Patent ID: 11887254
Assignee: CHONGQING SURVEY INSTITUTE
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The method for correcting space coordinates of a three-dimensional model according to claim 8, wherein step S3 specifically comprises the following steps:
step S31, performing space coordinate correction on PagedLOD original coordinates based on the space coordinate correction matrix to obtain corrected PagedLOD space coordinates and corrected space coordinates of the origin of the three-dimensional model; and
step S32, after the PagedLOD space coordinate correction is completed, calculating the coordinates of a geometric coordinate point with the corrected PagedLOD space coordinates and the corrected space coordinates of the origin of the three-dimensional model obtained in step S31 according to the following formula:

coordinates of a geometric coordinate point=corrected PagedLOD space coordinates−corrected space coordinates of the origin of the three-dimensional model.