In order to improve the construction efficiency of three-dimensional basic design scene of power transmission and transformation project,the construction of three-dimensional basic design scene of power transmission and transformation project based on GIM technology is proposed.The UAV scans the environmental information of the target area,and uses the Grid modeling method to generate a three-dimensional topographic map.Taking the power grid information model technology as the core,a three-dimen-sional parametric modeling method is designed.By adjusting the parameter values,the ontology structure of power transmission and transformation project can be quickly edited.After coordinate system conversion,the power transmission and transformation ontology structure is placed in the three-dimensional terrain scene to synthesize the three-dimensional basic design scene of pow-er transmission and transformation project.Then,through LOD detail model,the efficient rendering of visual 3D scene is real-ized.The experimental results show that the proposed method takes 21.5 min to build a 3D scene model,which is 70.22%lower than other methods,and the efficiency is greatly improved,so it has superior application performance.
GIMpower transmission and transformation project3D sceneparametric modelingcoordinate conversion3D terrain
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