80 results about "Graphics library" patented technology

The invention relates to an OpenGL (Open Graphics Library)-based large-scale three-dimensional model object quick pickup method. The method comprises the following steps: converting an interactive operation of a user into a three-dimensional space structure; a CPU constructs octree space acceleration structures based on a bounding box of an object in a large-scale three-dimensional model, and leaf nodes, intersecting with a pickup ray or a pickup view pyramid, of an axis alignment bounding box in each octree space acceleration structure are screened out to serve as candidate leaf nodes; collecting triangles contained in all candidate leaf nodes, and constructing a candidate triangle set; dynamically allocating thread groups and threads of the GPU based on the number of candidate triangles in the candidate triangle set; and performing highlight display on the candidate triangles intersected with the pickup ray or the pickup view cone, and feeding back IDs of the corresponding candidate triangles. According to the method, the data transmission quantity and the video memory access pressure are remarkably reduced, the pickup response time is greatly shortened in a large-scale three-dimensional model scene, and the requirements of real-time interaction and visual operation can be met.

The invention discloses an electric connector detection system and method based on vision, and belongs to the field of machine vision and industrial detection, and the system comprises a large constant water star series industrial camera, a multi-angle and high-uniformity adjustable light source system, a product feeding moving and packaging mechanism, a computer control system and UI software. Wherein the computer control system adopts multi-thread scheduling, a modular architecture and a sub-pixel-level algorithm, and supports high-throughput processing of 3-6 4024 * 3036 pixel industrial cameras, an image acquisition module of the computer control system can uniformly manage multiple models of cameras, and a UI (User Interface) is a drag-and-drop interface and integrates debugging tools such as OpenGL (Open Graphics Library) and parameter hot loading; the method comprises the steps of hardware configuration, trigger starting, image acquisition, positioning correction, ROI drawing, detection, reference line determination, size measurement and sorting control, ROI drawing can adapt to regular and irregularly arranged pins, the adaptability is high, the precision is high, operation is convenient and fast, full-process automatic detection can be achieved, and the requirement of a high-speed production line is met.

The invention discloses a general game development engine system based on OpenGL (Open Graphics Library). The general game development engine system comprises an application program control module and an application program module, the application program module comprises an input processing module, a terrain module, a game AI module, a GUI graphical interface module and a rendering output module; the control module is used for initializing an OpenGL environment and calling a terrain in the program module, and the GUI module is used for initializing game pictures; calling an input processing module to obtain input data of a user, and calling a game AI module to perform interaction between the user and a game picture; updating data of the terrain, the GUI, the sound effect and the game AI module; a rendering output module is called to form a specific game picture and render the game picture, a game cycle of initialization-data updating-picture rendering is constructed, and a complete game cycle is formed; the 3D / 2D game engine framework based on the OpenGL is created by integrally designing components and modules necessary for a general game engine, and a game project is quickly constructed.

The invention is suitable for the technical field of GPU, and provides a shader-based OpenGL dotted line function implementation method and system. The method is applied to OpenGL graph driving, and is used for processing glLineStille incoming data and generating an instruction stream, and guiding GPU hardware to render a dotted line conforming to an OpenGL standard specification. Due to the fact that a GPU manufacturer does not disclose a method for achieving the dotted line function in the market at present, the method and system for achieving the dotted line function based on the shader can meet the function requirement of a glLineStille interface in an OpenGL, are used for guiding development of a graph driving program, do not require GPU hardware to have a dotted line drawing function, and are high in flexibility and wide in universality.

The invention relates to the technical field of computer data processing, in particular to a multi-language display method and system and wearable intelligent equipment. The method comprises the following steps: segmenting the content of a display text based on language types of various font sub-files cached in advance; all the segments are reset based on a typesetting engine, font contour information of all the characters is output, and the font contour information comprises deformation and connected characters; typesetting information is determined on the basis of line width limitation of the lightweight general graphics library, and the typesetting information comprises line tail broken lines, word spacing and self-adaptive zooming; and based on the typesetting information and the font contour information of all the characters, selecting a dot matrix font drawing mode / vector font drawing mode for rendering. By means of the method, multi-language compatibility can be achieved, and meanwhile the problems of line breaking errors, character pattern dislocation or extremely low rendering speed and the like occurring when mixed text rendering is processed are solved.

