Meshing method and apparatus
    1.
    发明授权
    Meshing method and apparatus 失效
    啮合方法和装置

    公开(公告)号:US06259453B1

    公开(公告)日:2001-07-10

    申请号:US09170338

    申请日:1998-10-13

    IPC分类号: G06F1500

    CPC分类号: G06T17/20

    摘要: A method for automatically generating a mesh (e.g., a quadrilateral mesh, a hexahedral mesh, and the like) includes inputting a geometric model to be meshed, generating a plurality of bubbles within a region of the geometric model, determining a stable allocation of the bubbles by moving the bubbles using a force defined by a potential field provided for the bubbles and controlling a number of the bubbles, and generating the mesh by connecting centers of adjacent bubbles.

    摘要翻译: 用于自动生成网格(例如,四边形网格,六面体网格等)的方法包括输入要被啮合的几何模型,在几何模型的区域内产生多个气泡,确定所述几何模型的稳定分配 通过由为气泡设置的势场限定的力移动气泡并控制多个气泡,并且通过连接相邻气泡的中心而产生网孔。

    Method for generating a mesh and a computer therefor
    2.
    发明授权
    Method for generating a mesh and a computer therefor 失效
    用于生成网格和计算机的方法

    公开(公告)号:US06317704B1

    公开(公告)日:2001-11-13

    申请号:US09148968

    申请日:1998-09-05

    IPC分类号: G06F1750

    CPC分类号: G06T17/20

    摘要: A method is provided for generating a quadrilateral mesh and a hexahedral mesh. First, a geometric model, which is an object of meshing, is input. The model is either two-dimensional or three-dimensional. Multiple bubbles of a plurality of types are generated in a region of the geometric model. The bubbles are moved according to an interbubble force defined by a predetermined rule, and the bubble count is controlled to adjust a neighboring relationship between the bubbles, so that the stable allocation of the bubbles are determined. By connecting the centers of bubbles of a specific type, a mesh is generated.

    摘要翻译: 提供了一种生成四边形网格和六面体网格的方法。 首先,输入作为网格对象的几何模型。 该模型是二维或三维的。 在几何模型的区域中生成多个类型的多个气泡。 气泡根据由预定规则限定的泡泡力移动,并且气泡计数被控制以调节气泡之间的相邻关系,从而确定气泡的稳定分配。 通过连接特定类型的气泡中心,生成网格。

    System for meshing curved surface by generating and controlling the number of bubbles in parametric space
    3.
    发明授权
    System for meshing curved surface by generating and controlling the number of bubbles in parametric space 失效
    通过生成和控制参数空间中的气泡数来啮合曲面的系统

    公开(公告)号:US06192293B1

    公开(公告)日:2001-02-20

    申请号:US09078827

    申请日:1998-05-14

    IPC分类号: G06F1900

    CPC分类号: G06T17/20

    摘要: A curved surface to be meshed and a tensor at each point on the curved surface are inputted. Then, bubbles are generated in parametric space corresponding to the curved surface and in accordance with tensors transformed according to the relationship between the curved surface and parametric space. Following this, the bubbles are moved in parametric space by inter-bubble force defined by a predetermined rule, and are transformed by using the transformed tensors. The number of the bubbles is also controlled, so that stable locations for the bubbles in parametric space can be determined. Next, a connection relationship between mesh nodes, which are centers of the bubbles located in parametric space, is determined in parametric space. Finally, a mesh is generated on the curved surface by employing the positions and the connection relationship of the mesh nodes.

    摘要翻译: 输入要曲面的弯曲表面和弯曲表面上每个点处的张量。 然后,在与曲面对应的参数空间中产生气泡,并且根据根据曲面与参数空间之间的关系变换的张量。 此后,气泡通过由预定规则定义的气泡间力在参数空间中移动,并且通过使用变换的张量进行变换。 也可以控制气泡的数量,从而可以确定参数空间中气泡的稳定位置。 接下来,在参数空间中确定作为位于参数空间中的气泡的中心的网格节点之间的连接关系。 最后,通过采用网格节点的位置和连接关系,在曲面上生成网格。

    Quadrilateral mesh generation method and apparatus
    4.
    发明授权
    Quadrilateral mesh generation method and apparatus 失效
    四边网格生成方法和装置

