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I want to reconstruct the historical movements of a military regiment. I am looking for a publisher, in the end I wish a gpx file. A priori there is full, yet I find none that corresponds: I need to display a map to determine where to put my points (with dates and hour-> timestamp) and sometimes some waypoints (for battle etc. ...).

Gpx files seems very appropriate, but what editor use ? I tried garmin basecamp, but I can't edit timestamp. I looked josm, but I do not feel that I can edit the tracks without losing the timestamp when I export ... well, I do not find (or I search very badly: /) an editor allows to create manually (visually) plots, edit timestamp and waypoints.

Can anyone guide me?

I want a editor to display a map on the screen and click at specific positions to create a point and give this point a timestamp and export to GPX file. In the end, I use the gpx file with osm and D3, but it's not my question. I not use a gps device, I don't want to import gpx file in a editor because I want to create track and waypoints myself from archive military documents.

I just want to transcript this kind of military log (dates, places and events) to a map. It's very long to do, so I prefer to have a GUI to input each event at once.

Exemple of a log (sorry it's in french).

  • It is not clear in what format you have your data. Or is it that you want to create data (points with timestamps)? – Techie_Gus Sep 6 '15 at 19:23
  • GPX is just an XML (topografix.com/GPX/1/1/gpx.xsd) You could edit it with an XML viewer or Text viewer... one key at a time. Do you have any coding ability? C# has a few objects that would make this task easy. – Michael Stimson Sep 6 '15 at 23:47
  • If I understood your question correctly, you want to display a map on the screen and click at specific positions to create a point and give this point a timestamp and eventually export to GPX. Confirm that this is your need and then specify in which format is this map in. – Techie_Gus Sep 7 '15 at 2:42
  • yes, that's exactly it! Sorry if I'm not very clear. In the end I want to export a GPX file (with track and waypoint. I will use with OSM and d3.js, but that's not my question;)). – David Sep 7 '15 at 9:34
  • QGIS can do everything that you are asking and its free – TsvGis Sep 7 '15 at 10:32
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You could use QGIS and use the GPS plugin. The plugin allow you to import the gpx file, edit and save the changes. You can also add imagery into the background by using the Open Layers plugin.

To import and edit:

  • Open QGIS
  • Go Vector>GPS>GPS Tools enter image description here
  • When the GPS Tools window opens, browse to the gpx file you want to add and hit ok. enter image description here
  • When the GPX is added to the layers window, right click on the the layer you want to edit and select "Open Attribute Table"
  • With the Attribute Table open, click the pencil icon to start editing enter image description here enter image description here
  • When editing, change the required items. In this example, I just changed the names. enter image description here
  • When finished editing, hit the save button and then the pencil button to stop editing. enter image description here
  • The changes should now be reflected in the original gpx file enter image description here

After compiling this answer, I realised that this method won't allow you to see the time/date stamp. There is answer located here that explains how to view the time/date stamp in QGIS. However, this method won't allow you to edit the file unless you save it as something else. In my test I saved the gpx file as a shapefile (right mouse click on gpx and save as ESRI Shapefile), changed the time/date in the attribute file and then re-saved it as a gpx.

  • Thank you for your very detail answer ! Indeed, this is not exactly what i need. I have completed my question (see the edit). I will read the link earlier and will comment :). Thank you again. – David Sep 7 '15 at 9:46
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I think GPSbabel can do that. I remember that we can specify à time offset.

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  • Thanks for your answer but, if i'am not wrong, gpsbabel doesn't have a gui for place points. So It's hard to me to first place points on a soft (like basecamp) and then, edit timestamp with another software like gpsbabel. Indeed, research on movements army is about 4 years with thousands places so it's not very easy when points are place while reading archive documents...not sure if my comment is clear ;). But in synthese, I like to place points and tag the date at the same moment. – David Sep 6 '15 at 19:34

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