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movebank-map-demo.html
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<meta http-equiv="Context-Type" content="text/html; charset=US-ASCII">
<html>
<!-- search the text for !! to find the lines that need to be modified to display your map. -->
<body>
<div>
<script type="text/javascript">
var jsonUrl = "https://www.movebank.org/movebank/service/public/json";
var study_id = 16880941; // !! add the Movebank ID for your study, available in the Study Details
var individual_local_identifiers = ['Mary', 'Butterball', 'Schaumboch']; // !! add the exact Animal IDs for the animals in the study that you want to show on the map
var colors = ['#FFFF00', '#0099FF', '#FF00FF']; // !! specify color codes for the list of Animal IDs above, or use "null" to use default colors
// timestamp_start = Date.UTC(2014, 0, 1); // !! enable to limit data display to a time range (note month is from 0 to 11)
// timestamp_end = Date.UTC(2014, 11, 31); // !! enable to limit data display to a time range (note month is from 0 to 11)
// !! timestamp_start and timestamp_end can be made dynamic by using, e.g. "timestamp_start = Date.now()-1000*3600*24*7);" (this would show only locations from the previous week)
var max_events_per_individual = 100; // !! change as you like to show more/fewer locations per individual; note that more locations will slow the time it takes the page to load
</script>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.2/themes/smoothness/jquery-ui.css" />
<style>
.ui-datepicker-trigger {
margin-left: 5px;
margin-top: 8px;
margin-bottom: -3px;
background: transparent;
}
.ui-datepicker {
font-size: 10pt;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js" type="text/javascript"></script>
// Google now requires an API key to use Google maps without a "for development purposes only" watermark. Create an API key (see https://developers.google.com/maps/documentation/javascript/get-api-key) and add it to the line below replacing MY-API-KEY with your key.
<script src="http://maps.googleapis.com/maps/api/js?key=MY-API-KEY&v=3.exp&sensor=false&libraries=visualization,geometry"></script>
<script type="text/javascript">
var data;
google.maps.event.addDomListener(window, 'load', initialize);
function initialize() {
map = new google.maps.Map(document.getElementById('map-canvas'), {
mapTypeId: google.maps.MapTypeId.SATELLITE // !! can change to change the default Google map background
});
movebankLogo = document.createElement('div');
movebankLogo.innerHTML = '<a href="https://www.movebank.org"><img src="http://strd.de/logo_movebank_gmap6.png" height=23px/></a>';
map.controls[google.maps.ControlPosition.RIGHT_BOTTOM].push(movebankLogo);
timeDisplay = document.getElementById("time-display-div");
map.controls[google.maps.ControlPosition.TOP_CENTER].push(timeDisplay);
$.getJSON(jsonUrl + "?callback=?", {
study_id: study_id,
individual_local_identifiers: individual_local_identifiers,
max_events_per_individual : max_events_per_individual,
// timestamp_start: timestamp_start, // !! enable to limit data display to a time range
// timestamp_end: timestamp_end, // !! enable to limit data display to a time range
sensor_type: "gps" // !! change if needed to specify the sensor type to display; options are gps, argos-doppler-shift, solar-geolocator, radio-transmitter, bird-ring, natural-mark
}, function (data0) {
data = data0;
for (i = 0; i < data.individuals.length; i++) {
data.individuals[i].color = colors[i];
}
setBounds();
createMarkers();
createPolylines();
//createPolylines2();
startDate = null;
endDate = null;
for (i = 0; i < data.individuals.length; i++) {
for (j = 0; j < data.individuals[i].locations.length; j++) {
ts = data.individuals[i].locations[j].timestamp;
if (startDate != null) {
startDate = Math.min(startDate, ts);
endDate = Math.max(endDate, ts);
} else {
startDate = ts;
endDate = ts;
}
}
}
$(function () {
maxDate = new Date(endDate);
maxDate = new Date(maxDate.getFullYear(), maxDate.getMonth(), maxDate.getDate() + 1);
$('#time-display').datepicker({
showOn: "button",
buttonImageOnly: true,
buttonImage: "http://www.google.com/help/hc/images/sites_icon_calendar_small.gif",
showButtonPanel: false,
minDate: new Date(startDate),
maxDate: maxDate,
dateFormat: 'yy-mm-dd',
onSelect: function (dateText) {
date = $(this).datepicker('getDate');
t = new Date(date.getTime() + date.getTimezoneOffset() * 60 * 1000).getTime();
for (i = 0; i < data.individuals.length; i++)
showClosestPointInTime(data.individuals[i], t);
$(this).data('datepicker').inline = true;
},
