Imports github.com/flopp/go-coordsparser github.com/fogleman/gg github.com/Wessie/appdirs github.com/golang/geo/s2 github.com/golang/geo/s1 github.com/tkrajina/gpxgo/gpx Standard library imports bytes errors fmt io image/draw image/png image image/color image/jpeg io/ioutil log math net/http os path/filepath regexp strconv strings