343 results about "Slicing" patented technology

The invention provides a video live broadcast method and a system based on an HTTP (Hyper Text Transport Protocol). The video live broadcast method comprises the following steps of: dividing a live video stream into a plurality of slice files by a live source server; synchronously downloading the slice files from the live source server through the HTTP by an edge server; assembling the slice files into a complete file by the edge server; and providing a video live service of the complete file for the client through the HTTP. Therefore, according to the a video live broadcast method and system disclosed by the invention, the stability of the live video stream can be effectively improved, the multi-machine load balance is easily realized and the technical support for late-stage backup or processing of the live video stream is provided.

An apparatus and methods for generating geometric data for use in an additive manufacturing process. The apparatus includes a processing unit. The processing unit may be arranged for receiving data defining surface geometry of a plurality of objects to be built together in an additive manufacturing process, providing a user interface that allows a user to define a location of each object within a common build volume and carrying out a slicing operation on at least one of the objects located in the common build volume independently from another one of objects located in the common build volume. The slicing operation determines sections of the at least one object to be built in the additive manufacturing process. In one embodiment, the objects are defined in a hierarchical data structure. Supports for supporting the objects during the build may be defined with reference to a 2-dimensional support cross-section.

An encoder is configured to compress point cloud geometry information using an octree geometric compression technique that utilizes slices corresponding in size to data transmission units. In some embodiments, a subsequent slice may be set to use a re-set entropy context or may be set to use an entropy context saved for a preceding slice. In some embodiments, an entropy context for the preceding slice may be for a slice other than the immediately preceding slice of the subsequent slice being evaluated, such that if the immediately preceding slice is lost in transmission (or if the immediately preceding slice and the subsequent slice are being evaluated in parallel) the subsequent slice's entropy context can still be determined without depending on the immediately preceding slice. A decoder is configured to reconstruct a point cloud based on a bit stream encoded by the encoder.

A 3D object (the “New Object”) is fabricated layer by layer by 3D printing. The shape and relative dimensions of the various parts of the New Object match that of another 3D object (the “Target Object”). In addition, the exterior of the New Object appears to be a photographic likeness of the Target Object. The “photographic” likeness is created by variations in visual characteristics of materials in the layers comprising the New Object, and in particular by variations at or near the surface of the New Object. Thus, the photographic likeness is an integral part of these layers comprising the New Object. An object is scanned, from which a texture map is obtained. A CAD model is sliced into slices (bit maps files) which are then colored by a program with the boundary to match the color or gray scale to color the appropriate pixels, derived from the texture map.

A software product is produced by defining a functional model of the overall software product, designing, based on this functional model, a plurality n of configurations and slices of the software product, wherein a configuration is the entirety or a part of the software product forming an independently testable unit and a slice is a set of functions of the software product constructed together and forming the entirety or part of a configuration. The n slices are independently constructed wherein the first slice forms the first configuration. The seond to n-th configurations are formed by integrating the k-th configuration with the (k+1). slice, wherein k is 1, . . . , n. Subsequently a first to n-th configuration are tested independently. This software development approach allows an integration of the overall systems in parts as early as possible and to gradually increase the number of integrated components in a controlled, but manageable fashion. This allows to achieve a highly efficient use of resources within a short development time.

The invention provides a preparation process and a casting mould for a cast product based on the 3D printing technology, and belongs to the technical field of mould processing. The preparation process comprises the following steps: A, designing a casting mould model by utilizing a three-dimensional software, converting the casting mould model into a STL data format, leading the STL data format into a slicing software to carry out slicing processing, enabling a thickness of a laminate sheet to be 0.01-2mm, and enabling the wall thickness of the casting mould model to be greater than or equal to 0.5mm, thereby obtaining three-dimensional model data of the casting mould; B, leading the three-dimensional model data, obtained in the step A, of the casting mould into 3D printing equipment, carrying out printing and molding, thereby obtaining the casting mould; and C, injecting a fluid raw material into a mould cavity of the casting mould in the step B, thereby obtaining the cast product. The casting mould comprises mould cavity surrounding boards, and a mould cavity defined by the mould cavity surrounding boards, wherein an injection hole and an overflow hole are formed in the top of each mould cavity surrounding board. The preparation process and the casting mould has the advantages such as high processing precision, less material consumption, high production efficiency, simple manufacturing processes, low production cost and the like.

The invention discloses a file upload method and system, relates to the technology of computer internet, and solves the problems that file uploading is liable to be influenced by the network and then fails. The method comprises the steps that a file to be uploaded is sliced according to the set size of the slice so as to obtain at least one slice, and the total number of slices is determined; and the slices are successively uploaded to a server side one by one until all the slices are completely uploaded. The technical scheme is suitable for data transmission, and file uploading having the breakpoint resume effect can be realized.

