[mapserver-users] lcc projection doesnt output map

Stephen Woodbridge woodbri at swoodbridge.com
Sun Mar 17 17:39:50 PDT 2013


Mark,

You need to change

UNITS DD
to
UNITS METERS

and you need to change

EXTENT -143 39 -50 85
to
EXTENT ...

where ... is the longlat coordinates above converted to their equivalent 
values in LCC

On linux you might from cs2cs command helpful, you might also find some 
online projection conversion utilities.

-Steve

On 3/17/2013 8:26 PM, Mark Mirrlees wrote:
> Hi all,
>
> when I try to edit my projection to a LCC from a UTM in my mapfile my
> map fails to show up when I launch my mapserver link.
>
> Here is the first part of the mapfile...
>
> BEFORE:
>
> MAP
>    NAME "QGIS-MAP"
>    # Map image size
>    SIZE 500 500
>    UNITS meters
>    EXTENT -143 39 -50 85
>    FONTSET "/wwwroot/fonts/fontset.txt"
>    SYMBOLSET "/wwwroot/symbols/symbols.sty"
>      PROJECTION
>      'proj=longlat'
>      'datum=WGS84'
>      'no_defs'
>    END
>
> AFTER:
>
> MAP
>    NAME "QGIS-MAP"
>    # Map image size
>    SIZE 500 500
>    UNITS dd
>    EXTENT -143 39 -50 85
>    FONTSET "/wwwroot/fonts/fontset.txt"
>    SYMBOLSET "/wwwroot/symbols/symbols.sty"
>    PROJECTION
>   "proj=lcc"
>   "ellps=GRS80"
>   "lat_0=49"
>   "lon_0=-95"
>   "lat_1=49"
>   "lat_2=77"
>   "datum=NAD83"
>   "units=m"
>   "no_defs"
>    END
>
> I'm not sure how to fix this...any suggestions? As i'm still fairly new
> at this.
> Mark
>
>
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>



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