<div dir="ltr">Ok, so I think this might actually be a Tilecache issue, though I'm sure it can be resolved via configuration. I took a look in the cache, and the tiles there don't have the background set to transparent. However, when I make a WMS request directly, the tiles are returned with alpha correctly inside of them.<br>
<br>I've read that this is because Tilecache doesn't correctly forward the "Transparent=true" request to the WMS service. Is that true?<br>--<br><br><div class="gmail_quote">On Tue, Sep 23, 2008 at 7:41 PM, Roger André <span dir="ltr"><<a href="mailto:randre@gmail.com">randre@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div dir="ltr">Tried that, still get black. And I'm using Firefox, which I forgot to mention earlier.<br>
<font color="#888888">--</font><div><div></div><div class="Wj3C7c"><br><br><div class="gmail_quote">On Tue, Sep 23, 2008 at 7:04 PM, Arturo Torres <span dir="ltr"><<a href="mailto:artorresv@yahoo.com.mx" target="_blank">artorresv@yahoo.com.mx</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Try using GIF's, IE6 does not support PNG transparency<br>
<br>
<br>
----- Mensaje original ----<br>
<br>
Message: 1<br>
Date: Mon, 22 Sep 2008 14:17:06 -0700<br>
From: " Roger Andr? " <<a href="mailto:randre@gmail.com" target="_blank">randre@gmail.com</a>><br>
Subject: [Tilecache] Transparent backgrounds are black in Google Maps<br>
To: <a href="mailto:tilecache@openlayers.org" target="_blank">tilecache@openlayers.org</a><br>
Message-ID:<br>
<<a href="mailto:9c2015090809221417k722c8f15pdda00555265397a5@mail.gmail.com" target="_blank">9c2015090809221417k722c8f15pdda00555265397a5@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<div><div></div><div><br>
Hi everyone,<br>
<br>
I'm fairly certain this has nothing to do with Tilecache, but I figure<br>
someone else using it may have encountered the same problem in the past. I<br>
have a tile layer that's being served up as RGBA .png's with backgrounds set<br>
to transparent. In everything beside by Google Maps web page, the<br>
backgrounds are transparent. In Google Maps the backgrounds are displayed<br>
as black.<br>
<br>
gdalinfo says the following about the image type:<br>
Band 1 Block=731x1 Type=Byte, ColorInterp=Red<br>
Mask Flags: PER_DATASET ALPHA<br>
Band 2 Block=731x1 Type=Byte, ColorInterp=Green<br>
Mask Flags: PER_DATASET ALPHA<br>
Band 3 Block=731x1 Type=Byte, ColorInterp=Blue<br>
Mask Flags: PER_DATASET ALPHA<br>
Band 4 Block=731x1 Type=Byte, ColorInterp=Alpha<br>
<br>
Pretty sure it's a problem on the display side, not the image creation or<br>
fetching side, but I'm having trouble tracking it down.<br>
<br>
Thanks,<br>
<br>
Roger<br>
--<br>
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