[Talk-us] Grand Junction + TIGER 2010

[Mike N]

On 6/26/2011 10:01 AM, Nick Hocking wrote:
> What would be really usefull is to have OSM in one of the geofabrik
> compare windows and TIGER 2010 in the other. Is there an easy way to
> achieve this?

  Until Ian gets the comparison server up, you can try setting the 
"Inactive" layer color in JOSM to a bright color.    Download an area of 
interest.   Open the .OSM file - it will come in as a new layer.   Then 
Activate the original "Data Layer 1".   Now the original TIGER roads 
will overlay the new TIGER data - partially obscuring it.   New roads 
from a new subdivision will stand out easily, as there will be no 
overlaying road.   Dave Hansen's original example illustrates this:

http://daveh.dev.openstreetmap.org/portland/josm-ping.png

   From the .OSM layer, you can select new roads, then "Merge Selection" 
to put them into the new working map layer.

   In my case, I also created a county-wide extract with Osmosis to be 
able to do a massive overlay comparison without having to download it 
all by API.