[Mapserver-users] Mixed Units (DD & Meters)
mcortez at fullcoll.edu
Tue May 18 16:45:24 EDT 2004
> I'd like to keep the output in DD, but have some select
> layers sources be in Meters. Is this possible? Is there an
> example for setting up this type of PROJECTION or doing this
> conversion on the fly?
I know, replying to my own message... Bad, Bad...
I've gotten closer -- digging through the archives, and taking a look at
the map recipes (thanks Hal) I've "cobbled together" something that
EXTENT -8000000 300000 5000000 1500000
"proj=lcc" "lat_1=32" "lat_2=44" "lat_0=38" "lon_0=-100" "x_0=0"
"y_0=0" "ellps=WGS84" "datum=WGS84"
PROJECTION # Got this from recipe when I noticed it was using the
same source data.
"lat_0=142" # Guessed this
For the lat_0 on my aea layer, I guessed that value.
I added the layer without it, and looked at the results, and my
California data was down next to Central America. So I added a lat_0
keyword, and played with the value until I got it overlay on top of the
California state projected by my other layer. I doubt I've done this
correctly. So any suggestions on the correct way of determining the
projection info for my 2nd layer?
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