Patents by Inventor Frederic Letzelter

Frederic Letzelter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170177771
    Abstract: Embodiments provide methods and systems for modifying a finite element mesh representation of a three-dimensional model. A method according to an embodiment defines a symmetric constraint of a finite element mesh where the finite element mesh represents a subject 3D model and the symmetric constraint comprises two asymmetric zones of the finite element mesh to be modified symmetrically. Next, corresponding finite elements between the two asymmetric zones are identified and a topological manipulation to at least one of the identified corresponding finite elements is performed. In response, the topological manipulation is performed symmetrically on the identified finite element corresponding to the at least one finite element. In such an embodiment, performing the manipulation symmetrically results in the two asymmetric zones being modified symmetrically and represents a symmetrical topological modification in the subject 3D model.
    Type: Application
    Filed: August 16, 2016
    Publication date: June 22, 2017
    Inventors: Frederic Letzelter, Jean-Marc Chauvet, Christophe Dufau
  • Publication number: 20170177770
    Abstract: Embodiments provide methods and systems for modifying a finite element mesh representation of a three-dimensional model. A method according to an embodiment defines a symmetric constraint of a finite element mesh where the finite element mesh is a representation of a subject 3D model and the symmetric constraint comprises two asymmetric zones of the finite element mesh to be modified symmetrically. Next, corresponding finite elements between the two asymmetric zones are identified and a manipulation to at least one of the identified corresponding finite elements is performed. In response, the manipulation is performed symmetrically on a second or more of the identified corresponding finite elements where the second or more finite elements were identified as corresponding to the at least one finite element. In such an embodiment, performing the manipulation symmetrically results in the two asymmetric zones being modified symmetrically and represents a symmetrical modification in the subject 3D model.
    Type: Application
    Filed: August 16, 2016
    Publication date: June 22, 2017
    Inventors: Frederic Letzelter, Jean-Marc Chauvet, Christophe Dufau
  • Patent number: 9472024
    Abstract: A computer-implemented method for designing a three-dimensional modeled object comprising the steps of providing a three-dimensional designing scene (41) in a display screen (40); and providing a graphical tool (42) in a first area (43) with a reduced size in the display area (44) of the screen (40) comprising at least one image (45, 46, 47). The graphical tool (42) is permanently superimposed over the scene (41).
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 18, 2016
    Assignee: Dassault Systemes
    Inventors: Frederic Letzelter, Laura Peythieux, Mathieu Gunther, Amelie Renard
  • Publication number: 20160188191
    Abstract: A computer-implemented method of setting a parameter. The method comprises detecting a user input on a first location on a graphical user interface, the user input being maintained. The method further comprises displaying on the graphical user interface a pie menu centered on the first location, the pie menu comprising at least one angular sector that is associated with a customizable parameter. The method also comprises detecting a second location of the user input on the graphical user interface in the at least angular sector, and selecting among a set of values, a value of the customizable parameter by displacing the user input from the second location to a third location.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 30, 2016
    Applicant: DASSAULT SYSTEMES
    Inventors: Amelie RENARD, Laura PEYTHIEUX, Frederic LETZELTER
  • Publication number: 20160188192
    Abstract: A computer-implemented method of setting a parameter. The method comprises detecting a user input on a first location on a graphical user interface, the user input being maintained. The method also comprises displaying on the graphical user interface a pie menu centered on the first location, the pie menu comprising at least one angular sector that is associated with a customizable parameter, detecting a second location of the user input on the graphical user interface in the at least angular sector, and selecting among a set of values, a value of the customizable parameter according to the detected second location.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 30, 2016
    Applicant: DASSAULT SYSTEMES
    Inventors: Amelie RENARD, Laura PEYTHIEUX, Frederic LETZELTER
  • Publication number: 20160188133
    Abstract: A computer-implemented method of setting a parameter. The method comprises detecting a first user input on a first location on a graphical user interface, displaying on the graphical user interface a pie menu centered on the first location, the pie menu comprising at least one angular sector that is associated with a customizable parameter. The method also comprises detecting a second user input on a second location on the graphical user interface in the at least angular sector, the second user input being maintained. The method further comprises selecting among a set of values, a value of the customizable parameter by displacing the second user input from the second location to a third location.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 30, 2016
    Applicant: DASSAULT SYSTEMES
    Inventors: Amelie RENARD, Laura PEYTHIEUX, Frederic LETZELTER
  • Publication number: 20160140723
