OSMdroid 边界标记 [英] OSMdroid bounds marker
本文介绍了OSMdroid 边界标记的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
////OSMdroid 以标记为中心////
////OSMdroid centered on the markers////
我添加了标记,我需要以所有标记都可见的方式映射最大增加或减少
I add markers, I need to map the maximum increases or decreases in such a way that all markers were visible
我的代码:
public class mapcode extends Activity {
globalvar appState;
int stats=0;
private MapView mapView;
private IMapController mapController;
private SimpleLocationOverlay mMyLocationOverlay;
private ScaleBarOverlay mScaleBarOverlay;
ItemizedIconOverlay<OverlayItem> currentLocationOverlay;
DefaultResourceProxyImpl resourceProxy;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.map);
appState = ((globalvar) getApplicationContext());
mapView = (MapView) this.findViewById(R.id.mapview);
mapView.setTileSource(TileSourceFactory.MAPNIK);
// mapView.setBuiltInZoomControls(true); //кнопка ZOOM +-
mapView.setMultiTouchControls(true);
mapController = this.mapView.getController();
mapController.setZoom(2);
this.mMyLocationOverlay = new SimpleLocationOverlay(this);
this.mapView.getOverlays().add(mMyLocationOverlay);
this.mScaleBarOverlay = new ScaleBarOverlay(this);
this.mapView.getOverlays().add(mScaleBarOverlay);
// this.mapView
/////////////////
resourceProxy = new DefaultResourceProxyImpl(getApplicationContext());
GeoPoint currentLocation = new GeoPoint(55.860863,37.115046);
GeoPoint currentLocation2 = new GeoPoint(63.557413,-156.102119);
OverlayItem myLocationOverlayItem = new OverlayItem("Here", "Current Position", currentLocation);
Drawable myCurrentLocationMarker = this.getResources().getDrawable(R.drawable.a);
myLocationOverlayItem.setMarker(myCurrentLocationMarker);
// myLocationOverlayItem.setMarkerHotspot(HotspotPlace.CENTER); //no working/
final ArrayList<OverlayItem> items = new ArrayList<OverlayItem>();
items.add(myLocationOverlayItem);
myLocationOverlayItem = new OverlayItem("Here", "Current Position", currentLocation2);
myCurrentLocationMarker = this.getResources().getDrawable(R.drawable.a);
myLocationOverlayItem.setMarker(myCurrentLocationMarker);
// myLocationOverlayItem.setMarkerHotspot(HotspotPlace.CENTER); // no working
items.add(myLocationOverlayItem);
currentLocationOverlay = new ItemizedIconOverlay<OverlayItem>(items,
new ItemizedIconOverlay.OnItemGestureListener<OverlayItem>() {
public boolean onItemSingleTapUp(final int index, final OverlayItem item) {
return true;
}
public boolean onItemLongPress(final int index, final OverlayItem item) {
return true;
}
}, resourceProxy);
this.mapView.getOverlays().add(this.currentLocationOverlay);
}
我添加了两个标记,但只有一个可见:
I added two markers, but only one is visible:
我需要将 osmdroid 居中并立即显示两个标记
and I need to osmdroid is centered and immediately showed both marker
推荐答案
我想你想要这样的:
int minLat = Integer.MAX_VALUE;
int maxLat = Integer.MIN_VALUE;
int minLong = Integer.MAX_VALUE;
int maxLong = Integer.MIN_VALUE;
ArrayList<OverlayItem> items = new ArrayList<OverlayItem>();
for (OverlayItem item : items) {
GeoPoint point = item.getPoint();
if (point.getLatitudeE6() < minLat)
minLat = point.getLatitudeE6();
if (point.getLatitudeE6() > maxLat)
maxLat = point.getLatitudeE6();
if (point.getLongitudeE6() < minLong)
minLong = point.getLongitudeE6();
if (point.getLongitudeE6() > maxLong)
maxLong = point.getLongitudeE6();
}
BoundingBoxE6 boundingBox = new BoundingBoxE6(maxLat, maxLong, minLat, minLong);
mMapView.zoomToBoundingBox(boundingBox);
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