Annotorious Better Polygon
A better polygon selection tool for Annotorious. Compatible with both the Annotorious standard version and Annotorious for OpenSeadragon.
Features
- Close the polygon either by double clicking (or long tap), or re-selecting the first point
- When approaching the first point, the mouse will snap to it to make selecting easier
- Add points by clicking and dragging the line midpoint handles
- Remove points by selecting them with a click and pressing the DEL key
- Optionally start drawing by drag or single click
Installation
Better Polygon requires Annotorious version 2.5.9 or higher.
<html>
<head>
<!-- Import Annotorious first -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@recogito/annotorious@latest/dist/annotorious.min.css">
<script src="https://cdn.jsdelivr.net/npm/@recogito/annotorious@latest/dist/annotorious.min.js"></script>
<!-- Import the Better Polygon script -->
<script src="https://cdn.jsdelivr.net/npm/@recogito/annotorious-better-polygon@latest/dist/annotorious-better-polygon.js"></script>
</head>
<body>
<img id="hallstatt" src="640px-Hallstatt.jpg" />
<script type="text/javascript">
(function() {
// Init Annotorious
var anno = Annotorious.init({
image: 'hallstatt'
});
// Init the plugin
Annotorious.BetterPolygon(anno);
})();
</script>
</body>
</html>Or via npm:
$ npm i @recogito/annotorious-better-polygon
Import and initialize:
import BetterPolygon from '@recogito/annotorious-better-polygon';
//...
BetterPolygon(anno);