    Abstract: The invention is directed to a computer-implemented method for partitioning an image. The method comprises displaying an image that comprises a border; drawing a curve over the image; computing all closed areas delimited by the curve and the border of the image, each closed area being independent from the other computed closed areas and individually selectable.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 19, 2016
    Applicant: DASSAULT SYSTEMES
    Inventors: Frederic LETZELTER, Amelie RENARD, Laura PEYTHIEUX
  • Patent number: 9336335
    Abstract: The invention discloses a computer-implemented process for selecting a manipulator of an object among a plurality of objects displayed in a graphical user interface, each object comprising at least one manipulator. The process comprises the steps of providing a set of manipulators, wherein each manipulator comprises at least one picking area and at least two picking areas of different manipulators of the set overlap; receiving, upon a user interaction with the graphical user interface, an event applied on the said at least two overlapping picking areas; triggering a set of filters for selecting one manipulator of the set to be activated.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: May 10, 2016
    Assignee: Dassault Systèmes
    Inventors: Frédéric Letzelter, Mathieu Gunther
  • Patent number: 9245060
    Abstract: It is provided a computer-implemented method for designing a CAD modeled object. The method comprises displaying three-dimensional parametric shapes; user-interacting with a screen; defining on a support at least one stroke corresponding to the user-interacting; determining, for each shape, a projection of the shape on the support; selecting at least one shape, the selected shape having a projection with a smallest distance to the stroke. Such a method makes the design of a CAD modeled object easier.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: January 26, 2016
    Assignee: Dassault Systemes
    Inventor: Frédéric Letzelter
  • Patent number: 9235656
    Abstract: It is provided a computer-implemented method for designing a CAD modeled object. The method comprises displaying at least one three-dimensional parametric shape; user-interacting with the screen; defining on a support at least one stroke corresponding to the user-interacting; selecting a number of the three-dimensional parametric shapes; evaluating a relative position of the stroke with the selected shape; and determining a geometrical CAD operation based on the number and the relative position. Such a method makes the design of a CAD modeled object easier.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 12, 2016
    Assignee: Dassault Systemes
    Inventor: Frédéric Letzelter
  • Publication number: 20150243075
    Abstract: According to the invention, there is provided a computer-implemented method for designing a three dimensional modeled object in a three dimensional scene, wherein the method comprises the steps of: providing (300) a first curve; duplicating (301) the first curve to obtain a second curve; determining (302) a set of at least one starting point belonging to the first curve; determining (303) a set of at least one target point belonging to the second curve, each target point being associated at least one starting point; linking (304) the relevant points with their associated target points by using at least a connecting curve.
    Type: Application
    Filed: February 24, 2015
    Publication date: August 27, 2015
    Inventors: Jean Hong, Manfred Köhler, Laura Peythieux, Christophe Boyer, Frédéric Letzelter, Robert Beraud, Mathieu Gunther
  • Patent number: 9111053
    Abstract: It is provided a computer-implemented method for designing a CAD modeled object. The method comprises displaying several three-dimensional parametric shapes on a screen, wherein each of the several three-dimensional parametric shapes is divided in several portions, a different design operation being assigned to each portion; user-interacting with the screen; determining one portion upon a location of the user-interacting on a support, the determining being performed among all the portions; and performing, on the shape to which the determined portion belongs, the operation assigned to this portion. Such a method makes the design of a CAD modeled object easier.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: August 18, 2015
    Assignee: Dassault Systemes
    Inventors: Frédéric Letzelter, Rainer Lührs
  • Publication number: 20150177854
    Abstract: A computer-implemented method for configuring a tool with at least one pointing element on a screen comprising the steps of: pointing and activating (S1) a tool with a pointing element, said tool comprising a list of customizable parameters; and without releasing the pointing element, providing (S2) a first direction for selecting a customizable parameter of the list; providing (S3) a second direction for customizing a selected parameter of the list; and defining (S4) series of moves of the pointing element according to first and second direction for configuring the tool.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 25, 2015
    Inventors: Frederic Letzelter, Mathieu Gunther
  • Publication number: 20150178991
    Abstract: A computer-implemented method for designing a three-dimensional modeled object comprising the steps of providing a three-dimensional designing scene (41) in a display screen (40); and providing a graphical tool (42) in a first area (43) with a reduced size in the display area (44) of the screen (40) comprising at least one image (45, 46, 47). The graphical tool (42) is permanently superimposed over the scene (41).
