[Proj] cs2cs and PDC Mercator

[John Cartwright]

Hello All,

I'm trying to convert geographic coords (EPSG 4326) to PDC Mercator
(EPSG 3349) and was using the command line listed below.  I was
surprised to find that the PDC mercator X values were the same for
-179.999999 or +179.999999.  Can someone please explain what I'm doing
wrong?

Thanks!

--john


cs2cs +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs  +to +proj=merc
+lon_0=-150 +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m
+no_defs <<EOF
> -179.999999 -89.999999
> 179.999999 -89.999999
> 179.999999 89.999999
> -179.999999 89.999999
EOF

-3339584.61   -118315559.69 0.00
-3339584.84     -118315559.69 0.00
-3339584.84     118315559.73 0.00
-3339584.61     118315559.73 0.00