new BitmapTileLayer implementation

This commit is contained in:
Hannes Janetzek 2014-01-21 02:49:49 +01:00
parent 6e543303c6
commit 9baf5b2b6e
20 changed files with 292 additions and 988 deletions

View File

@ -16,8 +16,8 @@ package org.oscim.android.test;
import org.oscim.android.MapActivity; import org.oscim.android.MapActivity;
import org.oscim.android.MapView; import org.oscim.android.MapView;
import org.oscim.layers.tile.bitmap.BitmapTileLayer; import org.oscim.layers.tile.BitmapTileLayer;
import org.oscim.layers.tile.bitmap.StamenTonerTiles; import org.oscim.tiling.source.bitmap.DefaultSources.OpenStreetMap;
import android.os.Bundle; import android.os.Bundle;
@ -30,8 +30,13 @@ public class BitmapTileMapActivity extends MapActivity {
setContentView(R.layout.activity_map); setContentView(R.layout.activity_map);
mMapView = (MapView) findViewById(R.id.mapView); mMapView = (MapView) findViewById(R.id.mapView);
//registerMapView(mMapView); registerMapView(mMapView);
mMap.getLayers().add(new BitmapTileLayer(mMap, StamenTonerTiles.INSTANCE, 20)); mMap.getLayers().add(new BitmapTileLayer(mMap, new OpenStreetMap(), 20));
//mMap.getLayers().add(new BitmapTileLayer(mMap, new ImagicoLandcover(), 20));
//mMap.getLayers().add(new BitmapTileLayer(mMap, new ArcGISWorldShaded(), 20));
//mMap.getLayers().add(new BitmapTileLayer(mMap, new HillShadeHD(), 20));
mMap.setMapPosition(0, 0, 1 << 2);
} }
} }

View File

@ -24,8 +24,6 @@ import org.oscim.android.MapView;
import org.oscim.backend.canvas.Color; import org.oscim.backend.canvas.Color;
import org.oscim.core.GeoPoint; import org.oscim.core.GeoPoint;
import org.oscim.layers.PathLayer; import org.oscim.layers.PathLayer;
import org.oscim.layers.tile.bitmap.BitmapTileLayer;
import org.oscim.layers.tile.bitmap.StamenTonerTiles;
import android.os.Bundle; import android.os.Bundle;
@ -41,8 +39,6 @@ public class PathOverlayActivity extends MapActivity {
mMapView = (MapView) findViewById(R.id.mapView); mMapView = (MapView) findViewById(R.id.mapView);
registerMapView(mMapView); registerMapView(mMapView);
mMap.getLayers().add(new BitmapTileLayer(mMap, StamenTonerTiles.INSTANCE, 20));
for (double lon = -180; lon < 180; lon += 5) { for (double lon = -180; lon < 180; lon += 5) {
List<GeoPoint> pts = new ArrayList<GeoPoint>(); List<GeoPoint> pts = new ArrayList<GeoPoint>();

