Coordinate conversion method of multi-structure live-action three-dimensional model

The invention relates to the technical field of computer networks, and particularly discloses a coordinate conversion method for a multi-structure live-action three-dimensional model, which mainly comprises the following steps of: setting conversion information, processing meta-files, analyzing file catalogs, accessing OSGB (Open Service Gateway Broadcasting) files, converting coordinates and outputting the files. According to the method, the coordinate conversion requirements of the OSGB files of various node arrangement structures are fully considered during access and coordinate conversion of the OSGB files, the OSGB files originally produced by ContextCapture software are met, the OSGB files of special structures such as secondary repair and replacement and non-participation in segmentation are also met, and high adaptability and compatibility are achieved; in the coordinate conversion process, the texture picture of the leaf node is processed by adopting a file stream mode of leading out and rewriting, s