Style style = new Style();
style.setStrokeColor("blue");
style.setStrokeWidth(3);
style.setFillOpacity(1);
VectorOptions vectorOptions = new VectorOptions();
vectorOptions.setStyle(style);
vectorLayer = new Vector("Vector", vectorOptions);
MarkersOptions markersOptions = new MarkersOptions();
markerLayer = new Markers("Markers", markersOptions);