View File

@ -21,7 +21,6 @@ import java.nio.Buffer;
import org.oscim.awt.AwtGraphics; import org.oscim.awt.AwtGraphics;
import org.oscim.backend.CanvasAdapter; import org.oscim.backend.CanvasAdapter;
import org.oscim.backend.GLAdapter; import org.oscim.backend.GLAdapter;
import org.oscim.core.MapPosition;
import org.oscim.core.Tile; import org.oscim.core.Tile;
import org.oscim.tiling.source.TileSource; import org.oscim.tiling.source.TileSource;
import org.oscim.tiling.source.oscimap4.OSciMap4TileSource; import org.oscim.tiling.source.oscimap4.OSciMap4TileSource;
@ -33,6 +32,9 @@ import com.badlogic.gdx.backends.lwjgl.LwjglGL20;
import com.badlogic.gdx.utils.SharedLibraryLoader; import com.badlogic.gdx.utils.SharedLibraryLoader;
public class GdxMapApp extends GdxMap { public class GdxMapApp extends GdxMap {
static {
System.setProperty(org.slf4j.impl.SimpleLogger.DEFAULT_LOG_LEVEL_KEY, "TRACE");
}
// wrap LwjglGL20 to add GL20 interface // wrap LwjglGL20 to add GL20 interface
static class GdxGL extends LwjglGL20 implements org.oscim.backend.GL20 { static class GdxGL extends LwjglGL20 implements org.oscim.backend.GL20 {
@ -78,16 +80,16 @@ public class GdxMapApp extends GdxMap {
@Override @Override
public void createLayers() { public void createLayers() {
TileSource tileSource = new OSciMap4TileSource(); TileSource tileSource = new OSciMap4TileSource();
tileSource.setOption("url", "http://opensciencemap.org/tiles/vtm");
// TileSource tileSource = new MapFileTileSource(); // TileSource tileSource = new MapFileTileSource();
// tileSource.setOption("file", "/home/jeff/germany.map"); // tileSource.setOption("file", "/home/jeff/germany.map");
initDefaultLayers(tileSource, false, true, true); initDefaultLayers(tileSource, false, true, true);
MapPosition p = new MapPosition(); //mMap.getLayers().add(new BitmapTileLayer(mMap, new ImagicoLandcover(), 20));
p.setZoomLevel(14); //mMap.getLayers().add(new BitmapTileLayer(mMap, new OSMTileSource(), 20));
p.setPosition(53.08, 8.83); //mMap.getLayers().add(new BitmapTileLayer(mMap, new ArcGISWorldShaded(), 20));
mMap.setMapPosition(p);
mMap.setMapPosition(0, 0, 1 << 2);
} }
} }

View File

@ -22,10 +22,10 @@ import org.oscim.backend.GLAdapter;
import org.oscim.core.MapPosition; import org.oscim.core.MapPosition;
import org.oscim.core.MercatorProjection; import org.oscim.core.MercatorProjection;
import org.oscim.gdx.GdxMap; import org.oscim.gdx.GdxMap;
import org.oscim.layers.tile.bitmap.BitmapTileLayer; import org.oscim.layers.tile.BitmapTileLayer;
import org.oscim.layers.tile.bitmap.NaturalEarth;
import org.oscim.renderer.MapRenderer; import org.oscim.renderer.MapRenderer;
import org.oscim.tiling.source.TileSource; import org.oscim.tiling.source.TileSource;
import org.oscim.tiling.source.bitmap.DefaultSources.NaturalEarth;
import org.oscim.tiling.source.oscimap2.OSciMap2TileSource; import org.oscim.tiling.source.oscimap2.OSciMap2TileSource;
import org.oscim.tiling.source.oscimap4.OSciMap4TileSource; import org.oscim.tiling.source.oscimap4.OSciMap4TileSource;
import org.slf4j.Logger; import org.slf4j.Logger;
@ -116,7 +116,7 @@ class GwtGdxMap extends GdxMap {
initDefaultLayers(tileSource, false, true, true); initDefaultLayers(tileSource, false, true, true);
if ("naturalearth".equals(c.getBackgroundLayer())) if ("naturalearth".equals(c.getBackgroundLayer()))
mMap.setBackgroundMap(new BitmapTileLayer(mMap, NaturalEarth.INSTANCE)); mMap.setBackgroundMap(new BitmapTileLayer(mMap, new NaturalEarth()));
mSearchBox = new SearchBox(mMap); mSearchBox = new SearchBox(mMap);