    Type: Application
    Filed: December 12, 2014
    Publication date: June 25, 2015
    Inventors: Frederic Letzelter, Laura Peythieux, Mathieu Gunther, Amelie Renard
  • Patent number: 8941681
    Abstract: It is provided a computer-implemented method for designing a CAD modeled object with primitive three-dimensional parametric shapes including closed shapes. The method comprises user-interaction with a screen; definition in a plane of a stroke corresponding to the user-interaction; discretization of the stroke into stroke points; computation of a barycenter of the stroke points; determination of a closed shape to be instantiated as a result of a comparison of a position of the stroke points relative to the barycenter; and instantiation of the determined closed shape. Such a method makes the design of a CAD modeled object easier.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: January 27, 2015
    Assignee: Dassault Systemes
    Inventor: Frédéric Letzelter
  • Patent number: 8878841
    Abstract: It is provided a computer-implemented method for designing a CAD modeled object. The method comprises displaying at least one parametric three-dimensional shape; user-interacting with the screen; defining on a support a stroke corresponding to the user-interacting; computing at least one geometrical characteristic of the stroke; determining at least one parameter of a geometrical CAD operation based on the computed geometrical characteristic. Such a method makes the design of a CAD modeled object easier.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: November 4, 2014
    Assignee: Dassault Systemes
    Inventor: Frédéric Letzelter
  • Publication number: 20120290958
    Abstract: The invention discloses a computer-implemented process for selecting a manipulator of an object among a plurality of objects displayed in a graphical user interface, each object comprising at least one manipulator. The process comprises the steps of providing a set of manipulators, wherein each manipulator comprises at least one picking area and at least two picking areas of different manipulators of the set overlap; receiving, upon a user interaction with the graphical user interface, an event applied on the said at least two overlapping picking areas; triggering a set of filters for selecting one manipulator of the set to be activated.
    Type: Application
    Filed: April 30, 2012
    Publication date: November 15, 2012
    Applicant: Dassault Systems
    Inventors: Frédéric Letzelter, Mathieu Gunther
  • Publication number: 20120287121
    Abstract: It is proposed a computer-implemented method for designing a three-dimensional modeled object, wherein the method comprises the steps of: user-interacting with a screen; defining a stroke corresponding to the user-interacting; discretizing the stroke into a set of points; projecting the set of points onto at least one support in a three-dimensional scene; constructing the three-dimensional modeled object from the projected set of points and the said at least one support.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 15, 2012
    Applicant: Dassault Systemes
    Inventors: Jean Hong, Mikaël Queric, Jérôme Derel, Frédéric Letzelter
  • Publication number: 20120280981
    Abstract: It is provided a computer-implemented method for designing a CAD modeled object. The method comprises displaying three-dimensional parametric shapes; user-interacting with a screen; defining on a support at least one stroke corresponding to the user-interacting; determining, for each shape, a projection of the shape on the support; selecting at least one shape, the selected shape having a projection with a smallest distance to the stroke. Such a method makes the design of a CAD modeled object easier.
    Type: Application
    Filed: April 25, 2012
    Publication date: November 8, 2012
    Applicant: Dassault Systemes
    Inventor: Frédéric Letzelter
  • Publication number: 20120283998
    Abstract: It is provided a computer-implemented method for designing a CAD modeled object with primitive three-dimensional parametric shapes including closed shapes. The method comprises user-interaction with a screen; definition in a plane of a stroke corresponding to the user-interaction; discretization of the stroke into stroke points; computation of a barycenter of the stroke points; determination of a closed shape to be instantiated as a result of a comparison of a position of the stroke points relative to the barycenter; and instantiation of the determined closed shape. Such a method makes the design of a CAD modeled object easier.
    Type: Application
    Filed: April 25, 2012
    Publication date: November 8, 2012
    Applicant: Dassault Systemes
    Inventor: Frédéric Letzelter