On 14 Jul 2008, at 07:50, Brandon Martin-Anderson wrote: > Hey Guys, > > I'm trying to grab USGS DEM data from seamless.usgs.gov, which has > worked fine in the past. It's not working for me at all. I'm > curious if anybody could confirm or disconfirm that it's broken: > > http://seamless.usgs.gov/website/seamless/viewer.htm > > Presently, making the GET requests directly to the WMS server used > for the page's map returns errors, complaining about missing params.
Hi, It appears that the requests don't go directly to a WMS server, but through some sort of web services gateway: http://gisdata.usgs.gov/xmlwebservices/(S(oaev4rj0yenlxz55f2c40uek))/ getqueryservice.aspx? Background_Color=255,255,255&Transparent=true&Layer_ID=&BBOX_String=-248 . 95,17.5,7.20000000000002,72&Service_Name=undefined&Output_format=IMAGE&O utput_image=gif&Server_Address=localhost&Image_Width=940&Image_Height=20 0&QueryService_Query=OBJECTID%20in%20() &Renderer_Type=POLYGON&fill_color=200,10,10&fill_type=bdiagonal&Outline_ Color=200,10,10 Maybe this, in turn, makes a call to a WMS? Anyhow One of the params, Layer_ID is empty. Setting Layer_ID to 1 returns a 1x1 blank pixel. Make of that what you will, Cheers, Andrew -- Andrew Larcombe Freelance Geospatial, Database & Web Programming web: http://www.andrewlarcombe.co.uk : http://blog.andrewl.net email: [EMAIL PROTECTED] mob: +44 (7760) 258623 icq: 306690163 _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
