Marco,
It took some work, but I've pared it down to the attached mapfile and tilecache.cfg. For completeness I've enclosed my OpenLayers configuration and the image file too, just in case either of these are the culprit.
Any thoughts as to where I'm going wrong - or is it a bug in TileCache?
Jez
____________________________________________________________
Jez Walters
Senior Consultant
direct phone: +44 (0)1225 475093
phone: +44 (0)1225 475000
fax: +44 (0)1225 444400
email: jez.walters at ipl.com
IPL Information Processing Limited
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____________________________________________________________
-----Original Message-----
From: Marco Nijdam [mailto:marco at west.nl]
Sent: Monday 9 August 2010 19:56
To: Jez Walters
Cc: tilecache at openlayers.org
Subject: Re: [Tilecache] Symbol image transparency problem
Dear Jez,
Could you please give more information on you setup?
E.g. mapfile, tilecache.cfg file.
Are all layers tiled into one tilecache, or are you overlaying multiple
layers?
Kind regards,
--
-- Marco Nijdam
--
As quoted from Jez Walters:
>
> Hello TileCachers,
>
> I'm not sure if I posted this question correctly last time, so I'm trying
> again! ;-)
>
> I'm displaying UK Ordnance Survey MasterMap vector maps using OpenLayers,
> TileCache and MapServer. The maps display perfectly when I use just
> MapServer (
> http://osgeo-org.1803224.n2.nabble.com/file/n5389483/MapServer.jpg
> MapServer.jpg ), as well as when I also use OpenLayers. However, when I
> add TileCache to the mix, the various symbol images are no longer
> transparent (
> http://osgeo-org.1803224.n2.nabble.com/file/n5389483/TileCache.jpg
> TileCache.jpg ).
>
> I don't have that much experience of TileCache, so any help/explanation
> would be most appreciated!
>
> Jez
> --
> View this message in context:
> http://osgeo-org.1803224.n2.nabble.com/Symbol-image-transparency-problem-tp5389483p5389483.html
> Sent from the TileCache mailing list archive at Nabble.com.
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MAP
NAME "IPMap"
EXTENT 529445 179961 529555 180038 # The Mall, London
SIZE 1200 1200
UNITS meters
IMAGETYPE PNG24
IMAGECOLOR 190 255 255
SHAPEPATH "."
PROJECTION
"init=epsg:27700" # OSGB39
END
SYMBOL
NAME "nonconiferousTreeGeometry"
TYPE pixmap
IMAGE "Templates/TopographyLayer/Symbols/positionedNonconiferousTreeSymbol.png"
END
LAYER
NAME "TopographicPoint"
STATUS off
TYPE point
UNITS meters
MINSCALEDENOM 0
MAXSCALEDENOM 3125
TRANSPARENCY alpha
SIZEUNITS meters
TILEINDEX "OSMasterMap/TopographyLayer/TopographicPoint"
CLASS
NAME "positionedNonconiferousTreeSymbol"
EXPRESSION (("[descriptiv]" == "General Feature") AND ("[descript_1]" == "Positioned Nonconiferous Tree") AND ("[make]" == "Natural"))
STYLE
SYMBOL "nonconiferousTreeGeometry"
SIZE 5
END
END
END
END
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