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initial live earthqukes commit
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James B. Pollack
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173
examples/data_visualization/earthquakes_live.js
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173
examples/data_visualization/earthquakes_live.js
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//earthquakes_live.js
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//created by james b. pollack @imgntn on 12/5/2015
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Script.include('../libraries/promise.js');
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var Promise = loadPromise();
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Script.include('../libraries/tinyColor.js');
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var tinyColor = loadTinyColor();
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var EARTH_SPHERE_RADIUS = 5;
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var EARTH_CENTER_POSITION = Vec3.sum(MyAvatar.position, {
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x: 5,
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y: 0,
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z: 0
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});
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var EARTH_MODEL_URL='http://public.highfidelity.io/marketplace/hificontent/Scripts/planets/planets/earth.fbx';
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//USGS updates the data every five minutes
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var CHECK_QUAKE_FREQUENCY = 300 * 1000;
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var QUAKE_MARKER_DIMENSIONS = {
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x: 0.1,
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y: 0.1,
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z: 0.1
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};
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function createEarth() {
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var earthProperties = {
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name: 'Earth',
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type: 'Model',
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modelURL:EARTH_MODEL_URL,
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position: EARTH_CENTER_POSITION,
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dimensions: {
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x: EARTH_SPHERE_RADIUS,
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y: EARTH_SPHERE_RADIUS,
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z: EARTH_SPHERE_RADIUS
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},
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// color: {
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// red: 0,
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// green: 100,
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// blue: 150
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// },
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collisionsWillMove: false,
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userData: JSON.stringify({
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grabbableKey: {
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grabbable: false
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}
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})
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}
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return Entities.addEntity(earthProperties)
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}
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function plotLatitudeLongitude(radiusOfSphere, latitude, longitude) {
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var tx = radiusOfSphere * Math.cos(latitude) * Math.cos(longitude);
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var ty = radiusOfSphere * -Math.sin(latitude);
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var tz = radiusOfSphere * Math.cos(latitude) * Math.sin(longitude);
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return {
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x: tx,
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y: ty,
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z: tz
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}
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}
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function getQuakePosition(earthquake) {
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var latitude = earthquake.geometry.coordinates[0];
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var longitude = earthquake.geometry.coordinates[1];
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var latlng = plotLatitudeLongitude(2.5, latitude, longitude);
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var position = EARTH_CENTER_POSITION;
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var finalPosition = Vec3.sum(position, latlng);
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// print('finalpos::' + JSON.stringify(finalPosition))
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return finalPosition
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}
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var QUAKE_URL = 'http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_day.geojson'
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function get(url) {
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print('getting' + url)
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// Return a new promise.
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return new Promise(function(resolve, reject) {
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// Do the usual XHR stuff
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var req = new XMLHttpRequest();
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req.open('GET', url);
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req.onreadystatechange = function() {
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print('req status:: ' + JSON.stringify(req.status))
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if (req.readyState == 4 && req.status == 200) {
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var myArr = JSON.parse(req.responseText);
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resolve(myArr);
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}
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};
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req.send();
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});
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}
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function showEarthquake(snapshot) {
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var earthquake = snapshot.val();
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print("Mag " + earthquake.mag + " at " + earthquake.place);
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}
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function createQuakeMarker(earthquake) {
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var markerProperties = {
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name: 'Marker',
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type: 'Sphere',
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dimensions: QUAKE_MARKER_DIMENSIONS,
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position: getQuakePosition(earthquake),
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lifetime: 6000,
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color: getQuakeMarkerColor(earthquake)
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}
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//print('marker properties::' + JSON.stringify(markerProperties))
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return Entities.addEntity(markerProperties);
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}
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function getQuakeMarkerColor(earthquake) {
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var color = {};
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var magnitude = earthquake.properties.mag;
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//realistic but will never get full red coloring and will probably be pretty dull for most. must experiment
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var sValue = scale(magnitude, 0, 10, 0, 100);
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var HSL_string = "hsl(0, " + sValue + "%, 50%)"
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var color = tinyColor(HSL_string);
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var finalColor = {
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red: color._r,
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green: color._g,
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blue: color._b
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}
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return finalColor
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}
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function scale(value, min1, max1, min2, max2) {
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return min2 + (max2 - min2) * ((value - min1) / (max1 - min1));
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}
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function processQuakes(earthquakes) {
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print('quakers length' + earthquakes.length)
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earthquakes.forEach(function(quake) {
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// print('PROCESSING A QUAKE')
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var marker = createQuakeMarker(quake);
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markers.push(marker);
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})
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print('markers length:' + markers.length)
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}
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var quakea;
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var markers = [];
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var earth = createEarth();
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get(QUAKE_URL).then(function(response) {
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print('got it::' + response.features.length)
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quakes = response.features;
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processQuakes(quakes);
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//print("Success!" + JSON.stringify(response));
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}, function(error) {
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print('error getting quakes')
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});
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function cleanupMarkers() {
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print('CLEANING UP MARKERS')
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while (markers.length > 0) {
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Entities.deleteEntity(markers.pop());
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}
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}
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function cleanupEarth() {
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Entities.deleteEntity(earth);
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}
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Script.scriptEnding.connect(cleanupMarkers);
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Script.scriptEnding.connect(cleanupEarth);
