Title: Active Contour
Author: shra
Published: <strong>June 24, 2025</strong>
Last modified: June 24, 2025

---

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![](https://s.w.org/plugins/geopattern-icon/active-contour.svg)

# Active Contour

 By [shra](https://profiles.wordpress.org/shra/)

[Download](https://downloads.wordpress.org/plugin/active-contour.zip)

 * [Details](https://srd.wordpress.org/plugins/active-contour/#description)
 * [Reviews](https://srd.wordpress.org/plugins/active-contour/#reviews)
 *  [Installation](https://srd.wordpress.org/plugins/active-contour/#installation)
 * [Development](https://srd.wordpress.org/plugins/active-contour/#developers)

 [Support](https://wordpress.org/support/plugin/active-contour/)

## Description

**Active Contour** lets you define interactive contour areas on media images. Each
polygonal area can be associated with a title & URL, making it easy to build rich
visual navigation, diagrams, and interactive image content.

### Features

 * **Edit contours directly in the Media Library**
    - Add, move, and delete points visually
    - Scaled preview with zoom and background options
 * **Define attributes per area**
    - Each area can include `title`, `href`, and custom data
    - Stored as JSON in image meta field
 * **Import contours from external tools**
    - Paste a JSON object describing one or multiple contours
    - Compatible with AI-generated data or exported data from vector tools
    - Preview and refine the result before saving
 * **Gutenberg Block Support**
    - Insert an image with interactive contours using the included block (Active
      Contour)
    - Live preview of the selected image and contour state
 * **Shortcode Support**
    - Use `[active_contour id="123" cid="1,2"]` to embed images with specific contours
    - Works anywhere shortcodes are supported (pages, posts, widgets)

### Use cases

 * Interactive maps and diagrams
 * Infographics with tooltips or links
 * Product showcases with click/tap areas
 * Educational or documentation content

### Keyboard Shortcuts

While editing points in the contour editor, you can use the following keyboard shortcuts
for greater control:

 * Delete — Removes the currently selected point from the contour.
    - or Numpad + — Converts the selected segment into a curved arc (or increases
      arc intensity).
 *  - or Numpad – — Decreases arc curvature or switches arc back to straight line.
 * Shift (hold) — Activates zoom mode. While holding Shift, a magnifier lens appears
   under the cursor to help you place points more precisely.

Other behaviors:

 * Click on canvas — Adds a new point in the closest location or selects an existing
   one if clicked near.
 * Click and drag a point — Moves the selected point with the mouse.

## Screenshots

 * [[
 * Contour editor inside Media Library
 * [[
 * Contour settings and preview in the Gutenberg block
 * [[
 * Export tool
 * [[
 * Creating contour…
 * [[
 * Using arc interpolation tool
 * [[
 * Filtering by tags…

## Blocks

This plugin provides 1 block.

 *   Active Contour Insert Image with active contours.

## Installation

 1. Upload the plugin to the `/wp-content/plugins/` directory or install via the Plugin
    Installer.
 2. Activate the plugin.
 3. Open any image in the Media Library and go to the **Contours** tab.
 4. Add contour points and set properties.
 5. Use the provided block (Active Contour) or shortcode to insert the image.

## FAQ

### Where is contour data stored?

As a JSON structure in the attachment meta under `_active_contours`.

### Can I style or extend how contours are rendered?

Yes. You can use custom styles via CSS. Block is rendered inside div.active-contour-
container element.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Active Contour” is open source software. The following people have contributed 
to this plugin.

Contributors

 *   [ shra ](https://profiles.wordpress.org/shra/)

[Translate “Active Contour” into your language.](https://translate.wordpress.org/projects/wp-plugins/active-contour)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/active-contour/), check
out the [SVN repository](https://plugins.svn.wordpress.org/active-contour/), or 
subscribe to the [development log](https://plugins.trac.wordpress.org/log/active-contour/)
by [RSS](https://plugins.trac.wordpress.org/log/active-contour/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * Initial release.

## Meta

 *  Version **1.0**
 *  Last updated **10 months ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.0 or higher **
 *  Tested up to **6.8.5**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/active-contour/)
 * Tags
 * [image hotspot](https://srd.wordpress.org/plugins/tags/image-hotspot/)[Image Map](https://srd.wordpress.org/plugins/tags/image-map/)
   [interactive image](https://srd.wordpress.org/plugins/tags/interactive-image/)
 *  [Advanced View](https://srd.wordpress.org/plugins/active-contour/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/active-contour/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/active-contour/reviews/)

## Contributors

 *   [ shra ](https://profiles.wordpress.org/shra/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/active-contour/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](https://pay.cryptocloud.plus/pos/Oc9ieI6Eb5HWPptn)