Abstract: A computing system may include an object representation engine and an object incarnation engine. The object representation engine may be configured to define a computer-aided design (CAD) object in a CAD model as a combination of an object boundary comprised of bounding faces that encapsulate the CAD object and a microstructure that defines an internal geometry of the CAD object in a procedural representation. The procedural representation may be a representation of the internal geometry of the CAD object in a non-incarnated form. The object incarnation engine may be configured to incarnate, via the procedural representation of the microstructure, the internal geometry of the CAD object into a geometric representation to perform a CAD operation on the CAD object.

Abstract: A method for representing a product using data in different data processing formats comprises deriving data relating to one or more first parts of the product in a first format and deriving data relating to one or more second parts of the product in a second format. The first format includes mesh data and the second format includes a classic geometric representation. In a data processing system, at least one first part of the product including mesh data is selected and at least one second part of the product including classic geometric representation data is selected.

Abstract: A method for representing a product using data in different data processing formats comprises deriving data relating to one or more first parts of the product in a first format and deriving data relating to one or more second parts of the product in a second format. The first format includes mesh data and the second format includes a classic geometric representation. In a data processing system, at least one first part of the product including mesh data is selected and at least one second part of the product including classic geometric representation data is selected.

Abstract: A method for a CAD system, a CAD system, and instructions for a CAD system. A method includes receiving an object model including a plurality of features. The method includes creating a blend as part of the object model, using at least one of the features, and removing the used features. The method includes creating a construction body corresponding to the object model, and storing the removed features in the construction body. The method includes performing a CAD operation on the object model using the features stored in the construction body.

Abstract: A method includes receiving a representation of a spun tool and receiving a path for the spun tool. The method also includes calculating a profile of the spun tool and simulating movement of the spun tool over the path. The method includes determining critical positions along the path at which the composition of the profile of the spun tool changes based on the path, and re-calculating the composition of the profile of the spun tool for each side of a critical position. The method further includes re-calculating the shape of the profile of the spun tool at non-critical positions of the path. The method further includes determining a volume defined by moving the spun tool along the path between a first critical position and a second critical position, changing the profile of the spun tool at each critical position, and calculating a total volume based on the path.

Abstract: A CAD system, method, and computer readable medium. A method for modeling a topological structure includes receiving a definition of a topological structure. The method also includes receiving a definition of a construction element and receiving a geometrical relationship between the construction element and an element of the topological structure. The method further includes receiving a change to the topological structure and, in response to the change, changing the first construction element according to the geometrical relationship.

Abstract: A method for a CAD system, a CAD system, and instructions for a CAD system. A method includes receiving an object model including a plurality of features. The method includes creating a blend as part of the object model, using at least one of the features, and removing the used features. The method includes creating a construction body corresponding to the object model, and storing the removed features in the construction body. The method includes performing a CAD operation on the object model using the features stored in the construction body.

Abstract: A CAD system, method, and machine-readable medium. A method selecting a first plurality of points on an original surface of a 3D model and producing a first plurality of deformed points corresponding to the first plurality of points. The method includes creating a first deformed surface from the first plurality of deformed points. The method includes selecting a second plurality of points on the original surface of the model and producing a second plurality of deformed points corresponding to the second plurality of points. The method includes modifying the first deformed surface according to the second plurality of deformed points, including matching the first deformed surface to other deformed features of the model, and storing the deformed surface as part of a deformed model.

Abstract: A CAD system, method, and computer readable medium. A method for modeling a topological structure includes receiving a definition of a topological structure. The method also includes receiving a definition of a construction element and receiving a geometrical relationship between the construction element and an element of the topological structure. The method further includes receiving a change to the topological structure and, in response to the change, changing the first construction element according to the geometrical relationship.