View File

@ -1,137 +0,0 @@
/*
* Copyright 2013 Hannes Janetzek
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.URL;
import org.oscim.backend.canvas.Bitmap;
import org.oscim.core.MapPosition;
import org.oscim.core.Tile;
import org.oscim.gdx.client.GwtBitmap;
import org.oscim.layers.tile.TileLayer;
import org.oscim.layers.tile.bitmap.TileSource.FadeStep;
import org.oscim.map.Map;
import org.oscim.renderer.elements.BitmapLayer;
import org.oscim.renderer.elements.ElementLayers;
import org.oscim.tiling.MapTile;
import org.oscim.tiling.TileLoader;
import org.oscim.tiling.TileManager;
import org.oscim.utils.FastMath;
import com.google.gwt.event.dom.client.ErrorEvent;
import com.google.gwt.event.dom.client.ErrorHandler;
import com.google.gwt.event.dom.client.LoadEvent;
import com.google.gwt.event.dom.client.LoadHandler;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.RootPanel;
public class BitmapTileLayer extends TileLayer<TileLoader> {
private final static int CACHE_LIMIT = 50;
final TileSource mTileSource;
private final FadeStep[] mFade;
public BitmapTileLayer(Map map, TileSource tileSource) {
this(map, tileSource, CACHE_LIMIT);
}
public BitmapTileLayer(Map map, TileSource tileSource, int cacheLimit) {
super(map, tileSource.getZoomLevelMin(), tileSource.getZoomLevelMax(), cacheLimit);
mTileSource = tileSource;
mFade = mTileSource.getFadeSteps();
}
@Override
public void onMapUpdate(MapPosition pos, boolean changed, boolean clear) {
super.onMapUpdate(pos, changed, clear);
if (mFade == null) {
mRenderLayer.setBitmapAlpha(1);
return;
}
float alpha = 0;
for (FadeStep f : mFade) {
if (pos.scale < f.scaleStart || pos.scale > f.scaleEnd)
continue;
if (f.alphaStart == f.alphaEnd) {
alpha = f.alphaStart;
break;
}
double range = f.scaleEnd / f.scaleStart;
float a = (float) ((range - (pos.scale / f.scaleStart)) / range);
a = FastMath.clamp(a, 0, 1);
// interpolate alpha between start and end
alpha = a * f.alphaStart + (1 - a) * f.alphaEnd;
break;
}
mRenderLayer.setBitmapAlpha(alpha);
}
@Override
protected TileLoader createLoader(TileManager tm) {
return new TileLoader(tm) {
private void loadImage(final MapTile tile, final String url) {
final Image img = new Image(url);
RootPanel.get().add(img);
img.setVisible(false);
img.addLoadHandler(new LoadHandler() {
public void onLoad(LoadEvent event) {
Bitmap bitmap = new GwtBitmap(img);
tile.layers = new ElementLayers();
BitmapLayer l = new BitmapLayer(false);
l.setBitmap(bitmap, Tile.SIZE, Tile.SIZE);
tile.layers.textureLayers = l;
tile.loader.jobCompleted(tile, true);
}
});
img.addErrorHandler(new ErrorHandler() {
@Override
public void onError(ErrorEvent event) {
tile.loader.jobCompleted(tile, false);
}
});
}
@Override
protected boolean executeJob(MapTile tile) {
URL url;
try {
url = mTileSource.getTileUrl(tile);
loadImage(tile, url.toString());
} catch (Exception e) {
e.printStackTrace();
tile.loader.jobCompleted(tile, false);
return false;
}
return false;
}
@Override
public void cleanup() {
}
};
}
}

