[talk-ph] Recording POI's with a camera

Ian Haylock haylockid at gmail.com
Tue Mar 15 03:36:53 GMT 2011


Hi,

You probably know this already, but I only discovered it a few weeks ago.

I knew if you had a digital camera with GPS that you could load pictures
from it into JOSM and the would apear at the correct location on the map.

What I did not realize was that you can also use a digital camera even if it
doesn't have a built in GPS receiver. This is because the camera records the
time that the picture was taken.

To make this work you need to start your GPS recording. Then just take
photo's of any POI's that take your fancy.
When you get home load the recorded track into JOSM.
Then right click on the GPS layer (in the layer list), and import the
photo's you took on the trip.
The POI photo's are then imported at the correct location on the map.
If the locations are slightly off, they can be manually adjusted, by
adjusting the time offset.

This could save a lot of note taking on mapping parties, as you could just
take a photo of a road, and later use that to enter details of road type,
surface type, etc.

I find this technique works well riding shotgun in a car when on some
mundane trip  to the supermarket,as it enables me to record subdivision
names, road names, etc without having to stop at each location.

Cheers Ian
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