Morphing of watertight spline models using as-executed manufacturing data
Methods, computer systems, and computer-readable memory media for determining a warp function. An as-designed watertight spline model of an object is received. A point cloud and the as-designed watertight spline model are used to construct a model of the object. The point cloud is obtained from a physical or virtual (simulated) inspection and/or manufacturing process. A warp function is determined based on a difference between the as-designed watertight spline model and the constructed model. The warp function is a continuous function quantifying differences between the as-designed model and the constructed model. As-preprocessed instructions for a simulation or analysis process of the object are determined based on metadata of the as-designed watertight spline model and the warp function. The simulation or analysis process is performed on the object according to the as-preprocessed instructions to produce as-simulated data, and the as-simulated data is stored in a non-transitory computer-readable memory medium.
1 . A computer-implemented method, comprising:
performing, by a computer:
receiving an as-designed watertight spline model of an object, wherein the as-designed watertight spline model is described in a Computer-Aided Design (CAD) model domain;
constructing a model of the object based at least in part on a point cloud and the as-designed watertight spline model, wherein the constructed model comprises a watertight spline model, wherein a spline structure of the constructed model is based at least in part on a spline structure of the as-designed watertight model;
determining a warp function based on a difference between the as-designed watertight spline model and the constructed model, wherein the warp function comprises a continuous function describing differences between the constructed model and the as-designed watertight spline model, wherein the warp function comprises a spline model with a spline structure commensurate with the as-designed watertight model;
determining as-preprocessed instructions for a simulation or analysis process of the object based at least in part on metadata of the as-designed watertight spline model and the warp function, wherein the as-preprocessed instructions are described in a Computer-Aided Engineering (CAE) model domain;
performing the simulation or analysis process on the object according to the as-preprocessed instructions to produce as-simulated data; and
storing the as-simulated data in a non-transitory computer-readable memory medium.
2 . The computer-implemented method of claim 1 ,
wherein the as-preprocessed instructions comprise one or both of loading information and boundary conditions.
3 . The computer-implemented method of claim 1 ,
wherein the as-preprocessed instructions are determined further based at least in part on metadata associated with a manufacturing or inspection process for the object.
4 . The computer-implemented method of claim 1 ,
wherein the point-cloud used to construct the constructed model is obtained from a simulated or physical inspection and/or manufacturing process.
5 . The method of claim 1 , further comprising:
receiving semantic product manufacturing information (PMI) for one or both of the as-designed watertight spline model and the constructed model,
wherein constructing the model of the object is performed further based at least in part on the semantic PMI.
6 . The method of claim 5 ,
wherein constructing the model based at least in part on the semantic PMI comprises:
determining one or more constraints of the object based on the semantic PMI; and
interpolating between adjacent points of the point cloud based on the one or more constraints, wherein the one or more constraints are determined based at least in part on a sampling density of the point cloud indicated by the semantic PMI.
7 . The method of claim 5 ,
wherein constructing the model based at least in part on the semantic PMI comprises:
determining one or more control point derivatives for the constructed model based at least in part on geometric constraints indicated by the semantic PMI.
8 . The method of claim 1 ,
wherein constructing the model of the object based at least in part on the point-cloud and the as-designed watertight spline model comprises performing an interpolation or approximation procedure of points of the point-cloud to the as-designed watertight spline model.
9 . The method of claim 1 , further comprising:
displaying, on a display, a colorized visual representation of the warp function.
10 . The method of claim 1 ,
wherein constructing the model of the object based at least in part on the point-cloud and the as-designed watertight spline model comprises:
performing an interpolation or approximation procedure utilizing a spline structure of the as-designed watertight spline model to determine a plurality of degrees, control points and knot vectors of the constructed model.
11 . The method of claim 10 , further comprising:
determining a discrepancy between the knot vectors of the constructed model and knot vectors of the as-designed watertight spline model; and
performing knot insertion on the knot vectors of the as-designed watertight spline model to remove the determined discrepancy.
12 . The method of claim 1 ,
wherein the constructed model comprises a same spline structure as the as-designed watertight spline model.
13 . The computer-implemented method of claim 1 , further comprising:
determining as-planned instructions for an inspection process of the object based at least in part on metadata of the as-designed watertight spline model and the warp function, wherein the as-planned instructions are described in a Computer-Aided Inspection (CAI) model domain;
performing the inspection process on the object according to the as-planned instructions to produce as-inspected data; and
storing the as-inspected data in the non-transitory computer-readable memory medium.
14 . A non-transitory computer-readable memory medium comprising program instructions which, when executed by a processor, cause a computer to:
receive an as-designed watertight spline model of an object, wherein the as-designed watertight spline model is described in a Computer-Aided Design (CAD) model domain;
construct a model of the object based at least in part on a point cloud and the as-designed watertight spline model, wherein the constructed model comprises a watertight spline model, wherein a spline structure of the constructed model is based at least in part on a spline structure of the as-designed watertight model;
determine a warp function based on a difference between the as-designed watertight spline model and the constructed model, wherein the warp function comprises a continuous function describing differences between the constructed model and the as-designed watertight spline model, wherein the warp function comprises a spline model with a spline structure commensurate with the as-designed watertight model;
determine as-preprocessed instructions for a simulation or analysis process of the object based at least in part on metadata of the as-designed watertight spline model and the warp function, wherein the as-preprocessed instructions are described in a Computer-Aided Engineering (CAE) model domain;
perform the simulation or analysis process on the object according to the as-preprocessed instructions to produce as-simulated data; and
store the as-simulated data in the non-transitory computer-readable memory medium.
15 . The non-transitory computer-readable memory medium of claim 14 ,
wherein the as-preprocessed instructions comprise one or both of loading information and boundary conditions.
16 . The non-transitory computer-readable memory medium of claim 14 ,
wherein the as-preprocessed instructions are determined further based at least in part on metadata associated with a manufacturing or inspection process for the object.
17 . The non-transitory computer-readable memory medium of claim 14 ,
wherein the point-cloud used to construct the constructed model is obtained from a simulated or physical inspection and/or manufacturing process.
18 . The non-transitory computer-readable memory medium of claim 14 , wherein the program instructions are further executable to cause the computer to:
receive semantic product manufacturing information (PMI) for one or both of the as-designed watertight spline model and the constructed model,
wherein constructing the model of the object is performed further based at least in part on the semantic PMI.
19 . The non-transitory computer-readable memory medium of claim 18 ,
wherein, in constructing the model based at least in part on the semantic PMI, the program instructions are further executable to cause the computer to:
determine one or more constraints of the object based on the semantic PMI; and
interpolate between adjacent points of the point cloud based on the one or more constraints, wherein the one or more constraints are determined based at least in part on a sampling density of the point cloud indicated by the semantic PMI.
20 . The non-transitory computer-readable memory medium of claim 18 ,
wherein, in constructing the model based at least in part on the semantic PMI, the program instructions are further executable to cause the computer to:
determine one or more control point derivatives for the constructed model based at least in part on geometric constraints indicated by the semantic PMI.