<div><br></div>In JOSM...<div><br></div><div>You can zoom to a point where the imagery is latest/good. Right click the background, and untick "Auto zoom imagery/background". Then you can zoom in for more fine detail without the imagery quality changing.</div>
<div><br></div><div>You can set an offset (On the menu, Imagery -> Offset -> New Offset, I think). A dialog appears asking for values, but you can left click & drag the background around. You can still right click & drag to pan around the world. Most mapping trips (at least an hour long) I align the imagery up based on an area where I have a grid of roads (e.g. at least 3 North-South and 3 East-West) to put it in a place where the traces are shown as on the road, I'll also pan to the other side of town and check I've got it aligned okay there.</div>
<div>Maybe some trips (long distance A to B routes?) this isn't so helpful, but you could map car park lanes before you set off to get a trace suitable for aligning.<br><div><br></div>-- <br>Gregory<br><a href="mailto:osm@livingwithdragons.com">osm@livingwithdragons.com</a><br>
<a href="http://www.livingwithdragons.com">http://www.livingwithdragons.com</a><br>
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