USGS Urban133 Ortho Imagery via WMS

[Thomas Chesky]

Tyler,

I have 3 png files with different output projection (500Kb each, I am not sure if it's OK to post such big files on the list, confirm, and I will send them)

All are slightly reprojected (that is: something happening with the image when requesting other projection) but only 4326 produces correct overlays (the default and only USGS WMS projection).
layers: USGS ortho, parcel, FEMA hazards

I am testing via the cgi interface with the following parameters:

1.,
/cgi-bin/mapserv?mode=map&map=/usr/local/mapapp/map.map&layers=SanFrancisco01%20Q3Flood%20san_mateo_cou_ca_apn&mapext=-122.226813776775+37.4764381661621+-122.213167520107+37.4835588561656&mapsize=600+400&map_projection=init%3Depsg:2227

2.,
/cgi-bin/mapserv?mode=map&map=/usr/local/mapapp/map.map&layers=SanFrancisco01%20Q3Flood%20san_mateo_cou_ca_apn&mapext=-122.226813776775+37.4764381661621+-122.213167520107+37.4835588561656&mapsize=600+400&map_projection=init%3Depsg:4326

3.,
/cgi-bin/mapserv?mode=map&map=/usr/local/mapapp/map.map&layers=SanFrancisco01%20Q3Flood%20san_mateo_cou_ca_apn&mapext=-122.226813776775+37.4764381661621+-122.213167520107+37.4835588561656&mapsize=600+400&map_projection=init%3Depsg:26910

I removed units and projection from the map file as you suggested

# UNITS DD
# PROJECTION
# "init=epsg:26910"
# END

Same problem. Is it possible that reprojection using epsg on raster layer causes the problem? I doubt, but everything else looks fine otherwise and the parcels are reprojected correctly, but the raster WMS layer is not.

Any idea?

Thanks




Tyler Mitchell <tylermitchell at shaw.ca> wrote:
> Is there any special thing to know re: reprojecting raster layers?

Shouldn't be!

>
> UNITS DD
>
> PROJECTION
> "init=epsg:26910"
> END

Really? Decimal Degrees (DD) for UTM Zone 10 projection that is in metres?


Tyler






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