2
我在JMapViewer
上有两个自定义图像作为标记。我希望地图设置适当的平移和缩放,以便两个标记在地图显示中可见。我有一个按钮可以做到。所以,发生的事情是地图在加载时不会放大到这些标记;但是当我点击按钮时,它确实如此。有没有办法在加载时设置正确的平移和缩放?JMapViewer:当地图刚刚加载时,平移和缩放未设置
public class PanelAcars extends javax.swing.JPanel implements JMapViewerEventListener
{
private final JMapViewerTree treeMap;
public PanelAcars()
{
super();
initComponents(); // GUI components
treeMap = new JMapViewerTree("Zones");
// Listen to the map viewer for user operations so components will
// receive events and update
map().addJMVListener(this);
setLayout(new BorderLayout());
pnlAcarsMapView = new JPanel(new BorderLayout());
JPanel panelTop = new JPanel();
JPanel panelBottom = new JPanel();
JPanel helpPanel = new JPanel();
add(pnlAcarsMapView, BorderLayout.NORTH);
add(helpPanel, BorderLayout.SOUTH);
pnlAcarsMapView.add(panelTop, BorderLayout.NORTH);
pnlAcarsMapView.add(panelBottom, BorderLayout.SOUTH);
/* THIS BUTTON WORKS!!! */
JButton button = new JButton("Zoom...");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
map().setDisplayToFitMapMarkers();
}
});
final JCheckBox showZoomControls = new JCheckBox("Show zoom controls");
showZoomControls.setSelected(map().getZoomControlsVisible());
showZoomControls.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
map().setZoomContolsVisible(showZoomControls.isSelected());
}
});
panelBottom.add(showZoomControls);
final JCheckBox scrollWrapEnabled = new JCheckBox("Scrollwrap enabled");
scrollWrapEnabled.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
map().setScrollWrapEnabled(scrollWrapEnabled.isSelected());
}
});
panelBottom.add(scrollWrapEnabled);
panelBottom.add(button);
add(treeMap, BorderLayout.CENTER);
/* Add Airports to the map */
LayerGroup mapGroupAirports = new LayerGroup("MapAirports");
Layer mapLayerDep = mapGroupAirports.addLayer("MapDep");
Layer mapLayerDest = mapGroupAirports.addLayer("MapDest");
Layer mapLayerAlt = mapGroupAirports.addLayer("MapAlt");
/* Add Plane to the map */
Layer mapLayerPlane = new Layer("MapPlane");
/* Set coordinates */
Coordinate coordinatesPlane = new Coordinate(49.814284999, 98.642065999);
Coordinate coordinatesDep = new Coordinate(23.814284999, 45.642065999);
JMapViewerMarkerCustomImage markerPlane;
JMapViewerMarkerCustomImage markerDep;
Image imageMarkerPlane;
Image imageMarkerDep;
try
{
imageMarkerPlane = ImageIO.read(this.getClass().getResource("/images/image1.png"));
markerPlane = new JMapViewerMarkerCustomImage(coordinatesPlane,imageMarkerPlane);
map().addMapMarker(markerPlane);
imageMarkerDep = ImageIO.read(this.getClass().getResource("/images/image2.png"));
markerDep = new JMapViewerMarkerCustomImage(coordinatesDep,imageMarkerDep);
map().addMapMarker(markerDep);
// AND THIS IS NOT WORKING AT LOADING!!!
map().setDisplayToFitMapElements(true, true, true);
} catch (IOException ex) {
ex.printStackTrace();
}
map().addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (e.getButton() == MouseEvent.BUTTON1) {
map().getAttribution().handleAttribution(e.getPoint(), true);
}
}
});
map().addMouseMotionListener(new MouseAdapter() {
@Override
public void mouseMoved(MouseEvent e) {
Point p = e.getPoint();
boolean cursorHand = map().getAttribution().handleAttributionCursor(p);
if (cursorHand) {
map().setCursor(new Cursor(Cursor.HAND_CURSOR));
} else {
map().setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
}
//if (showToolTip.isSelected()) map().setToolTipText(map().getPosition(p).toString());
}
});
}
非常感谢!
垃圾。非常感谢!它现在有效。关于你的第二个评论,我有点困惑。正如你所建议的,我试图扩展DefaultMapController而不是扩展JMapViewer。因此,代码被破坏,因为现在找不到'super()','setLayout','add()'等等。没有它,在'new DefaultMapController(map)'方法中,找不到map。谢谢! –
垃圾。我可以再问一个问题吗?要实现'tileLoadingFinished()',我必须将类扩展为JMapViewer而不是Panel。因此,现在我在地图上看到**两个**缩放控件,一个在另一个后面。看起来第二个缩放控制器添加了这个:'add(treeMap,BorderLayout.CENTER)'。但是,如果我删除此行,我的自定义标记不再可见。你知道我可以如何移除保留'tileLoadingFinished()'的第二个缩放控件吗?非常感谢! –
看起来你可以让'JMapViewerTree'实现'TileLoaderListener'并且在'getViewer()'返回的'JMapViewer'上调用'setDisplayToFitMapMarkers()'。 – trashgod