[ka-Map-users] IE6 & Transparency with layers

Lorenzo Becchi lorenzo at ominiverdi.com
Mon Aug 18 18:16:06 EDT 2008 

I guess you have to paste or attach your mapfile (clean any possible 
passwords)

have you deleted your cache?


manu - wrote:
> hehehe...yes, that's true,...it's better when you get the same result, 
> but it will be much more better if the results where the desired.
>
> I've made the changes you suggested me, but still have no results.
>
> I hope you have any other idea. If you need more information you only 
> have to ask for it.
>
> Thank you very much
>
> Manu
>
>
> > Date: Mon, 18 Aug 2008 23:10:55 +0200
> > From: lorenzo at ominiverdi.com
> > CC: ka-map-users at lists.maptools.org
> > Subject: Re: [ka-Map-users] IE6 & Transparency with layers
> >
> >
> >
> > manu - wrote:
> > > Hello Lorenzo,
> > >
> > > First of all, thank you for your response.
> > >
> > > About what you said, i've changed the format type from png24 to png16
> > > in the map file, and what i get now is that i have no transparency
> > > both in ie6 and firefox.
> >
> > hehe, so that's much better now. same behavior is a good sign.
> >
> > I guess that at the moment your problem could be related to:
> >
> > 1) TRASPARENT attribute on MAP object
> > it should be ON (not sure is mandatory)
> > MAP
> > ...
> > TRANSPARENT ON
> > ...
> >
> >
> > 2) IMAGEFORMAT on LAYER's METADATA
> > LAYER
> > ...
> > METADATA
> > IMAGEFORMAT "PNG"
> > ...
> > END
> > END
> >
> >
> > 3) NO OUTPUTFORMAT definition on MAP Object for PNG
> > to be sure you don't override the default value
> >
> >
> >
> > hope this helps
> >
> > Lorenzo
> >
> >
> >
> >
> >
> > >
> > > I'm sorry, but it's important for me that it works in the same way
> > > with those web browsers.
> > >
> > > Thank you very much.
> > >
> > > Manu
> > >
> > > > Date: Thu, 14 Aug 2008 12:10:30 +0200
> > > > From: lorenzo at ominiverdi.com
> > > > CC: ka-map-users at lists.maptools.org
> > > > Subject: Re: [ka-Map-users] IE6 & Transparency with layers
> > > >
> > > > Hola Manu,
> > > > just to say that using png24 with IE6 and the JS trick is not a good
> > > > idea at all.
> > > > the rendering is very slow and the overall performances of the map
> > > > navigation get bad quickly.
> > > > I suggest you to use PNG (PNG16) instead.
> > > > you'll avoid all kind of problems on rendering.
> > > > ciao
> > > > Lorenzo
> > > >
> > > >
> > > > manu - wrote:
> > > > > Hey,
> > > > >
> > > > > I've changed the kaMap.js file in order to put the class 
> attribute in
> > > > > each of the images of the tile, and now my tiles look like this:
> > > > >
> > > > > <img id="i30" class="png24" height="256" width="256"
> > > 
> src="http://192.168.10.43/ka-map/htdocs/tile.php?map=gmap&t=-3072&l=512&s=227538135372&g=Proyectos&i=png24" 
>
> > > style="position:
> > > > > absolute; top: -256px; left: 0px; width: 256px; height: 256px;
> > > > > visibility: visible;"/>
> > > > >
> > > > > But the result is the same as before, i have no transparency.
> > > > >
> > > > > Any ideas?
> > > > >
> > > > > Regards.
> > > > >
> > > > > Manu
> > > > >
> > > > >
> > > 
> ------------------------------------------------------------------------
> > > > > From: malbela7 at hotmail.com
> > > > > To: ka-map-users at lists.maptools.org
> > > > > Subject: RE: [ka-Map-users] IE6 & Transparency with layers
> > > > > Date: Tue, 29 Jul 2008 20:08:39 +0000
> > > > >
> > > > > Thank you so much Jason,
> > > > >
> > > > > Hope someone jumps in and give us some ligth
> > > > >
> > > > > Regards.
