OpenLayers 3 Resize a feature -

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i using openlayers 3 , openstreetmap application. i've managed draw circle vectors on map draw markers, problem have circles have same size when zooming in , out. how can change size of vectors according resolution ?

here vector definition:

var dealersource = new ol.source.vector(); function dealerstyle(feature) {     var style = new ol.style.style({         image: new ol.style.circle({             radius: 6,             stroke: new ol.style.stroke({                 color: 'white',                 width: 2             }),             anchor: [1.5, 1.5],             fill: new ol.style.fill({                 color: 'green'             })         })     });     return [style]; }

you can change size of circle depending on zoom level ( if that's want )

var dealersource = new ol.source.vector(); function dealerstyle(feature) {     var style = new ol.style.style({         image: new ol.style.circle({             radius: map.getview().getzoom(),             stroke: new ol.style.stroke({                 color: 'white',                 width: 2             }),             anchor: [1.5, 1.5],             fill: new ol.style.fill({                 color: 'green'             })         })     });     return [style]; }

getzoom() returns zoom level of map number can either use or transformation on suit desired size of circle.

note above bigger zoom level bigger circle drawn, inverse can replace value by:

yourmaxzoomlevel - map.getview().getzoom()

you can use getresolution() returns number too


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