots) is structured in a way that "answers" to such and more claims: e.g., by quoting:
The dominant internal heat sources of planetary satellites
are:
(1) radiogenic heating in the silicate component due to the decay
of the long-lived radiogenic isotopes uranium, thorium
and potassium;
(2) accretional energy as a remnant from the formation process;
(3) energy of differentiation, e.g., the release of gravitational
energy during core formation; and
(4) tidal heating.

2.1. Heat transport within the ice layer
There are two major ways of heat transport in planetary bodies:
thermal conduction and convection. The latter requires the
viscosity of the material (mainly ice or rock) to be sufficiently
small and the convecting layers to be thick enough to initiate
the transport of warm material from the interior to upper parts
of the body and, vice versa. For the icy satellites convection
takes place in the ‘stagnant lid’ regime, where the convective
motion is confined to the lower, warmer part of the layer that is
overlain by a purely conductive lid. First, we consider a purely
conductive ice layer.

etc.
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Re: Planetary Interiors: Callisto

#14by MiR » 09.12.2010, 20:14

Hard work, diligence and a vast amount of knowledge!

Hi Massimo,

I am constantly amazed at how much knowledge you carry along (and have of course)
All of your works!

I'm really impressed :)

Michael

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Re: Planetary Interiors: Callisto

#15by Fenerit » 09.12.2010, 23:17

MiR wrote:Hard work, diligence and a vast amount of knowledge!

Hi Massimo,

I am constantly amazed at how much knowledge you carry along (and have of course)
All of your works!

I'm really impressed :)

Michael

Well, masters of Lord Fener were Lord Kelvin, Lord Rayleigh, Von Helmoltz... :D My interestings are in my profile; something I know best, something else less. My knowledges are close to zero in Biology, Medicine, and all the remains life sciences. I prefer to know where I put my feet before to know how my feet are made.

P.S.
Notice how in SW the tecnology seems belong more to the Empire instead to Rebels. :wink: Is this an "hidden" message of the space saga? :mrgreen:
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Re: Planetary Interiors: Callisto

#16by MiR » 10.12.2010, 23:08

Fenerit wrote:Notice how in SW the tecnology seems belong more to the Empire instead to Rebels. :wink: Is this an "hidden" message of the space saga? :mrgreen:
SW ?!? - :( 8O :? I was puzzling and puzzling and have needed some time until I exactly understood what you mean; It's Star wars, I guess ;-)

Maybe I saw one chapter of SW; Probably more trailers. I can't remember. Too much hullabaloo and "bang-bang" for my taste (but of course very well staged!)

So, my question is; which are the "good" ones? Empire or rebels? :)

Michael

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Re: Planetary Interiors: Callisto

#17by Fenerit » 10.12.2010, 23:46

Eh, Eh! Sorry, you interestings in my new sunglasses :wink: did misleading me about a your more extensive knowledge of the SW movie; my fault, indeed. However, yes, SW is Star Wars.

MiR wrote:Maybe I saw one chapter of SW; Probably more trailers. I can't remember. Too much hullabaloo and "bang-bang" for my taste (but of course very well staged!)

Well, is within the tradition of the western and war movies.

MiR wrote:So, my question is; which are the "good" ones? Empire or rebels? :)

Empire could be the dark side of the science. I'm not an insane supporters of the saga, of course, but it's difficult not seeing in it an analogy with the "atomkraft rush" of the World War II (the Death Star). But are just my impressions. I like the SCI-FI because get matter in which to think about. For instance, I see the movie "The Matrix" just like an history of the mathematics philosophy from Cantor (the Architect) to Turing. Agent Smith/Neo concern the Zermelo's axiom of choice. :)
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Re: Planetary Interiors: Callisto

#18by MiR » 13.12.2010, 17:48

"Matrix" is also unknown to me. :(
Sorry, but I fear I'm an "oldfashioned" one... a "bookworm" (just hoping this transliteration exists in the english language...?)

Michael

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Re: Planetary Interiors: Callisto

#19by Fenerit » 22.12.2010, 17:04

Below is a zip with 2k textures for the Callisto's interior (not the surface)
http://fenerit.webng.com/files/2k_Callisto_interior_tex.zip
2K textures makes the color's "grains" size more dense and smooth; maybe someone prefer so.
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Re: Planetary Interiors: Callisto

#20by Fenerit » 28.12.2010, 05:31

A paper on Callisto's surface geology with close up images is Callisto. Notice that such PDF is "unarrivable" from the site link; if one change the final number get the others jovian moons and more. Working numers are: 13-14-15-18-19-20.
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