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153
examples/data_visualization/testQuakes.json
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153
examples/data_visualization/testQuakes.json
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{
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"type": "FeatureCollection",
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"metadata": {
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"generated": 1449347736000,
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"url": "http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.geojson",
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"title": "USGS All Earthquakes, Past Hour",
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"status": 200,
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"api": "1.1.0",
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"count": 4
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},
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"features": [{
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"type": "Feature",
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"properties": {
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"mag": 1.39,
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"place": "17km ESE of Julian, California",
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"time": 1449345604050,
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"updated": 1449345856673,
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"tz": -480,
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"url": "http://earthquake.usgs.gov/earthquakes/eventpage/ci37498832",
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"detail": "http://earthquake.usgs.gov/earthquakes/feed/v1.0/detail/ci37498832.geojson",
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"felt": null,
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"cdi": null,
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"mmi": null,
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"alert": null,
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"status": "automatic",
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"tsunami": 0,
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"sig": 30,
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"net": "ci",
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"code": "37498832",
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"ids": ",ci37498832,",
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"sources": ",ci,",
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"types": ",general-link,geoserve,nearby-cities,origin,phase-data,",
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"nst": 32,
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"dmin": 0.1379,
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"rms": 0.21,
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"gap": 68,
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"magType": "ml",
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"type": "earthquake",
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"title": "M 1.4 - 17km ESE of Julian, California"
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},
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"geometry": {
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"type": "Point",
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"coordinates": [-116.4293333, 33.0301667, 7.84]
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},
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"id": "ci37498832"
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}, {
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"type": "Feature",
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"properties": {
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"mag": 1.12,
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"place": "3km ESE of The Geysers, California",
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"time": 1449344686690,
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"updated": 1449344783260,
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"tz": -480,
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"url": "http://earthquake.usgs.gov/earthquakes/eventpage/nc72564866",
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"detail": "http://earthquake.usgs.gov/earthquakes/feed/v1.0/detail/nc72564866.geojson",
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"felt": null,
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"cdi": null,
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"mmi": null,
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"alert": null,
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"status": "automatic",
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"tsunami": 0,
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"sig": 19,
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"net": "nc",
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"code": "72564866",
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"ids": ",nc72564866,",
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"sources": ",nc,",
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"types": ",general-link,geoserve,nearby-cities,origin,phase-data,",
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"nst": 11,
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"dmin": 0.01342,
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"rms": 0.03,
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"gap": 154,
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"magType": "md",
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"type": "earthquake",
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"title": "M 1.1 - 3km ESE of The Geysers, California"
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},
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"geometry": {
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"type": "Point",
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"coordinates": [-122.7176666, 38.7598343, 1.48]
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},
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"id": "nc72564866"
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}, {
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"type": "Feature",
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"properties": {
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"mag": 1.99,
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"place": "3km SE of The Geysers, California",
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"time": 1449344287500,
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"updated": 1449344383210,
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"tz": -480,
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"url": "http://earthquake.usgs.gov/earthquakes/eventpage/nc72564856",
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"detail": "http://earthquake.usgs.gov/earthquakes/feed/v1.0/detail/nc72564856.geojson",
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"felt": null,
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"cdi": null,
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"mmi": null,
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"alert": null,
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"status": "automatic",
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"tsunami": 0,
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"sig": 61,
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"net": "nc",
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"code": "72564856",
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"ids": ",nc72564856,",
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"sources": ",nc,",
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"types": ",general-link,geoserve,nearby-cities,origin,phase-data,",
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"nst": 13,
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"dmin": 0.01626,
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"rms": 0.02,
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"gap": 72,
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"magType": "md",
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"type": "earthquake",
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"title": "M 2.0 - 3km SE of The Geysers, California"
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},
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"geometry": {
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"type": "Point",
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"coordinates": [-122.7203369, 38.7571678, 0.3]
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},
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"id": "nc72564856"
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}, {
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"type": "Feature",
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"properties": {
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"mag": 2.36,
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"place": "3km ESE of The Geysers, California",
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"time": 1449344196380,
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"updated": 1449344459434,
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"tz": -480,
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"url": "http://earthquake.usgs.gov/earthquakes/eventpage/nc72564836",
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"detail": "http://earthquake.usgs.gov/earthquakes/feed/v1.0/detail/nc72564836.geojson",
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"felt": 0,
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"cdi": 1,
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"mmi": null,
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"alert": null,
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"status": "automatic",
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"tsunami": 0,
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"sig": 86,
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"net": "nc",
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"code": "72564836",
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"ids": ",nc72564836,",
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"sources": ",nc,",
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"types": ",dyfi,focal-mechanism,general-link,geoserve,nearby-cities,origin,phase-data,scitech-link,",
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"nst": 36,
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"dmin": 0.01395,
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"rms": 0.07,
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"gap": 38,
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"magType": "md",
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"type": "earthquake",
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"title": "M 2.4 - 3km ESE of The Geysers, California"
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},
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"geometry": {
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"type": "Point",
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"coordinates": [-122.722168, 38.7598343, 1.21]
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},
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"id": "nc72564836"
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}],
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"bbox": [-122.722168, 33.0301667, 0.3, -116.4293333, 38.7598343, 7.84]
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}
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1155
examples/libraries/tinyColor.js
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1155
examples/libraries/tinyColor.js
Normal file
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