View File

@ -14,26 +14,23 @@
* You should have received a copy of the GNU Lesser General Public License along with * You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>. * this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
package org.oscim.layers.tile.bitmap; package org.oscim.layers.tile;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.zip.GZIPInputStream;
import org.oscim.backend.CanvasAdapter;
import org.oscim.backend.canvas.Bitmap; import org.oscim.backend.canvas.Bitmap;
import org.oscim.core.MapElement;
import org.oscim.core.MapPosition; import org.oscim.core.MapPosition;
import org.oscim.core.Tile; import org.oscim.core.Tile;
import org.oscim.layers.tile.TileLayer;
import org.oscim.layers.tile.bitmap.TileSource.FadeStep;
import org.oscim.map.Map; import org.oscim.map.Map;
import org.oscim.renderer.elements.BitmapLayer; import org.oscim.renderer.elements.BitmapLayer;
import org.oscim.renderer.elements.ElementLayers; import org.oscim.renderer.elements.ElementLayers;
import org.oscim.tiling.MapTile; import org.oscim.tiling.MapTile;
import org.oscim.tiling.TileLoader; import org.oscim.tiling.TileLoader;
import org.oscim.tiling.TileManager; import org.oscim.tiling.TileManager;
import org.oscim.tiling.source.ITileDataSink;
import org.oscim.tiling.source.ITileDataSource;
import org.oscim.tiling.source.ITileDataSource.QueryResult;
import org.oscim.tiling.source.TileSource;
import org.oscim.tiling.source.bitmap.BitmapTileSource;
import org.oscim.utils.FastMath; import org.oscim.utils.FastMath;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
@ -44,20 +41,27 @@ public class BitmapTileLayer extends TileLayer<TileLoader> {
private final static int CACHE_LIMIT = 50; private final static int CACHE_LIMIT = 50;
private static final int TIMEOUT_CONNECT = 5000; private final BitmapTileSource mTileSource;
private static final int TIMEOUT_READ = 10000;
final TileSource mTileSource; public static class FadeStep {
private final FadeStep[] mFade; public final double scaleStart, scaleEnd;
public final float alphaStart, alphaEnd;
public BitmapTileLayer(Map map, TileSource tileSource) { public FadeStep(int zoomStart, int zoomEnd, float alphaStart, float alphaEnd) {
this.scaleStart = 1 << zoomStart;
this.scaleEnd = 1 << zoomEnd;
this.alphaStart = alphaStart;
this.alphaEnd = alphaEnd;
}
}
public BitmapTileLayer(Map map, BitmapTileSource tileSource) {
this(map, tileSource, CACHE_LIMIT); this(map, tileSource, CACHE_LIMIT);
} }
public BitmapTileLayer(Map map, TileSource tileSource, int cacheLimit) { public BitmapTileLayer(Map map, BitmapTileSource tileSource, int cacheLimit) {
super(map, tileSource.getZoomLevelMin(), tileSource.getZoomLevelMax(), cacheLimit); super(map, tileSource.getZoomLevelMin(), tileSource.getZoomLevelMax(), cacheLimit);
mTileSource = tileSource; mTileSource = tileSource;
mFade = mTileSource.getFadeSteps();
initLoader(); initLoader();
} }
@ -65,13 +69,15 @@ public class BitmapTileLayer extends TileLayer<TileLoader> {
public void onMapUpdate(MapPosition pos, boolean changed, boolean clear) { public void onMapUpdate(MapPosition pos, boolean changed, boolean clear) {
super.onMapUpdate(pos, changed, clear); super.onMapUpdate(pos, changed, clear);
if (mFade == null) { FadeStep[] fade = mTileSource.getFadeSteps();
if (fade == null) {
mRenderLayer.setBitmapAlpha(1); mRenderLayer.setBitmapAlpha(1);
return; return;
} }
float alpha = 0; float alpha = 0;
for (FadeStep f : mFade) { for (FadeStep f : fade) {
if (pos.scale < f.scaleStart || pos.scale > f.scaleEnd) if (pos.scale < f.scaleStart || pos.scale > f.scaleEnd)
continue; continue;
@ -92,47 +98,54 @@ public class BitmapTileLayer extends TileLayer<TileLoader> {
@Override @Override
protected TileLoader createLoader(TileManager tm) { protected TileLoader createLoader(TileManager tm) {
return new TileLoader(tm) { return new BitmapTileLoader(tm, mTileSource);
@Override
protected boolean executeJob(MapTile tile) {
URL url;
try {
url = mTileSource.getTileUrl(tile);
URLConnection urlConnection = getURLConnection(url);
InputStream inputStream = getInputStream(urlConnection);
Bitmap bitmap = CanvasAdapter.g.decodeBitmap(inputStream);
tile.layers = new ElementLayers();
BitmapLayer l = new BitmapLayer(false);
l.setBitmap(bitmap, Tile.SIZE, Tile.SIZE);
tile.layers.textureLayers = l;
} catch (Exception e) {
e.printStackTrace();
return false;
} }
return true; class BitmapTileLoader extends TileLoader implements ITileDataSink {
private final ITileDataSource mTileDataSource;
private MapTile mTile;
public BitmapTileLoader(TileManager tileManager, TileSource tileSource) {
super(tileManager);
mTileDataSource = tileSource.getDataSource();
} }
@Override @Override
public void cleanup() { public void cleanup() {
} }
private InputStream getInputStream(URLConnection urlConnection) throws IOException { @Override
if ("gzip".equals(urlConnection.getContentEncoding())) { protected boolean executeJob(MapTile tile) {
return new GZIPInputStream(urlConnection.getInputStream()); QueryResult result;
try {
mTile = tile;
result = mTileDataSource.executeQuery(tile, this);
} finally {
mTile = null;
} }
return urlConnection.getInputStream(); return result == QueryResult.SUCCESS;
} }
private URLConnection getURLConnection(URL url) throws IOException { @Override
URLConnection urlConnection = url.openConnection(); public void setTileImage(Bitmap bitmap) {
urlConnection.setConnectTimeout(TIMEOUT_CONNECT); BitmapLayer l = new BitmapLayer(false);
urlConnection.setReadTimeout(TIMEOUT_READ); l.setBitmap(bitmap, Tile.SIZE, Tile.SIZE);
return urlConnection; mTile.layers = new ElementLayers();
mTile.layers.textureLayers = l;
} }
};
@Override
public void process(MapElement element) {
}
@Override
public void completed(boolean success) {
} }
} }
}

