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Added date range [show only location history between two dates] #11

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Added date range [show only location history between two dates] #11

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0be2d18
Added date range [show only location history between two dates]
pierlauro Mar 30, 2015
50cfbbc
Restore original credits
pierlauro Mar 30, 2015
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11 changes: 11 additions & 0 deletions index.html
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
<title>location-history-visualizer</title>
<link rel="stylesheet" href="index.css"/>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.css"/>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
</head>
<body>
<div class="visualizer">
Expand All @@ -21,6 +22,11 @@ <h2>location-history-visualizer</h2>
<p class="fallback">Alternatively, select your <b>LocationHistory.json</b> file directly: <input name="file" type="file" id="file"></input></p>
<hr>
<p><i>Experimental (even faster!) import method:</i> Instead of going through Google Takeout, simply browse to the <a href="https://maps.google.com/locationhistory/kml?startTime=0&endTime=9000000000000" target="_blank">Google Location History KML API endpoint</a>. A file (<b>history-12-31-1969.kml</b>) will be downloaded &ndash; just drag and drop it onto this page, and we're off! <i>Note:</i> This uses a non-public Google API and as such may cease to work at any point. Your mileage may vary.</p>
<hr>
<p>You can also view only the location history <b>between two dates</b>:<br/>
From: <input type="text" id="fromDate"> - To: <input type="text" id="toDate">
</p>
<hr>
<p class="credit">A project by <a href="https://theopolis.me" target="_blank">@theopolisme</a>. Made in 2014 in Memphis, Tennessee.</p>
</div>

Expand Down Expand Up @@ -88,6 +94,7 @@ <h2>Render complete!</h2>
</div>

<script src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dropzone/3.8.4/dropzone.min.js"></script>
<script src="lib/leaflet.heat.min.js"></script>
Expand All @@ -103,6 +110,10 @@ <h2>Render complete!</h2>

ga('create', 'UA-55418641-1', 'auto');
ga('send', 'pageview');
$(function() {
$("#fromDate").datepicker();
$("#toDate").datepicker();
});
</script>
</body>
</html>
39 changes: 29 additions & 10 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -34,19 +34,24 @@

// For mobile browsers, allow direct file selection as well
$( '#file' ).change( function () {
stageTwo( this.files[0] );
stageTwo( this.files[0], document.getElementById("fromDate").value, document.getElementById("toDate").value );
dropzone.disable();
} );
}

function stageTwo ( file ) {
function stageTwo ( file, fromDate, toDate ) {
heat = L.heatLayer( [], heatOptions ).addTo( map );

// First, change tabs
$( 'body' ).addClass( 'working' );
$( '#intro' ).addClass( 'hidden' );
$( '#working' ).removeClass( 'hidden' );


if(fromDate && toDate){
fromDate=new Date(document.getElementById("fromDate").value).getTime();
toDate=new Date(document.getElementById("toDate").value).getTime();
}

// Now start working!
processFile( file );

Expand All @@ -63,7 +68,15 @@
function getLocationDataFromJson ( data ) {
var SCALAR_E7 = 0.0000001, // Since Google Takeout stores latlngs as integers
locations = JSON.parse( data ).locations;


if(fromDate && toDate) {
i = locations.length;
while (i--) {
if (locations[i].timestampMs < fromDate || locations[i].timestampMs > toDate)
locations.splice(i, 1);
}
}

if ( !locations || locations.length === 0 ) {
throw new ReferenceError( 'No location data found.' );
}
Expand All @@ -77,18 +90,24 @@
var KML_DATA_REGEXP = /<when>(.*?)<\/when>\s*<gx:coord>(\S*)\s(\S*)\s(\S*)<\/gx:coord>/g,
locations = [],
match = KML_DATA_REGEXP.exec( data );

// match
// [1] ISO 8601 timestamp
// [2] longitude
// [3] latitude
// [4] altitude (not currently provided by Location History)

while ( match !== null ) {
locations.push( [ Number( match[3] ), Number( match[2] ) ] );
match = KML_DATA_REGEXP.exec( data );
if(fromDate && toDate) {
while ( match !== null ) {
if(new Date(match[1]).getTime() >= fromDate && new Date(match[1]).getTime() <= toDate)
locations.push( [ Number( match[3] ), Number( match[2] ) ] );
match = KML_DATA_REGEXP.exec( data );
}
}
else{
while ( match !== null ) {
locations.push( [ Number( match[3] ), Number( match[2] ) ] );
match = KML_DATA_REGEXP.exec( data );
}
}

return locations;
}

Expand Down