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