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freaker started following the idea "[Tutorial] - Using WMS Map Provider with ModestMaps (epsg:4236 and epsg:900913)." in Modest Maps.

freaker reported a problem in Modest Maps on April 02, 2009 10:19:

Problem with cached tiles

Hi

I've commented on this in another thread as well, but I decided to make a seperate thread for the topic.

I'm having problems with cached tiles. It seems as the microsoft live maps not always are shown, and ofcourse then a cross-x tile is shown. I've used the activity window in safari and firebug in firefox and noticed that some tiles returns a 404. This does not have to be a problem if it wasnt for the caching of tiles. It seems like it is the browser cache which is the real problem as it won't reload the tile on next refresh. The only solution I've found so far is to empty the browser cache and then refresh...Changing map provider does not help.

I was thinking that maybe if you added a random string to urls of failed requests so that the browser cache won't interfere. It would probably be even better if modestmaps could prevent caching of failed tiles in the first place, but I don't know how we can do that.

Any input on this is highly appreciated.

EDIT: I forgot to mention that I use the lastest as3 build (not from svn trunk). I've changed the flex MapComponent to use the new TweenMap class, which by the way is awesome!

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freaker replied on April 01, 2009 13:35 to the question "How to clear cached tiles for a layer ?" in Modest Maps:

I'm having problems with cached tiles, but it seems as it is because of the browser cache. When I observe in firebug I noticed that once in a while the tile request returns with a 404. It seems as the failed tiles are not reloaded until I clear my browser cache. Changing map provider does not help. How about adding a random string to the failed urls so the browser cache will reload the tile?

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freaker replied on July 08, 2008 10:10 to the idea "Distance calculation" in Modest Maps:

Problem? I was suggesting that these functions should be added to the ModestMaps API, as they probably are useful for many users. If you have problems understanding the functions, then I suggest looking into the AS3 Math API. I ported these functions from javascript.

freaker replied on June 12, 2008 15:41 to the question "multiple data layers" in Modest Maps:

If you check out all posts here regarding markerclip it might be helpful. I use the markerclip objects as layers. I will add more to an extended markerclip class later. The map has its own markerclip it uses in putmarker, but you can make your own and add to the map. If I needed multiple tilesets, I would probably try adding multiple maps and sync them by listening to mapevents.

freaker asked a question in Modest Maps on June 12, 2008 10:13:

Path-marker issue

Hi again!

I am currently using the as3/flex api and I'm drawing paths for my objects on the map. I draw the path on one markerclip in order to prevent sluggish panning. This works well except from when the first location of the path no longer is visible on the screen, then the api takes over and hides the path (marker). I've been wondering if there was a way to prevent this functionality. Perheps there could be an optional boolean parameter to the putMarker or MarkerClip called something like alwaysVisible.

I could ofcourse solve this by adding each node of the path as a marker, but that's not what I want/prefer. Any suggestions?

UPDATE:
I found a satisfying solution (for now). I extended the MarkerClip class and overrided the updateClips function, so that it looks like this now:

override public function updateClips(event:Event=null):void
{
for each (var marker:DisplayObject in markers) {
updateClip(marker);
}
}

Instead of using map.putMarker(), I now create a new markerClip from my own markerclip class, and add it as a child of the map. This is essentially the same thing, as all clips you add using map.putMarker is added to a markerclip. However now I'm in control over the updates :)

This in fact gave me a solution to another issue I've been thinking about. I've wanted to seperate groups of markers on seperate layers. Using markerclips instead of putMarker gives me this opportunity. Great work guys! :)

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