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@ -1,64 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
public abstract class AbstractTileSource implements TileSource {
protected final String hostName;
protected final int port;
protected AbstractTileSource(String hostName, int port) {
if (hostName == null || hostName.isEmpty()) {
throw new IllegalArgumentException("no host name specified");
} else if (port < 0 || port > 65535) {
throw new IllegalArgumentException("invalid port number: " + port);
}
this.hostName = hostName;
this.port = port;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
} else if (!(obj instanceof AbstractTileSource)) {
return false;
}
AbstractTileSource other = (AbstractTileSource) obj;
if (!this.hostName.equals(other.hostName)) {
return false;
} else if (this.port != other.port) {
return false;
}
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + this.hostName.hashCode();
result = prime * result + this.port;
return result;
}
@Override
public FadeStep[] getFadeSteps() {
return null;
}
}

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@ -1,67 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
//http://server.arcgisonline.com/ArcGIS/rest/services/World_Shaded_Relief/MapServer/tile/5/14/14
//http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer
public class ArcGISWorldShaded extends AbstractTileSource {
public static final ArcGISWorldShaded INSTANCE = new ArcGISWorldShaded("server.arcgisonline.com",
80);
private static final int PARALLEL_REQUESTS_LIMIT = 4;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 6;
private static final int ZOOM_LEVEL_MIN = 0;
public ArcGISWorldShaded(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
//stringBuilder.append("/ArcGIS/rest/services/World_Imagery/MapServer/tile/");
stringBuilder.append("/ArcGIS/rest/services/World_Shaded_Relief/MapServer/tile/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
return new URL(PROTOCOL, this.hostName, this.port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

View File

@ -1,79 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class HillShadeTiles extends AbstractTileSource {
//public static final HillShadeTiles INSTANCE = new HillShadeTiles("toolserver.org", 80);
// from http://openmapsurfer.uni-hd.de/
public static final HillShadeTiles INSTANCE = new HillShadeTiles("129.206.74.245", 8004);
private static final int PARALLEL_REQUESTS_LIMIT = 8;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 18;
private static final int ZOOM_LEVEL_MIN = 2;
public HillShadeTiles(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
//tms_hs.ashx?x=131&y=94&z=8
stringBuilder.append("/tms_hs.ashx?x=");
stringBuilder.append(tile.tileX);
stringBuilder.append("&y=");
stringBuilder.append(tile.tileY);
stringBuilder.append("&z=");
stringBuilder.append(tile.zoomLevel);
//stringBuilder.append("/~cmarqu/hill/");
//stringBuilder.append(tile.zoomLevel);
//stringBuilder.append('/');
//stringBuilder.append(tile.tileX);
//stringBuilder.append('/');
//stringBuilder.append(tile.tileY);
//stringBuilder.append(".png");
return new URL(PROTOCOL, this.hostName, this.port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

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@ -1,65 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class MapQuestAerial extends AbstractTileSource {
public static final MapQuestAerial INSTANCE = new MapQuestAerial("otile1.mqcdn.com", 80);
private static final int PARALLEL_REQUESTS_LIMIT = 8;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 8;
private static final int ZOOM_LEVEL_MIN = 0;
public MapQuestAerial(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
stringBuilder.append("/tiles/1.0.0/sat/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append(".jpg");
return new URL(PROTOCOL, this.hostName, this.port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

