Looking at the elevation drawing below of an object in a display case, I then drew it again in side elevation, but taking into consideration an adult, a child and a wheelchair user showing the optimal display height for them individually. This way you can easily see that the visitors would have no problem seeing the object and any written sign that it may have.
I then drew the image of the wheelchair user in plan elevation.
Lastly, I have drawn the display case as one single size with all three viewers, showing the potential sightlines.
Another interesting exercise, taking into consideration when designing an exhibition, how can you display designs in this way, making sure that all visitors will be able to see the objects and any signs that will accompany them. When you consider a wheelchair user, it’s vital that the object is clear for them to see as they are most likely unable to bend or stand, whereas an adult will probably be able to bend down slightly if needed. The same goes for children, how do you make it interesting and fun for them to keep their imagination alive.