    公开(公告)号:US6121973A

    公开(公告)日:2000-09-19

    申请号:US132886

    申请日:1998-08-12

    IPC分类号: G06F17/50 G06T17/20 G06F15/00

    CPC分类号: G06T17/20

    摘要: A method and appatatus for generating a quadrilateral mesh comprising a plurality of quadrilateral elements from a triangular mesh comprising a plurality of triangular elements by performing the following operations: for each candidate quadrilateral element comprising a pair of adjacent triangular elements (also referred to as a pair of adjacent triangular elements in embodiments), calculating a first evaluation value which represents a relationship between the candidate quadrilateral element and an alignment direction of quadrilateral elements specified by a user and a second evaluation value which relates to the shape of the candidate quadrilateral element; and selecting, by using the first and the second evaluation values, a candidate quadrilateral element to be used as an element of the quadrilateral mesh among the candidate quadrilateral elements. It is possible to further include a step of calculating, for each candidate quadrilateral element, a third evaluation value which takes a first value when there is no other triangular element to make a pair with any triangular element comprising a candidate quadrilateral element and takes a second value when there is one. As a result, in the aforementioned selecting step may give higher priority in the selection to a candidate quadrilateral element whose third evaluation value takes the first value.

    摘要翻译: 一种用于通过执行以下操作从包括多个三角形元素的三角形网格生成包括多个四边形元素的四边形网格的方法和应用:对于包括一对相邻三角形元素(也称为对)的每个候选四边形元素 计算表示候选四边形元素与用户指定的四边形元素的排列方向和与候选四边形元素的形状有关的第二评估值之间的关系的第一评估值; 以及通过使用第一和第二评估值来选择要用作候选四边形元素之中的四边形网格的元素的候选四边形元素。 可以进一步包括对于每个候选四边形元素计算第三评估值的步骤,当没有其他三角形元素与包括候选四边形元素的任何三角形元素形成一对时,获取第一值,并且取第二值 有价值时有一个。 结果,在上述选择步骤中,在对第三评估值取第一值的候选四边形元素的选择中可以给出较高的优先级。

    Method and apparatus for updating node position
    5.
    发明授权
    Method and apparatus for updating node position 失效
    更新节点位置的方法和装置

    公开(公告)号:US06226405B1

    公开(公告)日:2001-05-01

    申请号:US09216582

    申请日:1998-12-18

    IPC分类号: G06K948

    CPC分类号: G06T11/203

    摘要: In order to change the positions of a plurality of nodes that constitute a line or a surface, following steps are executed: storing in a storage device data of a normal for each node; changing the position of each node and storing the position information into the storage device by (1) defining a virtual elastic member connected to each node in a direction of the normal of each node, and (2) stretching or shrinking the elastic members in the direction of each normal so as to balance each elastic member; and repeating the storing step and the changing step until a predetermined condition has been satisfied. As a result, a smooth curve or smooth surface is generated.

    摘要翻译: 为了改变构成行或表面的多个节点的位置,执行以下步骤:在存储装置中存储每个节点的法线数据; 通过以下步骤,改变每个节点的位置并将位置信息存储到存储装置中:(1)在每个节点的法线方向上限定连接到每个节点的虚拟弹性构件,以及(2)将弹性构件拉伸或收缩在 方向,以平衡每个弹性构件; 并重复存储步骤和改变步骤直到满足预定条件。 结果,产生平滑的曲线或光滑的表面。

    Systems and methods for extracting an approximated medial surface from a thin-wall solid
    6.
    发明申请
    Systems and methods for extracting an approximated medial surface from a thin-wall solid 审中-公开
    从薄壁固体中提取近似内侧表面的系统和方法

    公开(公告)号:US20080002889A1

    公开(公告)日:2008-01-03

    申请号:US11445915

    申请日:2006-06-02

    IPC分类号: G06K9/48

    CPC分类号: G06T17/10 G06T17/30

    摘要: A computer-implemented method for extracting an approximated medial surface from a solid having a thin-wall geometry. The method includes generating a first mesh representative of the solid and including a plurality of mesh elements. The method further includes defining a mid-surface element for each of at least a portion of the volumetric mesh elements, segmenting a surface collectively formed by the mid-surface elements to form a plurality of surface regions, defining a boundary for each surface region, and fitting an approximate surface to each surface region and its corresponding boundary. The approximate surfaces collectively define the approximated medial surface.

    摘要翻译: 一种用于从具有薄壁几何形状的实体中提取近似内侧表面的计算机实现的方法。 该方法包括生成表示实体的第一网格并且包括多个网元。 该方法还包括为体积网格元件的至少一部分中的每一个限定中间表面元件,分割由中间表面元件共同形成的表面以形成多个表面区域,为每个表面区域限定边界, 并将每个表面区域及其对应边界的近似表面拟合。 近似表面共同定义近似的内侧表面。

    Wobble motor microactuator for fine positioning and disk drive
incorporating the microactuator
    7.
    发明授权
    Wobble motor microactuator for fine positioning and disk drive incorporating the microactuator 失效
    摆动电机微型致动器用于精细定位和磁盘驱动器,并入微致动器

