SaveToGPX

FNC TMS FNC Maps
1

Hi, can you send me an example, how can I save any direction with all coordinates to GPX(Stream/File/Text)?

2

In TTMSFNCMaps, you have the ability to save your coordinates to a GPX file:

TMSFNCMaps1.SaveToGPXFile
TMSFNCMaps1.SaveToGPXStream
TMSFNCMaps1.SaveToGPXText

So for example, if you wish to save all polylines on the map to a GPX file you can:

TMSFNCMaps1.SaveToGPXFile(TMSFNCMaps1.Polylines.ToCoordinateArray, 'MyFile.gpx');

3

Thanks for your answer, but my question was how can i save a whole direction, not polyline.

TfFNCDirections.FNCGoogleMapsRetrievedDirectionsData(Sender: TObject;
AEventData: TTMSFNCMapsEventData;
ADirectionsData: TTMSFNCGoogleMapsDirectionsData);
...
Self.fGpx := Self.FNCGoogleMaps.SaveToGPXText(ADirectionsData.Routes[0].Path);
...

The result is the GPX header but no coordinates.

5

There was an issue with the ADirectionsData.Routes[].Path value which has now been fixed.
The update will be available with the next release of TMS FNC Maps.

6

I found a solution. In the TTMSFNCCustomGoogleMaps.ParseDirectionsDataInt function, Result.Routes[I].Path is not filled with data.
That's why I wrote a workaround:

 SetLength(ADirectionsData.Routes[0].Path,steps);

//The number of steps must be calculated beforehand
steps := 0;
for I := 0 to Length(ADirectionsData.Routes[0].Legs) - 1 do
for J := 0 to Length(ADirectionsData.Routes[0].Legs[I].Steps) - 1 do
for K := 0 to Length(ADirectionsData.Routes[0].Legs[I].Steps[J].Path) - 1 do begin
ADirectionsData.Routes[0].Path[steps].Latitude := ADirectionsData.Routes[0].Legs[I].Steps[J].Path[K].Latitude;
ADirectionsData.Routes[0].Path[steps].Longitude := ADirectionsData.Routes[0].Legs[I].Steps[J].Path[K].Longitude;
Inc(steps);
end;
Self.FNCGoogleMaps.SaveToGPXFile(ADirectionsData.Routes[0].Path,'E:\out\tst.gpx');

It works fine.

7

Thank you for your feedback!

This is indeed a valid workaround.