ABSTRACT
Drawing is one of the most intuitive and innate methods of human communication. Sketching has been used to define graphical objects in a user interface. Non-calibrated live sketching is appropriate whenever specific data is not available or precise results are not needed. Graphical user interfaces representing either artificial concepts or natural objects and phenomena are based on a set of graphical objects. Two other developments the use of dynamic background images, and the expansion of live sketching to network environments are planned by the authors. At the present time, the people are mainly interested in ecological movies and attempts to use sketching tools to quickly simulate their evolution. It has been shown that modelling of the change of shape is the key step in interactive sketching. To simulate the evolution of shape using sketching, a cellular automata formulation has been proposed. To illustrate the proposed approach, an application to an oil spill problem was presented.
