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activityworkshop / GpsPrune

GpsPrune is a map-based application for viewing, editing and converting coordinate data from GPS systems.
GNU General Public License v2.0
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Layer 'aerial' photo orthoplanes for 3D Missing in gpsprune #97

Closed snooppr closed 4 months ago

snooppr commented 4 months ago

I found a video on YouTube from gpsprune about preparing a track in 3D, there was an 'aerial' (4m:32s) layer in the drop-down menu, but on GNU/Linux gpsprune v23 is missing. Was it removed from the software, or was it something experimental?

Here is the layer itself: aerial

activityworkshop commented 4 months ago

It's not "missing", it's just not one of the ones included by default. That one was added separately, using Settings -> Set map background -> Add new. You can add any number of sources you like yourself.

snooppr commented 4 months ago

You can add any number of sources you like yourself.

This is actually not true for several reasons.

As far as I understand, space images under a free license or for personal use are not so easy to obtain. For example, I believe that Google Images will never indicate tiles. In any case, I did not find a single third-party URL for tiles in the instructions.

Here is an example format of a satellite tile (https://ecn.t0.tiles.virtualearth.net/tiles/a030131133313300.jpeg?g=14245&pr=odbl&n=z), which can be easily obtained from the browser through the developer tools (in this example it is the Bing layer from OSM map editor). Here is another example (https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/12/1159/1530) of satellite tiles from another supplier, and of course the url specification is different for everyone and gpsprune does not understand this

But how can this format or another be improved in gpsprune? There is no specification for the url in the gpsprune instructions. And of course this will not work if you specify a simple url in the software.

But I understand the meaning, thank you, I'll close this.

activityworkshop commented 4 months ago

You're right, usually the use of aerial imagery is covered by Terms and Conditions. Using Google's images is technically possible with GpsPrune but forbidden by Google. Bing is similar I think.

The source used in that video is allowed for personal use, but it only covers a limited area, so it makes no sense to add it as a global default source. But if you find a source for your area then as mentioned earlier you can just add it for yourself and store it in your settings.