Tactile, yes or no?

What graphics to prepare into tactile form and what not to prepare?

The following aspect must always be taken into account:

role of the graphics (see chapter Types of graphics),
substitutability by text/tables (see below)
technologies available to those who will prepare the graphics (choice between 2D, 2,5 D and 3D, see chapter Technologies available)
time possibilities
the specifics of tactile perception (see below) and the skills of the users (e.g. experience with a certain technology)

Conclusion

In most cases, for the study materials, tactile graphics for items 3 (structured information) and 4 (informative graphics), and rarely 5 (graphics with social role) are prepared.

Graphics replacement options

Just to give a few examples very briefly. There are many more possibilities and they will be added over time.

Tables

Pie chart (original)

Table (adaptation)

The pie chart could certainly be left as a tactile graphic, but exploring it and reading information would be too slow. Therefore, a suitable adaptation is to convert the exact data into tabular form.