onClose: function() {
$(this).data('datepicker').inline = false;
}
});
$('#time-display').datepicker('setDate', new Date(endDate));
});
for (i = 0; i < data.individuals.length; i++)
showClosestPointInTime(data.individuals[i], endDate);
document.getElementById('time-display').readOnly = true;
document.getElementById('time-display').style.width = 75;
});
function setBounds() {
var bounds = new google.maps.LatLngBounds();
for (i = 0; i < data.individuals.length; i++) {
for (j = 0; j < data.individuals[i].locations.length; j++) {
bounds.extend(new google.maps.LatLng(
data.individuals[i].locations[j].location_lat,
data.individuals[i].locations[j].location_long));
}
}
map.fitBounds(bounds);
}
function showClosestPointInSpace(individual, latLng, snapToPoint) {
var distCurr = 1000 * 1000 * 1000 * 1000;
var indexCurr;
for (j = 0; j < individual.locations.length; j++) {
latLng0 = new google.maps.LatLng(
individual.locations[j].location_lat,
individual.locations[j].location_long);
dist0 = google.maps.geometry.spherical.computeDistanceBetween(
latLng, latLng0);
if (dist0 < distCurr) {
indexCurr = j;
distCurr = dist0;
}
}
if (indexCurr == 0)
indexStart = 1;
else
indexStart = indexCurr - 1;
if (indexCurr == individual.locations.length - 1)
indexEnd = individual.locations.length - 2;
else
indexEnd = indexCurr + 1;
indexClosest = indexCurr;
distCurr = 1000 * 1000 * 1000 * 1000;
for (j = indexStart; j <= indexEnd; j += 2) {
latLng0 = new google.maps.LatLng(
individual.locations[j].location_lat,
individual.locations[j].location_long);
dist0 = google.maps.geometry.spherical.computeDistanceBetween(
latLng, latLng0);
if (dist0 < distCurr) {
indexCurr = j;
distCurr = dist0;
}
}
indexSecondClosest = indexCurr;
if (snapToPoint)
indexSecondClosest = indexClosest;
pointOnLine = getPointClosestToLine(
individual.locations[indexClosest].location_long,
individual.locations[indexClosest].location_lat,
individual.locations[indexSecondClosest].location_long,
individual.locations[indexSecondClosest].location_lat,
latLng.lng(), latLng.lat());
individual.marker.setPosition(new google.maps.LatLng(pointOnLine.y,
pointOnLine.x));
if (individual.marker.getMap() == null)
individual.marker.setMap(map);
latLngClosest = new google.maps.LatLng(
individual.locations[indexClosest].location_lat,
individual.locations[indexClosest].location_long);
distClosest = google.maps.geometry.spherical
.computeDistanceBetween(latLng, latLngClosest);
latLngSecondClosest = new google.maps.LatLng(
individual.locations[indexSecondClosest].location_lat,
individual.locations[indexSecondClosest].location_long);
distSecondClosest = google.maps.geometry.spherical
.computeDistanceBetween(latLng, latLngSecondClosest);
t = (individual.locations[indexClosest].timestamp * distSecondClosest + individual.locations[indexSecondClosest].timestamp * distClosest) / (distClosest + distSecondClosest);
individual.marker.timestamp = t;
for (i = 0; i < data.individuals.length; i++)
if (data.individuals[i] != individual)
showClosestPointInTime(data.individuals[i], t);
$('#time-display').datepicker('setDate', new Date(t));
}
function getPointClosestToLine(x1, y1, x2, y2, x3, y3) {
dx = x2 - x1;
dy = y2 - y1;
if ((dx == 0) && (dy == 0)) {
x0 = x1;
y0 = y1;
} else {
t = ((x3 - x1) * dx + (y3 - y1) * dy) / (dx * dx + dy * dy);
t = Math.min(Math.max(0, t), 1);
x0 = x1 + t * dx;
y0 = y1 + t * dy;
}
return {
x: x0,
y: y0
};
}
function formatTimestamp(timestamp) {
var date = new Date(timestamp);
var ss = date.getSeconds();
var mi = date.getMinutes();
var hh = date.getHours();
var dd = date.getDate();
var mm = date.getMonth() + 1;
var yyyy = date.getFullYear();
if (ss < 10) {
ss = '0' + ss;
}
if (mi < 10) {
mi = '0' + mi;
}
if (hh < 10) {
hh = '0' + hh;
}
if (dd < 10) {
dd = '0' + dd;
}
if (mm < 10) {
mm = '0' + mm;
}
return yyyy + "-" + mm + "-" + dd + " " + hh + ":" + mi + ":" + ss;
}
function formatDate(timestamp) {
var date = new Date(timestamp);
var dd = date.getDate();
var mm = date.getMonth() + 1;
var yyyy = date.getFullYear();
if (dd < 10) {
dd = '0' + dd;
}
if (mm < 10) {
mm = '0' + mm;
}
return yyyy + "-" + mm + "-" + dd;
}
function showClosestPointInTime(individual, t) {
var distCurr = 1000 * 1000 * 1000 * 1000;
var indexCurr;
for (j = 0; j < individual.locations.length; j++) {
dist0 = Math.abs(t - individual.locations[j].timestamp);
if (dist0 < distCurr) {
indexCurr = j;
distCurr = dist0;
}
}
if (indexCurr == 0)
indexStart = 1;
else
indexStart = indexCurr - 1;
if (indexCurr == individual.locations.length - 1)
indexEnd = individual.locations.length - 2;
else
indexEnd = indexCurr + 1;
