Data organization method suitable for three-dimensional dynamic display of flood risk map

• Main Authors: PENG SHAOMING, HE LIUPENG, WANG JUNLIANG, WANG YU, ZHANG NAN
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a data organization method suitable for three-dimensional dynamic display of a flood risk map. The method comprises the steps of S1, splitting flood routing grids according toa time sequence; S2, for each sub-grid generated by splitting, if the number of vertexes of each sub-grid is greater than or equal to 65536, performing region division on each sub-grid according to spatial distribution; S3, regarding each sub-grid generated through region division as a high-density grid if the number of vertexes of each sub-grid is still greater than or equal to 65536, and furtherprocessing the high-density grid to generate a corresponding simplified grid; S4, for each grid, respectively storing the basic data of the grid and the state data of each moment; and S5, performingtwo-dimensional indexing on the flood routing grid according to the spatial distribution and the time distribution. According to the method, the space-time characteristics of the flood risk map are fully utilized, targeted grid