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visualization.html
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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>OpenXC Trace File Viewer</title>
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
padding-left: 15px;
height: 90%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin-left: 20px;
margin-right: 20px;
padding: 0;
}
/* file system */
.filesystem {
padding: 10px;
border: 1px solid #ccc;
}
#progress_bar {
margin: 10px 0;
padding: 3px;
border: 1px solid #000;
font-size: 14px;
clear: both;
opacity: 0;
-moz-transition: opacity 1s linear;
-o-transition: opacity 1s linear;
-webkit-transition: opacity 1s linear;
}
#progress_bar.loading {
opacity: 1.0;
}
#progress_bar .percent {
background-color: #99ccff;
height: auto;
width: 0;
}
</style>
</head>
<body>
<div style="float:left; width: 52%;">
<p style="padding: 0 15px">
<strong>OpenXC Trace File Viewer</strong>: choose your .json file, examples are
<a target="_blank" href="http://openxcplatform.com/resources/traces.html">here</a>
.
</p>
<div class="filesystem">
<input type="file" id="files" name="file" />
<button onclick="abortRead();">Cancel read</button>
<div id="progress_bar"><div class="percent">0%</div></div>
</div>
<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>
</div>
<div id="map"></div>
<!-- Google map api -->
<script>
var map;
var flightPath;
var marker_start;
var marker_end;
var marker_current;
// This example creates a 2-pixel-wide red polyline showing the path of William
// Kingsford Smith's first trans-Pacific flight between Oakland, CA, and
// Brisbane, Australia.
function initMap() {
var flightPlanCoordinates = [
// {lat: 37.772, lng: -122.214},
// {lat: 21.291, lng: -157.821},
// {lat: -18.142, lng: 178.431},
// {lat: -27.467, lng: 153.027}
];
// console.log(flightPlanCoordinates);
map = new google.maps.Map(document.getElementById('map'), {
zoom: 1,
// center: {lat: 0, lng: -180},
center: {lat: 0, lng: 0},
mapTypeId: 'terrain'
});
flightPath = new google.maps.Polyline({
path: flightPlanCoordinates,
geodesic: true,
strokeColor: '#FF0000',
strokeOpacity: 1.0,
strokeWeight: 2
});
marker_start = new google.maps.Marker({
position: null,
map: null,
icon: 'http://www.google.com/mapfiles/dd-start.png'
});
marker_end = new google.maps.Marker({
position: null,
map: null,
icon: 'http://www.google.com/mapfiles/dd-end.png'
});
marker_current = new google.maps.Marker({
position: null,
map: null,
icon: 'http://www.google.com/mapfiles/marker.png'
});
flightPath.setMap(map);
}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyC2gVW_0HcTP_Y6wxcWnTT6wDQQQV-HxAg&callback=initMap">
</script>
<!-- file system -->
<script>
var reader;
var progress = document.querySelector('.percent');
var data;
var latlng;
function abortRead() {
reader.abort();
}
function errorHandler(evt) {
switch(evt.target.error.code) {
case evt.target.error.NOT_FOUND_ERR:
alert('File Not Found!');
break;
case evt.target.error.NOT_READABLE_ERR:
alert('File is not readable');
break;
case evt.target.error.ABORT_ERR:
break; // noop
default:
alert('An error occurred reading this file.');
};
}
function updateProgress(evt) {
// evt is an ProgressEvent.
if (evt.lengthComputable) {
var percentLoaded = Math.round((evt.loaded / evt.total) * 100);
// Increase the progress bar length.
if (percentLoaded < 100) {
progress.style.width = percentLoaded + '%';
progress.textContent = percentLoaded + '%';
}
}
}
function handleFileSelect(evt) {
// Reset progress indicator on new file selection.
progress.style.width = '0%';
progress.textContent = '0%';
reader = new FileReader();
reader.onerror = errorHandler;
reader.onprogress = updateProgress;
reader.onabort = function(e) {
alert('File read cancelled');
};
reader.onloadstart = function(e) {
document.getElementById('progress_bar').className = 'loading';
};
reader.onload = function(e) {
// Ensure that the progress bar displays 100% at the end.
