The invention relates to the technical field of disaster emergency management and analog calculation, and relates to a dike scene rapid generation method and
system based on graph calculation and
topological optimization. The method comprises the following specific steps: S1, marking scene key information based on a GIS map; s2, analyzing the marked geometric data, and constructing a topological relation based on graph calculation; s3, after the topological relation is analyzed, elements needed by model calculation are extracted from the topological relation, and attributes of the elements are defined; s4, generating a rescue
traffic network based on the defined element attributes and geometric information; s5, verifying the generated geometric data, the topological relation, the model elements and the
traffic network; and S6, after the
verification is passed, integrating all data to generate a complete
simulation scene and outputting the
simulation scene. According to the method, the
simulation environment suitable for flood spread and breach scour calculation is rapidly constructed by marking key information of dike, breach point and simulation range scenes and combining geometric topological relation analysis and model element definition, and efficient and reliable
technical support is provided for
emergency response and auxiliary
decision making of dike breach disasters.