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James B. Pollack 2015-12-05 16:16:58 -08:00
parent 3b6cd4c2d1
commit 1f2d726211
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110
examples/data_visualization/earthquakes_live.js
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@ -1,44 +1,49 @@
//earthquakes_live.js
//created by james b. pollack @imgntn on 12/5/2015
// earthquakes_live.js
// exploratory implementation in prep for abstract latlong to earth graphing tool for VR
// shows all of the quakes in the past 24 hours reported by the USGS
// created by james b. pollack @imgntn on 12/5/2015
// working notes: maybe try doing markers as boxes,rotated to the sphere normal, and with the height representing some value
Script.include('../libraries/promise.js');
var Promise = loadPromise();
Script.include('../libraries/tinyColor.js');
var tinyColor = loadTinyColor();
var EARTH_SPHERE_RADIUS = 5;
//you could make it the size of the actual earth.
var EARTH_SPHERE_RADIUS = 6371;
var EARTH_SPHERE_RADIUS = 2;
var EARTH_CENTER_POSITION = Vec3.sum(MyAvatar.position, {
x: 5,
x: 0,
y: 0,
z: 0
});
var EARTH_MODEL_URL='http://public.highfidelity.io/marketplace/hificontent/Scripts/planets/planets/earth.fbx';
var EARTH_MODEL_URL = 'http://hifi-content.s3.amazonaws.com/james/earthquakes_live/models/earth-noclouds.fbx';
var POLL_FOR_CHANGES = false;
//USGS updates the data every five minutes
var CHECK_QUAKE_FREQUENCY = 300 * 1000;
var CHECK_QUAKE_FREQUENCY = 5 * 60 * 1000;
var QUAKE_MARKER_DIMENSIONS = {
x: 0.1,
y: 0.1,
z: 0.1
x: 0.01,
y: 0.01,
z: 0.01
};
function createEarth() {
var earthProperties = {
name: 'Earth',
type: 'Model',
modelURL:EARTH_MODEL_URL,
modelURL: EARTH_MODEL_URL,
position: EARTH_CENTER_POSITION,
dimensions: {
x: EARTH_SPHERE_RADIUS,
y: EARTH_SPHERE_RADIUS,
z: EARTH_SPHERE_RADIUS
},
// color: {
// red: 0,
// green: 100,
// blue: 150
// },
rotation: Quat.fromPitchYawRollDegrees(0, 90, 0),
collisionsWillMove: false,
userData: JSON.stringify({
grabbableKey: {
@ -50,26 +55,32 @@ function createEarth() {
return Entities.addEntity(earthProperties)
}
function plotLatitudeLongitude(radiusOfSphere, latitude, longitude) {
var tx = radiusOfSphere * Math.cos(latitude) * Math.cos(longitude);
var ty = radiusOfSphere * -Math.sin(latitude);
var tz = radiusOfSphere * Math.cos(latitude) * Math.sin(longitude);
function latLongToVector3(lat, lon, radius, height) {
var phi = (lat) * Math.PI / 180;
var theta = (lon - 180) * Math.PI / 180;
var x = -(radius + height) * Math.cos(phi) * Math.cos(theta);
var y = (radius + height) * Math.sin(phi);
var z = (radius + height) * Math.cos(phi) * Math.sin(theta);
return {
x: tx,
y: ty,
z: tz
}
x: x,
y: y,
z: z
};
}
function getQuakePosition(earthquake) {
var latitude = earthquake.geometry.coordinates[0];
var longitude = earthquake.geometry.coordinates[1];
var latlng = plotLatitudeLongitude(2.5, latitude, longitude);
var longitude = earthquake.geometry.coordinates[0];
var latitude = earthquake.geometry.coordinates[1];
var depth = earthquake.geometry.coordinates[2];
var latlng = latLongToVector3(latitude, longitude, EARTH_SPHERE_RADIUS / 2, 0);
var position = EARTH_CENTER_POSITION;
var finalPosition = Vec3.sum(position, latlng);
// print('finalpos::' + JSON.stringify(finalPosition))
print('finalpos::' + JSON.stringify(finalPosition))
return finalPosition
}
@ -95,14 +106,9 @@ function get(url) {
});
}
function showEarthquake(snapshot) {
var earthquake = snapshot.val();
print("Mag " + earthquake.mag + " at " + earthquake.place);
}
function createQuakeMarker(earthquake) {
var markerProperties = {
name: 'Marker',
name: earthquake.properties.place,
type: 'Sphere',
dimensions: QUAKE_MARKER_DIMENSIONS,
position: getQuakePosition(earthquake),
@ -110,7 +116,7 @@ function createQuakeMarker(earthquake) {
color: getQuakeMarkerColor(earthquake)
}
//print('marker properties::' + JSON.stringify(markerProperties))
print('marker properties::' + JSON.stringify(markerProperties))
return Entities.addEntity(markerProperties);
}
@ -137,7 +143,7 @@ function scale(value, min1, max1, min2, max2) {
function processQuakes(earthquakes) {
print('quakers length' + earthquakes.length)
earthquakes.forEach(function(quake) {
// print('PROCESSING A QUAKE')
// print('PROCESSING A QUAKE')
var marker = createQuakeMarker(quake);
markers.push(marker);
})
@ -147,16 +153,18 @@ function processQuakes(earthquakes) {
var quakea;
var markers = [];
var earth = createEarth();
var earth = createEarth();
get(QUAKE_URL).then(function(response) {
print('got it::' + response.features.length)
quakes = response.features;
processQuakes(quakes);
//print("Success!" + JSON.stringify(response));
}, function(error) {
print('error getting quakes')
});
function getThenProcessQuakes() {
get(QUAKE_URL).then(function(response) {
print('got it::' + response.features.length)
quakes = response.features;
processQuakes(quakes);
//print("Success!" + JSON.stringify(response));
}, function(error) {
print('error getting quakes')
});
}
function cleanupMarkers() {
print('CLEANING UP MARKERS')
@ -170,4 +178,16 @@ function cleanupEarth() {
}
Script.scriptEnding.connect(cleanupMarkers);
Script.scriptEnding.connect(cleanupEarth);
Script.scriptEnding.connect(cleanupEarth);
//first draw
getThenProcessQuakes();
var pollingInterval;
if (POLL_FOR_CHANGES === true) {
pollingInterval = Script.setInterval(function() {
cleanupMarkers();
getThenProcessQuakes()
}, CHECK_QUAKE_FREQUENCY)
}