[MS4W-Users] Image 24 Bit

Tue Nov 27 05:26:40 EST 2012

Hi Brent,

Thanks for your reply. 

I did that but don't work. When I remove PROCESSING "BANDS=1,2,3" MapServer assumes that is only one band so he retrieve the result of just one. 
I have the class parameters like this:

CLASS
  NAME "near white"
  EXPRESSION ([red] > 25 AND [green] > 25 AND [blue] > 25)
  STYLE
    COLOR 0 0 255
END # end parameter style
END # end parameter class

CLASS
 NAME "white1"
 EXPRESSION ([red] > 200 AND [green] > 200 AND [blue] > 200)
 STYLE
   COLOR 0 255 0
END # end parameter style
END # end parameter class

CLASS
 NAME "white2"
 EXPRESSION ([red] > 200 AND [green] > 200 AND [blue] > 200)
 STYLE
   COLOR 255 0 0
END # end parameter style
END # end parameter class

I already did that with 1 CLASS, 2 and finally 3. None of this works. 

Any suggestion?

Best Regards,
José Santos 

Date: Mon, 26 Nov 2012 09:08:40 -0700
From: bfraser at geoanalytic.com
To: zpsantos1 at hotmail.com
CC: ms4w-users at lists.maptools.org
Subject: Re: [MS4W-Users] Image 24 Bit

    Remove all your PROCESSING directives
      for the layer (see my previous email for details).

      Best Regards,
Brent Fraser
      On 11/26/2012 8:55 AM, José Pedro Santos wrote:

        Dear all,

        I try do change like Jeff propose but I can't succeed..I get
        always the following error: 

        <ServiceExceptionReport
        version="1.1.1"><ServiceException>

        msDrawMap(): Image handling error. Failed to draw layer named
        'fapartest'.

        drawGDAL(): Unable to access file. Attempt to classify 24bit
        image, this is unsupported.

        </ServiceException></ServiceExceptionReport>

        With this link:
http://localhost/cgi-bin/mapserv?map=/var/www/africarastercrt.map&VERSION=1.1.1&Request=GetMap&LAYERS=fapartest&STYLES=&SRS=EPSG:4326&BBOX=-26.0057,-34.8229,60.0032,38.0053&WIDTH=700&HEIGHT=500&FORMAT=image/png;mode=24bit

        But I make some tests and I don't think that is OUTPUTFORMAT
        that have the error. I have on the LAYER section this parameter:
        PROCESSING "BANDS=1,2,3 

        because my image is a RGB image (0 - 255) but when I put only
        one band or two bands the result is the color from the first
        band (like explain on the raster data access) but only the color
        and not the layer. I have the outformat and the class parameter
        like this: 

        OUTPUTFORMAT # Parameter Output

         NAME png24

         DRIVER "AGG/PNG"

         MIMETYPE "image/png;mode=24bit"

         EXTENSION PNG

         IMAGEMODE RGB

        END # end of parameter Output

        CLASS

          NAME "near white"

          EXPRESSION ([red] > 200 AND [green] > 200 AND [blue]
        > 200)

          STYLE

            COLOR 0 0 255

        END # end parameter style

        END # end parameter class

        I working with this since a long time and I don't understand
        why.. Also I have another raster image with just one band and
        works fine...any ideas/suggestions??

        Best Regards and thanks,

        José Santos

        > Date: Fri, 23 Nov 2012 15:43:24 -0400

          > From: jmckenna at gatewaygeomatics.com

          > To: ms4w-users at lists.maptools.org

          > Subject: Re: [MS4W-Users] Image 24 Bit

          > 

          > Jose, see response below from Mike.

          > 

          > (I also regularly use AGG/PNG for 24bit, as that was my
          first response

          > earlier...sorry just trying to debug for Jose..hard for
          me without the

          > data in my hands)

          > 

          > -jeff

          > 

          > 

          > 

          > On 12-11-23 3:37 PM, Smith, Michael ERDC-RDE-CRREL-NH
          wrote:

          > > Jeff,

          > > 

          > > That¹s only for reading imagery.

          > > 

          > > AGG/PNG renderer will certainly do 24 bit output. I
          use (in cgi mode)

          > > map_imagetype=png24,

          > > 

          > > For a wms image request, one should use
          format=image/png;mode=24bit

          > > 

          > > Mike

          > > 

          > 

          > 

          > 

          > -- 

          > Jeff McKenna

          > MapServer Consulting and Training Services

          > http://www.gatewaygeomatics.com/

          > 

          > 

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          > MS4W-Users at lists.maptools.org

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