[mapserver-users] Poor quality in raster images

[Heraldo Rodríguez]

Hi everyone,

                   This is the first time I make use of raster layers. 

                    Everything works fine but the raster layer is rendered very poorly ( I mean , I visualise the image with an external program at the same scale  and the image looks smooth , but with mapserver I only see some dots  here an there )

                    The image is a geotiff image ( black and white)

                    I tried using different processing directives PROCESSING "RESAMPLE=BILINEAR"   PROCESSING "DITHER=YES"   PROCESSING "SCALE=AUTO" without any luck.

                    These are some fragments of my mapfile

 

            OUTPUTFORMAT

                        NAME AGG

                        DRIVER AGG/PNG

                        IMAGEMODE RGB

                        extension "png"

                        mimetype "image/png"

                        FORMATOPTION "INTERLACE=OFF"

            END

 

            LAYER

              PROCESSING "RESAMPLE=BILINEAR"

              PROCESSING "DITHER=YES"

              PROCESSING "SCALE=AUTO"

              NAME "test"

              DATA "bsas1867norte.tif"

              TYPE RASTER

              STATUS default

            END

 

 

         I  am using  mapserver 5.4.1 tilecache and postgis 

 

Mapserver compilation options :

 

./configure --with-postgis=/usr/bin/pg_config --enable-debug --with-threads --without-pdf --without-tiff --with-gdal=/usr/bin/gdal-config --with-ogr=/usr/bin/gdal-config --with-freetype=/usr/bin --with-png=/usr/bin --with-libiconv=/usr/local/bin/iconv --without-xpm --with-zlib=/usr --without-eppl --with-agg=/usr/local/src/agg-2.4 --without-mygis --with-gd=/usr --with-curl-config=/usr/bin/curl-config --with-wms --with-wfs --with-proj=/usr

 

  What can I do to make raster layers look better ( performance is not an issue since I am using tilecache ) 

       Thanks in advance. Regards.

 

 Lic. Heraldo G. Rodriguez

  hrodriguez at siscat.com.ar <mailto:hrodriguez at siscat.com.ar> 

  TEL: 54-11-4326-4002 int 255

  Dpto. Desarrollo

  Sistemas Catastrales S.A

 

 

________________________________

De: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] En nombre de YOUNESS ELMEDRAOUI
Enviado el: lunes, 10 de agosto de 2009 11:13
Para: mapserver-users at lists.osgeo.org
Asunto: [mapserver-users] tooltip openlayers /wms

 

Hi,


plz, how can i create a tooltips with openlayers / wms layers?

 

thnks

best regards,
Youness ELMEDRAOUI

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