Hi, Karl Newman wrote: > I want the same thing, and I looked into doing this with GPSBabel, too, and > while it has the capability to filter points inside or outside a radius (or > polygon, etc.), that function does not work on trackpoints, and the author > had said something to the effect of "it doesn't make sense to have it > enabled for trackpoints because it would make false tracks (jumps, etc.)".
Those free software authors are bastards aren't they ;-) Someone on talk-de recently posted the following magic spell he's using with gpsbabel to simplify his tracks, clear them of point clouds and exclude certain areas: -x nuketypes,waypoints,routes -x transform,wpt=trk -x nuketypes,tracks -x polygon,file=europa.txt -x polygon,file=gruener.txt,exclude -x sort,time -x transform,trk=wpt -x nuketypes,waypoints -x track,pack,sdistance=0.2k,split=20s -x position,distance=1m The clever bit seems to be the -x transform incantantions with which he converts trackpoints to waypoints before applying the polygon filter, then transforms them back! Bye Frederik -- Frederik Ramm ## eMail [email protected] ## N49°00'09" E008°23'33" _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
