Topics

Hi to all,

Back ground info:
I track with a German Shepherd dog for sport - the tracks being from half an hour to 12 hours old over a distance from less than 50 metres to 3 kms  over or through varied terrain.
When the tracks are laid - they are done so with a GPS unit being carried by the tracklayer.
When the dog follows afterwards - the GPS is then carried by the dog.
Since the track is not visible to the human eye (hence dog using nose) - the two tracks may then be compared at a later time for an indication of accuracy of the dog.
I intend to create a picture in picture presentation - where the track is animated whilst viewing a video of the dog running the track. This aids in training and watching the canine behaviour traits as it tracks.

The video part is no problem.
The GPS track animation is!
Topofusion will give a good track presentation BUT using very poor quality aerial photos (for my area - PEI, Canada). I am able to run "Topo" without a background photo but would really like to have a program that allows me to place my 1 metre res. MRSIDs behind the track.
Any ideas? 

Grateful for any response.

GSDtracker

I have both a Garmin GPSmap 60Cx and a Garmin GPSmap 62s.
I wonder if anybody can advise on the following:

I have created a .shp file in QGIS representing a section of woodland. The different areas of trees have been indicated by polygons (only the boundary showing – no infill).
The shape file was transformed using DNR Garmin into a .gpx file.
This file once transferred on to the GPSmap 60Cx unit showed perfectly as a complete representation as in the original .shp file – in its correct geo-position .i.e. ALL the individual polygons upload and show on the screen together. The .gpx file contents are evidently dealt with together as one unit.
The .gpx file once transferred on to the GPSmap 62s unit (perfect transfer) was then looked at. Surprise, the polygons were showing in the archived tracks as individual "units". This resulted in 64 "tracks", one for each polygon unit.
Each unit was able to be shown on the screen – but there was no way to get all together to show the overall plan of the woodland section – only one unit at a time. It was as if the GPS unit was only able to place one track on the screen at a time.
My question is:
How is it the GPSmap 60Cx unit is able to perform and show all at once, whereas the GPSmap 62s could not (or would not)?
I already have an underlying .kml file showing as an overlay (aerial photo) of the area since the woodland is so dense rendering the simple" topo" representation near useless.
Any advice on how to overcome this problem would be welcome?
Thanks,

Peter

Hi Guys,

Quick explanation of my "wish list".
I am presently putting down a track - maybe 500 metres long.
That track is archived as a GPX file.
I then attach the same GPS unit (Garmin GPSMap 62s) tothe harness of my German Shepherd Dog and she then follows the track that I have laid (several hours later).
Her track is also archived as a GPX file.
Both of the files are then used in GIS software and overlaid an aerial photograph.
The accuracy of the dog to track the original track is then possible (with ability to see tracking behaviour).
What I would like to do is using a headcam (or equivalent) - video the dog during her tracking.
Then link the video image to the GPS track.
As the track appears in the software - have the video image run in sync.

Not too much to ask is it?
Any Open source possibilitites out there.

Thanks for any leads,

GSDTracker

I have an annoying problem which I hope is easy to fix - by somebody who knows how!

Wishing to verify how accurate my tracking dog tracks a line that has been laid down - I wish to use the GPSmap 62s.

Having loaded a relevant aerial photo, I proceed from my house (with unit turned off), walk approx 200 metres to the position where I wish to start to lay the track.

Turn on the unit, lay track (500 metres approx) - name track and save on unit.

Here is the issue. A "track line" is showing from the home to the start of the track has been added on to the track. Also, even though I had turned the unit off at the end of the track (after saving it) - the track also shows a direct line from end of track position to the house!

How do I stop these "extra" beginning and end sections being present?

Any advice is most welcome

GSDtracker