[Talk-us] USGS National Map aerial imagery

[Lars Ahlzen]

On 06/05/2010 08:51 PM, Anthony wrote:
> Yes, another program to try is Merkaartor.  You only have to give it the
> server URL (in my case
> http://imsortho.cr.usgs.gov:80/wmsconnector/com.esri.wms.Esrimap/USGS_EDC_Ortho_Florida?)
> and it downloads the capabilities file and presents you with a list of
> layers.

Merkaartor is nice in many ways. It also loads the USGS GeoTIFFs
directly AFAIK. Unfortunately it's not stable on my machine...

> I'm sure it's just me not getting the URL right or something, but I've
> found Merkaartor acceptable so I never bothered.  Biggest problem is
> that WMS is sloooow compared to TMS.

I just had some success with JOSM/WMS. This URL seems to work:

http://imsortho.cr.usgs.gov:80/wmsconnector/com.esri.wms.Esrimap/USGS_EDC_Ortho_Massachusetts?SERVICE=WMS&VERSION=1.1.1&STYLES=&SRS=EPSG:4326&FORMAT=image/png&BGCOLOR=0x000000&TRANSPARENT=true&LAYERS=BostonMA_0.15m_Color_Apr_2008_02&REQUEST=map&

That's the Boston 15cm layer, Area #2.

(example area with coverage:
http://www.openstreetmap.org/?lat=42.17644&lon=-70.95512&zoom=17&layers=B000FTF)

The WMS plugin doesn't seem to download at full resolution, though. It's
not bad, but I wonder if there's a way to convince it to do better...

- Lars

-- 
Lars Ahlzen
lars at ahlzen.com