Tactile Graphic Exploration
I explored the maps of Australia found in the TGIL. As an Australian citizen who was educated in Australia, I am somewhat familiar with basic facts of Australian geography.
I used the zoom in/out commands to explore the maps in detail and to access the braille labels. I also found the commands that moved to specific locations on the image (top left, bottom left, top center, etc.) to be valuable when an image had been expanded and no longer fit as a whole on the display. These commands are documented in the User Guide and appear in the context menu, but have not been included in the training module.
When I previously had an opportunity to interact with the graphics viewer on a Monarch, I noticed that some diagrams such as bar charts didnāt fit vertically on the display when zoomed in. I think the rotate command would be useful here, allowing the user to switch to landscape orientation so that, for example, the bars of a bar chart are shown horizontally rather than vertically.
Adjusting the Level of Detail
This is often a necessity. In the default image size, most of the details are hidden, but a good overview of the entire graphic is provided - a useful starting point in my opinion. Zooming in allowed me to read the braille labels and to find boundaries on the Australian territories map.
Using Tactile Graphics to Supports Students and Professionals
I donāt work in blindness services. However, I have participated in graphics-related accessibility research and related projects, and I can respond from this perspective. I think there are more questions than answers, as the Monarch creates possibilities that havenāt been previously investigated owing to the lack of graphics-capable tactile displays out in the field in the hands of users. There are two aspects: students and professionals as readers of graphics, and as creators of graphical content.
Graphics Interpretation
The Monarch allows for almost instant creation of tactile graphics. However, to make sense of an image presented in a publication, presentation, Web page or other source found in higher education or in a professional context, it may need transformation to ensure that the image is intelligible as a tactile graphic. There are research questions here. Is transforming an image to make it more intelligible and to provide braille labels a problem that could be solved sufficiently well by creating or adapting machine learning models? Would it be useful to equip visual interpretation services such as AIRA or Be My Eyes with the ability to create or edit images and then transmit them to a Monarch?
The Monarch enables tactile graphics to be manipulated quickly and easily, raising the research question of what strategies of reading and exploration are most effective for different tasks. In addition, would it be useful to develop an interactive tactile graphics tutorial based on insights from cognitive science - an intelligent tutoring system - to help students to enhance their tactile graphics interpretation skills, as a supplement to the work of teachers?
Graphics Creation
Students and professionals, especially in graphics-intensive disciplines, are likely to encounter the challenge of creating visually effective graphics for inclusion in publications, presentations, academic assignments or other work. Examples of such graphics include graphs, charts and diagrams. The Monarch could support graphics preparation by allowing the resulting images to be read and explored during or after creation. There is the potential to develop accessible vector graphics editing tools that make use of a tactile display. Also, could software that produces graphics automatically be configured or adapted to generate intelligible tactile graphics, including braille labels?
For example, in the peer review process for a book chapter that I wrote, I was asked to add diagrams depicting the relationships among the main ideas under discussion. This was an interesting challenge for me as a totally blind person. I used GraphViz to create the diagrams, learning from documentation found on the Web. I needed to rely on helpful colleagues to check the graphical output so I could make improvements. I think the Monarch could make this task easier. There are other, similar tools such as TikZ used in academic and research contexts that could prove useful in creating graphics independently.
Challenges
I have addressed a range of challenges in the preceding comments. To summarize:
- Developing effective graphics interpretation and exploration strategies,
- Developing or adapting software for graphics creation tasks, and
- Converting graphics via an automated process or human intervention from publications or other sources found in higehr education and the professions.
I think the solutions are a combination of effective education in tactile graphics, research, and innovative software projects taking advantage of tactile displays.
Comparison with Embossed and Other Tactile Graphics
I think the main differences are clear: graphics on the Monarch are smaller and of lower resolution than those produced by embossers, raised line drawing kits and other conventional techniques. However, graphics on the Monarch can be manipulated in real time, enabling details to be disclosed and hidden in ways that are impossible in static formats such as embossed graphics.
It is also interesting to compare graphics on the Monarch with the capabilities of other multiline braille and tactile displays. I think the uniform distance between pins in both dimensions on the Monarch is a significant advantage in displaying tactile graphics. Some multiline displays can only represent standard braille cells, with their wider inter-cell spacing, requiring tactile graphics to be composed of braille instead of being built from an array of equally spaced dots. The Monarch offers higher resolution than, for example, the Graphiti display, but without supporting multiple pin heights. A further advantage of the Monarch is that it can present very readable braille as well as tactile graphics using the same pin array.