摘要:
Methods for product data management and corresponding systems and computer-readable mediums. A method includes receiving a CAD model in the data processing system, the CAD model a plurality of features and constraints, including optional constraints. The method includes receiving a user operation to manipulate a seed feature, and identifying a plurality of optional constraints corresponding to the user operation. The method includes sorting the optional constraints and applying a sorted optional constraint. The method includes performing the user operation according to the applied constraints to produce a modified CAD model and storing the modified CAD model.
摘要:
Methods for product data management and corresponding systems and computer-readable mediums. A method includes receiving a CAD model in the data processing system, the CAD model a plurality of features and constraints, including optional constraints. The method includes receiving a user operation to manipulate a seed feature, and identifying a plurality of optional constraints corresponding to the user operation. The method includes sorting the optional constraints and applying a sorted optional constraint. The method includes performing the user operation according to the applied constraints to produce a modified CAD model and storing the modified CAD model.
摘要:
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.
摘要:
Methods for product data management and corresponding systems and computer-readable mediums. A method includes receiving a CAD model in the data processing system, the CAD model including at least a first blend that has an axis, a radius measured from the axis, and a plurality of unders. The method includes receiving a change to the radius of the first blend and selectively designating either the axis as fixed or the unders as fixed according to a property of the blend. The method includes modifying the CAD model by changing the radius according to the received change and the designated fixed axis or designated fixed unders, and storing the modified CAD model.
摘要:
Systems and methods for identifying symmetry relationships in product data management (PDM) systems. A method includes receiving a 3D model including a plurality of components and identifying a plurality of target components from the plurality of components. The method includes identifying a symmetry plane in the 3D model and determining the location of each of the target components with respect to the symmetry plane. The method includes adding the target components to respective groups according to the determined locations, and creating an equivalence class for each group of target components. The method includes storing a symmetry relationship between the created equivalence classes.
摘要:
Methods for pattern recognition and corresponding systems and computer-readable mediums. A method includes receiving a set of two-dimensional (2D) points. The method includes identifying neighbor points for each of a plurality of points in the set and finding at least one indicated pattern between points in the set. The indicated pattern can be one of a linear pattern, a rectangular pattern, a skew pattern, or a circular pattern. The method includes storing pattern data corresponding to the found indicated pattern.
摘要:
A system, method, and computer readable medium. A method includes receiving a geometric model in an initial state including at least a first feature and a second feature, at least one of the first and second features being a removal feature. The method includes detecting an interaction between the first and second features, and applying a dependency rule to the first feature and the second feature. The method includes performing a variational edit process including removing the first feature and the second feature according to the dependency rule. The method includes solving and recreating the edited model.
摘要:
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.
摘要:
Methods for product data management and corresponding systems and computer-readable mediums. A method includes receiving a geometric model including plurality of blends and identifying a blend ribbon that includes at least two of the plurality of blends. Each blend in the blend ribbon is mutually dependent on at least one other blend in the blend ribbon. The method includes selecting a blend ribbon breaker corresponding to the blend ribbon and designating a plurality of blends in the blend ribbon as reblendable blends, based on the blend ribbon breaker. The method includes reblending the reblendable blends to produce a modified geometric model and storing the modified geometric model.
摘要:
Methods for product data management and corresponding systems and computer-readable mediums. A method includes receiving a geometric model including plurality of entities and receiving existing conditions corresponding to the geometric model. The method includes receiving an operation to be performed on a selected entity of the geometric model. The method includes propagating through the geometric model from the selected entity to other entities of the geometric model, according to the existing conditions, and adding the selected entities and the other entities to a variational system. The method includes performing a variational solve of the variational system according to the operation to produce modified entities and applying the modified entities to the geometric model to produce an edited geometric model.