progress.style.width = '100%';
progress.textContent = '100%';
setTimeout("document.getElementById('progress_bar').className='';", 2000);
// load data from json, stored in data.name
data = new Object();
json_array = e.target.result.split('\n');
// also calculate advanced stats, stored in data._name
const DISTANCE = 0.2; // in kilo-meter
const TIME = 60; // in an minute
var recentOdomEvt = [];
var recentFuelEvtByOdom = [];
var recentFuelEvtByTime = [];
data._fuel_rate = []; // Liter per Hour
data._fuel_efficiency = []; // Liter per 100 km
json_array.forEach(function(e) {
try {
var tmp = JSON.parse(e);
var tmp2 = {timestamp: tmp['timestamp'], value: tmp['value']};
if (!(tmp['name'] in data)) {
data[tmp['name']] = [tmp2];
} else {
data[tmp['name']].push(tmp2);
}
// update recentOdomEvt
if (tmp['name'] == 'odometer') {
recentOdomEvt.push(tmp2);
while (recentOdomEvt[0].value < tmp['value'] - DISTANCE) {
recentOdomEvt.shift();
}
}
// update recentFuelEvt
if (tmp['name'] == 'fuel_consumed_since_restart') {
// update fuel by odom
recentFuelEvtByOdom.push(tmp2);
while(recentFuelEvtByOdom.length > 0
&& recentOdomEvt.length > 0
&& recentFuelEvtByOdom[0].timestamp < recentOdomEvt[0].timestamp) {
recentFuelEvtByOdom.shift();
}
if (recentOdomEvt.length >= 2 && recentFuelEvtByOdom.length >= 2) {
const odomTime = recentOdomEvt[recentOdomEvt.length - 1].timestamp - recentOdomEvt[0].timestamp;
const odomVal = recentOdomEvt[recentOdomEvt.length - 1].value - recentOdomEvt[0].value;
const fuelTimeByOdom = recentFuelEvtByOdom[recentFuelEvtByOdom.length - 1].timestamp - recentFuelEvtByOdom[0].timestamp;
const fuelValByOdom = recentFuelEvtByOdom[recentFuelEvtByOdom.length - 1].value - recentFuelEvtByOdom[0].value;
if (odomVal > 0.1) {
data._fuel_efficiency.push({
timestamp: tmp['timestamp'],
value: fuelValByOdom * odomTime / odomVal / fuelTimeByOdom * 100,
});
}
}
// update fuel by time
recentFuelEvtByTime.push(tmp2);
while(recentFuelEvtByTime.length > 0
&& recentFuelEvtByTime[0].timestamp < recentFuelEvtByTime[recentFuelEvtByTime.length - 1].timestamp - TIME) {
recentFuelEvtByTime.shift();
}
var ll = recentFuelEvtByTime.length;
if (ll >= 2) {
const fuelTimeByTime = recentFuelEvtByTime[ll - 1].timestamp - recentFuelEvtByTime[0].timestamp;
const fuelValByTime = recentFuelEvtByTime[ll - 1].value - recentFuelEvtByTime[0].value;
if (fuelTimeByTime > 30) { // at least 30s
data._fuel_rate.push({
timestamp: tmp['timestamp'],
value: fuelValByTime / fuelTimeByTime * 3600,
});
}
}
}
} catch (error) {
// do nothing
// console.log(error);
}
});
// visualization
console.log(data);
if (data.latitude && data.longitude) {
visualize_map();
} else {
alert("No GPS data found!!");
}
visualize_chart();
}
function visualize_map() {
// handle lat and lng
var i = 0, j = 0;
var lat = [], lng = [];
latlng = [];
while (i < data.latitude.length && j < data.longitude.length) {
if (Math.abs(data.latitude[i].timestamp - data.longitude[j].timestamp) < 0.1) {
latlng.push({
timestamp: (data.latitude[i].timestamp + data.longitude[j].timestamp) / 2,
lat: data.latitude[i].value,
lng: data.longitude[i].value,
});
lat.push(data.latitude[i].value);
lng.push(data.longitude[i].value);
i++; j++;
}
else if (data.latitude[i].timestamp > data.longitude[j].timestamp) {
j++;
} else {
i++;
}
}
// set path
map.setZoom(13);
map.setCenter({
lat: (Math.max.apply(null, lat) + Math.min.apply(null, lat)) / 2,
lng: (Math.max.apply(null, lng) + Math.min.apply(null, lng)) / 2,
});
flightPath.setPath(latlng);
marker_start.setPosition(latlng[0]);
marker_start.setMap(map);
marker_end.setPosition(latlng[latlng.length - 1]);
marker_end.setMap(map);
}
function visualize_chart() {
// -- draw chart --
var chart = $('#container').highcharts();
// numeric type
chart.series[0].setData(highchartsFormat(data.vehicle_speed));
chart.series[1].setData(highchartsFormat(data.engine_speed));
chart.series[2].setData(highchartsFormat(data.steering_wheel_angle));
chart.series[3].setData(highchartsFormat(data.torque_at_transmission));
chart.series[4].setData(highchartsFormat(data.accelerator_pedal_position));