The invention discloses a realistic simulation method for a fluffing and pilling process of a knitted fabric under a fiber scale, and relates to the technical field of realistic simulation of the fluffing and pilling process of the knitted fabric in the textile industry. The method aims at solving the problems that an existing knitted fabric fuzzing and pilling simulation method is difficult to accurately simulate a complex process on the fiber scale, and a simulation result lacks a sense of reality. The method comprises the following steps: constructing a mass point-spring model of the knitted fabric, discretizing yarn sections into mass points and connecting the mass points through a virtual spring, integrating a fiber entanglement calculation module on the basis of the model, simulating complex entanglement behaviors among fibers by adopting a diffusion limitation aggregation model, and calculating normal contact force and tangential friction force in real time. When the tangential friction force exceeds a fiber cohesive force threshold value, triggering a fuzzy ball to form an initial condition; defining and calculating local friction energy, and generating a fuzzy ball surface texture in combination with a Perlin noise function and a fractal texture technology; and finally, realizing high-quality rendering and developing a user interaction interface by utilizing a high-level graphics library.

The silicon steel sheet machining equipment comprises an unwinding mechanism, a shearing mechanism, a first driving device, a feeding mechanism and a control system, the feeding mechanism comprises a first limiting module and a second limiting module, an iron core graphic library is arranged in the control system, and various silicon steel sheet graphs are stored in the iron core graphic library; the control system can be used for selecting one silicon steel sheet pattern and can be used for adjusting a width parameter and a shearing length parameter of the silicon steel sheet pattern; the feeding mechanism further comprises a synchronizing mechanism, the control system adjusts the first limiting module and the second limiting module through the synchronizing mechanism according to the width parameters of the silicon steel sheets, and the control system controls the unwinding speed of the unwinding mechanism according to the shearing length parameters of the silicon steel sheets and controls the first driving device to drive the shearing mechanism to move. On the basis of graphics library control, the adjustable shearing mechanism and the adjustable feeding mechanism are combined, and corresponding graphics and parameters are selected when products are replaced, so that machining of silicon steel sheets of various specifications can be automatically adapted.

The invention relates to a precise stamping layout method, which establishes a landing edge distance calculation model through parameterized correlation of the thickness and tensile strength of a material, realizes precise layout parameter matching of a metal plate, and improves the material utilization rate and layout efficiency. By establishing a layout algorithm based on geometric symmetry, the manual intervention requirement is remarkably reduced, and meanwhile the dual requirements for the service life of the mold and material saving are considered. Besides, based on a symmetric graphics library construction method, 360 kinds of centrosymmetric layout combinations are generated through an indexing interval discretization processing method, geometric coordination guarantee is provided for multi-cavity parts, and calculation complexity is greatly reduced.

The invention provides a method and a system for quickly encoding an image in a 3D (three-dimensional) engine. The method for quickly encoding the image in the 3D engine comprises the following steps of: rendering the contents of a plurality of Cameras to the same RenderTexture, and distinguishing the positions of different Cameras; obtaining a bottom layer graphics library pointer of a RenderTexture object through a RenderTexture.GetNativeTexturePtr method provided by Unity, and obtaining a bottom layer graphics library pointer of the RenderTexture object according to the bottom layer graphics library pointer of the RenderTexture object and the bottom layer graphics library pointer of the RenderTexture object and the bottom layer graphics library pointer of the RenderTexture object and the bottom layer graphics library pointer of the RenderTexture object and the bottom layer graphics library pointer of the RenderTexture object. A graphic pointer is obtained through RenderTexture, a resource format is converted and mapped into a CUDA memory, a GPU is used for coding into a preset format, and a video memory is reused to reduce resource consumption. The system comprises modules corresponding to the steps of the method.

