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目前用于模拟林火蔓延的模型主要是相邻单元模型和波传播模型,他们的优缺点具有明显的互补性。本文基于计算机图形技术,考虑已有模型的优点,设计了一个新的蔓延模型。本文介绍了新模型的设计方案与实现方法,以及影射变换,拓扑关系的解决方案。研究了它们的优缺点以及火线的失真等问题。通过理论分析和案例研究,新模型大大改进了林火蔓延的计算机模拟过程,因此本模型可不受地理环境和火行为复杂性的限制,提供林火发展的实时全景图象。
At present, the models used to simulate the spread of forest fire are mainly adjacent cell models and wave propagation models, and their advantages and disadvantages are obviously complementary. In this paper, based on the computer graphics technology, taking into account the advantages of existing models, a new model of spread is designed. This article describes the design and implementation of the new model, as well as mapping transformation, topology solutions. Studied their advantages and disadvantages as well as the distortion of FireWire and other issues. Through theoretical analysis and case studies, the new model greatly improves the computer simulation process of forest fire spread. Therefore, this model can provide real-time panoramic image of forest fire development without being limited by the complexity of geographical environment and fire behavior.