<div dir="ltr">Thanks Chris,<br><br>I tried that, and it doesn't work. So I reinvestigated what happens when I make WMS requests manually and found that regardless of how I structure the request, I still get black output. The only way in which I get transparency is when I use Mapserver in "mode=map". So I think I'm back to debugging my Mapserver configuration.<br>
<br>Yay.<br>--<br><br><div class="gmail_quote">On Wed, Sep 24, 2008 at 12:44 PM, Christopher Schmidt <span dir="ltr"><<a href="mailto:crschmidt@metacarta.com">crschmidt@metacarta.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 class="Ih2E3d">On Wed, Sep 24, 2008 at 12:43:19PM -0700, Roger André wrote:<br>
> Ok, so I think this might actually be a Tilecache issue, though I'm sure it<br>
> can be resolved via configuration. I took a look in the cache, and the<br>
> tiles there don't have the background set to transparent. However, when I<br>
> make a WMS request directly, the tiles are returned with alpha correctly<br>
> inside of them.<br>
><br>
> I've read that this is because Tilecache doesn't correctly forward the<br>
> "Transparent=true" request to the WMS service. Is that true?<br>
<br>
</div>TileCache does not pass through any options from the request through to<br>
the WMS service.<br>
<br>
Assuming your'e using a WMS layer type, put ?transparent=true at the end<br>
of your URL. (Or, if you already have a "?" in your URL,<br>
"&transparent=true".)<br>
<br>
Regards,<br>
<font color="#888888">--<br>
Christopher Schmidt<br>
MetaCarta<br>
</font></blockquote></div><br></div>