[fpc-pascal] sorting and merging array of records

[waldo kitty]

On 1/10/2012 05:39, Sven Barth wrote:
>
> // somewhere else:
> aList.Sort(@SatDataCompare);
>
> What I wrote here might not be perfect, but it should give you a start.

thank you very much! it has definitely given me some ideas... one thing that 
concerns me, though, is that i'm using FPC 2.4.5 console mode... this fgl unit 
is available in this FPC for this line?

 > type
 > TSatDataList = specialize TFPGList<three_line_data>;


the other thing i'm trying to figure out is if i can easily and speedily pull 
portions of the satdata fields for the sort and duplicate functions... i'm 
thinking that it would be faster to expand the record into each of its actual 
fields and fill them during import... i think i'd rather copy(x,y,z) to 
individual record field during import rather than pulling the needed fields 
during the sorting and merging phases...

and one more trip through the raft of data can adjust the social name for the 
satellite :)

i'm trying to figure out how to also work out a method of deleting TLEs of birds 
who are down... another list to process and walk through :P

thanks again for the info!