The invention provides a display method and device, equipment and a medium, and relates to the technical field of computers, in particular to the technical fields of page rendering, human-computer interaction and the like. According to the implementation scheme, in response to the received at least one touch data, a first drawing command is sent to a graphics processing unit (GPU) of the electronic equipment, and the first drawing command is used for triggering the GPU to execute a first drawing operation so as to obtain first handwriting; and submitting the first handwriting to a display controller of the electronic equipment by calling a graphics library interface, so that the display controller displays the first handwriting on an upper layer of a first interface currently displayed on a screen.

The invention provides a modeling method and system supporting UML visualization and a readable storage medium. The modeling method supporting UML visualization comprises the steps that a graphics library is obtained, and the graphics library comprises at least one symbol; obtaining a chart, and establishing association between the chart and the symbols so as to configure the required symbols for the chart; acquiring symbols associated with the chart, and generating a canvas corresponding to the chart; dragging the symbols into a canvas for drawing to form graphic information and a graph corresponding to the graphic information; and storing the graphic information in a database, and analyzing a graph corresponding to the graphic information to form a UML model. Therefore, a graphical modeling tool is constructed from basic graphic elements such as symbol definition and chart configuration, and UML visual modeling is realized.

The invention relates to an external display screen driving method and system based on an Android system, an external display screen is connected with Android equipment through a low-speed serial interface, and the method comprises the steps that S1, a Native layer initialization function is called through a JNI interface on an Android application layer; s2, an LVGL graphic library is loaded on a Native layer; s3, registering and adapting external display screen hardware of the low-speed serial interface through a display driving interface of the LVGL graphics library; s4, executing a color space conversion algorithm on the Native layer, and converting color graphic data output by the LVGL graphic library into color format data suitable for the target external display screen; and S5, transmitting the converted display data to an external display screen through a device driving interface of the Linux kernel. According to the method, the lightweight LVGL graphics library is integrated into the Android application through the JNI technology, and the display screen connected through the low-speed serial interface is directly driven in the user space, so that the efficient and flexible display driving is realized under the condition that the source code of the Android system is not modified, and the multi-screen different display function is supported.

Techniques for aircraft communication are described. In an aspect, aviation data in a first format is parsed to identify a type of aviation data, where the aviation data includes at least one of textual content and non-textual content. The aviation data is transformed from the first format to a second format compatible to be transmitted over an Aircraft Communications Addressing and Reporting System (ACARS) network in correspondence to the identified type of the aviation data, where the transforming of the aviation data based on the identified type includes invoking graphical libraries to transform non-textual content into a format compatible with the ACARS network. Further, the transformed aviation data is transmitted to at least one destination over the ACARS network. In another aspect, receiving and processing ACARS messages by transforming them into a format suitable for rendering at a destination are provided, where the message includes textual and non-textual content.

The invention discloses a household photovoltaic plotting method and system, and belongs to the technical field of household photovoltaics, and the method comprises the following steps: converting private graphic data into general format data based on a format conversion rule, and packaging an internal graphic element object and a geometric calculation rule thereof based on the general format data to obtain a graphic library; defining a business object and business logic according to the graphic library to obtain a domain entity library, and matching the external graphic data with the domain entity library to obtain a domain object document; and obtaining the household photovoltaic graph based on the domain object document. The graphic library is obtained by packaging the internal graphic element object and the geometric calculation rule of the internal graphic element object, the business object and the business logic are defined according to the graphic library to obtain the domain entity library, decoupling of the business object and the business logic from the platform is achieved, when external graphic data are obtained, the external graphic data only need to be matched with the domain entity library to obtain the domain object document, and the user experience is improved. And a household photovoltaic graph is obtained. The dependence on a specific platform is broken through, and the adaptability is remarkably improved.

