Marker clustering improvements #312

2017-03-04 17:17:24 +02:00
parent 4b30ca3242
commit 28961caa79
4 changed files with 141 additions and 49 deletions
--- a/vtm-playground/src/org/oscim/test/ClusterMarkerLayerTest.java
+++ b/vtm-playground/src/org/oscim/test/ClusterMarkerLayerTest.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2016-2017 devemux86
+ * Copyright 2017 nebular
+ *
+ * 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.test;
+
+import org.oscim.backend.CanvasAdapter;
+import org.oscim.backend.canvas.Bitmap;
+import org.oscim.backend.canvas.Color;
+import org.oscim.core.GeoPoint;
+import org.oscim.gdx.GdxMapApp;
+import org.oscim.layers.TileGridLayer;
+import org.oscim.layers.marker.ClusterMarkerRenderer;
+import org.oscim.layers.marker.ItemizedLayer;
+import org.oscim.layers.marker.MarkerItem;
+import org.oscim.layers.marker.MarkerSymbol;
+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 org.oscim.tiling.source.oscimap4.OSciMap4TileSource;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ClusterMarkerLayerTest extends MarkerLayerTest {
+
+    private static final int COUNT = 5;
+    private static final float STEP = 100f / 110000f; // roughly 100 meters
+
+    @Override
+    public void createLayers() {
+        // Map events receiver
+        mMap.layers().add(new MapEventsReceiver(mMap));
+
+        VectorTileLayer l = mMap.setBaseMap(new OSciMap4TileSource());
+        mMap.layers().add(new BuildingLayer(mMap, l));
+        mMap.layers().add(new LabelLayer(mMap, l));
+        mMap.setTheme(VtmThemes.DEFAULT);
+
+        mMap.setMapPosition(53.08, 8.83, 1 << 15);
+
+        Bitmap bitmapPoi = CanvasAdapter.decodeBitmap(getClass().getResourceAsStream("/res/marker_poi.png"));
+        MarkerSymbol symbol;
+        if (BILLBOARDS)
+            symbol = new MarkerSymbol(bitmapPoi, MarkerSymbol.HotspotPlace.BOTTOM_CENTER);
+        else
+            symbol = new MarkerSymbol(bitmapPoi, MarkerSymbol.HotspotPlace.CENTER, false);
+
+        mMarkerLayer = new ItemizedLayer<>(
+                mMap,
+                new ArrayList<MarkerItem>(),
+                ClusterMarkerRenderer.factory(symbol, new ClusterMarkerRenderer.ClusterStyle(Color.WHITE, Color.BLUE)),
+                this);
+        mMap.layers().add(mMarkerLayer);
+
+        // Create some markers spaced STEP degrees
+        List<MarkerItem> pts = new ArrayList<>();
+        GeoPoint center = mMap.getMapPosition().getGeoPoint();
+        for (int x = -COUNT; x < COUNT; x++) {
+            for (int y = -COUNT; y < COUNT; y++) {
+                double random = STEP * Math.random() * 2;
+                MarkerItem item = new MarkerItem(y + ", " + x, "",
+                        new GeoPoint(center.getLatitude() + y * STEP + random, center.getLongitude() + x * STEP + random)
+                );
+                pts.add(item);
+            }
+        }
+        mMarkerLayer.addItems(pts);
+
+        mMap.layers().add(new TileGridLayer(mMap));
+    }
+
+    public static void main(String[] args) {
+        GdxMapApp.init();
+        GdxMapApp.run(new ClusterMarkerLayerTest());
+    }
+}