import org.jdesktop.swingx.JXMapKit; //导入依赖的package包/类
public static int calcMaxZoomLevel(JXMapKit mapKit, Track track) {
	JXMapViewer mapViewer = mapKit.getMainMap();
	int mmw = mapViewer.getWidth();
	int mmh = mapViewer.getHeight();
	TileFactory tileFactory = mapViewer.getTileFactory();
	int maximumZoomLevel = tileFactory.getInfo().getMaximumZoomLevel();
	int minimumZoomLevel = tileFactory.getInfo().getMinimumZoomLevel();
	for (int i = maximumZoomLevel; i >= minimumZoomLevel; i--) {
		Rectangle2D tr = getBounds(track, i, tileFactory);
		if (tr.getWidth() > mmw || tr.getHeight() > mmh) {
			return i + 1;
		}
	}
	return minimumZoomLevel;
}
 

import org.jdesktop.swingx.JXMapKit; //导入依赖的package包/类
public MapViewPlugin() {
	this.mapKit = new JXMapKit();
	this.mapKit.setDefaultProvider(DefaultProviders.OpenStreetMaps);
	this.mapKit.getMainMap().addMouseListener(createMouseListener());
	this.mapKit.addComponentListener(new ComponentAdapter() {
		@Override
		public void componentResized(ComponentEvent ev) {
			centerToTrack();
			zoomToTrack();
		}
	});
}
 

import org.jdesktop.swingx.JXMapKit; //导入依赖的package包/类
public JXMapKit getMapKit() {
	return mapKit;
}