This paper presents a simulation-based method for visualizing the development of multicellular structures in two and three dimensions. The neighborhood relations between the cells are determined by a simulated developmental process, expressed using the formalism of map L-systems and its extension, cellwork L-systems. The cell shapes result from mechanical cell interactions. Two types of forces are considered: the osmotic pressure within cells, and the tension of cell walls. The method is illustrated using examples based on biological data.
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