A library for or load, manipulate, and save GPS data in GPX format (https://www.topografix.com/gpx.asp, a light-weight XML data format for the interchange of GPS data - waypoints, routes, and tracks). View the official GPX 1.1 Schema at https://www.topografix.com/GPX/1/1/gpx.xsd.
Also support export from Gpx into:
- KML (a file format used to display geographic data in an Earth browser such as Google Earth, https://developers.google.com/kml/)
- CSV (not implemented yet)
In your dart/flutter project add the dependency:
dependencies:
...
gpx: ^2.2.2
To read XML input use the GpxReader object and function Gpx fromString(String input):
import 'package:gpx/gpx.dart';
main() {
// create gpx from xml string
var xmlGpx = GpxReader().fromString('<?xml version="1.0" encoding="UTF-8"?>'
'<gpx version="1.1" creator="dart-gpx library">'
'<wpt lat="-25.7996" lon="-62.8666"><ele>10.0</ele><name>Monte Quemado</name><desc>Argentina</desc></wpt>'
'</gpx>');
print(xmlGpx);
print(xmlGpx.wpts);
}To write object to XML use the GpxWriter object and function String asString(Gpx gpx, {bool pretty = false}):
import 'package:gpx/gpx.dart';
main() {
// create gpx object
var gpx = Gpx();
gpx.creator = "dart-gpx library";
gpx.wpts = [
Wpt(lat: 36.62, lon: 101.77, ele: 10.0, name: 'Xining', desc: 'China'),
];
// generate xml string
var gpxString = GpxWriter().asString(gpx, pretty: true);
print(gpxString);
}To export object to KML use the KmlWriter object and function String asString(Gpx gpx, {bool pretty = false}):
import 'package:gpx/gpx.dart';
main() {
// create gpx object
var gpx = Gpx();
gpx.creator = "dart-gpx library";
gpx.wpts = [
Wpt(lat: 36.62, lon: 101.77, ele: 10.0, name: 'Xining', desc: 'China'),
];
// generate xml string
var kmlString = KmlWriter().asString(gpx, pretty: true);
print(kmlString);
// generate xml string with altitude mode - clampToGround
var kmlString = KmlWriter(altitudeMode: AltitudeMode.clampToGround)
.asString(gpx, pretty: true);
print(kmlString);
}This is just an initial version of the package. There are still some limitations:
- No support for GPX 1.0.
- Read/write only from strings.
- Doesn't validate schema declarations.
Please file feature requests and bugs at the issue tracker.
The Apache 2.0 License, see LICENSE.