Scribble Path Smoothing

Some devices don’t report precise touch point readings. This results in noisy(i.e., not smooth) scribble paths. We need to clean up the scribble data. Firstly, we use the Douglas-Peucker path simplification algorithm to reduce the number of points in a scribble. Douglas-Peucker is able to remove about 80% of points while retaining shape of scribble.…

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ActiveTextbook on The Path of Becoming Fully Accessible

Currently, around 15-20% of the world’s population lives with some form of disability. This is the case while most websites and software products are not accessible, making it difficult or even impossible for many people to use. Web is an essential part of daily life for a lot of people and it is crucial to…

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Readium 0.28 Has Been Released

We are pleased to announce the release of Readium 0.28. This new version of the EPUB reading system can be used in different browsers and embedded into browser apps. One of the main components of this release is the implementation of a plugin, which provides integration with the Hypothes.is framework of annotations and bookmarks. The…

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Creating A Quiz In ActiveTextbook

With Active Textbook, quizzes can be made available right inside the book for students to interact with and test their understanding of the concepts as they are reading. The quiz feature is an interactive overlay (an overlay is an object added to books in ActiveTextbook) that is created in a book. Interactive questions can be…

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The Integration Project To Bring Open Source Annotation Support to EPUBs Has Been Completed

Evident Point, together with our esteemed partners, Hypothesis, NYU Press, Readium Foundation, and EPUBjs, is pleased to announce the successful completion of Hypothesis and Readium integration to bring open source annotation support to EPUBs through Readium. Readium is a free, open source, cross-platform reading system engine that provides the best way to read EPUB, the…

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EPUB: Server-side pagination

EPUB file format has been widely adopted as a format for digital books. EPUB specification is very comprehensive, it defines: EPUB Container, XHTML files in a zip container. EPUB Package, a way to relate components of an EPUB to each other. This may include various metadata, index, table of contents and spine information. EPUB Canonical…

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Creating Overlays in ActiveTextbook

In this post we will be exploring media overlays and how to add them to your books. Overlays are interactive elements that can be added to the content; these interactive elements can be videos, images, text, attachments, quizzes, links, audio clips, and interactive widgets. There are two ways of adding overlays to books. The first…

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Next-Generation Learning Management Systems (LMS)

According to the Horizon Report, 2017 Higher Education Edition, the next-generation Learning Management Systems (LMS) are virtual learning spaces that support personalization, meet universal design standards, play a large role in formative learning assessment, and are more flexible than traditional LMS. A market study done by Technavio, a leading global technology research and advisory company,…

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ActiveTextbook with Docker Containers

I’d like to discuss a topic that’s not directly relevant to end users but is very important to businesses hosting and maintaining ActiveTextbook. Specifically, I’ll be talking about hosting and updating ActiveTextbook server software with Docker containers. Docker is a containerization technology that has taken off in the last few years. The original ground work…

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