[Mapserver-users] Performence hit when projecting to lat long?
Omry Yadan
omry at telmap.com
Tue Oct 14 09:25:33 PDT 2003
I tried to display a map in lat/long bounding box using this url:
http://omry/cgi-bin/mapserv40.exe?map=/projects/nat/nat.map&REQUEST=GetMap&V
ERSION=1&bbox=34.9098,32.2125,35.1034,32.3925&width=1000&height=1000
I get the map, but it takes forever (around a minute), in which I see the
memory footprint of the server goes up over 100mb.
I suspect the projection to lat long is the problem.
Additional info:
The data is two tiles in ecw format, total ecw files size if 223mb.
Any insights?
Suggestions?
Thanks.
MAP
NAME "Natanya sample file"
IMAGETYPE JPEG
SIZE 1000 1000
#EXTENT 182400.375 679996.265 210002.835 700002.575
EXTENT 34.9098 32.2125 35.1034 32.3925
WEB
METADATA
"wms_title" "WMS Demo Server"
"wms_onlineresource"
"http://omry/cgi-bin/mapserv?map=nat.map&"
END
END
PROJECTION
proj=latlong
ellps=WGS84
END
LAYER
PROJECTION
"init=epsg:2039"
END
NAME "Natanya arial photo"
STATUS DEFAULT
TILEINDEX "ntn.shp"
TILEITEM "location"
TYPE RASTER
END
END # Map File
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