    公开(公告)号:US5805375A

    公开(公告)日:1998-09-08

    申请号:US703111

    申请日:1996-08-22

    摘要: A microfabricated wobble motor with a positioning arm attached to the wobble motor rotor acts as a fine positioner with bidirectional movement. The primary application is a rotary actuator for the read/write head in a very small magnetic recording disk drive. An integrated head-arm assembly is attached at one end to the rotor of the wobble motor. The other end of the head-arm assembly has a head carrier that is maintained in contact with the disk. Head position error information is read from the disk and used to provide control signals to each of the stator elements. The stator elements are sequentially addressed by applying a voltage from a driver circuit. This causes the rotor to be electrostatically attracted to the activated stators, so that the rotor is movable bidirectionally. The read/write head can thus be moved bidirectionally to any of the data tracks on the disk and maintained on a desired data track for reading or writing data. The fine positioner also includes a digital control system where each of the stator elements is represented by an address, and the movement of the rotor is controlled by incrementing or decrementing the stator address in an address register.

    摘要翻译: 具有连接到摆动电动机转子的定位臂的微型摆动电动机作为具有双向运动的精细定位器。 主要应用是在非常小的磁记录磁盘驱动器中用于读/写磁头的旋转致动器。 一体的头臂组件一端连接到摆动马达的转子上。 头臂组件的另一端具有保持与盘接触的头托架。 磁头位置误差信息从磁盘读取并用于向每个定子元件提供控制信号。 通过施加来自驱动器电路的电压来顺序地寻址定子元件。 这导致转子被静电吸引到激活的定子,使得转子可双向移动。 因此,读/写头可以双向移动到磁盘上的任何数据轨道,并保持在用于读取或写入数据的所需数据轨道上。 精细定位器还包括数字控制系统,其中每个定子元件由地址表示,并且通过递增或递减地址寄存器中的定子地址来控制转子的移动。

    Touch panel
    8.
    发明授权
    Touch panel "double-touch" input method and detection apparatus 失效
    触摸面板“双触”输入法和检测装置

    公开(公告)号:US5943043A

    公开(公告)日:1999-08-24

    申请号:US761101

    申请日:1996-12-05

    摘要: A "double-touch" input method is described that is particularly suitable for use as a substitute for a "double-click" input from a mouse or trackball, and that is particularly suitable for use with a touch panel. Briefly, the input method involves contacting a touch panel at a first location (for example, over an area where an icon is displayed) with a first finger. Before a predetermined period of time T.sub.wait elapses, a second finger "taps" the panel at a second location. The location tapped by the second finger is greater than a predetermined distance from the first location tapped by the first finger. In addition, the tap by the second finger is shorter than a second predetermined period of time T.sub.tap. After the tap by the second finger, the first finger is still in contact with the touch panel. The position of the first finger after the tap should be within a predetermined range of its position just prior to the tap. Apparatus in the form of a device driver is described for detecting a double touch input.

    摘要翻译: 描述了一种“双触式”输入方法,其特别适合用作从鼠标或轨迹球的“双击”输入的替代,并且特别适合于与触摸面板一起使用。 简而言之,输入方法包括在第一位置(例如,显示图标的区域上)与第一手指接触触摸面板。 在经过预定时间段Twait之前,第二个手指在第二个位置“敲击”面板。 由第二手指敲击的位置大于距离由第一手指敲击的第一位置的预定距离。 此外,第二手指的抽头短于第二预定时间段Ttap。 在通过第二根手指敲击之后,第一个手指仍然与触摸面板接触。 水龙头后第一根手指的位置应在水龙头之前位于其位置的预定范围内。 描述了用于检测双重触摸输入的设备驱动器形式的装置。

    Micro actuator
    10.
    发明授权
    Micro actuator 失效
    微型执行器

    公开(公告)号:US5489812A

    公开(公告)日:1996-02-06

    申请号:US233486

    申请日:1994-04-26

    摘要: A device for providing micro positioning having an operating range in the submicron order in the X and Y directions, respectively. Positioning is achieved by a device which includes a driving section bonded to a silicon wafer for applying a driving force to excite vertical motion, and a mechanism for converting this vertical motion into rotational motion. Three types of micro actuators are described herein: one, that uses vibration as its driving force; a second, that uses Coulomb's force; and a third, that utilizes fluid pressure, such as air.

    摘要翻译: 一种用于提供微定位的装置,其分别在X和Y方向上具有亚微米级的工作范围。 定位是通过一种装置实现的,该装置包括结合到硅晶片的驱动部分,用于施加驱动力以激发垂直运动,以及用于将该垂直运动转换成旋转运动的机构。 这里描述了三种微型致动器:一种是使用振动作为其驱动力; 一秒钟,使用库仑的力量; 第三个,利用流体压力,如空气。