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MBTiles vector tile source (#740)

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Support offline vector maps (MBTiles, MVT, gzipped pbf)
This commit is contained in:
Konstantinos Tzounopoulos
2019-09-07 22:18:33 +02:00
committed by Emux
parent 83aed13683
commit a9e18a2add
17 changed files with 606 additions and 168 deletions
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15
vtm-android-example/src/org/oscim/android/test/MBTilesBitmapTileActivity.java → vtm-android-example/src/org/oscim/android/test/MBTilesBitmapActivity.java
View File

@@ -1,6 +1,7 @@
/*
* Copyright 2019 Andrea Antonello
* Copyright 2019 devemux86
* Copyright 2019 Kostas Tzounopoulos
*
* 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
@@ -19,6 +20,7 @@ import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import org.oscim.android.tiling.source.mbtiles.MBTilesBitmapTileSource;
import org.oscim.android.tiling.source.mbtiles.MBTilesTileSource;
import org.oscim.core.BoundingBox;
import org.oscim.core.MapPosition;
import org.oscim.core.Tile;
@@ -27,19 +29,19 @@ import org.oscim.layers.tile.bitmap.BitmapTileLayer;
import java.io.File;
/**
* An example activity making use of MBTiles.
* An example activity making use of raster MBTiles.
*/
public class MBTilesBitmapTileActivity extends BitmapTileActivity {
public class MBTilesBitmapActivity extends BitmapTileActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
File file = new File(getExternalFilesDir(null), "test.mbtiles");
File file = new File(getExternalFilesDir(null), "raster.mbtiles");
if (!file.exists()) {
AlertDialog.Builder builder = new AlertDialog.Builder(this)
.setTitle(R.string.warning)
.setMessage(R.string.startup_message_mbtiles)
.setMessage(getResources().getString(R.string.startup_message_mbtiles, file.getName(), file.getAbsolutePath()))
.setPositiveButton(R.string.exit, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
@@ -50,7 +52,8 @@ public class MBTilesBitmapTileActivity extends BitmapTileActivity {
return;
}
MBTilesBitmapTileSource tileSource = new MBTilesBitmapTileSource(file.getAbsolutePath(), 128, null);
MBTilesTileSource tileSource = new MBTilesBitmapTileSource(file.getAbsolutePath(), 128, null);
BitmapTileLayer bitmapLayer = new BitmapTileLayer(mMap, tileSource);
mMap.layers().add(bitmapLayer);
@@ -58,7 +61,7 @@ public class MBTilesBitmapTileActivity extends BitmapTileActivity {
MapPosition pos = new MapPosition();
mMap.getMapPosition(pos);
if (pos.x == 0.5 && pos.y == 0.5) {
BoundingBox bbox = tileSource.getBounds();
BoundingBox bbox = tileSource.getDataSource().getBounds();
if (bbox != null) {
pos.setByBoundingBox(bbox, Tile.SIZE * 4, Tile.SIZE * 4);
mMap.setMapPosition(pos);

93
vtm-android-example/src/org/oscim/android/test/MBTilesMvtActivity.java Normal file
View File

@@ -0,0 +1,93 @@
/*
* Copyright 2019 Andrea Antonello
* Copyright 2019 devemux86
* Copyright 2019 Kostas Tzounopoulos
*
* 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.android.test;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import org.oscim.android.mvt.tiling.source.mbtiles.MBTilesMvtTileSource;
import org.oscim.android.tiling.source.mbtiles.MBTilesTileSource;
import org.oscim.android.tiling.source.mbtiles.MBTilesUnsupportedException;
import org.oscim.core.BoundingBox;
import org.oscim.core.MapPosition;
import org.oscim.core.Tile;
import org.oscim.layers.tile.buildings.BuildingLayer;
import org.oscim.layers.tile.vector.VectorTileLayer;
import org.oscim.layers.tile.vector.labeling.LabelLayer;
import org.oscim.theme.VtmThemes;
import java.io.File;
/**
* An example activity making use of vector MBTiles.
*/
public class MBTilesMvtActivity extends MapActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
File file = new File(getExternalFilesDir(null), "vector.mbtiles");
if (!file.exists()) {
AlertDialog.Builder builder = new AlertDialog.Builder(this)
.setTitle(R.string.warning)
.setMessage(getResources().getString(R.string.startup_message_mbtiles, file.getName(), file.getAbsolutePath()))
.setPositiveButton(R.string.exit, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
builder.show();
return;
}
MBTilesTileSource tileSource;
try {
tileSource = new MBTilesMvtTileSource(file.getAbsolutePath(), "en");
} catch (MBTilesUnsupportedException e) {
AlertDialog.Builder builder = new AlertDialog.Builder(this)
.setTitle(R.string.warning)
.setMessage(e.getMessage())
.setPositiveButton(R.string.exit, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
builder.show();
return;
}
VectorTileLayer l = mMap.setBaseMap(tileSource);
mMap.setTheme(VtmThemes.OPENMAPTILES);
mMap.layers().add(new BuildingLayer(mMap, l));
mMap.layers().add(new LabelLayer(mMap, l));
/* set initial position on first run */
MapPosition pos = new MapPosition();
mMap.getMapPosition(pos);
if (pos.x == 0.5 && pos.y == 0.5) {
BoundingBox bbox = tileSource.getDataSource().getBounds();
if (bbox != null) {
pos.setByBoundingBox(bbox, Tile.SIZE * 4, Tile.SIZE * 4);
mMap.setMapPosition(pos);
}
}
}
}

4
vtm-android-example/src/org/oscim/android/test/Samples.java
View File

@@ -9,6 +9,7 @@
* Copyright 2018 boldtrn
* Copyright 2018-2019 Gustl22
* Copyright 2019 Andrea Antonello
* Copyright 2019 Kostas Tzounopoulos
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
@@ -88,6 +89,7 @@ public class Samples extends Activity {
linearLayout.addView(createLabel(null));
linearLayout.addView(createButton(SimpleMapActivity.class));
linearLayout.addView(createButton(MapsforgeActivity.class));
linearLayout.addView(createButton(MBTilesMvtActivity.class));
linearLayout.addView(createButton(MapilionMvtActivity.class));
/*linearLayout.addView(createButton(MapzenMvtActivity.class));
linearLayout.addView(createButton(MapzenGeojsonActivity.class));
@@ -114,7 +116,7 @@ public class Samples extends Activity {
linearLayout.addView(createLabel("Raster Maps"));
linearLayout.addView(createButton(BitmapTileActivity.class));
linearLayout.addView(createButton(MBTilesBitmapTileActivity.class));
linearLayout.addView(createButton(MBTilesBitmapActivity.class));
linearLayout.addView(createLabel("Overlays"));
linearLayout.addView(createButton(MarkerOverlayActivity.class));