Marcelo, Yes, I have looked at MOpacityControl before, but I don't think it will exactly work for my purposes. Correct me if I'm wrong, but it is creating a CustomMapType for each overlay, and fast switching between 17+ of these would not be a fun. As I said, I have modified the maptiler.org slider, and in Firefox, it can in real time change the opacity of all 17 overlays as I slide, by grabbing the divs. Now, I just need to replicate this behavior in IE - something I haven't been able to do at this point.
-Joe On Jun 25, 9:45 am, Marcelo <[email protected]> wrote: > Have you tried MOpacityControl?http://maps.forum.nu/gm_custom_controls.html > > Also implemented > here:http://maps.forum.nu/gm_main.html?lat=37.649034&lon=-96.855469&z=4&mT... > > -- > Marcelo -http://maps.forum.nu > -- > > On Jun 25, 4:17 pm, Joe <[email protected]> wrote: > > > I have a map that contains, at the moment, 17 large tile layers likely > > with more to come. I need to have an opacity slider on my map that > > changes the opacity for all of the tile layers at once. > > > I have tried > > using:http://www.maptiler.org/google-maps-overlay-opacity-control/ > > > I looks nice and works great - for one overlay. But for 17, it runs > > so slow that firefox asks me if I want to continue running the > > script. So, I tried to implement this: > > > On Aug 19 2008, 1:04 pm, bratliff <[email protected]> wrote: > > > > map.addOverlay(whatever); > > > map.getPane(1).lastChild.id="yourdaddy" > > > var div=document.getElementById("yourdaddy"); > > > > // For FF & others > > > > div.style.opacity=whatever; > > > > // For IE > > > > div.filters.alpha.opacity=Math.round(100*whatever); > > > > For IE, you will have to prime the pump with: > > > > div.style.filter="alpha(opacity=100)"; > > > > Otherwise, "div.filters" will be undefined. > > > > I believe "div.style.MozOpacity" is now obsolete. > > > from this thread: > > >http://groups.google.com/group/Google-Maps-API/browse_thread/thread/b... > > which I can't reply to... is it closed? (I'm new here) > > > Anyway, it works great, and instantly in FF. I can even have it > > adjust all 17 as I slide the slider, but I can't figure out how to do > > it for IE and this isn't working: > > > function setO(i, level) { > > var div=document.getElementById("overlay_id_"+i); > > // For FF & others > > // div.style.opacity=level; > > // For IE > > div.style.filter="alpha(opacity=100)"; > > div.filters.alpha.opacity=Math.round(100.0*level); > > > } > > > The first time this function is called in IE, all of my png tiles just > > vanish. I'm not exactly the expert on opacity in IE. Any ideas? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
