Making Graphs And Plots Accessible For The Blind

During my computer science masters, there was a need to analyse data through plots. Analysing graphs and plots while blind is near impossible. Unable to see the lines or bars means you rely on sighted assistance or jumping through the data points with a screen reader. Jumping through the data points is easy with 20 or so data points, increase that to 20,000 and things get significantly harder.

With these issues in mind i focussed my dissertation around increasing accessibility to data. Part of the project is an audio plotting system built in python.

The intention was to create a system that was easy and fast to use. Plots can be generated for line, bar and histogram by passing through most data structures. Anything that contains numbers and is itterable will generate an audio stream. Below is a brief video demonstrating a test procedure for line plots.

Currently, the plotting works well under MacOS and Linux, Windows is not currently supported. Windows support is reliant on some core audio modules that are not simple to install. As soon as i find a simple solution I will update the python code to support windows.

You can grab the python module here. Instructions are included in the git repository on how to use the module.

I am happy to continue work on the module if there are any features people require. I hope others find this useful especially in educational settings, as this module enables blind and visual impaired students to generate plots as easily as their sighted counterparts.

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Easy Access To Emoji Entry With VoiceOver For MacOS, IPad And IPhone

Emoji’s are something i have never had the opportunity to fully explore. As a blind person i have found them difficult to use under MacOS and iOS. There exists no simple way to search and use emoji. Apple does however, offer a fantastic system to understand emoji, so i have always felt left out. I want to use them, its just not easy to.

Well all has now changed. While, exploring accessible ways to generate slides for presentations i came across GitHub emoji short codes. A text based system that is used to generate the emoji, so for example :tada: is converted to a 🎉 emoji. This offers the entire emoji character set through text. Perfect!

Now enter another fantastic Apple tool, text replacements. With text replacements i could use the same GitHub shortcodes across MacOS and iOS to have access to the full emoji character set. This has given me complete access to the emoji set with VoiceOver across all my devices, its fantastic. The steps below will enable you to get access across all your devices.

Emoji setup

  1. follow the instructions here

That’s it, there is only one step!

I hope you enjoy full access to the emoji character set and keep an eye out for my accessible slides post!

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