> > > > >
> > > > > Manu
> > > > >
> > > > >
> > > 
> ------------------------------------------------------------------------
> > > > > From: jfournier at dmsolutions.ca
> > > > > To: ka-map-users at lists.maptools.org
> > > > > Subject: RE: [ka-Map-users] IE6 & Transparency with layers
> > > > > Date: Tue, 29 Jul 2008 15:10:20 -0400
> > > > >
> > > > > Hi Manu,
> > > > >
> > > > >
> > > > >
> > > > > I took a look. The tiles do not appear to have class="png24" 
> on them:
> > > > >
> > > > >
> > > > >
> > > > > <img width="256" height="256"
> > > > >
> > > 
> src="http://216.230.155.125/ka-map/htdocs/tile.php?map=gmap&t=-2560&l=1024&s=227538135372&g=Proyectos&i=png24" 
>
> > >
> > > > > style="position: absolute; top: 256px; left: 768px; width: 256px;
> > > > > height: 256px; visibility: visible;" id="i75"/>
> > > > >
> > > > >
> > > > >
> > > > > It’s possible that the class is being applied via the DOM but 
> I don’t
> > > > > think that’s the case. It’s been a while - I can’t recall if 
> there’s
> > > > > a way through ka-Map‘s API to apply png24 to the tiles or not.
> > > > > Perhaps others can jump in and let us know if there’s a way. 
> If not
> > > > > then you’ll likely want to use 8 bit pngs (and sacrifice alpha
> > > > > transparency for IE6 compatibility).
> > > > >
> > > > >
> > > > >
> > > > > Best regards,
> > > > >
> > > > > Jason
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > *From:* ka-map-users-bounces at lists.maptools.org
> > > > > [mailto:ka-map-users-bounces at lists.maptools.org] *On Behalf Of 
> *manu -
> > > > > *Sent:* Tuesday, July 29, 2008 2:00 PM
> > > > > *To:* ka-map-users at lists.maptools.org
> > > > > *Subject:* RE: [ka-Map-users] IE6 & Transparency with layers
> > > > >
> > > > >
> > > > >
> > > > > Sorry Jason, i just clicked the Reply button without 
> considering the
> > > > > mailing list.
> > > > >
> > > > > Here you have the url where you can find the sample i'm 
> working on.
> > > > >
> > > > > http://216.230.155.125/ka-map/htdocs
> > > > >
> > > > > If you open it with IE6 and select the layer "Proyectos" you 
> can see
> > > > > what is going wrong.
> > > > >
> > > > > Thank you
> > > > >
> > > > >
> > > 
> ------------------------------------------------------------------------
> > > > >
> > > > > From: jfournier at dmsolutions.ca
> > > > > To: ka-map-users at lists.maptools.org
> > > > > Subject: RE: [ka-Map-users] IE6 & Transparency with layers
> > > > > Date: Tue, 29 Jul 2008 13:35:03 -0400
> > > > >
> > > > > Hi Manu,
> > > > >
> > > > >
> > > > >
> > > > > Please reply to the list – this information could helps others 
> and,
> > > > > more importantly, someone else may be able to provide you with the
> > > > > answer you’re looking after.
> > > > >
> > > > >
> > > > >
> > > > > Transparency for 24 bit PNGs is supported by FF and IE7 so 
> it’s not a
> > > > > good indicator of the png24 class at work. Some reasons why 
> this may
> > > > > not be working:
> > > > >
> > > > >
> > > > >
> > > > > - No width set on the image (required)
> > > > >
> > > > > - No height set on the image (required)
> > > > >
> > > > > - No transparent.gif (or equivalent) provided
> > > > >
> > > > > - The png24 class would appear to be present but isn’t (unlikely)
> > > > >
> > > > >
> > > > >
> > > > > Do you have a url that we can see?
