id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
16555	Gpx data layer to gpx: no timestamp exported	StephaneP	team	"==== What steps will reproduce the problem?
1. Open a nmea file
2. Convert it to a data layer
3. Convert it back to a gpx

==== What is the expected result?
You can use the new gpx to geolocalize some images

==== What happens instead?
You can't use it for the correlation as there is no timestamp in the gpx file.

==== Please provide any additional information below. Attach a screenshot if possible.
Original gpx (from a nmea to gpx conversion):

{{{
#!xml
<?xml version=""1.0"" encoding=""UTF-8""?>
<gpx version=""1.1"" creator=""GPS Track Editor"" xmlns=""http://www.topografix.com/GPX/1/1"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:gte=""http://www.gpstrackeditor.com/xmlschemas/General/1"" xmlns:gpxtpx=""http://www.garmin.com/xmlschemas/TrackPointExtension/v1"" xmlns:gpxx=""http://www.garmin.com/xmlschemas/GpxExtensions/v3"" targetNamespace=""http://www.topografix.com/GPX/1/1"" elementFormDefault=""qualified"" xsi:schemaLocation=""http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"">
<metadata>
	<name>GPS_2018-07-30_142357</name>
</metadata>
<trk>
	<name>lundi 30 juillet 2018</name>
	<trkseg>
		<trkpt lat=""47.010208"" lon=""-1.583453"">
			<ele>19.80</ele>
			<time>2018-07-30T14:23:57.40Z</time>
			<sat>12</sat>
			<hdop>0.6</hdop>
			<extensions>
				<gte:gps speed=""25.4"" azimuth=""299.6""/>
			</extensions>
		</trkpt>
		<trkpt lat=""47.010214"" lon=""-1.583470"">
			<ele>19.70</ele>
			<time>2018-07-30T14:23:57.60Z</time>
			<sat>12</sat>
			<hdop>0.6</hdop>
			<extensions>
				<gte:gps speed=""26.2"" azimuth=""299.3""/>
			</extensions>
		</trkpt>
		<trkpt lat=""47.010221"" lon=""-1.583488"">
			<ele>19.70</ele>
			<time>2018-07-30T14:23:57.80Z</time>
			<sat>12</sat>
			<hdop>0.6</hdop>
			<extensions>
				<gte:gps speed=""27.2"" azimuth=""299.9""/>
			</extensions>
		</trkpt>
}}}

Josm 13367: Gpx -> Data layer -> Gpx

{{{
#!xml
<?xml version='1.0' encoding='UTF-8'?>
<gpx version=""1.1"" creator=""JOSM GPX export"" xmlns=""http://www.topografix.com/GPX/1/1""
    xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" 
    xsi:schemaLocation=""http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"">
  <metadata>
    <bounds minlat=""47.010208"" minlon=""-1.585317"" maxlat=""47.011661"" maxlon=""-1.583453""/>
  </metadata>
  <trk>
    <trkseg>
      <trkpt lat=""47.010208"" lon=""-1.583453"">
        <time>2018-07-30T14:23:57Z</time>
      </trkpt>
      <trkpt lat=""47.010214"" lon=""-1.58347"">
        <time>2018-07-30T14:23:57Z</time>
      </trkpt>
      <trkpt lat=""47.010221"" lon=""-1.583488"">
        <time>2018-07-30T14:23:57Z</time>
      </trkpt>
      <trkpt lat=""47.010228"" lon=""-1.583506"">
        <time>2018-07-30T14:23:58Z</time>
      </trkpt>
      <trkpt lat=""47.010236"" lon=""-1.583524"">
        <time>2018-07-30T14:23:58Z</time>
      </trkpt>
      <trkpt lat=""47.010243"" lon=""-1.583543"">
        <time>2018-07-30T14:23:58Z</time>
      </trkpt>
      <trkpt lat=""47.010252"" lon=""-1.583563"">
        <time>2018-07-30T14:23:58Z</time>
      </trkpt>
}}}
Josm 14067: Gpx -> Data layer -> Gpx

{{{
#!xml
<?xml version='1.0' encoding='UTF-8'?>
<gpx version=""1.1"" creator=""JOSM GPX export"" xmlns=""http://www.topografix.com/GPX/1/1""
    xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" 
    xsi:schemaLocation=""http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"">
  <metadata>
    <bounds minlat=""47.010208"" minlon=""-1.585317"" maxlat=""47.011661"" maxlon=""-1.583453""/>
  </metadata>
  <wpt lat=""47.011661"" lon=""-1.585317"">
    <ele>16.90</ele>
  </wpt>
  <wpt lat=""47.011641"" lon=""-1.585312"">
    <ele>16.90</ele>
  </wpt>
  <wpt lat=""47.011621"" lon=""-1.585308"">
    <ele>16.80</ele>
  </wpt>
  <wpt lat=""47.011602"" lon=""-1.585303"">
    <ele>16.80</ele>
  </wpt>
  <wpt lat=""47.011583"" lon=""-1.585299"">
    <ele>16.80</ele>
  </wpt>
}}}


{{{
Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-07-30 21:57:20 +0200 (Mon, 30 Jul 2018)
Revision:14067
Build-Date:2018-07-31 01:53:35
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (14067 en) Windows 10 64-Bit
OS Build number: Windows 10 Pro 1803 (17134)
Memory Usage: 1575 MB / 6144 MB (741 MB allocated, but free)
Java version: 10.0.2+13, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1200
Maximum Screen Size: 1920x1200
Dataset consistency test: No problems found


}}}
"	defect	closed	normal		Core	latest	duplicate	template_report;gpx;nmea;data layer