[MapServer-users] different shapefiles but same render

[Yves Jacolin]

Hello Mathias,

This look rather an Openlayers question: how to create a source and a WMS
layer, and change the setting of the latter to change the LAYERS parameter.

> But loaded together the two layers render the total features of the 2
shapefiles, so in a way the layers are duplicates.
That's look the expected behavior as Jukka said. The two shapefile are
different so they are not duplicated.

Y.

Le mer. 16 juil. 2025 à 08:14, mathias cunault via MapServer-users <
mapserver-users at lists.osgeo.org> a écrit :

> Mapserver 7.6 & OpenLayers 10
>
> My mapfile has to layers from 2 shapefiles :
> WEB
> METADATA
> "wms_title" "WMS-Inrap, natura 2000"
> "wms_onlineresource" "
> http://caviar.inrap.fr/cgi-bin/mapserv.exe?MAP=C:/ms4w/Apache/site/mapfile/fond_iliad_natura.map
> "
> "wms_enable_request" "*" #active les getcapabilities, getmap,
> getfeatureinfo, getfeature
> "wms_srs" "EPSG:3857 EPSG:2154 EPSG:900913"
> "wms_encoding" "UTF8"
> "ows_enable_request" "*"
> END
> END
> LAYER
> NAME "znieff1_metropole"
> TYPE POLYGON
> STATUS DEFAULT
> OPACITY 30
> DATA "./ressources_couches/ZNIEFF/znieff1.shp"
> PROJECTION
> "init=epsg:2154"
> END #fin projection
> #MAXSCALEDENOM 100000
> LABELITEM "etiquette"
> CLASS
> NAME "znieff1" #apparait en legende
> STYLE
> COLOR 255 0 0
> OUTLINECOLOR 255 240 140
> WIDTH 0.5
> END #end STYLE
> LABEL #apparait pour chaque entité sur la carte
> FONT "DejaVu_bold"
> COLOR 255 240 140
> OUTLINECOLOR 0 0 0
> OUTLINEWIDTH 0.5
> POSITION cc
> SIZE 9
> TYPE TRUETYPE
> SHADOWCOLOR 100 100 100
> MAXSCALEDENOM 60000 #apparait à partir de 1/
> MINSCALEDENOM 7000 #apparait jusqu'à 1/
> END #ENd label
> END # end class
> METADATA
> "wms_title" "znieff1"
> "wms_srs" "EPSG:3857 EPSG:2154"
>    END #fin metadata
> END #end layer
>
> #-----debut layer znieff2
> LAYER
> NAME "znieff2_metropole"
> TYPE POLYGON
> STATUS DEFAULT
> OPACITY 30
> DATA "./ressources_couches/ZNIEFF/znieff2.shp"
> PROJECTION
> "init=epsg:2154"
> END #fin projection
> # MAXSCALEDENOM 100000
> LABELITEM "NOM"
> CLASS
> NAME "znieff2" #apparait en legende
> STYLE
> COLOR 255 0 250
> OUTLINECOLOR 255 0 250
> WIDTH 0.5
> END #end STYLE
> LABEL #apparait pour chaque entité sur la carte
> FONT "DejaVu_bold"
> COLOR 255 240 140
> OUTLINECOLOR 0 0 0
> OUTLINEWIDTH 0.5
> POSITION cc
> SIZE 9
> TYPE TRUETYPE
> SHADOWCOLOR 100 100 100
> MAXSCALEDENOM 60000 #apparait à partir de 1/
> MINSCALEDENOM 7000 #apparait jusqu'à 1/
> END #ENd label
> END # end class
> METADATA
> "wms_title" "znieff2"
> "wms_srs" "EPSG:3857 EPSG:2154"
>    END #fin metadata
> End #end layer
>
> In Openlayers, I have defined two sources and two layers, example :
> const sourceWMSznieff1 = new ImageWMS({
>   // serverType: "mapserver",
>   projection: "EPSG:3857",
>   params: {
>     LAYERS: "znieff1_metropole",
>     // _t: Date.now(),
>   },
>   url: "http://
> .../mapserv.exe?MAP=C:/ms4w/Apache/site/mapfile/fond_iliad_natura.map&",
> })
>
> export const coucheWMSznieff1 = new ImageLayer({
>   title: "znieff1",
>   source: sourceWMSznieff1,
> })
>
> Only LAYERS and title are changing for the second source and layer Image.
> In my browser, layers are different, i.e. they display their own datas,
> only when I am loading just one.
> But loaded together the two layers render the total features of the 2
> shapefiles, so in a way the layers are duplicates.
>
> Does it mean I have to create a mapfile for each shapefile ? (it seems
> weird to me and I have many shapefile
>
>
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> MapServer-users at lists.osgeo.org
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>


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