gif highway shield transparency issues

Steve Lime steve.lime at DNR.STATE.MN.US
Tue Dec 20 22:59:28 EST 2005

Try reverting to IMAGETYPE 'png24' and add the line TRANSPARENCY ALPHA to the image with the shield markers and see what happens.


>>> "Clever, Max" <Maxc at SPICERGROUP.COM> 12/20/05 5:45 PM >>>
Hi Steve,
it was transparent and did work when I set the imagetype to GIF in the mapfile.  This made the rest of my aerial photos lose a lot of visual quality but did make my GIF transparent.  I previously had the Imagetype set to png24 because it displays my aerials really well.  Unless I can get the GIF to be transparent in png24 I don't think I want to switch to the GIF setting just for one symbol.  I have attached my highway shield gif.  I hope you can still help.

	-----Original Message----- 
	From: Steve Lime [mailto:steve.lime at] 
	Sent: Tue 12/20/2005 5:11 PM 
	To: Clever, Max 
	Subject: Re: [UMN_MAPSERVER-USERS] gif highway shield transparencyissues

	Max: Is the image transparent? Please pass along so I can have a look.
	>>> "Clever, Max" <Maxc at SPICERGROUP.COM> 12/20/05 11:06 AM >>>
	I took out the TRANSPARENT line in the symbol file and the map still shows the shield with a white canvas behind it.  I checked my image in a separate HTML with a colored background just to make sure the image was transparent and it was.  Is there a certain type of transparency that is necessary for the image?  Is there some setting in the php or Map file that would not allow transparent images to work?  I'm at my wits end.  I am using Mapserver 4.2. I really hope I'm not wasting peoples time with this question.
	-----Original Message-----
	From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]On
	Behalf Of Steve Lime
	Sent: Friday, December 16, 2005 1:58 PM
	Subject: Re: [UMN_MAPSERVER-USERS] gif highway shield transparency
	I'm assuming you must be looking at old documentation. To make a pixmap symbol transparent you must create
	a transparent image. The transparent parameter in a symbol file is unused.
	>>> "Clever, Max" <Maxc at SPICERGROUP.COM> 12/16/05 11:17 AM >>>
	I've tried ffffff and #ffffff and fff and apparently the TRANSPARENT index cannot be letters because it won't let the mapfile process right when I try those.
	-----Original Message-----
	From: punk.kish at [mailto:punk.kish at]On Behalf Of P
	Sent: Friday, December 16, 2005 11:35 AM
	To: Clever, Max; MapServer
	Subject: Re: [UMN_MAPSERVER-USERS] gif highway shield transparency
	Clever, Max wrote:
	> Hi All,
	> R:255 G:255 B:255 Hex:ffffff index:000 Websafe
	> Transparent
	> Am I not making the gif transparent properly in fireworks?  I've also tried "TRANSPARENT 000" b
	000 is black
	try fff
	Puneet Kishor

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