Java GeoPoint類代碼示例

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
private void recenterMap() {
    if (DEBUG) Log.d(TAG, "Recentering map.");
    GeoPoint center = mMyLocationOverlay.getMyLocation();

    // if we have venues in a search result, focus on those.
    if (mVenueItemizedOverlay != null && mVenueItemizedOverlay.size() > 0) {
        if (DEBUG) Log.d(TAG, "Centering on venues: "
                + String.valueOf(mVenueItemizedOverlay.getLatSpanE6()) + " "
                + String.valueOf(mVenueItemizedOverlay.getLonSpanE6()));
        mMapController.setCenter(mVenueItemizedOverlay.getCenter());
        mMapController.zoomToSpan(mVenueItemizedOverlay.getLatSpanE6(), mVenueItemizedOverlay
                .getLonSpanE6());
    } else if (center != null
            && SearchVenuesActivity.searchResultsObservable.getQuery() == SearchVenuesActivity.QUERY_NEARBY) {
        if (DEBUG) Log.d(TAG, "recenterMap via MyLocation as we are doing a nearby search");
        mMapController.animateTo(center);
        mMapController.zoomToSpan(center.getLatitudeE6(), center.getLongitudeE6());
    } else if (center != null) {
        if (DEBUG) Log.d(TAG, "Fallback, recenterMap via MyLocation overlay");
        mMapController.animateTo(center);
        mMapController.setZoom(16);
        return;
    }
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
private void recenterMap() {
    // Previously we'd try to zoom to span, but this gives us odd results a lot of times,
    // so falling back to zoom at a fixed level.
    GeoPoint center = mMyLocationOverlay.getMyLocation();
    if (center != null) {
        Log.i(TAG, "Using my location overlay as center point for map centering.");
        mMapController.animateTo(center);
        mMapController.setZoom(16);
    } else {
        // Location overlay wasn't ready yet, try using last known geolocation from manager.
        Location bestLocation = GeoUtils.getBestLastGeolocation(this);
        if (bestLocation != null) {
            Log.i(TAG, "Using last known location for map centering.");
            mMapController.animateTo(GeoUtils.locationToGeoPoint(bestLocation));
            mMapController.setZoom(16);
        } else {
            // We have no location information at all, so we'll just show the map at a high
            // zoom level and the user can zoom in as they wish.
            Log.i(TAG, "No location available for map centering.");
            mMapController.setZoom(8);
        }
    }
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
private void recenterMap() {
    // Previously we'd try to zoom to span, but this gives us odd results a lot of times,
    // so falling back to zoom at a fixed level.
    GeoPoint center = mMyLocationOverlay.getMyLocation();
    if (center != null) {
        mMapController.animateTo(center);
        mMapController.setZoom(14);
    } else {
        // Location overlay wasn't ready yet, try using last known geolocation from manager.
        Location bestLocation = GeoUtils.getBestLastGeolocation(this);
        if (bestLocation != null) {
            mMapController.animateTo(GeoUtils.locationToGeoPoint(bestLocation));
            mMapController.setZoom(14);
        } else {
            // We have no location information at all, so we'll just show the map at a high
            // zoom level and the user can zoom in as they wish.
            Venue venue = mStateHolder.getVenues().get(0);
            mMapController.animateTo(new GeoPoint(
                    (int)(Float.valueOf(venue.getGeolat()) * 1E6), 
                    (int)(Float.valueOf(venue.getGeolong()) * 1E6)));
            mMapController.setZoom(8);
        }
    }
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
/** Called when a button has been clicked on by the user
 * @param v Reference to the {@link android.view.View} of the button
 */
public void onClick(View v) 
{
	GeoPoint ownPoint;
	// dispatch depending on button pressed
	switch(v.getId())
	{
	case R.id.mapview_my_location:
		ownPoint = ownLocation.getMyLocation();
		if (ownPoint != null)
			mapController.animateTo(ownPoint);
        break;
	case R.id.mapview_last_location:
    	mapController.animateTo(last_recorded_location);				// then centre map at it and use different marker pin!
		break;
	}	
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
MapOverlay(int color, GeoPoint[] points) {
	mPaintPoint = new Paint();
	mPaintPoint.setStyle(Paint.Style.FILL);
	mPaintPoint.setShadowLayer(6, 3, 3, 0xff000000);
	mPaintPoint.setColor(color);
	mPaintPoint.setAntiAlias(true);
	mPaintPointBorder = new Paint();
	mPaintPointBorder.setStyle(Paint.Style.STROKE);
	mPaintPointBorder.setColor(Color.BLACK);
	mPaintPointBorder.setAntiAlias(true);
	mPaintPointDot = new Paint();
	mPaintPointDot.setStyle(Paint.Style.FILL);
	mPaintPointDot.setColor(Color.BLACK);
	mPaintPointDot.setAntiAlias(true);
	this.setPointsToDraw(points);
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
@Override
public void draw(Canvas canvas, MapView mapView, boolean shadow) {
	super.draw(canvas, mapView, shadow);
	if (shadow || pointsToDraw == null || pointsToDraw.length == 0)
		return;
	for (GeoPoint p : pointsToDraw) {
		// convert point to pixels
		Point screenPts = new Point();
		GeoPoint pointToDraw = new GeoPoint(p.getLatitudeE6(),
				p.getLongitudeE6());
		mapView.getProjection().toPixels(pointToDraw, screenPts);
		int pointRadius = (int) mapView.getProjection()
				.metersToEquatorPixels(5);
		int dotRadius = (int) mapView.getProjection()
				.metersToEquatorPixels(2);
		canvas.drawCircle(screenPts.x, screenPts.y, pointRadius,
				mPaintPoint);
		canvas.drawCircle(screenPts.x, screenPts.y, pointRadius,
				mPaintPointBorder);
		canvas.drawCircle(screenPts.x, screenPts.y, dotRadius,
				mPaintPointDot);
	}
	return;
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
@Override
protected void onStart()
{
	super.onStart();
	//locations.open();
	Cursor c = locations.getAllLocations();
	c.moveToFirst();
	while (!c.isAfterLast())
	{
		adapter.add(c.getString(c.getColumnIndex(MyLocations.KEY_NAME)));
		loc.add(new GeoPoint(c.getInt(c.getColumnIndex(MyLocations.KEY_LAT)), c.getInt(c.getColumnIndex(MyLocations.KEY_LON))));
		rowID.add(new Integer(c.getInt(c.getColumnIndex(MyLocations.KEY_ROWID))));
		stopid.add(new Integer(c.getInt(c.getColumnIndex("stopid"))));
		c.moveToNext();
	}
	
