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77 results about "Graphical projection" patented technology

Graphical projection is a protocol by which an image of a three-dimensional object is projected onto a planar surface without the aid of numerical calculation, used in technical drawing.

Compression of three-dimensional geometry data representing a regularly tiled surface portion of a graphical object

Methods and systems for compressing and decompressing 3-D geometry data which includes regularly tiled surface portions. One compression method includes representing a surface portion as a "vertex raster", which comprises specifying an extent value and encoding the vertex parameter values of vertices within the surface portion. The extent of the surface portion specifies the arrangement of vertices within the surface portion, and allows the vertices to be properly assembled into drawing primitives during decompression. The encoded vertex parameter values may be encoded globally (by setting initial values and corresponding delta values), locally (on a per-vertex basis), or using a combination of these techniques. Absolute, delta encoding, or delta-delta encoding may be utilized for these parameter values. Vertex parameters which may be encoded in this manner include position, color, normals, z-displacement values, texture map coordinates, and surface material properties. Additionally, connectivity information may also be encoded using this compression method by specifying quad split bits and half-resolution edges. Quad split bits are used to tessellate a quadrilateral formed by neighboring vertices of a surface portion according to the direction of the strongest color change. Half-resolution edges are utilized to gradually shift from an area of high resolution to an adjacent surface portion represented in lower resolution. For graphical objects which include a plurality of adjacent surface portions, a step command is disclosed which allows data from one surface portion to be advantageously reused. Decompression of a vertex raster representation may comprise decoding the extent value, global parameter values, and a per-vertex stream of local parameter values.
Owner:ORACLE INT CORP

Graphical inspection system and inspection method

The invention relates to a graphical inspection system and an inspection method. The inspection system is characterized by comprising an identification tag, a handheld intelligent terminal for identifying the identification tag, and a server in communicated connection with the handheld intelligent terminal, wherein the handheld intelligent terminal comprises an engine body, a touch display panel arranged on the front surface of the engine body, a tag identification module which is arranged in the engine body and is in communicated connection with the touch display panel, a processing module in communicated connection with the tag identification module, and a data archiving module in communicated connection with the processing module, the data archiving module is in communicated connection with the server, the processing module comprises a warning illustration module, a graphical inspection module, an intelligent line inspection module, a device location module, an exception management module and a statistical query module, which are all in communicated connection with the tag identification module. The inspection system has the beneficial effects of showing inspection or line inspection content in graphical form, effectively and intuitively reminding workers of carrying out specific activities, and effectively improving inspection efficiency and quality.
Owner:STATE GRID CORP OF CHINA +3

Three-dimensional perspective transforming method of two-dimensional graphics

ActiveCN103077546AUnified Manufacturing EfficiencyUniform Manufacturing QualityAnimation3D-image renderingGraphicsAlgorithm
The invention discloses a three-dimensional perspective transforming method of two-dimensional graphics, which comprises the following steps of: skeleton drawing; node mapping: mapping nodes on a two-dimensional molding graphic onto a skeleton according to the corresponding relation between the two-dimensional molding graphic and the skeleton as well as distances and orientation; skeleton adjustment: carrying out the three-shaft rotation of the skeleton by respectively passing around a rotating point and a rotating shaft, and carrying out three-dimensional adjustment; node back-projection: back-projecting the nodes into a three-dimensional space according to the orientation parameters of the nodes projected onto the skeleton by adopting a reverse calculating method, so as to obtain an adjusted three-dimensional modeling graphic object; and projection mapping of a three-dimensional modeling graphic: projecting the three-dimensional molding graphic of the three-dimensional space onto an appointed plane according to the position of a view point to obtain a two-dimensional perspective effect graphic. Through the mode, by adopting the three-dimensional perspective transforming method of the two-dimensional graphics provided by the invention, the efficiency of perspective adjustment in the producing process of two-dimensional cartoons is effectively improved, and the quality of the cartoons is effectively ensured while the cost is saved.
Owner:JIANGSU RUYITOON ANIMATION INDUSTRY CO LTD
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