Data can be plotted to GoogleEarth with KML. I've never tried loading data from an archive (like from a balloon launch), but I put together a script the other day to grab positions from the APRS World database (APRS-IS data). Below is the message I sent to aprssig about it. If you open the kml file it generates in a text editor, you'll see the basic format--pretty simple. More information is available here: http://code.google.com/apis/kml/documentation/
Tom KD7LXL ---------- Forwarded message ---------- From: Tom Hayward <[EMAIL PROTECTED]> Date: Jun 2, 2007 2:41 PM Subject: Re: [aprssig] db.aprsworl google earth link To: [EMAIL PROTECTED], TAPR APRS Mailing List <[EMAIL PROTECTED]> I reproduced this script with a couple extra features. You can request up to 20 calls, separated by commas. 'az' can be specified in the url, but if not will use the station's heading (you see what they see). If there is no station heading, it defaults to 0. 'tilt' can be specified in the url, but will default to 20 if not specified. 'range' can be specified in the url, but will deafult to 365 if not specified. I haven't looked up the kml spec, so I'm not sure what unit this is, maybe meters. Note: the "fly-to" az, tilt, and range work only when a single call is used. With multiple calls, Google Earth zooms back far enough to show all of them. You can access this script here: http://tomh.us/webdev/aprskml.php?call=kd7lxl&az=60&tilt=60&range=10000 and you can access the source here: http://tomh.us/webdev/aprskml.zip I neglected to include my username and password for the APRS World database in the source. I don't have permission to create accounts, so I'm not going to distribute them either. One thing I didn't know how to do was convert APRS symbol tables to kml icons. If someone can enlighten me on this process, I'll add it to the script. 73 Tom KD7LXL On 6/6/07, Bernard Michael Tyers <[EMAIL PROTECTED]> wrote:
ps: how did you get the waypoints plotted on GoogleEarth? Was that manually done?
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