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公开(公告)号：US11887254B2
公开(公告)日：2024-01-30
申请号：US17437685
申请日：2021-02-04
发明人： Zejun Xiang , Zhiyong Zhou , Yan Zhang , Liangchao Chen , Kaiquan Hu , Hong Ma , Junqian Zhang
CPC分类号： G06T17/05 , G06F17/16 , G06T19/20 , G06T2210/32 , G06T2219/2016
摘要： A method for correcting space coordinates of a three-dimensional model includes: step S1, reading information of an original coordinate frame of a three-dimensional model in a first format and the origin of coordinates of the model; reading information of nodes from three-dimensional model data in the first format, and calculating original coordinates of the nodes; step S2, calculating parameters of correction between the original coordinate frame and a target coordinate frame; step S3, transforming and correcting the coordinates of the origin and nodes of the three-dimensional model in the first format one by one by using the space coordinate correction matrix to obtain information of coordinate points of the three-dimensional model in the second format; and step S4, storing a file of the three-dimensional model in the second format with corrected space coordinates. Also, a method for encrypting space coordinates of a three-dimensional model is provided.
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公开(公告)号：US20220414982A1
公开(公告)日：2022-12-29
申请号：US17437685
申请日：2021-02-04
发明人： Zejun Xiang , Zhiyong Zhou , Yan Zhang , Liangchao Chen , Kaiquan Hu , Hong MA , Junqian Zhang
摘要： The present disclosure provides a method for correcting and encrypting space coordinates of a three-dimensional model. The method for correcting space coordinates of a three-dimensional model includes: step S1, reading information of an original coordinate frame of a three-dimensional model in a first format and the origin of coordinates of the model; reading information of nodes from three-dimensional model data in the first format, and calculating original coordinates of the nodes; step S2, calculating parameters of correction between the original coordinate frame and a target coordinate frame based on space coordinates of four or more control points in the original coordinate frame in the first format and corresponding space coordinates of the control points in the target coordinate frame in a second format, and constructing a space coordinate correction matrix; step S3, transforming and correcting the coordinates of the origin and nodes of the three-dimensional model in the first format one by one by using the space coordinate correction matrix to obtain information of coordinate points of the three-dimensional model in the second format; and step S4, storing a file of the three-dimensional model in the second format with corrected space coordinates. Thus, the production efficiency is improved.
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