Hi I've been having a play with OpenLayers today and thoroughly enjoying it. I'm not a skilled coder, but can usually hack things together.
I have made good progress but am having problems with the following, and wondered if anyone could give any guidance? - clustering placemarks - styling the cluster markers and setting their behaviour to either list all images or to zoom in to that location - adding a 'loading' image each time the Flickr API is being called (it can be quite slow) A bit of background and where I'm up to ... A while ago I developed a dynamic kml service and a Layar-based Augmented Reality mobile app for Flickr Commons images, using the Flickr API. If you're not familiar with Flickr Commons, it's where a large number of major cultural sector organisations share collections of historic images - currently well over 200,000 images, with around 26,000 geotagged. More on where I got to here - http://www.whatsthatpicture.com/2011/12/mapping-flickr-commons As you'll see, I also started to put together a straight Google Maps API version - see http://www.whatsthatpicture.com/flickr/commons-map.php - but ran into some issues and abandoned it, hence why I'm now looking at OpenLayers. I have got the basic map functionality set up by pulling bits of various online examples, most notably the example for dynamically loading Flickr data using the BBOX - see http://www.whatsthatpicture.com/flickr/commons-osmtest-v3.htm but what I would like to do is load more placemarks but have them cluster. When I tried to do this the clustering works but the bahviour is then wrong, even when zoomed in to single placemarks - http://www.whatsthatpicture.com/flickr/commons-osmtest-v3.htm . I've also been looking at the AnimatedCluster method described at http://acuriousanimal.com/code/animatedCluster/ as I like the visual appearance of this. But in either case, what I'd really like is for the behaviour to be that it zooms in, or displays a list of aggregated images. Finally, as mentioned above, because the API responses can be slow (and I want to pull in more items which will only make this worse) I want to have a loading image display until the layar has finished loading. Is this the sort of thing that http://trac.osgeo.org/openlayers/wiki/Addins/LoadingPanel would deal with? Sorry for the long email from a noob! Thanks, James -- --- James Morley www.jamesmorley.net / @jamesinealing www.whatsthatpicture.com / @PhotosOfThePast www.apennypermile.com
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