Celestia Forums

Hi,

This may be a stupid question but is there a spacecraft iterator in Lua/celX?

eg. Take this:
I want to do something like:

Get my drift??

Thanks in advance...
CC

Chuft-Captain wrote:This may be a stupid question but is there a spacecraft iterator in Lua/celX?

CC,

This is not a stupid question. There's no spacecraft iterator available in celx so far.
You'll have to search for spacecraft through the list of all solar system bodies.

Chuft-Captain wrote:I want to do something like:

Code: Select all
for spacecraft in celestia:spacecrafts() do
for i,v in ipairs(my_list_of_spacecraft) do
if spacecraft:name() == v then
spacecraft:mark( "green", "disk",10, 1, v )
end
end

Chuft-Captain,

You can use the following code:



This should work if "my_list_of_spacecraft" is a list of strings.

Paul

Vincent wrote:

Chuft-Captain wrote:This may be a stupid question but is there a spacecraft iterator in Lua/celX?

CC,

This is not a stupid question. There's no spacecraft iterator available in celx so far.
You'll have to search for spacecraft through the list of all solar system bodies.

I was afraid you'd say that!!

Do you know how to access these in Lua, or better yet: is there a way to access all the children of a specified parent object (eg. Earth )?
This would speed things up considerably.

What I'm looking at doing is writing a script to selectively mark (according to some yet to be decided criteria) selected groups of jdavies satellites: viewtopic.php?f=6&t=13343

The current count in his addon is 2918.

Cheers
CC

Chuft-Captain wrote:Do you know how to access these in Lua, or better yet: is there a way to access all the children of a specified parent object (eg. Earth )?

The following lines create a table containing all the children of Earth:

More information is available at the Celestia Wiki celx page.

SU(3)xSU(2)xU(1) wrote:

Code: Select all

         for i,v in ipairs(my_list_of_spacecraft) do
               local w = celestia:find(v)
                w:mark( "green", "disk",10, 1, v )
          end


This should work if "my_list_of_spacecraft" is a list of strings.

Paul

Thanks Paul, that seems to work nicely.
CC

Thanks guys,

Here's a very rudimentary test version: DELETED - see next post below
This is what it does:

This sort of works but needs a lot of work. Does not seem to mark all the selected objects according to the criteria. eg. Doesn't seem to mark the FENGYUN 1C Debris at all. (I think I need a better approach to pattern matching in the string.find statements).

Here's a new improved bunch of scripts that mark a few selected types of satellites in different colours as well as the more than 2000 bits of junk from the FENGJUN 1C satellite that the Russians shot down a while ago.
(You must have jdavies satellites installed: http://shatters.net/forum/viewtopic.php?f=6&t=13343
Just unzip into your scripts folder and you should find them in the File->Scripts menu.

This contains:
1. Mark Satellites
2. Mark FENGYUN 1C Debris
3. Mark Satellites and Debris
4. Unmark ALL

After you've run the scripts: click on this celURL