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@ -1,77 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class NaturalEarth extends AbstractTileSource {
public static final NaturalEarth INSTANCE = new NaturalEarth("city.informatik.uni-bremen.de",
80);
private static final int PARALLEL_REQUESTS_LIMIT = 4;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 8;
private static final int ZOOM_LEVEL_MIN = 0;
public NaturalEarth(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
stringBuilder.append("/tiles/ne/");
//stringBuilder.append("/osci/ne_image2/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append(".png");
return new URL(PROTOCOL, this.hostName, this.port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
@Override
public FadeStep[] getFadeSteps() {
return new FadeStep[] {
new FadeStep(ZOOM_LEVEL_MIN, ZOOM_LEVEL_MAX - 1, 1, 0.7f),
// dont fade between zoom-min/max
// fade above zoom max + 2, interpolate 1 to 0
new FadeStep(ZOOM_LEVEL_MAX - 1, ZOOM_LEVEL_MAX + 1, 0.7f, 0)
};
}
}

View File

@ -1,77 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class OpenStreetMap extends AbstractTileSource {
public static final OpenStreetMap INSTANCE = new OpenStreetMap(".tile.openstreetmap.org",
80);
private static final int PARALLEL_REQUESTS_LIMIT = 8;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 18;
private static final int ZOOM_LEVEL_MIN = 0;
public OpenStreetMap(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
private char[] subdomains = { 'a', 'b', 'c', 'd' };
private int curDomain = 0;
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
//stringBuilder.append("/osm/osm/");
stringBuilder.append("/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append(".png");
String host;
synchronized (this) {
curDomain = (curDomain++) % 4;
host = subdomains[curDomain] + hostName;
}
return new URL(PROTOCOL, host, port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

View File

@ -1,67 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class OpenStreetMapMapnik extends AbstractTileSource {
public static final OpenStreetMapMapnik INSTANCE = new OpenStreetMapMapnik("tile.openstreetmap.org", 80);
private static final int PARALLEL_REQUESTS_LIMIT = 8;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 18;
private static final int ZOOM_LEVEL_MIN = 0;
public OpenStreetMapMapnik(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
//stringBuilder.append("/osm/osm/");
stringBuilder.append("/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append(".png");
return new URL(PROTOCOL, this.hostName, this.port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

View File

@ -1,80 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class OpenStreetMapTransport extends AbstractTileSource {
//http://tile.thunderforest.com/transport/3/3/3.png
public static final OpenStreetMapTransport INSTANCE =
new OpenStreetMapTransport(".tile.thunderforest.com", 80);
private static final int PARALLEL_REQUESTS_LIMIT = 8;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 18;
private static final int ZOOM_LEVEL_MIN = 0;
public OpenStreetMapTransport(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
private char[] subdomains = { 'a', 'b', 'c', 'd' };
private int curDomain = 0;
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
//stringBuilder.append("/transport/");
stringBuilder.append("/outdoors/");
//stringBuilder.append("/landscape/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append(".png");
String host;
synchronized (this) {
curDomain = (curDomain++) % 4;
host = subdomains[curDomain] + hostName;
}
return new URL(PROTOCOL, host, port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

View File

@ -1,70 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class StamenTonerTiles extends AbstractTileSource {
public static final StamenTonerTiles INSTANCE = new StamenTonerTiles(".tile.stamen.com", 80);
private static final int PARALLEL_REQUESTS_LIMIT = 8;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 16;
private static final int ZOOM_LEVEL_MIN = 0;
public StamenTonerTiles(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
private char[] subdomains = { 'a', 'b', 'c', 'd' };
private int curDomain = 0;
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
stringBuilder.append("/toner/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append(".png");
curDomain = (curDomain++) % 4;
return new URL(PROTOCOL, subdomains[curDomain] + hostName, port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

View File

@ -1,65 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public class StamenWaterTiles extends AbstractTileSource {
public static final StamenWaterTiles INSTANCE = new StamenWaterTiles("tile.stamen.com", 80);
private static final int PARALLEL_REQUESTS_LIMIT = 8;
private static final String PROTOCOL = "http";
private static final int ZOOM_LEVEL_MAX = 16;
private static final int ZOOM_LEVEL_MIN = 0;
public StamenWaterTiles(String hostName, int port) {
super(hostName, port);
}
@Override
public int getParallelRequestsLimit() {
return PARALLEL_REQUESTS_LIMIT;
}
@Override
public URL getTileUrl(Tile tile) throws MalformedURLException {
StringBuilder stringBuilder = new StringBuilder(32);
stringBuilder.append("/watercolor/");
stringBuilder.append(tile.zoomLevel);
stringBuilder.append('/');
stringBuilder.append(tile.tileX);
stringBuilder.append('/');
stringBuilder.append(tile.tileY);
stringBuilder.append(".jpg");
return new URL(PROTOCOL, this.hostName, this.port, stringBuilder.toString());
}
@Override
public byte getZoomLevelMax() {
return ZOOM_LEVEL_MAX;
}
@Override
public byte getZoomLevelMin() {
return ZOOM_LEVEL_MIN;
}
}

