Siemens Product Lifecycle Management Software Inc.

Ugs Corp.

Siemens Industry Software Gmbh

Daniel C Staples

Douglas Joseph King

Howard Charles Duncan Mattson

Aditya N Gurushankar

Prasad Pingali

Mallikarjuna Gandikota

Kristopher C Kasprzak

Jeffrey A Walker

Joseph J Bohman

Navinchandra Pai

Anthony E Tassone

Ganapathy S Kunda

Venugopala Krishna Vytla

Arthur S Patrick

Michael R Mathis

Vadiraj Mysore

Ravikanth Vootukuri

Timothy Anderson

Ronald Conerly

Neil G Mackay

Howard C D Mattson

Yong-Ming Li

Kris C Kasprzak

A system, method, and computer program for modifying a solid model representation that is manipulated in a computer having software instructions for design, comprising: a computer system, wherein the computer system includes a memory, a processor, a user input device, and a display device; a computer generated geometric model stored in the memory in the memory of the computer system; and wherein the computer system receives user input and accesses at least one data file having a plurality of geometric model definitions that define a geometric model; converts the geometric model definitions into a geometric representation of the geometric model; calculates a plurality of geometric conditions between at least one geometry identified by a user and the geometric model to create a set of constraints; and calculates a modified geometric model with a modified geometry according the set of constraints to display to the user; and appropriate means and computer-readable instructions.

System and method for modifying geometric relationships in a solid model

A method for use in CAD modeling software to define product structure based on virtual components created independent from geometry and without the need to create files on disk. With the additional capability of assigning geometry to the virtual components of the product structure that sets and orients the virtual components and manages multiple occurrences of like components. Further, the virtual component are published into real components with automatic 3D file creation completed.

Creation and publishing of virtual components

A system, method, and computer readable medium. A method includes receiving a model tree that defines a three-dimensional (3D) model. The model tree includes a history-free parent node that defines a complex 3D model and a plurality of history-based child nodes that define additional features that modify the complex 3D model. The method includes computing the 3D model, where the computed 3D model combines the parent node and the child nodes. The method includes displaying the computed 3D model as the complex 3D model modified by the additional features defined by the child nodes.

Integrated history-free and history-based modeling

Most three dimensional geometric modeling programs employ a feature-based parametric modeling technique. A modification attempted by a user in a feature-based parametric modeling may provide a result different than that expected by the user, since most edits require a 'roll back' of a history tree to the state wherein the geometry was originally created. Upon completing the edit, the tree rolls forward, taking into account the changes you have made. A problem arises when a parent feature is destroyed and now a child feature can no longer properly bind. The disclosed invention solves this problem by rolling back the tree to find the last successful bind made by the child, and then roll the model forward such that all downstream binding occurs with the successful bind in tact.

Binding using rollback

A method and related CAD system and computer readable medium for creating a dimensioned object model in a CAD system, including automatically associating editable dimensions with an object model in the CAD system. The method includes receiving 2D CAD data, the 2D CAD data including dimension information, and creating a 3D model corresponding to the 2D CAD data. The method also includes associating the dimension information with features of the 3D model and storing the 3D model and associated dimension information in the CAD system. The dimension information can thereafter be edited to automatically produce corresponding changes in the 3D model. Other methods are also described.

System and method for producing editable three-dimensional models

A system, method, and computer program for determining a simplified representation of an assembly model comprising the steps of saving a plurality of display states and configuration settings of an assembly model in a design representation; translating said design representation into a simplified representation by use of a visibility solution; and storing said simplified representation and said design representation in an assembly document and appropriate means and computer-readable instructions.

System and method to determine a simplified representation of a model

A system and method for improving user feedback during graphical edits by dynamically propagating each incremental edit through the dependency tree and displaying real-time updates to the graphic representation as the updates are being made. By updating the image through the entire dependency tree at the earliest possible time, without waiting for the user to complete his edit or to perform an action which manually indicates an update, the user is given improved feedback during the editing process.

System and method for dynamic propagation and display of graphical edits

A system, method, and computer program product for performing edits on related curves by automatically defining an associative entity that is upstream of either curve being connected. The connecting entity is called an 'intermediary'. When creating a connection between curves, irrespective of where they appear in the associative tree, their geometry is made dependent on a common intermediary that is placed upstream of both curves in the tree. With this structure, both curves are related to the intermediary but retain all the properties of being connected to each other. Any edit performed to either curve is redirected through the intermediary such that both curves are simultaneously modified, providing the user with bi-directional propagation of edits. The user does not need to keep track of the order that the curves were related.

Bi-directional propagation in a curve network

A system, method, and computer program product which allows more versatile manual and automatic edits by embedding behaviors in the curve elements. These imbedded behaviors allow intelligent shape preservation during a curve edit. Each curve carries a behavior property that describes how it should react when edited. This means that the curve and graphics system have full knowledge of the right edit type to make, even when triggered by an outside source, such as a re-compute of an object at a higher level in the feature tree.

Growing community of inventors

Cape Elizabeth, ME, United States of America

Daniel C Staples