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1.发明授权
公开(公告)号：US5027291A
公开(公告)日：1991-06-25
申请号：US124726
申请日：1987-11-24
CPC分类号： G06F3/04842
摘要： A method is described that gives local control to an application program during the drawing process when a "pickable" primitive intersects the pick window. This control is provided in such a way that the state of graphics workstation remains unaltered. Thus the application program is permitted to make "picking" or visualization decisions at the moment the pick occurs, and then resume execution of the display program wherever desired (typically, at the graphic instruction following the one that caused the pick). This capability enables application programs to provide greater functionality, usability and productivity to their users.
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公开(公告)号：US5012433A
公开(公告)日：1991-04-30
申请号：US364524
申请日：1989-06-09
IPC分类号： G06T15/30
CPC分类号： G06T15/30
摘要： A method for clipping two and three dimensional graphic primitives for use in a computer graphics workstation. During the first clipping stage, the system removes all graphic primitives which lie outside an arbitrary clipping volume or window that is an enlargement of the desired viewing volume or window. This clipping volume (window) is then projected and mapped onto a virtual viewport which is larger than the real viewport. After this mapping occurs, rendering effects (such as line styles, line width, pattern fill, hatch fill, etc.) are applied to the primitive. A subsequent stage of clipping is then applied to clip the virtual viewport to the real viewport which is the user's visible area. Use of the clipping volume (window) during the first stage of clipping makes it simpler to transform geometric primitives which are partially visible to the viewer, and gives visible primitives a richer set of invariant geometric properties so that their rendering effects may be more easily and correctly carried out.
摘要翻译： 一种用于裁剪用于计算机图形工作站的二维和三维图形图元的方法。 在第一个剪辑阶段，系统将删除位于任意裁剪卷或窗口之外的所有图形原语，这些缩放卷或窗口是所需观看卷或窗口的放大图。 然后将该剪辑卷（窗口）投影并映射到大于真实视口的虚拟视口。 发生这种映射之后，将渲染效果（如线条样式，线宽，图案填充，填充填充等）应用于原语。 然后应用后续的剪辑阶段将虚拟视口剪切到作为用户可见区域的真实视口。 在剪辑的第一阶段使用剪辑卷（窗口）使得更容易地对观看者部分可见的几何图元进行变换，并且给予可见原始图形更丰富的不变几何属性集，使得它们的渲染效果可以更容易地 正确进行
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公开(公告)号：US4847605A
公开(公告)日：1989-07-11
申请号：US43019
申请日：1987-04-27
申请人： Robert M. Callahan , Anthony M. Fiore , Edward C. Flickinger , Bruce C. Hempel , Bruce E. Whistance
发明人： Robert M. Callahan , Anthony M. Fiore , Edward C. Flickinger , Bruce C. Hempel , Bruce E. Whistance
IPC分类号： G06F3/0484
CPC分类号： G06F3/04842
摘要： A method is described for improving the responsiveness and accuracy of a graphics system to user-initiated picking actions. In this method, the visual cueing and pick window positioning components of the graphics system tracking/picking function are temporarily separated at the time the user attempts to pick. By handling these two components of the tracking/picking function independently, both type 1 (failure to pick the desired item) and type 2 (picking an undesired item) errors are prevented. This translates into greater productivity for the graphics system user.
摘要翻译： 描述了一种用于提高图形系统对用户发起的挑选动作的响应性和准确性的方法。 在这种方法中，图形系统跟踪/拾取功能的视觉提示和拾取窗口定位组件在用户尝试选择时暂时分离。 通过独立地处理跟踪/拾取功能的这两个组件，可以防止类型1（未能选择所需项目）和类型2（选择不期望的项目）错误。 这转化为图形系统用户的更高的生产力。
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公开(公告)号：US20110036051A1
公开(公告)日：2011-02-17
申请号：US12461520
申请日：2009-08-14
申请人： Robert M. Callahan
发明人： Robert M. Callahan
IPC分类号： E04C3/07
CPC分类号： E04C3/07 , E04C3/29 , E04C3/292 , E04C5/065 , E04C2003/0413 , E04C2003/043 , E04C2003/0465
摘要： A reinforced girder including a first C-shaped member formed of sheet metal. A second C-shaped member, formed of sheet metal, is welded to the first C-shaped member to form a rectangular box. A first pair of metallic stringers is welded in a spaced-apart relationship within the first C-shaped member. The first pair of metallic stringers extends the length of the first C-shaped member. A second pair of metallic stringers is welded in a spaced-apart relationship within the second C-shaped member and extends the length of the second C-shaped member. A number of first, metallic, transverse connectors are welded in a spaced-apart relationship within the first C-shaped member between the first pair of metallic stringers. The first, metallic transverse connectors are oriented parallel to one another and at right angles to the first pair of metallic stringers. A number of second, metallic, transverse connectors are welded in a spaced-apart relationship within the second C-shaped member between the second pair of metallic stringers. The second, metallic transverse connectors are oriented parallel to one another and at right angles to the second pair of metallic stringers.