chart.series[5].setData(highchartsFormat(data.odometer));
chart.series[6].setData(highchartsFormat(data.fuel_level));
chart.series[7].setData(highchartsFormat(data.fuel_consumed_since_restart));
// enum type
chart.series[8].setData(highchartsFormat(
data.parking_brake_status,
{true: 1, false: 0}
));
chart.series[9].setData(highchartsFormat(
data.brake_pedal_status,
{true: 1, false: 0}
));
chart.series[10].setData(highchartsFormat(
data.transmission_gear_position,
{first:1, second:2, third:3, fourth:4, fifth:5,
sixth:6, seventh:7, eighth:8, reverse:-1, neutral:0}
));
// chart.series[0].setData(highchartsFormat(data.ignition_status));
// chart.series[0].setData(highchartsFormat(data.door_status));
// chart.series[0].setData(highchartsFormat(data.headlamp_status));
// chart.series[0].setData(highchartsFormat(data.high_beam_status));
// chart.series[0].setData(highchartsFormat(data.windshield_wiper_status));
// chart.series[0].setData(highchartsFormat(data.button_event));
chart.series[11].setData(highchartsFormat(data._fuel_rate));
chart.series[12].setData(highchartsFormat(data._fuel_efficiency));
}
function highchartsFormat(input, dic) {
var output = [];
try{
if (dic == undefined) {
input.forEach(function (e) {
if (isFinite(e.value)) {
output.push([e.timestamp * 1000, e.value]);
}
});
} else {
input.forEach(function (e) {
output.push([e.timestamp * 1000, dic[e.value]]);
});
}
} catch (error) {}
return output;
}
// Read in the image file as a binary string.
reader.readAsText(evt.target.files[0]);
}
document.getElementById('files').addEventListener('change', handleFileSelect, false);
</script>
<!-- highcharts -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script src="http://code.jquery.com/ui/1.9.2/jquery-ui.js"></script>
<script src="https://code.highcharts.com/stock/highstock.js"></script>
<script src="https://code.highcharts.com/stock/modules/exporting.js"></script>
<script>
$(function () {
// Create the chart
$('#container').highcharts('StockChart', {
rangeSelector: {
buttons: [{
type: 'second',
count: 1,
text: '1s'
}, {
type: 'second',
count: 10,
text: '10s'
}, {
type: 'minute',
count: 1,
text: '1m'
}, {
type: 'minute',
count: 10,
text: '10m'
}, {
type: 'hour',
count: 1,
text: '1h'
}, {
type: 'all',
text: 'All'
}]
},
title: {
text: 'OpenXC trace file data'
},
legend: {
enabled: true
},
plotOptions: {
series: {
point: {
events: {
mouseOver: function () {
if (data.latitude && data.longitude) {
showCurrentPosition(this.x / 1000);
}
}
}
},
events: {
mouseOver: function () {
if (data.latitude && data.longitude) {
marker_current.setMap(map);
}
},
mouseOut: function () {
marker_current.setMap(null);
}
}
}
},
series: [
{
name: 'Vehicle Speed',
data: [],
tooltip: {valueDecimals: 2}
}, {
name: 'Engine Speed',
data: [],
tooltip: {valueDecimals: 2},
visible: false,
}, {
name: 'Steering Angle',
data: [],
tooltip: {valueDecimals: 2},
visible: false,
}, {
name: 'Torque',
data: [],
tooltip: {valueDecimals: 2},
visible: false,
}, {
name: 'Accelerator Pedal',
data: [],
tooltip: {valueDecimals: 3},
visible: false,
}, {
name: 'Odometer',
data: [],
tooltip: {valueDecimals: 2},
visible: false,
}, {
name: 'Fuel Level',
data: [],
tooltip: {valueDecimals: 5},
visible: false,
}, {
name: 'Fuel Consumed',
data: [],
tooltip: {valueDecimals: 5},
visible: false,
}, {
name: 'Parking Brake',
data: [],
step: true,
tooltip: {valueDecimals: 0},
visible: false,
}, {
name: 'Brake Pedal',
data: [],
step: true,
tooltip: {valueDecimals: 0},
visible: false,
}, {
name: 'Gear Position',
data: [],
step: true,
tooltip: {valueDecimals: 0},
visible: false,
}, {
name: 'Fuel Rate (per hour)',
data: [],
tooltip: {valueDecimals: 5},
visible: false,
}, {
name: 'Fuel Efficiency (per 100km)',
data: [],
tooltip: {valueDecimals: 5},
visible: false,
},
]
});
});
function showCurrentPosition(t) {
var closest = latlng.reduce(function (prev, curr) {
return (Math.abs(curr.timestamp - t) < Math.abs(prev.timestamp - t) ? curr : prev);
});
marker_current.setPosition(closest);
}
</script>
</body>
</html>