A compact embedded linux system firmware security upgrading method comprises the steps that a main application module obtains upgrading firmware and completes verification, and an upgrading command is sent to an application management module through process communication; the application management module starts a monitoring task, when an upgrading command message is received, a main application module and related system services are stopped, a dynamic library file needed by upgrading is copied to a memory directory, a system dynamic library environment path is repositioned to the memory directory, and an upgrading module is started; and the upgrading module calls the graphics library, and the obtained upgrading firmware is programmed to complete system firmware upgrading. Relevant necessary dynamic library files are copied to a specified directory through application management, an environment variable points to the directory, a main application is stopped, firmware is programmed, a dynamic library path is dynamically relocated, the relocated dynamic library is safely used in the upgrading process, the upgrading safety is guaranteed, and the upgrading efficiency is improved. And meanwhile, additional space backup firmware is not needed.

The invention discloses a pattern management method and device based on a graphics library, equipment and a medium. Comprising the steps of determining multiple graphic style objects according to a graphic library; wherein each graphic style object at least comprises graphic configuration information determined according to at least one basic graphic in a graphic library; storing the graphic style objects in groups to obtain a plurality of style groups; wherein each pattern group comprises at least one graphic pattern object and an initialization identifier corresponding to each graphic pattern object; and determining initialization operation information of the first graphic style object in each style group, and configuring an initialization identifier corresponding to the first graphic style object according to the initialization operation information. According to the method, the graphic style objects are subjected to grouping management, and the initialization information of each graphic style object is carried in the grouping management, so that the memory overhead caused by frequent repeated initialization of the graphic style objects is reduced, the memory allocation frequency is reduced, and the memory fragmentation degree is further reduced.

The invention provides a curve-based wiring layer GDSII optimization method and system, a medium, a program and an electronic terminal.The method comprises the steps that initial wiring is generated through a Manhattan type global wiring algorithm to serve as a base line, then the initial wiring is compared with a preset wekpoins graphic library to mark a wekpoins area in the initial wiring, only the wekpoins area is traversed, and the initial wiring is subjected to GDSII optimization; and the right-angle configuration blocks are screened out for curve replacement. Therefore, a wekpoins area is reduced under the condition that global curve wiring is not carried out, and a physical design drawing is consistent with a circuit wiring form of actual wafer photoetching; in addition, compromise among sharp corner electric stress weakening, data increment compression, calculation acceleration or template rapid replacement can be achieved by selecting different curve replacement strategies.

The invention provides a two-axis turntable image rotation eliminating method based on inertial navigation data, which comprises the following steps: acquiring an original image in real time by an image acquisition device mounted on a two-axis turntable, and determining parameter information of a video texture map according to the original image; calculating a rotation transformation matrix A1 by using azimuth data and pitch angle data generated by rotation of the rotary table, and calculating a rotation transformation matrix A2 by using inertial navigation data of an inertial navigation system; converting a normal vector of a horizontal plane from a horizontal coordinate system xlylzl to a sensor coordinate system xsyszs, and calculating an image spinor alpha; and carrying out image rotation elimination display on the video texture map by taking the image rotation alpha as a rotation parameter and utilizing a rotation and cutting mechanism of OpenGL (Open Graphics Library). According to the attitude angle of the base of the two-axis rotary table and the axis angle data of the two-axis rotary table, the angle amount of the horizon line projected in the image space is calculated, the angle amount serves as the rotation compensation amount during display, namely, the image spinor alpha, and display is achieved through the rotation and cutting mechanism of OpenGL.

