|Finding stations that moved through a position at a certain time||Rupert Swarbrick||7/17/12 4:59 PM|
I wonder if it's possible to use aprs.fi to answer the question: "Which ships moved through the following bit of shipping lane last Sunday in the following hour"? It's less than 7 days ago, but this is one of the shipping lanes in the English Channel, so there are a heck of a lot of ships going through... Am I missing a button / API call that lets me work this out, or is it not currently supported?
|Re: [aprsfi] Finding stations that moved through a position at a certain time||Heikki Hannikainen||7/18/12 4:05 AM|
Unfortunately no. It'd be a nice feature, but such queries are very heavy
for the database, because there are no efficient indexes that would allow
a bounding-box + time range search available in the database. I'd have to
build that manually, and haven't gotten around to doing that quite yet.
|RE: [aprsfi] Finding stations that moved through a position at a certain time||Prospero||7/18/12 7:07 AM|
If the area of interest is (or can be defined as) a port, the
marinetraffic.com site can support a bounding box and record comings and
goings. I don't know what their rules are for port definitions, but if one
could be set up that suits your purpose, there is some functionality
available to provide inventory and history.
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