Add a heatmap to an indoor map
Add a heatmap to an indoor map. Zoom in and out to view the heatmap at differing densities.
package com.eegeo.apisamples;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.widget.RelativeLayout;
import com.eegeo.indoors.IndoorMapView;
import com.eegeo.mapapi.EegeoApi;
import com.eegeo.mapapi.EegeoMap;
import com.eegeo.mapapi.MapView;
import com.eegeo.mapapi.camera.CameraPosition;
import com.eegeo.mapapi.camera.CameraUpdateFactory;
import com.eegeo.mapapi.geometry.WeightedLatLngAlt;
import com.eegeo.mapapi.map.OnInitialStreamingCompleteListener;
import com.eegeo.mapapi.map.OnMapReadyCallback;
import com.eegeo.mapapi.heatmaps.Heatmap;
import com.eegeo.mapapi.heatmaps.HeatmapOptions;
import com.eegeo.mapapi.polygons.PolygonOptions;
import java.util.ArrayList;
import java.util.List;
public class AddHeatmapIndoorsActivity extends WrldExampleActivity {
private MapView m_mapView;
private EegeoMap m_eegeoMap = null;
private IndoorMapView m_indoorMapView = null;
private Heatmap m_heatmap = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
EegeoApi.init(this, getString(R.string.eegeo_api_key));
setLockedOrientation();
setContentView(R.layout.add_heatmap_indoors_activity);
m_mapView = (MapView) findViewById(R.id.add_heatmap_indoors_mapview);
m_mapView.onCreate(savedInstanceState);
m_mapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(final EegeoMap map) {
m_eegeoMap = map;
RelativeLayout uiContainer = (RelativeLayout) findViewById(R.id.eegeo_ui_container);
m_indoorMapView = new IndoorMapView(m_mapView, uiContainer, m_eegeoMap);
map.addInitialStreamingCompleteListener(new OnInitialStreamingCompleteListener() {
@Override
public void onInitialStreamingComplete() {
CameraPosition position = new CameraPosition.Builder()
.target(56.460075, -2.978326)
.indoor("westport_house", 2)
.zoom(19)
.build();
map.moveCamera(CameraUpdateFactory.newCameraPosition(position));
}
});
m_heatmap = m_eegeoMap.addHeatmap(
new HeatmapOptions()
.polygon(new PolygonOptions().indoor("westport_house", 2))
.add(getExampleOccupancyPerDayData())
.weightMin(2.0)
.weightMax(8.0)
// sets normative value to be mid-point between weightMin and weightMax,
// to align with transparent mid-point of color gradient
.intensityBias(0.5f)
.interpolateDensityByZoom(18.5, 21.0)
.addDensityStop(0.0f, 0.6, 1.0)
.addDensityStop(0.5f, 1.3, 0.75)
.addDensityStop(1.0f, 2.1, 0.5)
.gradient(
// transparent at mid-point, with differing hues either side,
// suitable for diverging data set. Similar to:
// http://colorbrewer2.org/#type=diverging&scheme=RdYlBu&n=6
new float[]{0.f, 0.1f, 0.4f, 0.49f, 0.51f, 0.6f, 0.9f, 1.f},
new int[]{0x4575b4ff, 0x91bfdbff, 0xe0f3f8ff, 0xffffff00, 0xffffff00, 0xfee090ff, 0xfc8d59ff, 0xd73027ff})
.opacity(0.8f)
);
}
});
}
@Override
protected void onResume() {
super.onResume();
m_mapView.onResume();
}
@Override
protected void onPause() {
super.onPause();
m_mapView.onPause();
}
@Override
protected void onDestroy() {
super.onDestroy();
m_eegeoMap.removeHeatmap(m_heatmap);
m_mapView.onDestroy();
}
private void setLockedOrientation() {
if (getResources().getBoolean(R.bool.is_large_device)) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
} else {
// force portrait on phone
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
}
private WeightedLatLngAlt[] getExampleOccupancyPerDayData() {
WeightedLatLngAlt[] points = new WeightedLatLngAlt[] {
new WeightedLatLngAlt(56.460035, -2.978334, 7.78),
new WeightedLatLngAlt(56.459999, -2.978309, 0.0),
new WeightedLatLngAlt(56.460003, -2.978280, 8.2),
new WeightedLatLngAlt(56.459990, -2.978305, 7.91),
new WeightedLatLngAlt(56.459994, -2.978276, 7.36),
new WeightedLatLngAlt(56.459960, -2.978294, 0.0),
new WeightedLatLngAlt(56.459963, -2.978265, 7.89),
new WeightedLatLngAlt(56.459951, -2.978290, 7.57),
new WeightedLatLngAlt(56.459954, -2.978261, 7.84),
new WeightedLatLngAlt(56.459918, -2.978280, 8.01),
new WeightedLatLngAlt(56.459921, -2.978250, 7.72),
new WeightedLatLngAlt(56.459909, -2.978276, 0.0),
new WeightedLatLngAlt(56.459912, -2.978246, 0.0),
new WeightedLatLngAlt(56.459883, -2.978266, 7.42),
new WeightedLatLngAlt(56.459886, -2.978237, 7.9),
new WeightedLatLngAlt(56.459874, -2.978262, 0.0),
new WeightedLatLngAlt(56.459877, -2.978233, 0.0),
new WeightedLatLngAlt(56.459851, -2.978255, 7.68),
new WeightedLatLngAlt(56.459855, -2.978225, 0.0),
new WeightedLatLngAlt(56.459843, -2.978250, 0.0),
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new WeightedLatLngAlt(56.459849, -2.978172, 0.0),
new WeightedLatLngAlt(56.459858, -2.978176, 0.0),
new WeightedLatLngAlt(56.459897, -2.978170, 9.56),
new WeightedLatLngAlt(56.459906, -2.978174, 0.0),
new WeightedLatLngAlt(56.459909, -2.978145, 7.52),
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new WeightedLatLngAlt(56.459941, -2.978168, 0.99),
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};
return points;
}
}