gistfile1.js

z.returnCollectionsMapAnnotations = function(args) {
	    var data = [];
	    
	    var collections = args.collections;
	    
	    // Make sure these will be higher / lower than any actual lat / lngs
	    max_lat = -999;
	    max_lng = -999;
	    min_lat = 9999;
	    min_lng = 9999;
	    
	    for (c = 0; c < collections.length; c++)
	    {
	        if ((collections[c].lat && collections[c]['long']) || 
	                (collections[c].properties.lat && collections[c].properties['long']))
	        {
	    		var marker = Ti.Map.createAnnotation({
	    		    latitude: z.showPublicCollections ? collections[c].lat : collections[c].properties.lat,
	    		    longitude: z.showPublicCollections ? collections[c]['long'] : collections[c].properties['long'],
	    		    title: collections[c].title,
	    		    pincolor: Titanium.Map.ANNOTATION_RED,
	    		    animate: true,
	    		    slug: collections[c].slug,
	    		    username: collections[c].username,
	    		    rightButton: Titanium.UI.iPhone.SystemButton.DISCLOSURE
	    		});
	    		
	    		data.push(marker);
	    		
	    		if (z.showPublicCollections)
	    		{
    	    		if (parseFloat(collections[c].lat) > max_lat)  { max_lat = parseFloat(collections[c].lat); }
    	    		if (parseFloat(collections[c].lat) < min_lat)  { min_lat = parseFloat(collections[c].lat); }
    	    		if (parseFloat(collections[c]['long']) > max_lng) { max_lng = parseFloat(collections[c]['long']); }
    	    		if (parseFloat(collections[c]['long']) < min_lng) { min_lng = parseFloat(collections[c]['long']); }
    	    	}
    	    	else
    	    	{
    	    	    if (parseFloat(collections[c].properties.lat) > max_lat)
    	    	                    { max_lat = parseFloat(collections[c].properties.lat); }
    	    	    if (parseFloat(collections[c].properties.lat) < min_lat)
    	    	                    { min_lat = parseFloat(collections[c].properties.lat); }
    	    	    if (parseFloat(collections[c].properties['long']) > max_lng)
    	    	                    { max_lng = parseFloat(collections[c].properties['long']); }
    	    	    if (parseFloat(collections[c].properties['long']) < min_lng)
    	    	                    { min_lng = parseFloat(collections[c].properties['long']); }
    	    	}
	    	}
	    }
	    
	    // If we got no markers, we'll need to fallback to a useful location
	    if (data.length == 0 && z.location.avaialble)
	    {
	        max_lat = parseFloat(z.location.lat);
	        max_lng = parseFloat(z.location.lng);
	        min_lat = parseFloat(z.location.lat);
	        min_lng = parseFloat(z.location.lng);
	    }
	    else if (data.length == 0)
	    {
	        max_lat = 90;
	        max_lng = 180;
	        min_lat = -90;
	        min_lng = -180;
	    }
	    
	    z.mapCenterLat = parseFloat((max_lat - min_lat) / 2 + min_lat);
	    z.mapCenterLng = parseFloat((max_lng - min_lng) / 2 + min_lng);
	    z.mapDeltaLat = (max_lat - min_lat) + 0.03;
        z.mapDeltaLng = (max_lng - min_lng) + 0.03;
	    
	    //Ti.API.info('z.mapCenterLat: '+z.mapCenterLat+', z.mapCenterLng: '+z.mapCenterLng);
        Ti.API.info('z.mapCenterLat: '+z.mapCenterLat+', z.mapCenterLng: '+z.mapCenterLng);
	    
	    return data;
	};