Relevant bibliographies by topics / 3D wireframe surfaces

Academic literature on the topic '3D wireframe surfaces'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "3D wireframe surfaces"

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Altuntas, C., S. Mert, G. Yaman, Y. Cengiz, and M. Sonmez. "PHOTOGRAMMETRIC WIREFRAME AND DENSE POINT CLOUD 3D MODELLING OF HISTORICAL STRUCTURES: THE STUDY OF SULTAN SELIM MOSQUE AND YUSUF AGA LIBRARY IN KONYA, TURKEY." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W11 (May 4, 2019): 77–82. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w11-77-2019.

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<p><strong>Abstract.</strong> The photogrammetry enables to getting high accuracy measurement with low-cost and easy application in documentation of historical structures. The object details are signified with lines in cultural heritage documentation by photogrammetry. The combination of all the lines create 3D wireframe model of the measurement object. In addition, patch surfaces of the wireframe are mapped with the texture from the images for more realistic visualization. On the other hand, the progress on computer vision and image processing techniques is allowing automatically perform the photogrammetric process. A large number of points that are called dense point cloud can be measured from coverage area of multi view images. The dense point cloud represents the object shape with small space measured points while the wireframe photogrammetry is representing the object with lines. In this study these two photogrammetric methods were evaluated with respect to visualization, cost, labour and measurement time through 3D modelling of historical structures of Sultan Selim Mosque and Yusuf Aga Library.</p>
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Leitao, Carlos, Judy Trogadis, and John Stevens. "Optimal 3D Representation of Serial Transmission Electron Microscopy Data." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (August 12, 1990): 612. http://dx.doi.org/10.1017/s042482010018183x.

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Three-dimensional representations of serial TEM data can provide useful visualization of morphological detail and spatial distributions of biological structures. The standard method of wireframe representation of 3D outlines of membrane contours can prove to be visually confusing. Thus alternate modelling for recreating biological surfaces from serial TEM data sets were investigated using the Icar 80.8 workstation (l).Serial TEM micrographs were collected from a PC12 cell whose nucleus had an invagination which contained organelles and microtubules. This nuclear tube is believed to play a role in nucleo-cytoplasmic exchange.Contours representing membrane boundaries of a nuclear tube as well as organelles found therein were traced and digitized from a set of serial electron micrographs using a data collection system described in (2). Lines representing the axes of microtubules were also collected.
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Rojas-Sola, José Ignacio, Gloria del Río-Cidoncha, Rafael Ortíz-Marín, and José María López-Pedregal. "Design and Development of Sheet-Metal Elbows Using Programming with Visual Basic for Applications in CATIA." Symmetry 13, no. 1 (December 28, 2020): 33. http://dx.doi.org/10.3390/sym13010033.

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This article introduces an innovative application of Visual Basic for Applications (VBA) (Visual Basic macro language) developed in CATIA (Computer-Aided Three-Dimensional Interactive Application), computer-aided manufacturing and engineering design software. Said application enables the three-dimensional (3D) representation and development to be obtained on a plane of the surfaces of cylindrical and conical elbows utilised to join two conduits, since CATIA lacks tools for the design of elements of metal fabrication. The application permits the geometric and dimensional parameters necessary for the creation and development of the analysed elbows to be introduced via a keyboard. Once these values have been entered and it has been verified that the design of the elbow is possible, then the application is programmed within the CATIA “Wireframe and Surface Design” module to obtain the 3D representation of said elbows, and the development of their surface is projected in the CATIA “Drafting” module. Consequently, the incorporation of this tool into CATIA software could increase technical-design productivity by eliminating certain intermediate operations, such as symmetry, and through improving the geometry training of less skilled users.
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Резников, К. Г., and С. Н. Медведев. "SOFTWARE DEVELOPMENT FOR RENDERING THREE-DIMENSIONAL SURFACES IN A WEB BROWSER." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 6 (January 14, 2022): 13–19. http://dx.doi.org/10.36622/vstu.2021.17.6.002.

