[mapserver-users] LAYER example for kernerdensity wanted

[Rahkonen Jukka (Tike)]

Hi,

I believe that this kind of lines appear into the Apache error log when I try to get heatmap to render:

[Sun Sep 28 19:37:18 2014] [error] [client 127.0.0.1] GDAL: GDALOpen(MEM:::DATAPOINTER=03359B30,PIXELS=459,LINES=346,BANDS=1,DATATYPE=Byte,PIXELOFFSET=1,LINEOFFSET=459, this=03355E60) succeeds as MEM.\r
[Sun Sep 28 19:37:19 2014] [error] [client 127.0.0.1] Premature end of script headers: mapserv.exe
[Sun Sep 28 19:37:19 2014] [error] [client 127.0.0.1] GDAL: GDALOpen(MEM:::DATAPOINTER=00FB9B30,PIXELS=459,LINES=346,BANDS=1,DATATYPE=Byte,PIXELOFFSET=1,LINEOFFSET=459, this=00FB5E60) succeeds as MEM.\r

-Jukka-



Rahkonen, Jukka wrote:
> 
> Hi,
> 
> I am running MapServer version 6.5-dev on Windows and I suppose it has the
> support for kerneldensity layers. Could someone show the LAYER part that
> works with the Natural Earth populated places dataset
> http://www.naturalearthdata.com/http//www.naturalearthdata.com/downloa
> d/10m/cultural/ne_10m_populated_places.zip? I have created .qix index but not
> touched the data in other ways.
> 
> I have indeed managed to get some coloured stripes out at some scales but
> what I mostly get is Internal server error (http 500). MS_ERRORFILE does not
> show any errors and Apache error log is probably recording just this:
> [Sat Sep 27 21:57:27 2014] [error] [client 127.0.0.1] Premature end of script
> headers: mapserv.exe
> 
> My current LAYER (or layers, one for data and one for kerneldensity):
> 
> LAYER
> NAME "points"
> DATA "c:\data\ne\ne_10m_populated_places"
> TYPE POINT
>     STATUS ON
>     PROJECTION
>         "init=epsg:4326"
>     END
>     debug 5
>     CLASS
>        STYLE
>                    SIZE 5
>                    SYMBOL "circle"
>                    COLOR 200 200 200
>                    OUTLINECOLOR 0 0 0
>         END
>     END
> END
> layer
>     name "heatmap"
>     type raster
>     connectiontype kerneldensity
>     connection "points"
>     status on
>     debug 5
>     #processing "RANGE_COLORSPACE=HSL"
>     processing "KERNELDENSITY_RADIUS=20"
>     processing "KERNELDENSITY_ATTRIBUTE=RANK_MIN"
>     #processing "KERNELDENSITY_COMPUTE_BORDERS=ON"
>     processing "KERNELDENSITY_NORMALIZATION=AUTO"
>     offsite 0 0 0
>     class
>       style
>         COLORRANGE  "#0000ff00"  "#0000ffff"
>         DATARANGE 0 32
>       end
>       style
>         COLORRANGE  "#0000ffff"  "#ff0000ff"
>         DATARANGE 32 255
>       end
>     end
>   end
> 
> What I have tried so far has been to comment out this and that but result seems
> to be always the same.
> 
> -Jukka Rahkonen-
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