That's how I do it, and I use a bit of Windows software, "GPS Utility" (www.gpsu.co.uk) to generate the shape files. GPSU is designed primarily to manage waypoints/tracks for a GPS unit, but it imports and exports a lot of formats, one of which happens to be shapefiles. I had to write my dbfawk files by hand, but that's not too difficult. -- William McKeehan KI4HDU http://mckeehan.homeip.net
On Tue, March 31, 2009 5:58 pm, Tom Russo wrote: > On Tue, Mar 31, 2009 at 02:41:40PM -0700, we recorded a bogon-computron > collision of the <[email protected]> flavor, containing: >> On Sun, 29 Mar 2009, Brett Friermood wrote: >> >> > I'm trying to figure out a good way to add markers to my map display. >> > >> > I would like to mark the locations of the DNR's fire towers around me to >> be >> > able to plot sightings using a direction finding object. >> > >> > I thought of using objects, but I don't want to broadcast them if I choose >> > to broadcast other objects. I was tried using a small picture with a .geo >> > file, but when zooming in and out the size changes. >> > >> > Is there any other way to do something like this? >> >> In other APRS programs an "overlay" file might be the best way to do >> this. Xastir doesn't support overlay files though. >> >> I can think of a few ways, some better than others: > [...] >> *) Create a map containing the objects. You could do this by >> plotting an object and then moving it around to draw something with >> it's track, then save the track. This creates a shapefile map which >> can then be renamed and moved to the Xastir Map heirarchy somewhere >> and used as a regular map. > [...] >> >> There may be other ways I can't think of just now, perhaps others >> will pipe up with more ideas. > > Look in README.MAPS under "Rolling your own shapefile maps." It is around 46% > of the way down the file. I find that the easiest way to do it is the fourth > listed method, but it involves having shpcreate, dbfcreate, shpadd and dbfadd > from the shapelib distribution installed (easy stuff, and one of these days I > should change our internal shapelib set-up so it builds them, too). > > Point shapefiles are the closest thing that Xastir has to overlays. In fact, > it should be a simple matter to script an overlay-to-shapefile converter, > especially in python with GDAL support. <gets idea for evening hackage...> > > -- > Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/ > Tijeras, NM QRPL#1592 K2#398 SOC#236 http://kevan.org/brain.cgi?DDTNM > In some cultures what I do would be considered normal. > -- Ineffective daily affirmation > > _______________________________________________ > Xastir mailing list > [email protected] > http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir > > _______________________________________________ Xastir mailing list [email protected] http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
