This week I'd like to highlight another example project one of our support agents developed in response to a customer request. Group annotations are a necessary feature in any application utilizing annotations and markup. In fact, the LEADTOOLS HTML5 SDK includes support for group annotations out of the box by simply clicking and dragging with the select tool. However, this customer had a requirement to create and edit group annotations programmatically.

Here is how you create the annotations and then place them in groups. After that you can use the mouse to select, move and resize each group as if they were a single entity.

Most image viewing applications and controls are designed for viewing a single image at a time. However some images and documents, such as TIFF and PDF, have multiple pages. Since these documents are typically full of text, it is very natural to keep reading on to the next page without the need to press a button to load the next page. We have received several requests for this feature and one of our developer support agents has created an demo showing how to implement continuous multipage scrolling with our HTML5 viewer and RESTful Web Services.

The basic idea works similarly to an image slider or carousel you might see on a homepage. There is an outer container which, when scrolled to a specified location, will asynchronously create an additional HTML5 Viewer for the next page and allow you to keep scrolling until you have reached the end of the document. Below is the JavaScript snippet which modifies the DOM with jQuery and calls the LEADTOOLS Raster Web service to retrieve the image.

HIMSS 2013 is coming up in a few weeks and LEAD Technologies has some exciting plans for its exhibit this year. Stop by booth #2218 between March 4-6 to converse with our sales and technical support representatives about the recently released LEADTOOLS Version 18 and LEADTOOLS Anywhere™. In addition to our regular product information exhibits, we will be hosting four live Technology Showcase Presentations each day covering the following topics:

• Recognition Technologies
• PDF and Document Technologies
• DICOM Client Technologies
• PACS Server Framework with Zero Footprint HTML5 Medical Viewer

For more details on the times and covered topics for each presentation, please click here. You will also find a form to pre-register and let us know you're coming. Pre-registering is not required, but gives you an opportunity to ensure a meeting time and for us to answer any of your questions.