> > > > >
> > > > >
> > > > >
> > > > > Best regards,
> > > > >
> > > > > Jason
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > *From:* manu - [mailto:malbela7 at hotmail.com]
> > > > > *Sent:* Tuesday, July 29, 2008 12:56 PM
> > > > > *To:* Jason Fournier
> > > > > *Subject:* RE: [ka-Map-users] IE6 & Transparency with layers
> > > > >
> > > > >
> > > > >
> > > > > Hi Jason,
> > > > >
> > > > > Thank you very much for your response.
> > > > >
> > > > > The class png24 is defines and i'm using it with no results on IE6
> > > > > (working ok in firefox and ie7). The thing is when i have layers
> > > > > divided by group and i want to put one layer with point over 
> another
> > > > > one which is a polygon. In this case, even when i have defined the
> > > > > point layer with the imageformat set to png24, i have no 
> transparency
> > > > > and i get just the point without the polygon layer.
> > > > >
> > > > > Thank you vey much.
> > > > >
> > > > > Manu
> > > > >
> > > > >
> > > 
> ------------------------------------------------------------------------
> > > > >
> > > > > From: jfournier at dmsolutions.ca
> > > > > To: ka-map-users at lists.maptools.org
> > > > > Subject: RE: [ka-Map-users] IE6 & Transparency with layers
> > > > > Date: Tue, 29 Jul 2008 11:00:34 -0400
> > > > >
> > > > > Hi Manu,
> > > > >
> > > > >
> > > > >
> > > > > If I recall correctly ka-Map comes with a css class called 
> png24 (ie,
> > > > > the pngfix you refer to) – put this on your image, specify a 
> width
> > > and
> > > > > a height (required), and it should work for you. If there is 
> no png24
> > > > > class then add the following to your css:
> > > > >
> > > > >
> > > > >
> > > > > img.png24 {
> > > > >
> > > > > filter:expression(msApplyPNGFilter(this));
> > > > >
> > > > > }
> > > > >
> > > > >
> > > > >
> > > > > And the following to your javascript:
> > > > >
> > > > >
> > > > >
> > > > > function msApplyPNGFilter(o) {
> > > > >
> > > > > var t="./images/transparent.gif";
> > > > >
> > > > > if( o.src != t ){
> > > > >
> > > > > var s=o.src; o.src = t; o.runtimeStyle.filter =
> > > > >
> > > 
> "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+s+"',sizingMethod='scale')";
> > > > >
> > > > > }}
> > > > >
> > > > >
> > > > >
> > > > > You will need a single pixel transparent.gif in your images 
> folder
> > > for
> > > > > the above to work verbatim.
> > > > >
> > > > >
> > > > >
> > > > > Hth
> > > > >
> > > > > Jason
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > *From:* ka-map-users-bounces at lists.maptools.org
> > > > > [mailto:ka-map-users-bounces at lists.maptools.org] *On Behalf Of 
> *manu -
> > > > > *Sent:* Tuesday, July 29, 2008 10:37 AM
> > > > > *To:* ka-map-users at lists.maptools.org
> > > > > *Subject:* [ka-Map-users] IE6 & Transparency with layers
> > > > >
> > > > >
> > > > >
> > > > > Hi Everyone,
> > > > >
> > > > > I've been working for some month with ka-map having great results
> > > with
> > > > > Mozilla Firefoz and IE 7. But i'm having problems with IE 6 and
> > > > > tranparency.
> > > > >
> > > > > The thing is that i have defined my layers with the imageformat
> > > set to
> > > > > png24 so the transparency works perfectly with Firefox and IE7. I
> > > have
> > > > > tried some workarounds with pngfix and css modifications with no
> > > result.
> > > > >
> > > > > I will be so thankful if someone could help me with this issue.
> > > > >
> > > > > Thank you very much for your time.
> > > > >
> > > > > Manu
> > > > >
> > > > >
> > > 
> ------------------------------------------------------------------------
> > > > >
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> > > > >
> > > > >
> > > 
> ------------------------------------------------------------------------
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> ------------------------------------------------------------------------
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