	c.close();
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
public void requerry()
{
	//if (!locations.isOpen()) return;
	adapter.clear();
	loc.clear();
	rowID.clear();
	stopid.clear();
	Cursor c = locations.getAllLocations();
	c.moveToFirst();
	while (!c.isAfterLast())
	{
		adapter.add(c.getString(c.getColumnIndex(MyLocations.KEY_NAME)));
		loc.add(new GeoPoint(c.getInt(c.getColumnIndex(MyLocations.KEY_LAT)), c.getInt(c.getColumnIndex(MyLocations.KEY_LON))));
		rowID.add(new Integer(c.getInt(c.getColumnIndex(MyLocations.KEY_ROWID))));
		stopid.add(new Integer(c.getInt(c.getColumnIndex("stopid"))));
		c.moveToNext();
	}
	
	c.close();
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
void try_fetch(int routeid) throws Exception {
        ArrayList<BusOverlay.BusLocation> bus_locs = new ArrayList<BusOverlay.BusLocation>();
        JSONObject result = rpc(routeid);
        if (result.isNull("d")) {
            return;
        }
        JSONArray vehicles = result.getJSONArray("d");
        for (int i = 0; i < vehicles.length(); i++) {
            JSONObject vehicle = vehicles.getJSONObject(i);
            double lat = vehicle.getDouble("lat");
            double lng = vehicle.getDouble("lon");
            int heading = vehicle.getInt("heading");
            
