From 0f4d15988c496a87fa0270f4c5aa3e4ee5014eb5 Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 22:54:59 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

---
 .../editing/customSnappingOfItems.html        | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 js/dos/ext/vis/examples/timeline/editing/customSnappingOfItems.html
diff --git a/js/dos/ext/vis/examples/timeline/editing/customSnappingOfItems.html b/js/dos/ext/vis/examples/timeline/editing/customSnappingOfItems.html
new file mode 100644
index 0000000..65a9a51
--- /dev/null
+++ b/js/dos/ext/vis/examples/timeline/editing/customSnappingOfItems.html
@@ -0,0 +1,55 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Timeline | Custom snapping</title>
+
+  <script src="../../../dist/vis.js"></script>
+  <link href="../../../dist/vis.css" rel="stylesheet" type="text/css" />
+  <script src="../../googleAnalytics.js"></script>
+</head>
+<body>
+<p>
+  When moving the items in on the Timeline below, they will snap to full hours,
+  independent of being zoomed in or out.
+</p>
+<div id="visualization"></div>
+
+<script type="text/javascript">
+  // DOM element where the Timeline will be attached
+  var container = document.getElementById('visualization');
+
+  // Create a DataSet (allows two way data-binding)
+  var items = new vis.DataSet([
+    {id: 1, content: 'A', start: '2015-02-09T04:00:00'},
+    {id: 2, content: 'B', start: '2015-02-09T14:00:00'},
+    {id: 3, content: 'C', start: '2015-02-09T16:00:00'},
+    {id: 4, content: 'D', start: '2015-02-09T17:00:00'},
+    {id: 5, content: 'E', start: '2015-02-10T03:00:00'}
+  ]);
+
+  // Configuration for the Timeline
+  var options = {
+    editable: true,
+
+    // always snap to full hours, independent of the scale
+    snap: function (date, scale, step) {
+      var hour = 60 * 60 * 1000;
+      return Math.round(date / hour) * hour;
+    }
+
+    // to configure no snapping at all:
+    //
+    //   snap: null
+    //
+    // or let the snap function return the date unchanged:
+    //
+    //   snap: function (date, scale, step) {
+    //     return date;
+    //   }
+  };
+
+  // Create a Timeline
+  var timeline = new vis.Timeline(container, items, options);
+</script>
+</body>
+</html>
\ No newline at end of file
