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OpenLayers eraseFeatures doesn't erase features from map screen


OpenLayers eraseFeatures doesn't erase features from map screen

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OpenLayers eraseFeatures doesn't erase features from map screen
Tag : development , By : Jack
Date : January 02 2021, 06:48 AM


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OpenLayers Clustering Adds Features to Selected Features Array on Zoom


Tag : development , By : Heals1ic
Date : March 29 2020, 07:55 AM
will help you This behaviour (keeping selection of subfeatures after zooming in with selected cluster) is buried quite deep inside of Strategy.Cluster code. One solution would be to get deep into the code of Strategy.Cluster and making it remember really selected features and select only those on zoom in (actually - on reclustering, or calling Strategy.Cluster.cluster()). Second would be to track the selected features outside of openlayers by subscribing to event featureselected and reselecting features on zoomend.

Get all features from the Openlayers 3 viewport


Tag : javascript , By : obijywk
Date : March 29 2020, 07:55 AM
should help you out I am trying to find out all the features which are visible (viewport) on a layer in Openlayers 3. , I propose that first you get the extent of the view :
var extent = yourMap.getView().calculateExtent(yourMmap.getSize());
yourVectorSource.forEachFeatureInExtent(extent, function(feature){
    // do something 
}); 

OpenLayers 3 - deleting features


Tag : javascript , By : Kaputnik
Date : March 29 2020, 07:55 AM
it should still fix some issue So, after "stabbing in the dark" I finally figured out (by dumb luck). I just cut this block of code from delete case and put it near top of the code.
document.getElementById('js-remove').addEventListener('click', function() {
    vector.getSource().removeFeature(selectedFeature);
    overlay.setPosition(undefined);
    interaction.getFeatures().clear();
});

OpenLayers fitting before add features


Tag : javascript , By : anon
Date : March 29 2020, 07:55 AM
I hope this helps you . You can try and fit the view on addfeature
source.on('addfeature', function() {
    view.fit(source.getExtent());
});

Add features to the map in OpenLayers 5


Tag : development , By : cashshadow
Date : March 29 2020, 07:55 AM
hope this fix your issue I have a following code in HTML , Change
var marker = new ol.Feature({
    geometry: new ol.geometry.point(ol.proj.transform([16.9071388, 52.4901917], 'EPSG:4326', 'EPSG:3857')),
});
var marker = new ol.Feature({
    geometry: new ol.geom.Point(ol.proj.transform([16.9071388, 52.4901917], 'EPSG:4326', 'EPSG:3857')),
});
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