GPS/GIS Mapping of trees

[Khriss]

That Acxiscape looks a good price though. K

[Mark J]

On 19/03/2022 at 18:02, Khriss said:

That Acxiscape looks a good price though. K

It works for me. 

After four years of using it I'm beginning to think that I should have fronted the money for the Lifetime License.

Edited March 21, 2022 by Mark J
Monies.

[Mark J]

16 hours ago, Mick Dempsey said:

Wouldn’t anything that uses mapping need internet connectivity?

Apart from a paper map I mean.

I’m no expert, not even close, but how else?

You can get GPS data from a phone when there's no 'signal', it isn't as accurate as when there is a phone tower nearby though. 
You can download OS maps which are georeferenced. When you convert the map to a usable format (dxf/dwg), the georeferencing remains intact, which allows you to plot onto them using GPS, without internet connectivity. 

 

Edited March 20, 2022 by Mark J

[openspaceman]

14 minutes ago, Mark J said:

You can get GPS data from a phone when there's no 'signal', it isn't as accurate as when there is a phone tower nearby though. 
You can download OS maps which are georeferenced. When you convert the map to a usable format (dxf/dwg), the georeferencing remains intact, which allows you to plot onto them using GPS, without internet connectivity. 

 

For accuracy I would take a photo of the tree (tag) close up and carry a garmin GPS which I took a photo of the time on its screen at start. At the time my phone or camera had no GPS and the garmin is more accurate anyway. Another advantage of the garmin is it plots my position every second.

 

These photos synchronised with a free bit of software would then load onto google earth or could be plotted onto an OS base map.

 

It was an inventory and simple triage collation rather than a full inspection so the client only required a spreadsheet and the photos to refer to.

[Mark J]

3 minutes ago, openspaceman said:

For accuracy I would take a photo of the tree (tag) close up and carry a garmin GPS which I took a photo of the time on its screen at start. At the time my phone or camera had no GPS and the garmin is more accurate anyway. Another advantage of the garmin is it plots my position every second.

 

These photos synchronised with a free bit of software would then load onto google earth or could be plotted onto an OS base map.

 

It was an inventory and simple triage collation rather than a full inspection so the client only required a spreadsheet and the photos to refer to.

I think you've mentioned this before, because not long afterwards I adopted a very similar practice using the GPS tracking on my surveying camera, so thank you for that, and for putting me onto "irfanview" too.