A CAD secondary development survey and drawing auxiliary design system includes: establishing a survey standard graphics library and implementing survey and design drawing auxiliary tools; setting survey projects and drawing information; arranging holes on a plan view; setting a unified hole depth for the survey holes on the CAD drawing; marking the hole depths of all selected survey holes in the hole depth text field; selecting multiple holes on the CAD drawing and connecting the selected holes with cross-section lines; then selecting holes and cross-section lines, disconnecting or connecting the selected survey holes with the cross-section lines, and reordering the cross-section line drawing points; exporting or importing data on the CAD drawing as needed; checking the content of the survey CAD drawing and providing error prompts. The present invention realizes the rapid batch automated auxiliary design of highly repetitive survey hole arrangement, cross-section line drawing, parameter setting, and other tasks in the survey plan CAD drawing design process, thereby improving the efficiency and design quality of survey CAD design and drawing.

The embodiment of the invention provides a text rendering method, a font transformation method and related equipment, and belongs to the technical field of graphic rendering. The text rendering method comprises the following steps: receiving a text editing instruction through a Web drawing board, and identifying a target character and a font style in the text editing instruction; analyzing a vector font file corresponding to the font information, and extracting original contour vertex data of the target character; if the font information is inconsistent with the font information of the vector font file, transforming the original contour vertex data according to the font information, and storing the transformed contour vertex data into a buffer region corresponding to the color information; and calling a webpage graphics library drawing instruction, and carrying out combined drawing on the vertex data in the buffer area on the Web drawing board. Different font styles can be realized based on one font file.

The invention discloses a robot motion pose visualization method and device and a storage medium, and relates to the technical field of robos.The method comprises the steps that according to DH parameters of all connecting rods of a robot, connecting rod pose information and joint pose information of the robot are determined; according to the DH parameters, the model joint size of the robot and the model connecting rod size of the robot are determined; and inputting the connecting rod pose information, the joint pose information, the model joint size and the model connecting rod size into a graphics library to obtain a robot model. According to the invention, the process of visualizing the motion pose of the robot can be simplified.

An apparatus and method for performing efficient sharing of network-based resources. In various implementations, a computing system includes a remote server providing a streaming service to a client computing device over a network. The remote servers include shared resources that provide services and content on the client computing device. When executing instructions of a shared layer of a graphics library, the circuitry of a parallel data processing circuit of the remote server searches for any instances sharing the image object. If there are any instances sharing the image object, then the circuitry maintains the image object stored in a first location of the local shared memory. The circuitry performs a copy on write operation using a local non-shared memory to generate the copy of the first image object in a second location different from the first location of the local shared memory.

The invention relates to an OpenGL (Open Graphics Library)-based embedded human-computer interface code generation method, and belongs to the field of automatic code generation. A human-computer interface code model in an onModel tool is stored as a file in an XML format, the invention provides a method for automatically generating a C code from a model file, and the method comprises the following steps of: analyzing the file by using an XML analyzer, and dividing model data into different modules; according to different module data, calling a code generation function to generate a code; and calling an adaptation layer interface to complete code generation. According to the generation method disclosed by the invention, the human-computer interface model in the onModel tool can be generated into the graphic rendering C code based on the OpenGL. The OpenGL has a cross-platform characteristic, so that the generated C code can be applied to any target platform, and repeated compiling of the code is reduced.

The invention provides a method and system for redirecting Chinese font display to a virtual display card and displaying the Chinese font display, and the method comprises the following steps: S1, intercepting an operation of a physical display card, and realizing Bitmap display by using OpenGL (Open Graphics Library); s2, based on the Bitmap displayed in the step S1, rendering the Bitmap into a 3D texture so as to remove jagging of the edge of the Chinese character; s3, on the basis of the 3D texture processed in the step S2, creating a word size and font buffer chain table so as to improve the display speed of a virtual graphics card VirtIO-GPU; and step S4, integrating the processing logics in the step S1 to the step S3, and compiling to generate a redirected font library dynamic file libopengfont.so. According to the method, the behavior of the physical display card driver is intercepted and redirected to the VirtIO-GPU, so that the display of the 3D Chinese characters is realized.

