122 lines
4.1 KiB
Java
122 lines
4.1 KiB
Java
/*
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* Copyright 2014 Hannes Janetzek
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* Copyright 2016-2018 devemux86
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*
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* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
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*
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* This program is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.oscim.android.test;
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import android.os.Bundle;
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import android.widget.Toast;
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import org.oscim.backend.CanvasAdapter;
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import org.oscim.backend.canvas.Color;
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import org.oscim.core.MapPosition;
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import org.oscim.event.Event;
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import org.oscim.event.Gesture;
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import org.oscim.event.MotionEvent;
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import org.oscim.layers.vector.PathLayer;
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import org.oscim.map.Map.UpdateListener;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* This is a very INEFFICIENT and somewhat less useful example for how to use
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* PathLayers!
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*/
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public class PathOverlayActivity extends BitmapTileActivity {
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private static final boolean ANIMATION = true;
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private List<PathLayer> mPathLayers = new ArrayList<>();
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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for (double lat = -90; lat <= 90; lat += 5) {
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int c = Color.fade(Color.rainbow((float) (lat + 90) / 180), 0.5f);
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PathLayer pathLayer = new PathLayer(mMap, c, 6 * CanvasAdapter.getScale()) {
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@Override
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public boolean onGesture(Gesture g, MotionEvent e) {
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if (g instanceof Gesture.Tap) {
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if (contains(e.getX(), e.getY())) {
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Toast.makeText(PathOverlayActivity.this, "PathLayer tap\n" + mMap.viewport().fromScreenPoint(e.getX(), e.getY()), Toast.LENGTH_SHORT).show();
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return true;
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}
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}
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return false;
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}
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};
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mMap.layers().add(pathLayer);
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mPathLayers.add(pathLayer);
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}
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if (ANIMATION)
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mMap.events.bind(new UpdateListener() {
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@Override
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public void onMapEvent(Event e, MapPosition mapPosition) {
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//if (e == Map.UPDATE_EVENT) {
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long t = System.currentTimeMillis();
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float pos = t % 20000 / 10000f - 1f;
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createLayers(pos);
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mMap.updateMap(true);
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//}
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}
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});
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else
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createLayers(1);
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}
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@Override
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protected void onResume() {
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super.onResume();
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/* ignore saved position */
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mMap.setMapPosition(0, 0, 1 << 2);
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}
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void createLayers(float pos) {
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int i = 0;
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for (double lat = -90; lat <= 90; lat += 5) {
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double[] packedCoordinates = new double[360 + 2];
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//List<GeoPoint> pts = new ArrayList<>();
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int c = 0;
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for (double lon = -180; lon <= 180; lon += 2) {
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//pts.add(new GeoPoint(lat, lon));
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double longitude = lon;
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double latitude = lat + (pos * 90);
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if (latitude < -90)
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latitude += 180;
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if (latitude > 90)
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latitude -= 180;
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latitude += Math.sin((Math.abs(pos) * (lon / Math.PI)));
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packedCoordinates[c++] = longitude;
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packedCoordinates[c++] = latitude;
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}
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//LineString line = new LineString(factory.create(packedCoordinates, 2), geomFactory);
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//mPathLayers.get(i++).setLineString(line);
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mPathLayers.get(i++).setLineString(packedCoordinates);
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}
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}
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}
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