View File

@ -1,60 +0,0 @@
/*
* Copyright 2010, 2011, 2012 mapsforge.org
* Copyright 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.layers.tile.bitmap;
import java.net.MalformedURLException;
import java.net.URL;
import org.oscim.core.Tile;
public interface TileSource {
/**
* @return the maximum number of parallel requests which this
* {@code TileSource} supports.
*/
int getParallelRequestsLimit();
/**
* @return the download URL for the given {@code Tile}.
*/
URL getTileUrl(Tile tile) throws MalformedURLException;
/**
* @return the maximum zoom level which this {@code TileSource} supports.
*/
byte getZoomLevelMax();
/**
* @return the minimum zoom level which this {@code TileSource} supports.
*/
byte getZoomLevelMin();
FadeStep[] getFadeSteps();
public class FadeStep {
public final double scaleStart, scaleEnd;
public final float alphaStart, alphaEnd;
public FadeStep(int zoomStart, int zoomEnd, float alphaStart, float alphaEnd) {
this.scaleStart = 1 << zoomStart;
this.scaleEnd = 1 << zoomEnd;
this.alphaStart = alphaStart;
this.alphaEnd = alphaEnd;
}
}
}

View File

@ -24,7 +24,7 @@ import org.oscim.event.Gesture;
import org.oscim.event.GestureDetector; import org.oscim.event.GestureDetector;
import org.oscim.event.MotionEvent; import org.oscim.event.MotionEvent;
import org.oscim.layers.MapEventLayer; import org.oscim.layers.MapEventLayer;
import org.oscim.layers.tile.bitmap.BitmapTileLayer; import org.oscim.layers.tile.BitmapTileLayer;
import org.oscim.layers.tile.vector.VectorTileLayer; import org.oscim.layers.tile.vector.VectorTileLayer;
import org.oscim.renderer.MapRenderer; import org.oscim.renderer.MapRenderer;
import org.oscim.theme.IRenderTheme; import org.oscim.theme.IRenderTheme;
@ -79,7 +79,7 @@ public abstract class Map {
private Set<UpdateListener> mUpdateListenerSet = new LinkedHashSet<UpdateListener>(); private Set<UpdateListener> mUpdateListenerSet = new LinkedHashSet<UpdateListener>();
private UpdateListener[] mUpdateListeners; private UpdateListener[] mUpdateListeners;
protected boolean mClearMap; protected boolean mClearMap = true;
public Map() { public Map() {
mViewport = new Viewport(this); mViewport = new Viewport(this);

View File

@ -0,0 +1,94 @@
package org.oscim.tiling.source.bitmap;
import java.io.IOException;
import java.io.InputStream;
import org.oscim.backend.CanvasAdapter;
import org.oscim.backend.canvas.Bitmap;
import org.oscim.core.Tile;
import org.oscim.layers.tile.BitmapTileLayer.FadeStep;
import org.oscim.tiling.source.ITileDataSink;
import org.oscim.tiling.source.ITileDataSource;
import org.oscim.tiling.source.ITileDecoder;
import org.oscim.tiling.source.common.LwHttp;
import org.oscim.tiling.source.common.UrlTileDataSource;
import org.oscim.tiling.source.common.UrlTileSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class BitmapTileSource extends UrlTileSource {
static final Logger log = LoggerFactory.getLogger(LwHttp.class);
private final int mZoomMin;
private final int mZoomMax;
private final String mFileExtension;
private final String mMimeType;
public BitmapTileSource(String url) {
this(url, 0, 17);
}
public BitmapTileSource(String url, int zoomMin, int zoomMax) {
this(url, zoomMin, zoomMax, "image/png", ".png");
}
public BitmapTileSource(String url, int zoomMin, int zoomMax, String mimeType,
String fileExtension) {
super(url);
mZoomMin = zoomMin;
mZoomMax = zoomMax;
mFileExtension = fileExtension;
mMimeType = mimeType;
}
@Override
public ITileDataSource getDataSource() {
LwHttp conn = new LwHttp(mUrl, mMimeType, mFileExtension, false) {
@Override
protected int formatTilePath(Tile tile, byte[] path, int curPos) {
String p = getTileUrl(tile);
if (p == null)
return super.formatTilePath(tile, path, curPos);
byte[] b = p.getBytes();
System.arraycopy(b, 0, path, curPos, b.length);
return curPos + b.length;
}
};
return new UrlTileDataSource(this, new BitmapTileDecoder(), conn);
}
public int getZoomLevelMax() {
return mZoomMax;
}
public int getZoomLevelMin() {
return mZoomMin;
}
public FadeStep[] getFadeSteps() {
return null;
}
public String getTileUrl(Tile tile) {
return null;
}
public class BitmapTileDecoder implements ITileDecoder {
@Override
public boolean decode(Tile tile, ITileDataSink sink, InputStream is)
throws IOException {
Bitmap bitmap = CanvasAdapter.g.decodeBitmap(is);
if (!bitmap.isValid()) {
log.debug("invalid bitmap");
return false;
}
sink.setTileImage(bitmap);
return true;
}
}
}