            BusOverlay.BusLocation bus_loc = new BusOverlay.BusLocation();
            bus_loc.loc = new GeoPoint(
                    (int) (lat*1E6),
                    (int) (lng*1E6));
            bus_loc.heading = heading;
            bus_locs.add(bus_loc);
            
        }
        publishProgress(bus_locs);
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
private void updateWithNewLocation(Location location) {
	// Update the map position and overlay
	if (location != null) {
		// Update my location marker
	    mapView.invalidate();

	    // Update the map location.
	    Double geoLat = location.getLatitude()*1E6;
	    Double geoLng = location.getLongitude()*1E6;
	    p = new GeoPoint(geoLat.intValue(), geoLng.intValue());

	    if(first_time == true) {
	    	mc.animateTo(p);
	    	mc.setZoom(17);
	    	first_time = false;
	    }
	}
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);

    MapView mapView = (MapView) findViewById(R.id.mapview);
    mapView.setBuiltInZoomControls(true);

    /**
     * To show a map of San Francisco, we need to create a geo point object
     * with longitude and latitude in center of SF.
     */
    GeoPoint point = new GeoPoint(37779300, -122419200);

    /**
     * MapController is needed to set view location and zooming.
     */
    MapController mc = mapView.getController();
    mc.setCenter(point);
    mc.setZoom(14);
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
private void setLocText(final GeoPoint gp, final boolean change) {
    pHandler.removeCallbacks(prevRunnable);
    prevRunnable = new Runnable() {
        @Override
        public void run() {
            final String ftext =  mFormatUtil.getLocText(gp);
            runOnUiThread(new Runnable() {
                public void run() {
                    if (change) {
                        locText.setText(ftext);
                    } else {
                        ((TextView) locText.getCurrentView())
                                .setText(ftext);
                    }
                }
            });
        }
    };

    pHandler.postDelayed(prevRunnable, 20);

}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    
    if(requestCode ==  REQUEST_BOOKMARK_LIST && resultCode == Activity.RESULT_OK){
        int lat = data.getIntExtra("lat", 0);
        int lon = data.getIntExtra("lon", 0);
        final GeoPoint gp = new GeoPoint(lat,lon);
        mMapView.getController().animateTo(gp, new Runnable() {
            public void run() {
                mPin.setPosition(gp);
            }
        });
    }
    
    
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
public String getLocCopy(GeoPoint gp) {
    MessageFormat formatter = new MessageFormat("{0}, {1}");
    String result;
    
    
    if (mGeoFormat == FORMAT_DEGREES_MINUTES_SECONDS) {
        result = formatter.format(new Object[] {
                FormatUtil.getFormatedLat(gp.getLatitudeE6()),
                FormatUtil.getFormatedLon(gp.getLongitudeE6())});
    } else {
        DecimalFormat df = new DecimalFormat("###.######");
        String latStr = df.format(gp.getLatitudeE6() / 1e6D);
        String lonStr = df.format(gp.getLongitudeE6() / 1e6D);
        result = formatter.format(new Object[] {latStr, lonStr});
    }

    return result;
}
 

import com.google.android.maps.GeoPoint; //導入依賴的package包/類
@Override
public void addMarker(final Marker aMarker) {
	if (mItemizedOverlay == null) {
		mItemizedOverlay = new GoogleItemizedOverlay(mMapView.getContext().getResources().getDrawable(R.drawable.marker_default));
		mMapView.getOverlays().add(mItemizedOverlay);
	}
	final OverlayItem item = new OverlayItem(new GeoPoint((int)(aMarker.latitude*1E6), (int)(aMarker.longitude*1E6)), aMarker.title, aMarker.snippet);
	if (aMarker.bitmap != null || aMarker.icon != 0) {
		final Drawable drawable = aMarker.bitmap != null
		? new BitmapDrawable(mMapView.getResources(), aMarker.bitmap)
		: mMapView.getResources().getDrawable(aMarker.icon);
		if (aMarker.anchor == Marker.Anchor.CENTER) {
			GoogleItemizedOverlay.setOverlayMarkerCentered(item, drawable);
		} else {
			item.setMarker(drawable);
	}}
	mItemizedOverlay.addOverlay(item);
}