[mapserver-users] opacity and outputformat

[Marc-André Trottier]

url = "blablabl/cgi-wms/mapserv?map=patate&randomnumber" + mt_rand() + "&";


layer->set("connection",url)

and everything is good



2011/5/19 Marc-André Trottier <trottier.marcandre at gmail.com>

> i'm using MapScript to create un mapObj.
> finally a draw the image with Map->draw();
>
> but the OPACITY is not good. Just one OPACITY, of my two layers, is set to
> all image
>
> i got this for my Outputformat :
>
>   OUTPUTFORMAT
>     NAME "aggpng24"
>     MIMETYPE "image/png; mode=24bit"
>     DRIVER "AGG/PNG"
>     EXTENSION "png"
>     IMAGEMODE "RGBA"
>     TRANSPARENT TRUE
>   END
>
> i think it's good.
>
> if the address is not the same in the parameter CONNECTION
> it's all good.
>
> can i add a random number in my CONNECTION ?
> with the mapscript
>
> Marc-André Trottier
>
>
>
>
> 2011/5/12 thomas bonfort <thomas.bonfort at gmail.com>
> Opacity is set as a single integer between 0 and 100 on the layer level.
> There are no limitations on setting it on multiple layers, but in that
> case the opacity adds up, so if you have two layers with opacity 50,
> the final opacity of the image ends up being 75.
>
> If your final images end up with no opacity, this could be because
> your are also including a layer with full opacity, or because you are
> using a format which does not support an alpha channel (i.e. jpeg)
>
> regards,
> thomas
>
> On Mon, May 9, 2011 at 19:18, Marc-André Trottier
> <trottier.marcandre at gmail.com> wrote:
> > hi!
> > how can i get a output with opacity on 2 or more layers.
> > with only 1 layer it's working fine but not with 2 or more.
> >
> > How should be written OPACITY when using IMAGEMODE RGBA ? (ALPHA)
> > i tried something like OPACITY 22,22,22,22 but looks bad
> >
> > in all my tests, all i got was my 2 layers with full opacity (100) ...
> >
> > here is my mapfile :
> >
> >  MAP
> >   EXTENT -8146324.306063 5632144.09953312 -8137075.425642
> 5638229.88815488
> >   FONTSET "fonts"
> >   IMAGECOLOR 255 255 255
> >   IMAGETYPE AGGA
> >   SIZE 732 482
> >   STATUS ON
> >   UNITS METERS
> >   NAME "MS"
> >
> >  OUTPUTFORMAT
> >      NAME 'AGGA'
> >      DRIVER AGG/PNG
> >      IMAGEMODE RGBA
> >      TRANSPARENT TRUE
> > END
> >
> >   PROJECTION
> >     "init=epsg:900913"
> >   END
> >   LEGEND
> >     IMAGECOLOR 255 255 255
> >     KEYSIZE 20 10
> >     KEYSPACING 5 5
> >     LABEL
> >       ANGLE 0.000000
> >       ANTIALIAS TRUE
> >       FONT "arial"
> >       MAXSIZE 256
> >       MINSIZE 4
> >       SIZE 10
> >       TYPE TRUETYPE
> >       BUFFER 0
> >       COLOR 255 255 255
> >       FORCE FALSE
> >       MINDISTANCE -1
> >       MINFEATURESIZE -1
> >       OFFSET 0 0
> >       PARTIALS TRUE
> >     END
> >     OUTLINECOLOR 0 0 0
> >     POSITION LR
> >     POSTLABELCACHE TRUE
> >     STATUS EMBED
> >     TRANSPARENT FALSE
> >   END
> >
> >   QUERYMAP
> >     COLOR 255 255 0
> >     SIZE -1 -1
> >     STATUS OFF
> >     STYLE HILITE
> >   END
> >
> >   SCALEBAR
> >     ALIGN CENTER
> >     COLOR 0 0 0
> >     IMAGECOLOR 255 255 255
> >     INTERVALS 4
> >     LABEL
> >       SIZE MEDIUM
> >       TYPE BITMAP
> >       BUFFER 0
> >       COLOR 0 0 0
> >       FORCE FALSE
> >       MINDISTANCE -1
> >       MINFEATURESIZE -1
> >       OFFSET 0 0
> >       PARTIALS TRUE
> >       POSITION CR
> >     END
> >     OUTLINECOLOR 0 0 0
> >     POSITION LL
> >     SIZE 200 3
> >     STATUS EMBED
> >     STYLE 0
> >     UNITS METERS
> >   END
> >
> >   WEB
> >     IMAGEPATH "path"
> >     IMAGEURL ""
> >     QUERYFORMAT text/html
> >     LEGENDFORMAT text/html
> >     BROWSEFORMAT text/html
> >   END
> >
> >   LAYER
> >     CONNECTION "PATATE3"
> >     CONNECTIONTYPE WMS
> >     DEBUG 5
> >     METADATA
> >       "wms_srs"    "EPSG:900913"
> >       "wms_name"    "PATATE3"
> >       "wms_format"    "image/png"
> >       "wms_server_version"    "1.1.1"
> >     END
> >     NAME "Carte"
> >     PROCESSING "CLOSE_CONNECTION=NORMAL"
> >     PROJECTION
> >       "init=epsg:900913"
> >     END
> >     STATUS ON
> >     TRANSFORM FALSE
> >     TYPE RASTER
> >     UNITS METERS
> >   END
> >
> >   LAYER
> >     CONNECTION "PATATE2"
> >     CONNECTIONTYPE WMS
> >     DEBUG 5
> >     METADATA
> >       "wms_srs"    "EPSG:900913"
> >       "opacity"    "100"
> >       "wms_name"    "PATATE2"
> >       "wms_format"    "image/png"
> >       "wms_server_version"    "1.1.1"
> >     END
> >     NAME "PATATE2"
> >     PROCESSING "CLOSE_CONNECTION=NORMAL"
> >     PROJECTION
> >       "init=epsg:900913"
> >     END
> >     STATUS ON
> >     TRANSFORM FALSE
> >     TYPE RASTER
> >     UNITS METERS
> >   END
> >
> >   LAYER
> >     CONNECTION "PATATE"
> >     CONNECTIONTYPE WMS
> >     DEBUG 5
> >     METADATA
> >       "wms_srs"    "EPSG:900913"
> >       "opacity"    "40"
> >       "wms_name"    "PATATE"
> >       "wms_format"    "image/png"
> >       "wms_server_version"    "1.1.1"
> >     END
> >     NAME "PATATE"
> >     PROJECTION
> >       "init=epsg:900913"
> >     END
> >     STATUS ON
> >     OPACITY 40
> >     TYPE RASTER
> >     UNITS METERS
> >   END
> >
> > END
> >
> >
> > ______________________________
>>
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