Importing date/time attribute from GPX file
RatherBeInSierras
Global Mapper User
Hi,
I have track data from a Garmin GPS (GPX) that I want to edit in GM. Specifically, the positions of some of the track points are wrong as I was deep in a canyon. I want to move the points to the proper location and then ultimately georeference my photos with the edited tracklog.
When I import the tracklog, GM properly imports the time/date. However, as soon as I use the digitizer tool to move a track point, the time/date stamp is dropped from every track point. If I manually enter a new location value for a track point, then the time/date stamp is preserved. To be feasible, however, I need to be able to drag and drop multiple points at a time onto a map overlay. Dragging and dropping seems to result in loss of the time/date stamp, and without that information I can't georeference my photos.
Is there a solution?
Thanks!
I have track data from a Garmin GPS (GPX) that I want to edit in GM. Specifically, the positions of some of the track points are wrong as I was deep in a canyon. I want to move the points to the proper location and then ultimately georeference my photos with the edited tracklog.
When I import the tracklog, GM properly imports the time/date. However, as soon as I use the digitizer tool to move a track point, the time/date stamp is dropped from every track point. If I manually enter a new location value for a track point, then the time/date stamp is preserved. To be feasible, however, I need to be able to drag and drop multiple points at a time onto a map overlay. Dragging and dropping seems to result in loss of the time/date stamp, and without that information I can't georeference my photos.
Is there a solution?
Thanks!
Comments
-
I'll look into this and issue a patch once I find the problem.
Thanks,
Mike
Global Mapper Support
support@globalmapper.com -
Ok, I think I have this fixed. I have placed a new build at http://www.globalmapper.com/global_mapper9.zip with the change for you to try. Simply download that file and extract the contents into your existing v9.xx installation folder to give it a try.
Let me know if I can be of further assistance.
Thanks,
Mike
Global Mapper Support
support@globalmapper.com -
Hi Mike,
Thanks. It is sort-of fixed. I can now drag and drop trackpoints with preservation of the date/time attribute. This can be successfully saved and imported into my georeference software.
If, however, I delete a track point, then the date/time attribute is dropped from all trackpoints. Thus, moving a point is fine, but deleting still results in loss of every date/time value.
I really appreciate your level of support-- it's fantastic. -
I have updated the vertex deletion to also delete the corresponding time stamp value and not the entire time stamp list. I have placed a new build at http://www.globalmapper.com/global_mapper9.zip with the change for you to try. Simply download that file and extract the contents into your existing v9.xx installation folder to give it a try.
Let me know if I can be of further assistance.
Thanks,
Mike
Global Mapper Support
support@globalmapper.com -
Hi Mike,
If I select the track with the Feature Info Tool and click on the Vertices button, I can highlight a vertex in the box and delete it. This preserves the time/date stamp. If, however, I use the Digitizer Tool to select a vertex, this still results in loss of the time/date stamp from all track points.
Thanks,
John -
John,
I guess I should have tested better. I've got it working for sure this time. I have placed a new build at http://www.globalmapper.com/global_mapper9.zip with the change for you to try. Simply download that file and extract the contents into your existing v9.xx installation folder to give it a try.
Let me know if I can be of further assistance.
Thanks,
Mike
Global Mapper Support
support@globalmapper.com -
Hi Mike,
Perfect! Thanks a lot-- everything seems to work great.
John
Categories
- 12.7K All Categories
- 5.6K Features Discussion
- 342 Downloading Imagery
- 1.3K Elevation Data
- 380 Georeferencing Imagery Discussion
- 628 GM Script Language
- 53 User Scripts
- 113 GPS Features
- 414 Projection Questions
- 819 Raster Data
- 1.3K Vector Data
- 6.6K Support
- 177 Announcement and News
- 908 Bug Report
- 558 SDK
- 1.2K Suggestion Box
- 3.7K Technical Support
- 562 Other Discussion
- 129 GIS Data Sources
- 27 Global Mapper Showcase
- 233 How I use Global Mapper
- 107 Global Mapper Forum Website