indexClosest = indexCurr;
distClosest = distCurr;
distCurr = 1000 * 1000 * 1000;
for (j = indexStart; j <= indexEnd; j += 2) {
dist0 = Math.abs(t - individual.locations[j].timestamp);
if (dist0 < distCurr) {
indexCurr = j;
distCurr = dist0;
}
}
indexSecondClosest = indexCurr;
distSecondClosest = distCurr;
x0 = individual.locations[indexClosest].location_long;
y0 = individual.locations[indexClosest].location_lat;
x1 = individual.locations[indexSecondClosest].location_long;
y1 = individual.locations[indexSecondClosest].location_lat;
x = (x0 * distSecondClosest + x1 * distClosest) / (distClosest + distSecondClosest);
y = (y0 * distSecondClosest + y1 * distClosest) / (distClosest + distSecondClosest);
individual.marker.setPosition(new google.maps.LatLng(y, x));
individual.marker.timestamp = t;
if (individual.marker.getMap() == null)
individual.marker.setMap(map);
gracePeriod = 1000 * 60 * 60 * 24 * 2;
if (t + gracePeriod < individual.locations[0].timestamp || t - gracePeriod > individual.locations[individual.locations.length - 1].timestamp)
individual.marker.setMap(null);
}
function createMarkers() {
for (i = 0; i < data.individuals.length; i++) {
data.individuals[i].marker = new google.maps.Marker({
clickable: true,
draggable: true,
icon: {
path: google.maps.SymbolPath.CIRCLE,
fillOpacity: 1.0,
fillColor: data.individuals[i].color,
strokeWeight: 0,
scale: 5
},
optimized: true
});
data.individuals[i].marker.setPosition(new google.maps.LatLng());
data.individuals[i].marker.setTitle(data.individuals[i].individual_local_identifier);
google.maps.event.addListener(data.individuals[i].marker, "click", (function (individual) {
return function () {
showInfo(individual);
};
})(data.individuals[i]));
google.maps.event.addListener(data.individuals[i].marker,
'drag', (function (individual) {
return function (e) {
hideInfos();
showClosestPointInSpace(individual, e.latLng,
false);
};
})(data.individuals[i]));
}
}
function showInfo(individual) {
wasOpen = (individual.info != null);
hideInfos();
if (!wasOpen && individual.marker) {
individual.info = new google.maps.InfoWindow();
updateInfo(individual);
individual.info.open(map, individual.marker);
}
}
function hideInfos() {
for (i = 0; i < data.individuals.length; i++) {
if (data.individuals[i].info) {
data.individuals[i].info.close();
data.individuals[i].info = null;
}
}
}
function updateInfo(individual) {
if (individual.info && individual.marker) {
tsFirst = individual.locations[0].timestamp;
tsLast = individual.locations[individual.locations.length - 1].timestamp;
ts = individual.marker.timestamp;
if (ts < tsFirst)
ts = tsFirst;
if (ts > tsLast)
ts = tsLast;
individual.info.setContent("<b>" + individual.individual_local_identifier + "</b>" + "<br>" +
"Recorded at " + formatTimestamp(ts));
}
}
function createPolylines() {
for (i = 0; i < data.individuals.length; i++) {
var track = [];
for (j = 0; j < data.individuals[i].locations.length; j++) {
track[j] = new google.maps.LatLng(
data.individuals[i].locations[j].location_lat,
data.individuals[i].locations[j].location_long);
}
icons = [{
icon: {
path: google.maps.SymbolPath.FORWARD_CLOSED_ARROW
},
offset: 0,
repeat: '100px'
}
];
var polyline = new google.maps.Polyline({
path: track,
clickable: true,
strokeColor: data.individuals[i].color,
strokeOpacity: 0.7,
strokeWeight: 2
//icons : icons
});
polyline.setMap(map);
google.maps.event.addListener(polyline, 'click', (function (
individual) {
return function (e) {
showClosestPointInSpace(individual, e.latLng, true);
showInfo(individual);
};
})(data.individuals[i]));
}
}
function createPolylines2() {
icons = [{
icon: {
path: google.maps.SymbolPath.CIRCLE
},
offset: 0
}
];
for (i = 0; i < data.individuals.length; i++) {
for (j = 0; j < data.individuals[i].locations.length - 1; j++) {
new google.maps.Polyline({
path: [new google.maps.LatLng(
data.individuals[i].locations[j].location_lat,
data.individuals[i].locations[j].location_long),
new google.maps.LatLng(
data.individuals[i].locations[j].location_lat,
data.individuals[i].locations[j].location_long)
],
clickable: false,
strokeColor: data.individuals[i].color,
strokeOpacity: 1,
strokeWeight: 2,
icons: icons
}).setMap(map);
}
}
}
}
</script>
<div id="map-canvas" style="width: 600px; height: 700px"></div> <!-- !! can modify to change map dimensions, border etc. -->
<div id="time-display-div">
<input type="text" id="time-display"
style="border: none; font-weight: bold; color: #FFFFFF; background: transparent; margin-top: 7px; width: 0px"></input>
</div>
</div>
</body>
</html><html><head></head><body></body></html>