摘要翻译： 一种加强梁，包括由金属板形成的第一C形构件。 由金属板形成的第二C形构件被焊接到第一C形构件以形成矩形框。 在第一C形构件内以间隔开的关系焊接第一对金属桁条。 第一对金属桁条延伸第一C形构件的长度。 第二对金属桁条在第二C形构件内以间隔开的关系焊接，并延伸第二C形构件的长度。 多个第一金属横向连接器在第一对金属桁条之间的第一C形构件内以间隔的关系焊接。 第一个金属横向连接器彼此平行并且与第一对金属桁条成直角。 在第二对金属桁条之间的第二C形构件内以数个间隔的关系焊接多个第二金属横向连接器。 第二个金属横向连接器彼此平行并且与第二对金属桁条成直角定向。
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公开(公告)号：US5832691A
公开(公告)日：1998-11-10
申请号：US848837
申请日：1997-05-05
CPC分类号： E04B2/766 , E04C3/292 , E04B2002/7488
摘要： A composite beam including an elongated metallic shell and a pierceable insert contained within at least one end of the elongated metal shell. A bracket abutting the pierceable insert supports such within the elongated metallic shell. The bracket includes a pair of longitudinal plates for secure attachment to the elongated metallic shell.
摘要翻译： 复合梁，包括细长的金属壳和可穿透的插入物，其包含在细长金属壳的至少一个端部内。 邻接可刺穿插入物的支架在细长的金属外壳内支撑。 支架包括一对用于牢固地附接到细长金属壳的纵向板。
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公开(公告)号：US20110036052A1
公开(公告)日：2011-02-17
申请号：US12461522
申请日：2009-08-14
申请人： Robert M. Callahan
发明人： Robert M. Callahan
IPC分类号： E04C3/04
CPC分类号： E04C3/07 , E04C2003/0413 , E04C2003/043 , E04C2003/0465
摘要： A reinforced girder including a first C-shaped member formed of sheet metal. A second C-shaped member, formed of sheet metal, is welded to the first C-shaped member to form a rectangular box. A first pair of metallic stringers is welded in a spaced-apart relationship within the first C-shaped member. The first pair of metallic stringers extends the length of the first C-shaped member. A second pair of metallic stringers is welded in a spaced-apart relationship within the second C-shaped member and extends the length of the second C-shaped member. A pair of first, metallic, transverse connectors is welded within the first C-shaped member between the first pair of metallic stringers. The first, metallic, transverse connectors radiate outwardly from a common point of contact at an angle. A pair of second, metallic, transverse connectors is welded within the second C-shaped member between the second pair of metallic stringers. The second, metallic transverse connectors radiate outwardly from a common point of contact at an angle.
摘要翻译： 一种加强梁，包括由金属板形成的第一C形构件。 由金属板形成的第二C形构件被焊接到第一C形构件以形成矩形框。 在第一C形构件内以间隔开的关系焊接第一对金属桁条。 第一对金属桁条延伸第一C形构件的长度。 第二对金属桁条在第二C形构件内以间隔开的关系焊接，并延伸第二C形构件的长度。 一对第一金属横向连接器焊接在第一C形构件之间的第一对金属桁条之间。 第一个金属横向连接器以一个角度从公共接触点向外辐射。 一对第二金属横向连接器焊接在第二C形构件之间的第二对金属桁条之间。 第二个金属横向连接器以一个角度从公共接触点向外辐射。
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公开(公告)号：USD472792S1
公开(公告)日：2003-04-08
申请号：US29168135
申请日：2002-09-27
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公开(公告)号：USD472791S1
公开(公告)日：2003-04-08
申请号：US29168134
申请日：2002-09-27
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公开(公告)号：US11473299B1
公开(公告)日：2022-10-18
申请号：US17245143
申请日：2021-04-30
摘要： Certain exemplary embodiments can provide a wall frame comprising a top plate, a bottom plate, a first end column, a second end column, a plurality of studs, and a plurality of purlins. Each of the plurality of purlins is an edge of a pair of cells, the pair of cells having edges comprising three edges that comprise one or more of a part of the top plate, a part of the bottom plate, a part of the first end column, a part of the second end column, a part of the plurality of studs, and another of the plurality of purlins.
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公开(公告)号：US5625997A
公开(公告)日：1997-05-06
申请号：US415945
申请日：1995-04-03
CPC分类号： E04B2/766 , E04C3/292 , E04B2002/7488
摘要： A composite beam including an elongated metal shell and a pierceable insert contained within at least one end of the elongated metal shell.
摘要翻译： 复合梁包括细长的金属壳和可穿透的插入件，其包含在细长的金属壳的至少一端中。
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