In military-themed movies and television works, we often see commanders standing in front of a terrain model studying combat plans. According to topographic maps, aerial photographs or on-the-spot topography, the model made of sand, war chess and other materials in a certain proportion is a sand table.
The sand table has the characteristics of strong three-dimensionality, intuitive image, simple production, economical and practical.
It is mainly used by commanders to study terrain and combat plans and drill tactics.
In terms of psychotherapy and testing, the sandbox is widely used to discover and solve psychological problems. Under the guidance of a psychologist, the person being treated or tested can set the situation in the sandbox according to their wishes. Show the plot or appearance to judge certain psychological things