[talk-ph] sanity check for maintaining GPS tracks

I have hundreds of GPS tracks. Some are uploaded in OSM, some I forgot to upload. Some are clean, some are dirty, some are squiggly and some are a big cloud of points pointing to my house. Any advice on how to maintain/clean the tracks before uploading? -- cheers, maning

[talk-ph] POI mapping for really non-mapping people

I was asked to do some mapping workshop for a bunch of really non-mapping people. What they want is to map some cultural POIs within their city and produce a big paper map out of it. Of course, I can teach them some FOSS GIS incantations, but that would make the 2-3 hour long workshop

Re: [talk-ph] sanity check for maintaining GPS tracks

Hi, For the cleaning part, I use GPSBabel to: 1. remove low hdop/vdop (and low satellites) points 2. remove close points (1m) due to traffic-lights, parking-pauses to reduce overall file-size. 3. remove areas I often go or park to avoid clouds. (this first needs transformation to wpt, then back

Re: [talk-ph] sanity check for maintaining GPS tracks

Totor wrote, On Tuesday, 13 April, 2010 08:23 PM: This is the script I use ($1 is input file, $2 is output file): gpsbabel -i nmea -f $1 -x discard,hdop=2,vdop=3,sat=4 -x position,distance=1m -x transform,wpt=trk,del -x polygon,exclude,file=area.loc -x transform,trk=wpt,del -o gpx -F $2

Re: [talk-ph] sanity check for maintaining GPS tracks

On a slightly related note ... I just went to the gpsbabel home page and looked at the features on the new beta release. Apparently it now supports the Locosys GT-31 ( the GPStoGo model), which it didn't when I used it last May. Just thought I'd pass that on. Jim -- datalude: