摘要:
To effect hidden surface removal, polygons making up a three dimensional object are initially ordered using a Topological Sort into, for example, three rendering order lists corresponding to orthogonal axis. When the object is to be represented from a given view direction, the view direction is compared to the axis and the rendering list corresponding to the closest match is selected. Polygons are then rendered in list order, backward facing polygons being omitted. Performing the ordering at the polygon level, in an initial step, saves computation and consequently enables the projection and rendering processes to be speeded up to provide real time interactive three dimensional graphics. The Topological Sorting process is particularly computationally effective.
摘要:
An apparatus and process for folding a sock cuff, which comprises a blade mounted on and projecting from a support, a first carriage mounted for reciprocal movement along and over said blade and having first gripping means adapted to space and grip the open end of a sock such that movement of the carriage along the blade will substantially envelop the blade with the sock, a second carriage mounted for reciprocal movement along said blade and having second gripping means adapted to move transversely to the blade to grip the sock covering said blade, and means for actuating (i) said carriage to reciprocally move said carriage along said blade, (ii) said first gripping means to grip and release the open end of said sock and, (iii) said second gripping means to reciprocally move said means along the blade and transversely thereto. A process of folding a sock cuff, more particularly, a `walk` sock cuff, is also provided.
摘要:
Apparatus for stretching and folding a limp fabric piece (1), having a plurality of opposed elastic bands (12,12',13,13') extending therefrom comprising a platform (2) having a foldable segment, means for folding said foldable segment relative to the platform (2),A limp fabric piece feeding plate (5) for feeding said limp fabric piece (1) to said platform (2) and holding said fabric piece (1) thereon in an extended condition and in a pre-determined position to enable eventual folding of the fabric piece (1) to produce a garment,means for moving said plate (5) horizontally or vertically,suction means located adjacent said platform (2) for applying suction to the elastic bands (12,12',13,13') extending from the fabric piece (1),elastic band gripper means associated with the suction means for gripping and holding the sucked-in elastic bands (12,12',13,13'), relative to said suction means,means for moving said suction means relative to said platform (2) to stretch said fabric piece (1),garment gripper means associated with said foldable segment for gripping and holding the stretched fabric piece (1) at the correct position for folding said fabric piece (1) andgarment pressing means associated with said platform (2) for pressing and holding the folded fabric piece (1) adjacent the overlapping elastic bands (12,12',13,13') of said fabric piece (1).
摘要:
A mount yoke assembly comprises a first main hanger bracket and a first anchor bracket. The first main hanger bracket includes a first receiving portion for a first auxiliary power unit (APU) mount with first and second hanger arms. The first hanger arm includes a first hanger flange extending proximate a distal end of the first hanger arm. The first anchor bracket includes a first plurality of anchor holes and a first anchor flange. The first plurality of anchor holes are disposed substantially along a length of the first anchor bracket for securing the mount yoke assembly to a component of an APU assembly. The first anchor flange extends from the first anchor bracket for hingeably securing the first anchor bracket to the first main hanger bracket.
摘要:
A Hot Section Fire Enclosure for a gas turbine engine according to an exemplary aspect of the present disclosure includes a multiple of supports mounted between a Hot Section Fire Enclosure support ring and a shroud, at least one of the supports includes a hollow support pin which spaces the Hot Section Fire Enclosure support ring relative the shroud.
摘要:
A drain assembly for an auxiliary power unit having a hot zone formed by a combustor case comprises a fire enclosure, a drain fitting, a discharge port and a piston seal. The fire enclosure encapsulates the hot zone of the combustor case. The drain fitting connects to the fire enclosure. The discharge port extends from the combustor case into the drain fitting. The piston seal is positioned between the drain fitting and the discharge port.
摘要:
An interactive, mobile decoy system uses a bent wire framed assembly with two parallel support runners which transition rearward in an 180 degree arc toward the center of gravity of the support runners and terminate at a junction block. The block joins a support mechanism with a decoy attaching point. A pull mechanism incorporates a pivoting decoy mounting point for causing a decoy mounted thereon to realistically simulate the feeding motions of game fowl in general and wild turkeys in particular, especially a strutting motion of a male and a feeding behavior of a hen.
摘要:
A coating composition, particularly a clearcoat composition, which may be a two-component clearcoat composition, comprises a film-forming material, a crosslinking agent, and a nonlinear polysiloxane polymer having a functional group reactive with the crosslinking agent. The coating composition exhibits excellent scratch resistance and adhesion of repair coating layers and sealants, such as windshield sealants.