On 04/13/2010 11:50 AM, maning sambale wrote: > 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? > > The cloud around your house are points that have a low quality.
By removing low quality nodes, the cloud largely disappear. On my GSP, when the claimed accuracy is 3m, then it can be 40m + wrong, therefor I remove all HDOP larger than 2m. The clouds disappears (and some bad points on the road.) You can also ask gpsbable to remove points X km from a defined lat,lon. Below is my cleaning-script, gpsbable can also run on MS Windows. ----8<----8<----8<----8< #!/bin/sh gpsbabel -i gpx -f $1 -x discard,hdop=2 -o gpx -F $(basename $1 .gpx ).del_hdup2.gpx ----8<----8<----8<----8< Linkes: http://wiki.openstreetmap.org/wiki/Gpsbabel http://wiki.openstreetmap.org/wiki/Using_filters_with_GPSBabel -- Michael Eric Menk Linkedin: http://no.linkedin.com/in/mikemenk _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
