The term data visualization refers to the process of transforming data, which is generated by means of measurements of various processes taking place in the physical world or created by computer applications such as simulations, to pictures. The purpose of this transformation is 2-fold: (1) to help users understand their data better and easier and (2) to let them discover unknown facts about the underlying phenomena from which data are derived. To be able to do this, several classes of visualization methods have been developed, each of them focusing on a specific type of data, users, or application domain. This entry describes the landscape of data visualization methods and their relationships with science and engineering. Particular attention is devoted to the increasing role of visualization ...
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