displaying layers with two classes

[Flavio Hendry]

Hi Bart

my experiance is that PNG24 creates "huge" files, such as 400k, 
compared to around 70k with JPEG (same image), so I'd suggest to use 
JPEG ...

Mit freundlichem Gruss / Best Regards
Flavio Hendry

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-----Original Message-----
From: Bart van den Eijnden <BEN at SYNCERA-ITSOLUTIONS.NL>
To: MAPSERVER-USERS at LISTS.UMN.EDU
Date: Fri, 5 Aug 2005 08:28:35 +0200
Subject: Re: [UMN_MAPSERVER-USERS] displaying layers with two classes

> Looks like Mapserver is running out of colors in 8 bit mode, can you
> try and use 24 bit mode?
> 
> Change your outputformat to:
> 
>   OUTPUTFORMAT
>     NAME png
>     DRIVER "GD/PNG"
>     MIMETYPE "image/png"
>     EXTENSION PNG
>     IMAGEMODE RGBA
>     TRANSPARENT ON
>   END
> 
> 
> Best regards,
> Bart
> 
> Bart van den Eijnden
> Syncera IT Solutions
> Postbus 270
> 2600 AG  DELFT
> 
> tel.nr.: 015-7512436
> email: BEN at Syncera-ITSolutions.nl
> >>> Travis Kirstine GIS Tech <tkirstine at JDBARNES.COM> 08/04/05 21:31
> PM >>>
> I've been tring to display several layer each with two classes but
> getting
> some unexpected results.  I want to display each polygon layer with
> one
> class having a solid fill at max extent 1:150000 to 1:20000 then use
> another
> class having a outline only at the min scale range 1:20000 to 1:500. 
> Seems
> easy, my layers display correctly at the max scale
> range(max_range.jpg) but
> at the min range the colours are incorrect, the colours are all the
> same as
> the first layer in my mapfile(min_range_bad.jpg).  Also if I turn off
> the
> first layer the colour changes to the correct colour(min_range.jpg). 
> I
> don't know what I'm doing wrong.
> Travis
> 
> #{{{{{[[[[[[((((((<<< APARTMENT NEIGHBOURHOODS>>>)))))))]]]]]]]}}}}}}
> 
>         LAYER
>                 DATA mattamy/apartment_neighbourhoods
>                 NAME "op_niegh"
>                 METADATA
>                         DESCRIPTION "OP Apartment Areas"
>                 END
>                 TYPE POLYGON
>                 STATUS on
>                 MINSCALE 120000
>                 MAXSCALE 501
>                 TEMPLATE void
>                 CLASS
>                 	NAME "app_1"
>                 	MAXSCALE 120000
>                 	MINSCALE 20001
>                     SYMBOL 4
>                     COLOR 255 127 0
>                     SIZE 1
>                 END
>                 CLASS
>                 	NAME "app_2"
>                 	MAXSCALE 20000
>                 	MINSCALE 500
>                 	SYMBOL 4
>                 	OUTLINECOLOR 255 127 0
>                 	SIZE 3
>                 END
> 
>         END
> #{{{{{[[[[[[((((((<<< MIXED USE >>>)))))))]]]]]]]}}}}}}
> 
>         LAYER
>                 DATA mattamy/mixed_use_area
>                 NAME "op_mix"
>                 METADATA
>                         DESCRIPTION "OP Mixed Use Areas"
>                 END
>                 TYPE POLYGON
>                 STATUS on
>                 MINSCALE 120000
>                 MAXSCALE 501
>                 TEMPLATE void
>                 CLASS			#displayes correctly
>                 	NAME "mix_1"
>                 	MAXSCALE 120000
>                 	MINSCALE 20001
>                     SYMBOL 4
>                     COLOR 255 50 50
>                     SIZE 1
>                 END
>                 CLASS			#displayes as orange instead of 
red
>                 	NAME "mix_2"
>                 	MAXSCALE 20000
>                 	MINSCALE 500
>                 	SYMBOL 4
>                 	OUTLINECOLOR 255 50 50
>                 	SIZE 3
>                 END
> 
>         END