[mapserver-users] MapServer CGI 5.6.6 and MapServer CGI 6.0.2 image quality varies.

[Chandrakant Dinni]

Hi,

The attached images are from same map files (bluemarble imagery from
http://visibleearth.nasa.gov/view.php?id=57752) .

1)Improper_Mapserver5.6.6.JPG the colours are not smooth,the picture
is pixellated in Mapserver 5.6.6
2) Proper_Mapserver6.0.2.JPG  the colours are smooth in Mapserver 6.0.2.

How can I make the image show properly in 5.6.6, what makes the difference ?
Tried using untiled images but the result is the same in 5.6.6.There
could me some mapserver setting or preprocessing to be done on image
files.

Right now I am doing only this to get the final images.
gdal_translate -co TILED=YES land_shallow_topo_8192.tif
land_shallow_topo_8192_TILED.tif
gdaladdo --config GDAL_CACHEMAX 1500 -r average
land_shallow_topo_8192_TILED.tif 4 8 16 32 64 128 256

Also any know any better\more detailed sources for public domain atlas
images,I am also using http://www.naturalearthdata.com/ as a source of
data.
Thanks in advance....I am planning to use Mapserver 5.6.6 because the
Fusion JavaScript Client is compatible with 5.6.6.

I am using ms4w for testing ,though final server will be on linux.
Below is the map file.

MAP
    NAME "BlueMarble"
PROJECTION
# "init=EPSG:4326"
"proj=latlong"
END
    STATUS ON
    SIZE 10800 5400
    EXTENT -180 -90 180 90

    UNITS DD
    SHAPEPATH "../NaturalEarth"
# don't need background colour
    # IMAGECOLOR 128 128 255

    #
    # Start of web interface definition
    #
    WEB
        IMAGEPATH "/ms4w/tmp/ms_tmp/"
        IMAGEURL "/ms_tmp/"
METADATA
"wms_title"           "WMS Server"
"wms_onlineresource"
"http://172.16.1.126/cgi-bin/mapserv.exe?map=/ms4w/data/mapfiles/bluemarble.map&"
"wms_extent"  "-180 -90 180 90"
"wms_enable_request"  "*"
END
    END # WEB

LAYER
     NAME "NasaBlueMarbleOffline"
     DATA "./bluemarble/land_shallow_topo_8192_TILED.tif"
STATUS ON
     TYPE RASTER
     PROJECTION
       "proj=latlong"
     END

     METADATA
"wms_srs"             "EPSG:4269 EPSG:4326"
       "wms_title" "Nasa Blue Marble Offline"
     END
END
LAYER
NAME "world_land"
DATA "./50m_physical/50m_land.shp"
STATUS OFF
TYPE POLYGON
OPACITY 100
CLASS
NAME 'Land Outline'
STYLE
OUTLINECOLOR 184  138  0
END # STYLE
END # CLASS
METADATA
"wms_title" "Land Outline"
END
END # LAYER
LAYER
NAME "world_freshwater_bodies"
DATA "./50m_physical/50m_rivers_lake_centerlines.shp"
STATUS OFF
TYPE LINE
OPACITY 100
CLASS
NAME 'Fresh Water Bodies'
STYLE
OUTLINECOLOR 51  102  255
END # STYLE
END # CLASS
METADATA
"wms_srs"             "EPSG:4269 EPSG:4326"
"wms_title" "Freshwater Bodies Of The World"
END
END # LAYER
LAYER
NAME "world_lakes"
DATA "./50m_physical/50m_lakes.shp"
STATUS OFF
TYPE POLYGON
OPACITY 100
CLASS
NAME 'Lakes'
STYLE
COLOR 0 61 245
END # STYLE
END # CLASS
METADATA
"wms_srs"             "EPSG:4269 EPSG:4326"
"wms_title" "Lakes Of The World"
END
END # LAYER
LAYER
NAME "geographic_points"
DATA "./50m_physical/50m_geography_regions_points.shp"
STATUS OFF
TYPE POINT
OPACITY 50
CLASS
LABEL
COLOR  0 0 0
OUTLINECOLOR 255 255 255
FONT "sans"
TYPE truetype
SIZE 6
POSITION AUTO
PARTIALS FALSE
END
END # CLASS
METADATA
"wms_srs"             "EPSG:4269 EPSG:4326"
"wms_title" "Major Geographic Points"
END
END # LAYER
LAYER
NAME "countries"
DATA "./country2007/cntry07_econ.shp"
STATUS OFF
TYPE POLYGON
CLASS
NAME 'The Countries Of The World'
STYLE
OUTLINECOLOR 0 0 0
END # STYLE
END # CLASS
METADATA
"wms_srs"             "EPSG:4269 EPSG:4326"
"wms_title" "The Countries Of The World"
END
END # LAYER
LAYER
NAME "state_lines_usa"
DATA "./50m_cultural/ne_50m_admin_1_states_provinces_shp.shp"
STATUS OFF
TYPE POLYGON
CLASS
NAME 'States Lines USA'
STYLE
OUTLINECOLOR 0 0 0
END # STYLE
END # CLASS
METADATA
"wms_title" "States Lines USA"
END
END # LAYER
LAYER
NAME "urban_areas"
DATA "./50m_cultural/ne_50m_urban_areas.shp"
STATUS OFF
TYPE POLYGON
CLASS
NAME 'Urban Areas'
STYLE
OUTLINECOLOR 0 0 0
END # STYLE
END # CLASS
METADATA
"wms_title" "Urban Areas"
END
END # LAYER
#LAYER
# NAME "populated_places"
# DATA "./50m_cultural/ne_50m_populated_places.shp"
# STATUS OFF
# TYPE POINT
#
#
# METADATA
# "wms_title" "Populated Places"
# END
#
#END # LAYER


END # MAP

Regards,
Dinni.
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