The invention relates to a full-color layered slicing algorithm based on a three-dimensional model of texture mapping. The full-color layered slicing algorithm based on the three-dimensional model oftexture mapping includes the steps that a three-dimensional model file of texture mapping is analyzed, a triangular mesh adjacent topological relation based on color information is established, and fast query of triangular mesh adjacent information of the color information is realized; the fast intersection operation of color information triangular meshes and a tangent plane is realized, positioncoordinates and texture coordinates of all vertexes in each layer are obtained, the vertexes are connected in sequence to form a full-color two-dimensional contour, and the full-color two-dimensionalcontour is filled; and a full-color bitmap is generated, the position of the full-color contour in the bitmap is precisely located according to the position of a colourless model in a printing platform, the thickness of the contour is increased appropriately, and the function of layer-upon-layer printing and layer-upon-layer coloring is achieved. The full-color layered slicing algorithm based on the three-dimensional model of texture mapping has high slicing efficiency, the surface colors of the model are realistic, the reduction degree is high, the aftertreatment process of coloring the modelis omitted, the requirement for proficiency of operators is greatly reduced, the forming quality of parts is improved, and a real sense of color three-dimensional printing is realized.

The invention discloses a live video stream playback processing method and device, computing equipment and a computer storage medium, and the method comprises the steps: receiving a live video streampushed by a main server; slicing the data frame of the live video stream according to a preset slicing strategy to obtain a slicing file and a corresponding slicing index file; and storing the slice file and the slice index file for calling during playback. According to the technical scheme provided by the invention, the time consumed for obtaining the live video stream is effectively reduced, thereal-time playback processing of the live video stream is realized, the playback delay problem is solved, and the user playing experience is improved.

The invention discloses a GIM file visualization processing method and system, a readable storage medium and a computer. The method comprises the steps of obtaining a GIM file; sending the GIM file toan analysis platform for analysis and parametric modeling to generate an intermediate data file, the intermediate data file being a standard 3D model file implanted with a unique identifier and attribute information of a device group of the GIM file; converting the intermediate data file into standard three-dimensional slice data; and sending the standard three-dimensional slice data to a WebGL-based map engine, and displaying a three-dimensional view corresponding to the standard three-dimensional slice data through a browser supporting the WebGL-based map engine. Through the three-dimensional model preview method and device, a user only needs to upload the GIM file to the server without installing specific three-dimensional design software, three-dimensional model preview of the GIM file can be achieved through the browser, the requirement of the user for three-dimensional model preview of the GIM file is greatly met, and application and popularization of the GIM technology in the power grid industry are facilitated.

The invention discloses a 3D printing method and device. The method comprises the following steps that a 3D model slicing file sent by a 3D printing platform is received and comprises slicing data obtained after slicing of 3D model data; the 3D model slicing file is analyzed, and the slicing data are obtained; the slicing data obtained after analyzing are adopted to be subject to 3D printing. According to the scheme in the embodiment, convenience of 3D printing by a user is improved, and application, popularization and the development of the 3D printing technology are facilitated.

The invention provides a self-layer-thickness-adaptive slicing method and a printing system. The self-layer-thickness-adaptive slicing method comprises the steps that a 3D model of a to-be-printed object is acquired; the 3D model is dispersed into d1, d2 to dn layers of models with an identical layer thickness; the midperpendicular of the 3D model is acquired; the 3D model is divided with the sameangle by taking the midperpendicular as the center, so that a plurality of vertical slices are obtained; the vertical slices are dispersed into a plurality of layers with the same layer thickness h,so that a plurality of comparison points on the outlines of the vertical slices are acquired; every two adjacent comparison points on each vertical slice are connected to form a slash, and an includedangle a between each slash and the horizontal direction is calculated; and the angles a are compared with a threshold S, and whether two adjacent layers are combined for slicing or not is determined.By adopting the self-layer-thickness-adaptive slicing method, self-adaptive slicing is performed on the 3D model of the to-be-printed object with different layer thicknesses; and the printing systemis provided for directly printing the self-layer-thickness-adaptive layer models; and printing speed is accelerated on the premise of not affecting printing precision and printing object quality.

The invention discloses a method and a device for slicing a three-dimensional simulation map. The method comprises the steps of obtaining a geographical coordinate value and a pixel coordinate value of any same position according to a preset three-dimensional simulation map file and a preset remote-sensing image; combining corresponding pixel coordinate values and geographical coordinate values into a registration coordinate file with a preset format; loading the registration coordinate file, receiving slicing parameters input by a user, and obtaining a sliced map and outputting a catalogue file according to the registration coordinate file and the slicing parameters; and running a whole area slicing plug-in to obtain a three-dimensional simulation map sliced file. The method and the device disclosed by the invention can be convenient for the three-dimensional simulation map to combine with a geographical coordinate system, and a registration process is simple; and meanwhile, the three-dimensional simulation map is enabled to generate a map cache; and thus, the slicing efficiency is high.