Efficient and batch attribute hitching method and system for large-scene three-dimensional model data

• Main Authors: YUAN JIEQI, ZHAO ZHENNI, WANG HAISONG, HONG LIANG, WU FENGMIN, LI LIN, CHENG YUXIANG, CHEN MEITE, LONG XIA, ZHANG JINGPING, YUAN CHAO, ZHANG LINGXI, KANG YANGXIAO, YU JING, HU XIAOHUI
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses an efficient and batch attribute hitching method for large-scene three-dimensional model data. The method comprises the following steps: S1, acquiring basic data of two-dimensional and three-dimensional models; s2, all the three-dimensional model data and the corresponding two-dimensional GeoJSON data are compared and unified; s3, taking the two-dimensional GeoJSON data as reference data of the three-dimensional model, and performing multi-source three-dimensional data space registration by adopting a feature point matching method; s4, loading the data subjected to spatial registration in the step S3 to a visualization front end, and obtaining a target point P coordinate and an elevation value of the visualization front end; s5, the coordinates and the elevation value of the target point P in the step S4 are substituted into the two-dimensional GeoJSON to screen the surface where the longitude and latitude are located, a matched elevation matching object is searched, if yes, the three-