[mapserver-users] PNG, which Netscape Version

[Ed McNierney]

Chip -

I think it's probably just buggy PNG support in Netscape.  The articles
you mentioned are indeed for IIS 4 and are not relevant or necessary for
IIS 5.  I have found (in general) that Netscape versions 4.x up until
4.76 or so are full of various annoying bugs.

	- Ed

-----Original Message-----
From: Hankley, Chip [mailto:Chip.Hankley at GASAI.Com]
Sent: Thursday, February 14, 2002 5:12 PM
To: Ed McNierney
Cc: 'MapServer List (E-mail)'
Subject: RE: [mapserver-users] PNG, which Netscape Version


OK, I downloaded 4.78, and it works fine. Weird.

Thanks again.

-----Original Message-----
From: Hankley, Chip 
Sent: Thursday, February 14, 2002 3:58 PM
To: 'Ed McNierney'
Cc: MapServer List (E-mail)
Subject: RE: [mapserver-users] PNG, which Netscape Version


I'm testing 4.08 on Win 2K Pro. I'll upgrade a few versions and try
that...
thanks for your help.

Interestingly, there are a number of articles about this:

http://www.libpng.org/pub/png/png-iis-config.html

although they seem to relate to IIS 4.0.

Chip

-----Original Message-----
From: Ed McNierney [mailto:ed at topozone.com]
Sent: Thursday, February 14, 2002 3:50 PM
To: Hankley, Chip
Cc: MapServer List (E-mail)
Subject: RE: [mapserver-users] PNG, which Netscape Version


Chip -

It looks fine on Netscape Communicator 4.78 on Windows 2000
Professional.  What version of Netscape (and what OS) is giving you
trouble?

	- Ed 

Ed McNierney
Chief Mapmaker
TopoZone.com
ed at topozone.com
(978) 251-4242


-----Original Message-----
From: Hankley, Chip [mailto:Chip.Hankley at GASAI.Com]
Sent: Thursday, February 14, 2002 4:46 PM
To: Ed McNierney
Cc: MapServer List (E-mail)
Subject: RE: [mapserver-users] PNG, which Netscape Version


Sure... the problem is on my test box (which is private), however, the
issue
seems to be the same on our public server as well.

http://www.gasai.com/GISApps/png_test.html

-----Original Message-----
From: Ed McNierney [mailto:ed at topozone.com]
Sent: Thursday, February 14, 2002 3:40 PM
To: Hankley, Chip; MapServer List (E-mail)
Subject: RE: [mapserver-users] PNG, which Netscape Version


Chip -

Can you put this up on a public server we could look at?  I'm serving
PNG images from an IIS/Win2K server to Netscape clients all the time...

	- Ed

-----Original Message-----
From: Hankley, Chip [mailto:Chip.Hankley at GASAI.Com]
Sent: Thursday, February 14, 2002 4:35 PM
To: Ed McNierney; MapServer List (E-mail)
Subject: RE: [mapserver-users] PNG, which Netscape Version


Thanks Ed...I had read that, and couldn't figure out whay my images
weren't
working in Netscape (still can't for that matter). Probably should've
offered up some more info from the beginning.

After some experimentation, this seems to be an IIS (IIS 5 on Win2k).
I'm
trying to view some PNG images in NS. If I put a png file into an HTML
document (using the IMG tag), I can open the file directly in NS, and it
works fine (e.g. I open c:\myfiles\png_test.html in NS). If on the other
hand, I try to bring up the file throught the web server (e.g.
http://localhost/png_test.html) it comes up as a broken link in NS.
Either
way works fine in IE. I can view the PNG images through NS on the libpng
test page as well... so, it seems fairly certain that this is a
"feature" of
IIS.

I found something on libpng about fixing this (basically adding an entry
for
PNG to the MIME map in IIS), but this does not seem to have helped.

Any ideas would be helpful... if I figure it out, I'll post.

Chip

-----Original Message-----
From: Ed McNierney [mailto:ed at topozone.com]
Sent: Thursday, February 14, 2002 3:23 PM
To: Hankley, Chip; MapServer List (E-mail)
Subject: RE: [mapserver-users] PNG, which Netscape Version


Chip -

Generally, version 4.04 and above.  For all the gory details (along with
other PNG application support info) visit
http://www.libpng.org/pub/png/pngapbr.html

	- Ed

Ed McNierney
Chief Mapmaker
TopoZone.com
ed at topozone.com
(978) 251-4242


-----Original Message-----
From: Hankley, Chip [mailto:Chip.Hankley at GASAI.Com]
Sent: Thursday, February 14, 2002 11:29 AM
To: MapServer List (E-mail)
Subject: [mapserver-users] PNG, which Netscape Version


Can anyone tell me the minimum version of Netscape required to view the
flavor of PNG images that MapServer produces?

(I'm using PHP / Mapscript with the 10/10/2001 dll from DM Solutions).

Thanks!

Chip Hankley