The application provides an adaptive equidistant display method and device for engineering safety monitoring time series data, relates to the technical fields of data visualization and engineering safety monitoring, and comprises the following steps: calculating a time axis display range based on a timestamp sequence of all data points; calculating a target label quantity according to the screen width of a display device in combination with a preset minimum label spacing and character width; generating a set of equidistantly distributed virtual scale points based on the target label quantity and the time axis display range; hiding the original scale lines of the X axis, taking the set of virtual scale points as a label positioning reference, drawing text labels at the corresponding positions, and obtaining a scale label array; and generating a vertical reference line for each point in the set of virtual scale points after each update through the marking line function of a graphics library, and displaying the vertical reference line and the scale label array. The application can overcome the defects of the traditional ECharts visualization scheme in the display of non-fixed cycle monitoring data.

The application discloses a kind of situation map two three-dimensional integration rendering method, the method is based on tile pyramid model organization two three-dimensional map data, by real-time projection transformation realizes two three-dimensional dynamic switching.Grid tile and vector tile are used to efficiently render remote sensing image and vector;Integrated situation graphics library is constructed, unified organization and rendering of situation target graphics are realized, and the efficiency of graphics rendering is improved by using GPU hardware acceleration.Compared with traditional two three-dimensional view independent rendering, it saves storage space, reduces data redundancy, realizes two three-dimensional real-time dynamic switching under the same view, and provides unified display effect.Using vector tile significantly improves the efficiency of vector data rendering, and the integrated graphics library provides a faster way for situation graphics display, making battlefield environment simulation more convenient and smooth, and improving user experience.

The invention relates to the technical field of document processing and automation, in particular to a graphical tool and bidding document generation system and method based on a large model, and the method comprises the steps: obtaining a natural language description or bidding document template document input by a user, and recognizing a graph in the document to generate placeholders; the input information is sent to a large language model for semantic analysis and reasoning, and structured graphic data conforming to predefined JSON Schema is output; based on the data, calculating a non-overlapping and cross-minimized graphic element space layout through an automatic layout algorithm, driving a vector graphic library to generate a standard vector graphic and converting the standard vector graphic into a bitmap format; finally, the bitmap is automatically inserted into the position of a placeholder corresponding to the bidding document, map note adding and format adjusting are completed, and a complete bidding document of an integrated graphical representation is output. According to the method, end-to-end automatic generation from a natural language to a professional graphical representation is realized, and the bidding document compiling efficiency and the graphical representation quality are remarkably improved.

Provided are a method, a system and an electronic device for implementing flexible graphics enhancement and execution. For example, a flexible graphics enhancement and execution component can be an integrated element of a graphics application programming interface (API) that allows a visual effect of style to be added to the 3D graphics rendered from a mobile game. The techniques can include intercepting an initial function call, where the initial function call is associated with a graphics API rendering an image for an application. Then, a custom function can be automatically generated, based on the intercepted initial function call. A pointer associated with the generated custom function can be returned to the application, where the custom function modifies an output from the graphics API to add a visual effect to a three-dimensional (3D) rendered image of the application. The graphics API can be an Open Graphics Library (OpenGL) API.

The invention discloses a television-oriented multi-application collaborative rendering method, system and device and a medium, and the method comprises the steps: receiving an information source rendering request and a first picture bearing surface object transmitted by a non-system application through a preset cross-process communication channel which is established through an AIDL interface, the first picture bearing surface object is obtained from a picture bearing component created by a non-system application; a private interface method of the television view component is called through a reflection mechanism, so that a second picture bearing surface object originally bound with the television view component is replaced with the first picture bearing surface object, a control interface of the television view component is called according to the information source rendering request, and the information source is driven to be output to the first picture bearing surface object. And the information source rendering is realized by multiplexing an open graphics library of a television view component in a picture bearing component of a non-system application. According to the invention, efficient multi-application collaborative rendering can be realized, and the user experience is improved.

A system and method uses a two-dimensional graphics library to generate an image representation that can be used by a three-dimensional graphics library to render the image.