View File

@ -0,0 +1,102 @@
package org.oscim.tiling.source.bitmap;
import org.oscim.core.Tile;
import org.oscim.layers.tile.BitmapTileLayer.FadeStep;
public class DefaultSources {
public static class OpenStreetMap extends BitmapTileSource {
public OpenStreetMap() {
super("http://tile.openstreetmap.org", 0, 18);
}
}
public static class OSMTransport extends BitmapTileSource {
public OSMTransport() {
super("http://a.tile.thunderforest.com/transport", 0, 18);
}
}
public static class StamenToner extends BitmapTileSource {
public StamenToner() {
super("http://a.tile.stamen.com/toner", 0, 16);
}
}
public static class StamenWatercolor extends BitmapTileSource {
public StamenWatercolor() {
super("http://a.tile.stamen.com/watercolor", 0, 16);
}
}
public static class ImagicoLandcover extends BitmapTileSource {
public ImagicoLandcover() {
super("http://www.imagico.de/map/tiles/landcover",
0, 6, "image/jpeg", ".jpg");
}
}
public static class MapQuestAerial extends BitmapTileSource {
public MapQuestAerial() {
super("http://otile1.mqcdn.com/tiles/1.0.0/sat",
0, 8, "image/jpeg", ".jpg");
}
@Override
public FadeStep[] getFadeSteps() {
return fadeSteps;
}
}
public static class NaturalEarth extends BitmapTileSource {
public NaturalEarth() {
super("http://opensciencemap.org/tiles/ne", 0, 8);
}
@Override
public FadeStep[] getFadeSteps() {
return fadeSteps;
}
}
public static class ArcGISWorldShaded extends BitmapTileSource {
public ArcGISWorldShaded() {
super("http://server.arcgisonline.com/ArcGIS/rest/services",
0, 6, "image/jpg", "");
}
@Override
public String getTileUrl(Tile tile) {
StringBuilder sb = new StringBuilder(32);
//sb.append("/World_Imagery/MapServer/tile/");
sb.append("/World_Shaded_Relief/MapServer/tile/");
sb.append(tile.zoomLevel);
sb.append('/').append(tile.tileY);
sb.append('/').append(tile.tileX);
return sb.toString();
}
}
public static class HillShadeHD extends BitmapTileSource {
public HillShadeHD() {
super("http://129.206.74.245:8004/tms_hs.ashx",
2, 16, "image/png", "");
}
@Override
public String getTileUrl(Tile tile) {
StringBuilder sb = new StringBuilder(32);
sb.append("?x=").append(tile.tileX);
sb.append("&y=").append(tile.tileY);
sb.append("&z=").append(tile.zoomLevel);
return sb.toString();
}
}
final static FadeStep[] fadeSteps = new FadeStep[] {
new FadeStep(0, 8 - 1, 1, 0.7f),
// dont fade between zoom-min/max
// fade above zoom max + 2, interpolate 1 to 0
new FadeStep(8 - 1, 8 + 1, 0.7f, 0)
};
}