Research On Global Wind Farm Dynamic Visualization Method Based On WebGL

With the development of big data,AI artificial intelligence and other Internet technologies,the digital earth has begun to diversify,informatize and intelligentize,the digital earth will also focus more on platform construction and the solution of major problems such as social welfare,and a new generation of digital earth products based on B/S architecture is gradually becoming the main research hotspot.However,there are two main drawbacks of this architecture,the first drawback is the poor dynamic visualization effect of the Web side,that is,the rendering effect of the scientific calculation method on the vector field data is poor,which cannot meet the actual requirements;The second disadvantage is the poor smooth rendering of large scenes,and the more common solution nowadays is to select small scenes for dynamic visualization.Therefore,aiming at the two drawbacks of dynamic visualization effect and data rendering efficiency on the web side,this paper adopts numerical integrals for visual simulation based on particle system and combines a variety of acceleration methods for rendering acceleration of wind field data,and combines the above experimental methods and steps to realize a global wind field data dynamic visualization prototype system based on the web side.According to the rendering effect of wind field data,the bilinear interpolation algorithm is used to improve the position distribution of data,the position point of wind field data is calculated by the Longekuta algorithm based on Web GL,and the algorithm is improved by changing the integration step size for poor trajectory generation effect,so as to improve the trajectory display effect.After experimental evidence,the use of this improved algorithm to simulate the trajectory of the particle system is more in line with the actual situation,the visual display effect is more delicate,and satisfactory results can be obtained,so the visualization algorithm used in this paper has certain innovation.In view of the disadvantages of computing efficiency of B/S architecture,this paper improves computing efficiency through Web Worker multi-threading,makes full use of the multi-threaded parallel computing power of the computer,and processes the logical computing part.In view of the graphics acceleration capability of GPU,this paper creates multiple buffer objects to process related particle rendering work in the GPU,so as to reduce the data exchange between the CPU and the GPU and improve the computing efficiency of the entire system.In general,the improved four-order Longekuta algorithm in this paper effectively improves the visualization effect,a variety of acceleration algorithms effectively improves the smoothness of operation,effectively solves the two main problems in Webside visualization,the prototype system designed based on Cesium has a good display effect,compared with Null School,we know that the prototype system in this paper has a good visual display effect,and combines global terrain elements to conform to the development direction of geographic information technology and the development direction of digital earth.It is forward-looking,and has certain reference significance for weather forecasting,meteorological analysis and other information decision-making,and is of great significance to the construction of digital earth.Figure [43] Table [3] Reference [8]...