11.36. Zooming Image Tool

Note

EdX does not support this tool.

If you present information to your learners using very large or very detailed images, learners might not be able to clearly see all the information in the image. Use the zooming image tool to provide learners with the ability to zoom in to and enlarge selected areas of your image.

Example zooming image tool showing a chemistry exercise.

11.36.1. Components of a Zooming Image Tool

To create a zooming image tool, you need the following files.

  • The image that you want learners to see when they access the unit.
  • The image that appears in the magnified area when a learner selects the regular image. This image can be larger than the regular image.
  • The jquery.loupeAndLightbox.js JavaScript file from http://files.edx.org/jqueryloupeAndLightbox.js.

11.36.2. Create a Zooming Image Tool

  1. Download the jquery.loupeAndLightbox.js file by right-clicking the following link, and then selecting the option to save or download the linked file.

    http://files.edx.org/jqueryloupeAndLightbox.js

  2. In Studio, select Content and then select Files & Uploads to upload your regular-sized image file, your small image file, and the jquery.loupeAndLightbox.js file. For more information about uploading files for your course, see Adding Files to a Course.

  3. Add a zooming image tool to your course. In the course outline in Studio, select Add New Component, select HTML, and then select Zooming Image Tool.

  4. In the new component that appears, select Edit.

  5. In the component editor, replace the default problem text with your own text.

  6. Select HTML from the toolbar to edit the HTML source code.

  7. Scroll down in the file, and then replace the following placeholders with your own content.

    • Replace the following file name and path with the name and path of the image that you want to appear magnified when the user hovers over the regular image.

      https://studio.edx.org/c4x/edX/DemoX/asset/pathways_detail_01.png

      For example, your file name and path might be /static/Image1.jpg.

    • Replace the following file name and path with the name and path of the image that you want to appear when the page opens.

    https://studio.edx.org/c4x/edX/DemoX/asset/pathways_overview_01.png

    For example, your file name and path might be /static/Image2.jpg.

    • Replace the following name and file path with the name and path of the JavaScript file that you downloaded from files.edx.org.

      https://studio.edx.org/c4x/edX/DemoX/asset/jquery.loupeAndLightbox.js

      Because you uploaded the jquery.loupeAndLightbox.js file to the Files & Uploads page, your file name and path is /static/jquery.loupeAndLightbox.js.

    • (Optional) If you want the magnified area to be larger or smaller, change the width and height values from 350 to larger or smaller numbers. For example, you can change both numbers to 450. Or, if you want a horizontal oval instead of a circle, you can change the width value to a number such as 500 and the height value to a number such as 150.

    The HTML in your zooming image tool might resemble the following.

    Example HTML for a zooming image tool.
  8. Select Save.