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When you are computing distance (I'm guessing using a buffer tool given the concentric color zones), under Environments, expand Processing Extent and set the Extent to your Polygon file.


whatever type of vector layer you are using you can add this function in OpenLayers 3 to fit your map extent to the layer one: var extent=yourVectorSource.getFeatures()[0].getGeometry().getExtent(); yourVectorSource.forEachFeature(function(feature){ ol.extent.extend(extent,feature.getGeometry().getExtent())}); yourMap.getView().fit(extent, yourMap.getSize())...

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