| Forest-fire is a very serious environmental disaster, Forest-fire spreading is also a extremely complicated process. This paper firstly introduces the domestic and international study on the development of Forest-fire spreading. And the next is to discuss the impact of fire spreading, focusing on the major factors for analysis. Afterward, Compared the mainstream of technology and methods to choosing the best way to describe and simulate fire spreading. The next part introduces vector data and raster data, analyzes their advantages and disadvantages, and brings up a concept of combining raster data and vector data in separate way. Finally, a Forest-fire Simulation System comes up, which bases on the modernistic software engineering, object-oriented programming technology——C#, GIS embedded development and using fashion integrated development environment——Visual Studio.
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