[mapserver-users] Kernel Map MapServer 7 WMS Server Bug!?

[thomas bonfort]

https://github.com/mapserver/mapserver/issues/5114#issuecomment-119091025


On 7 July 2015 at 17:50, Helton Nogueira Uchoa
<engenheiro.uchoa at gmail.com> wrote:
> Hi list,
>
> I'm trying to make a WMS Server with a kernel (density) map with MapServer
> 7. In same situations (BBOX size, WIDTH and HEIGHT values) the image  is
> returned with no information (white image). Is it a BUG?
>
> Example: image with kernel map
>
> http://localhost/cgi-bin/mapserv7-beta?MAP=%2Fvar%2Fwww%2Fhtml%2Fkernelmap%2Fheat-2.map&LAYERS=heatmap&BBOX=-79.369542201052,-39.684771100526,0,0&WIDTH=800&HEIGHT=400&VERSION=1.1.1&FORMAT=image%2Fpng&SERVICE=WMS&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326
>
> Example: image with white image
>
> http://localhost/cgi-bin/mapserv7-beta?MAP=%2Fvar%2Fwww%2Fhtml%2Fkernelmap%2Fheat-2.map&LAYERS=heatmap&BBOX=-79.369542201052,-39.684771100526,0,0&WIDTH=800&HEIGHT=500&VERSION=1.1.1&FORMAT=image%2Fpng&SERVICE=WMS&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A4326
>
> MAP FILE:
>
>   layer
>     name "heatmap"
>     type raster
>     connectiontype kerneldensity
>     connection "points"
>     status on
>     processing "RANGE_COLORSPACE=%color%"
>     processing "KERNELDENSITY_RADIUS=%radius%"
>     processing "KERNELDENSITY_COMPUTE_BORDERS=%border%"
>     processing "KERNELDENSITY_NORMALIZATION=%norm%"
>     offsite 0 0 0
>     SCALETOKEN
>       NAME "%radius%"
>       VALUES
>         "0" "15"
>         "255000000" "20"
>       END
>     END
>     SCALETOKEN
>       NAME "%border%"
>       VALUES
>         "0" "ON"
>         "255000000" "OFF"
>       END
>     END
>     SCALETOKEN
>       NAME "%norm%"
>       VALUES
>         "0" "AUTO"
>         "255000000" "30"
>       END
>     END
>     SCALETOKEN
>       NAME "%color%"
>       VALUES
>         "0" "HSL"
>         "255000000" "RGB"
>       END
>     END
>     class
>       style
>         COLORRANGE  "#0000ff00"  "#0000ffff"
>         DATARANGE 0 32
>       end
>       style
>         COLORRANGE  "#0000ffff"  "#ff0000ff"
>         DATARANGE 32 255
>       end
>     end
>   end
>
>   LAYER
>     name "points"
>     status on
>     type POINT
>     CONNECTION "user=postgres password=xx dbname=yy host=localhost"
>     CONNECTIONTYPE POSTGIS
>     DATA 'geom FROM atividades USING UNIQUE id_atividade USING SRID=4326'
>     CLASS
>      #MAXSCALE 275000000
>      STYLE
>       SIZE 2
>      END # style
>     END #class
>   END # final do layer
>
>
> Uchoa
> --
> Helton Nogueira UCHOA :: engenheiro.uchoa at gmail.com
> Information Technology and Geospatial Specialist - Project Manager
> OSGeo Charter Member (www.osgeo.org)
> +55 85 8886-3909 (OI - WhatsApp) :: +55 85 9716-7769 (TIM) :: +55 85
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>
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