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G02: Add gantt chart with Journeys Visualization #16

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G02: Add gantt chart with Journeys Visualization
dqmrf Jul 2, 2026
e7b2e75
G02: Minor code changes & improvements
dqmrf Jul 8, 2026
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13 changes: 8 additions & 5 deletions highcharts-api/highcharts-gantt/02-journeys-visualization/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -2,16 +2,19 @@

<head>

<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1">

<script src="https://code.highcharts.com/gantt/highcharts-gantt.js"></script>
<script src="https://code.highcharts.com/gantt/highcharts-gantt.js"></script>
<script src="https://code.highcharts.com/gantt/modules/draggable-points.js"></script>
<script src="https://code.highcharts.com/modules/drilldown.js"></script>
<script src="https://code.highcharts.com/modules/accessibility.js"></script>

</head>

<body>
<div id="container"></div>
<div id="container"></div>
</body>

<script src="main.js"></script>
132 changes: 112 additions & 20 deletions highcharts-api/highcharts-gantt/02-journeys-visualization/main.js
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Original file line number Diff line number Diff line change
@@ -1,22 +1,114 @@
Highcharts.ganttChart('container', {

title: {
text: 'Journeys (visualization)'
},
const day = 1000 * 60 * 60 * 24;
const dateMin = Date.UTC(2024, 0, 1),
dateMax = Date.UTC(2024, 0, 8);

series: [{
name: 'Journeys',
data: [{
name: 'Cruises',
id: 'cruises',
start: Date.UTC(2024, 0, 1),
end: Date.UTC(2024, 0, 4)
}, {
name: 'Flights',
id: 'flights',
start: Date.UTC(2024, 0, 3),
end: Date.UTC(2024, 0, 7)
}]
}]

Highcharts.ganttChart('container', {
title: {
text: 'Journeys (visualization)'
},
chart: {
events: {
load() {
// Navigator doesn't display all data on start by default...
this.series.forEach(s => s.update({}, false));

@jedrzejruta jedrzejruta Jul 7, 2026

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Looks like you've found the issue with Navigator not rendering the rows correctly, that's is a really nice workaround!

}
}
},
xAxis: {
units: [['day']],
dateTimeLabelFormats: {
day: 'Day %e'
}
},
navigator: {
enabled: true
},
plotOptions: {
series: {
dataLabels: {
enabled: true,
format: `{point.options.label}`
},
dragDrop: {
draggableX: true,
liveRedraw: false,
dragPrecisionX: day,
dragMinX: dateMin,
dragMaxX: dateMax,
}
}
},
series: [{
name: 'Journeys',
data: [{
name: 'Cruises',
id: 'cruises',
start: Date.UTC(2024, 0, 1),
end: Date.UTC(2024, 0, 4)
}, {
name: 'Norway - England',
id: 'norway-england-cruise',
parent: 'cruises',
dependency: 'cruises',
start: Date.UTC(2024, 0, 2),
end: Date.UTC(2024, 0, 3)
}, {
name: 'Flights',
id: 'flights',
start: Date.UTC(2024, 0, 3),
end: Date.UTC(2024, 0, 7)
}, {
name: 'Domestic flights',
id: 'domestic-flights',
parent: 'flights',
start: Date.UTC(2024, 0, 4),
end: Date.UTC(2024, 0, 6)
}, {
name: 'Beijing - Hong Kong',
id: 'beijing-hongkong-flight',
parent: 'domestic-flights',
dependency: ['flights', 'domestic-flights'],
start: Date.UTC(2024, 0, 4),
end: Date.UTC(2024, 0, 5)
}, {
name: 'International flights',
id: 'international-flights',
parent: 'flights',
start: Date.UTC(2024, 0, 4),
end: Date.UTC(2024, 0, 7)
}, {
name: 'Norway - Brazil',
id: 'norway-brazil-flight',
label: 'Show full adventure',
drilldown: 'norway-brazil-flight-full',
parent: 'international-flights',
dependency: ['flights', 'international-flights'],
dragDrop: {
draggableX: false
},
color: '#f5deb2',
start: Date.UTC(2024, 0, 5),
end: Date.UTC(2024, 0, 8)
}]
}],
drilldown: {
series: [{
showInNavigator: true,
name: 'Norway - Brazil full',
id: 'norway-brazil-flight-full',
data: [{
name: 'Norway - Spain',
id: 'norway-spain-flight',
color: '#f5deb2',
start: Date.UTC(2024, 0, 5),
end: Date.UTC(2024, 0, 6)
}, {
name: 'Spain - Brazil',
id: 'spain-brazil-flight',
color: '#f5deb2',
start: Date.UTC(2024, 0, 6),
end: Date.UTC(2024, 0, 8)
}]
}]
}
});