Celestia Forums

Well, here's a small addon placing the Tunguska impact site on Earth (according to an italian team). Supposedly, there's a strange lake there, but I can't see it in Celestia (with a 16k texture anyway).


Anyone has suggestions about how to improve the addon ? Currently, I placed a simple "splat" model on the surface.

There's a team which should find more information about the site, this summer (2008).

More information here :

http://news.bbc.co.uk/2/hi/science/nature/6239334.stm
http://www.grisda.org/origins/09082.htm

EDIT : I'm also interested to show major impact craters on Earth, according to this list :

http://en.wikipedia.org/wiki/List_of_im ... s_on_Earth

There's also this complete database site :

http://www.unb.ca/passc/ImpactDatabase/index.html

O MY G ! In what project I fell again !?

From this page, we could show about 155 major craters on Earth, of diameter larger than, say, 1 km.
http://www.unb.ca/passc/ImpactDatabase/ ... rSort2.htm
What class should we use for all of them ? Location ?

Cham,

Why not use the official code for Crater?

"cratername" "Sol/Earth" { Class "surfacefeature" ... }

Location "cratername" "Sol/Earth" { Type "AA" ...}

The list of recognized feature names is at
http://en.wikibooks.org/wiki/Celestia/S ... ers..._.7D

Thanks Selden,
what are the differences between a "location" and a "surfacefeature" ? I never used surfacefeature yet.

Cham,

Class "surfacefeature" is available in Celestia v1.6 (built from svn) and ignored in V1.5.1.

It indicates an object which is on the surface of another object.

More details about v1.6 features, including the characteristics of the new Classes, are available at
http://en.wikibooks.org/wiki/Celestia/160Files

Regular objects, specified only by quoted names, can include Mesh declarations.
Locations are only positions, indicated by markers.

I think it would be nice if the Location Type (and other) codes could be used in regular object definitions and be used to select them somehow, but I don't think either can be done yet. (I could be wrong: I haven't done much with Location objects.)