Abstract:
It is provided a computer-implemented method for simulating the machining of a workpiece with a cutting tool having a cutting part and a non-cutting part. The method comprises providing a modeled volume representing the workpiece and a trajectory of the cutting tool; determining a colliding sweep of the cutting tool, wherein the colliding sweep represents the volume swept by the non-cutting front of the cutting tool when the cutting tool follows the trajectory; testing a collision with the workpiece according to the determining step. Such a method improves the simulation of the machining of a workpiece with a cutting tool.
Abstract:
In one embodiment, a computer method of verifying an operator is human includes automatically selecting a pattern and dividing the pattern into a plurality of textures. The method further includes projecting each texture onto a different respective displayed element in a 3D experience. The method additionally includes randomizing a position and/or an orientation of at least one displayed element of the different respective display elements in the 3D experience. The method also includes receiving operator manipulations of the randomized elements to solve for the pattern and make the pattern appear/reappear. The method further includes granting access to the operator if the pattern is made to appear/reappear. Access is granted upon determining that the operator has made the pattern is appear/reappear, and access is denied if the operator fails to make the pattern appear/reappear.
Abstract:
The invention notably relates to a computer-implemented method of designing a choropleth map, wherein the method comprises providing a map, and a number (n) of numerical values (x1, . . . , xn) that represent a statistical variable at respective areas of the map; computing the optimal K-means clustering of the numerical values for a predetermined number of clusters, wherein the computing includes iterating, a number of times corresponding to the predetermined number of clusters, a linear-time Row Minima Searching algorithm applied to a square matrix of order equal to the number of numerical values; assigning a respective coloration to each cluster of the computed clustering; and at all areas of the map at which a respective numerical value is provided, applying the coloration assigned to the cluster to which the respective numerical value belongs.Such a method improves the design of a choropleth map.
Abstract:
The invention notably relates to a computer-implemented method of clustering reference queries in a database for prediction of the runtime of a target query in the database based on similarity of the target query with the reference queries. The method comprises providing a number of numerical values that represent the runtimes of the reference queries; computing the optimal K-means clustering of the numerical values for a predetermined number of clusters, wherein the computing includes iterating, a number of times corresponding to the predetermined number of clusters, a linear-time Row Minima Searching algorithm applied to a square matrix of order equal to the number of numerical values; and clustering the reference queries according to the computed clustering of the numerical values.Such a method improves the field of database query runtime prediction.
Abstract:
A computer-implemented method for selecting a graphical element displayed on a touch-sensitive display. The method comprises displaying a graphical element on the touch-sensitive display; detecting a first location of a first user interaction on the touch-sensitive display; displaying a window on the display, the window comprising a pointer for selecting a graphical element; rendering in the window an area surrounding the first location of the first user interaction; detecting a second user interaction on the touch-sensitive display; detecting a move of the second user interaction on the touch-sensitive display; and moving the pointer within the window according to the move of the second user interaction.
Abstract:
It is proposed a method, performed by a computer system, for designing a multi-physics system. The method comprises the steps of displaying a block diagram representation of the multi-physics system, including blocks that each correspond to a respective sub-system of the multi-physics system, and, between the blocks, links that correspond to multi-physics connections between the respective sub-systems; and upon a zoom command, sent by a user, displaying a preview of a block diagram representation of at least one respective sub-system, the displaying of the preview being controlled by the detection, by the computer system, of the zoom command.Such a method improves the design of a 3D modeled object.
Abstract:
It is provided a computer-implemented method for designing a 3D modeled object, comprising providing, to a computer system, a NURBS surface that represents the 3D modeled object and that is defined by a grid of control points; determining (S20), by the computer system, a grid of surface points that belong to the NURBS surface, the grid of surface points corresponding to the grid of control points according to a predetermined invertible function; displaying, by the computer system, the NURBS surface and, on the NURBS surface, the grid of surface points; selecting, by graphical user-interaction, a subset of the surface points; modifying, by graphical user-interaction, position of the selected subset of surface points, and accordingly, updating real-time, by the computer system, the surface, the update being performed according to the predetermined invertible function.Such a method improves the design of a 3D modeled object.
Abstract:
It is provided a computer-implemented method for designing a 3D modeled object. The method comprises providing a base mesh controlling a subdivision surface. The subdivision surface models the 3D modeled object. The method also comprises providing a polyline consisting of connected edges of the base mesh and defining a smooth portion of the polyline comprising an extremity of the polyline and a sharp portion of the polyline upstream the smooth portion. The method also comprises converting faces of the mesh adjacent to the polyline into parametric patches approximating the subdivision surface. The patches have a G0 connection across the sharp portion of the polyline, and the patches have a Gi connection across the smooth portion of the polyline, where i is an integer higher or equal to 1.Such a method improves the design of a 3D modeled object modeled by a subdivision surface.
Abstract:
It is provided a computer-implemented method for creating a surface from a plurality of 3D curves. The method comprises providing a plurality of 3D curves, determining crossings between pairs of the curves, defining a base graph comprising nodes representing the crossings and arcs connecting pairs of nodes representing crossings that are neighbors, determining, from the graph, a mesh comprising vertices defined by a 3D position and edges connecting pairs of the vertices, and fitting the mesh with a surface. Such a method makes the creation of a surface from a plurality of 3D curves easier.
Abstract:
The invention notably relates to a computer-implemented method of design of an industrial product wherein constraints between geometries of the industrial product are modeled with a graph of constraints comprising nodes and edges, a node representing a geometry and an edge representing a constraint between two geometries. The method comprising the steps of selecting at least one geometry of the product; computing a depth value of each node of the graph from a node representing the at least one selected geometry; identifying antagonistic constraint(s) in the graph, an antagonistic constraint being represented by an oriented edge wherein the depth value of the start node is larger to the depth value of the end node; reversing the identified antagonistic constraint(s); modifying the at least one selected geometry.