From 40d86b6669ce084682ccccea656b7439e1bac6e2 Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 22:53:22 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

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+<!DOCTYPE HTML>
+<html>
+
+<head>
+  <meta content="text/html;charset=utf-8" http-equiv="Content-Type">
+  <meta content="utf-8" http-equiv="encoding">
+  <title>Graph2d | Basic Example</title>
+
+  <style type="text/css">
+    body, html {
+      font-family: sans-serif;
+    }
+
+    .red {
+      fill:red;
+    }
+  </style>
+
+  <script src="../../dist/vis.js"></script>
+  <link href="../../dist/vis.css" rel="stylesheet" type="text/css" />
+<script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-61231638-1', 'auto');ga('send', 'pageview');</script></head>
+<body>
+<h2>Graph2d | Label Example</h2>
+<div style="width:700px; font-size:14px; text-align: justify;">
+  This example shows the how to add a label to each point in Graph2d. Each item can have a label object which contains the content and CSS class.In addition, xOffset and yOffset will adjust the location of the label relative to the point being labelled. 
+
+  
+  <br /><br />
+  
+</div>
+<br />
+<div id="visualization"></div>
+
+<script type="text/javascript">
+
+  var container = document.getElementById('visualization');
+  var label1 = {
+    content: "Label 1 (with offset)",
+    xOffset: 20,
+    yOffset: 20
+  }
+
+  var label2 = {
+    content: "Label 2",
+    className: "red"
+  }
+  
+  var label3 = {
+    content: "Label 3"
+  }
+  var items = [
+    {group: 1, x: '2014-06-11', y: 10, label: label1},
+    {group: 1, x: '2014-06-12', y: 25, label: label2},
+    {group: 1, x: '2014-06-13', y: 30},
+    {group: 1, x: '2014-06-14', y: 10},
+    {group: 1, x: '2014-06-15', y: 15, label: label3},
+    {group: 1, x: '2014-06-16', y: 30},
+    
+    {group: 2, x: '2014-06-17', y: 10, label:label1},
+    {group: 2, x: '2014-06-18', y: 25, label:label2},
+    {group: 2, x: '2014-06-19', y: 30},
+    {group: 2, x: '2014-06-20', y: 10},
+    {group: 2, x: '2014-06-21', y: 15, label: label3},
+    {group: 2, x: '2014-06-22', y: 30},
+    
+    {group: 3, x: '2014-06-23', y: 10, label:label1},
+    {group: 3, x: '2014-06-24', y: 25, label:label2},
+    {group: 3, x: '2014-06-25', y: 30},
+    {group: 3, x: '2014-06-26', y: 10},
+    {group: 3, x: '2014-06-27', y: 15, label: label3},
+    {group: 3, x: '2014-06-28', y: 30}
+  ];
+
+  var groups = new vis.DataSet();
+  groups.add(
+    {
+      id: 1,
+      content: "Only draw items with labels. Make the data point bigger and a square.",
+      options: {
+        drawPoints: function group1Renderer(item, group, grap2d) {
+		  if (item.label == null) {
+            return false;
+          }
+          return {
+            style: 'square',
+            size: 15
+          };
+      	}
+      }
+    }
+  );
+  
+  groups.add(
+    {
+      id: 2,
+      content: "Draw according to the Graph2d callback, but make it every datapoint square one.",
+      options: {
+          drawPoints: {
+            style: 'square'
+          }
+      }
+    }
+  );
+  
+  groups.add(
+    {
+      id: 3,
+      content: "I want to render datapoints with no labels. Screw the graph2d options. Except the style/size should be according to the graph2d option.",
+      options: {
+          drawPoints: function(item, group, grap2d) {
+            return item.label == null;
+          }
+      }
+    }
+  );
+  
+  var dataset = new vis.DataSet(items);
+  var options = {
+    start: '2014-06-10',
+    end: '2014-06-29',
+    style: 'bar',
+    drawPoints: {
+      onRender: function(item, group, grap2d) {
+        return item.label != null;
+      },
+      style: 'circle'
+    }
+    
+  };
+  
+  var graph2d = new vis.Graph2d(container, dataset, groups, options);
+  
+</script>
+</body>
+</html>
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