Is there any convenient way to tell whether the clustering process has finished/ended? I don't seem to see any native clusteringend
event in the clustering provider that I can listen to.
Have been bangin' my head again since the last couple of days on this issue. =(
Yeah, whatever. Rather than waiting for some disappointing answer from some HERE Maps rookie, I tried to work around my issue and made something freaky like so (haven't tested it thoroughly but it's been working quite well so far):
var
/*
* Work "listen-to-clusteringend-event-issue" around.
*/
processedNoisePointCounter = 0,
incrementProcessedNoisePoint = function () {
processedNoisePointCounter++;
if (processedNoisePointCounter === dataPoints.length) {
map.dispatchEvent('clusteringend');
}
},
clusteredDataProvider = new H.clustering.Provider([]),
defaultTheme = clusteredDataProvider.getTheme(),
customTheme = {
/**
*
* @implements {H.clustering.ITheme.getClusterPresentation}
*/
getClusterPresentation: function (cluster) {
var clusterMarker = defaultTheme.getClusterPresentation.call(defaultTheme, cluster);
cluster.forEachEntry(function (entry) {
if (!entry.isCluster()) {
incrementProcessedNoisePoint();
}
});
return clusterMarker;
},
/**
*
* @implements {H.clustering.ITheme.getNoisePresentation}
*/
getNoisePresentation: function (noisePoint) {
var noiseMarker = defaultTheme.getNoisePresentation.call(defaultTheme, noisePoint);
incrementProcessedNoisePoint();
return noiseMarker;
}
};
clusteredDataProvider.setTheme(customTheme);
clusteredDataProvider.setDataPoints(dataPoints);
var layer = new H.map.layer.ObjectLayer(clusteredDataProvider);
map.addLayer(layer);
map.addEventListener('clusteringend', function () {
var message = 'Clustering allegedly ends. ;)';
console.log(message);
window.alert(message);
});
The JSFiddle is available here.