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Представлена реализация программного обеспечения для построения трехмерных поверхностей с использованием трассировки лучей, выполняемого в веб-браузере персонального компьютера или смартфона. Подход веб-приложений стал широко применим в последние годы из-за развития сети Интернет. Современные веб-браузеры имеют достаточную вычислительную мощность для реализации сложных веб-приложений, а не ограничиваются только веб-сайтами. В процессе разработки были изучены различные методы построения поверхностей и методы визуализации, чтобы подобрать наиболее оптимальные для реализации веб-приложения. Были проанализированы и представлены базовые способы создания трехмерных поверхностей. Выделены ключевые различия каркасного и полигонального способа задания поверхности. Рассмотрен ряд моделей с процедурно вычисляемыми поверхностями. Подробно описан кинематический способ образования поверхностей, а также описан разработанный алгоритм для преобразования кинематических моделей в поверхность с использованием полигональной сетки. Подробно описан процесс визуализации и метод трассировки лучей. Продемонстрирован способ работы с видеочипом и распараллеливанию вычислений для оптимизации веб-приложения с помощью библиотеки GPU.js. Представлена структура веб-приложения с описанием главных каталогов проекта. Структура проекта основана на фреймворке Vue.js, благодаря чему функционал веб-приложения позволяет безгранично расширять. Для демонстрации работы веб-приложения представлен пример пошагового задания кинематической поверхности и визуализации на сцене с применением графических эффектов, таких как закраска и освещение, а также представлен пример с визуализацией множества объектов на сцене The article presents the implementation of software for rendering 3D-surfaces using ray tracing, running in a web browser of computers or smartphones. The web application approach has become widespread in recent years due to the development of the Internet. Modern web browsers have enough processing power to run complex web applications and are not limited to just websites. During the development process, various methods for constructing surfaces and visualization methods were analyzed to choose the most optimal solution for web applications. We analyzed and presented basic methods of creating 3D surfaces. We highlighted the key differences between wireframe and polygonal methods of surface definition. We considered several models with dynamic surface computation. We described the kinematic method of surface formation in detail and the developed algorithm for transforming kinematic models into a surface using a polygonal mesh. We described in detail the rendering process and ray tracing method. We demonstrated a way of working with a video chip and parallelizing computations to optimize a web application using the GPU.js library. We presented the structure of a web application with a description of the main project directories. The project structure is based on the Vue.js framework. The framework allows one to endlessly expand the functionality of a web application. The article presents how the web application works and example of step-by-step creation of a kinematic surface and rendering on a scene using graphic effects such as shading and lighting. Also it contains an example of rendering many objects on a scene
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Xia, Ming, Zhao Hui Wang, and Wen Bin Zhang. "A Novel Garment Prototyping Algorithm." Applied Mechanics and Materials 635-637 (September 2014): 1496–501. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.1496.

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New production techniques need to be developed in the clothing industry to satisfy the demands of customers. In this paper, a new algorithm, which can transform 3D surface of the prototype garment to 2D cutting pattern, was developed. The corresponding feature points with 2D prototype pattern were defined manually using 3D cursor on the body in advance. Further 3D wireframe of garment prototype was created by connecting feature points. The final pattern of the prototype was obtained by flattening geometrically 3D wireframe of each zone. The visual assessment was also made and proved the algorithm validity. This approach improved the flattened pattern practicality.
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Prakoonwit, Simant, and Ralph Benjamin. "3D surface point and wireframe reconstruction from multiview photographic images." Image and Vision Computing 25, no. 9 (September 2007): 1509–18. http://dx.doi.org/10.1016/j.imavis.2006.12.019.

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Park, Chan-Yong, Sung-Hee Park, Soo-Jun Park, Sun-Hee Park, and Chi-Jung Hwang. "ProteinVista: A Fast Molecular Visualization System Using Microsoft Direct3D." Journal of Nanoscience and Nanotechnology 8, no. 9 (September 1, 2008): 4522–26. http://dx.doi.org/10.1166/jnn.2008.ic78.

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Many tools have been developed to visualize protein and molecular structures. Most high quality protein visualization tools use the OpenGL graphics library as a 3D graphics system. Currently, the performance of recent 3D graphics hardware has rapidly improved. Recent high-performance 3D graphics hardware support Microsoft Direct3D graphics library more than OpenGL and have become very popular in personal computers (PCs). In this paper, a molecular visualization system termed ProteinVista is proposed. ProteinVista is well-designed visualization system using the Microsoft Direct3D graphics library. It provides various visualization styles such as the wireframe, stick, ball and stick, space fill, ribbon, and surface model styles, in addition to display options for 3D visualization. As ProteinVista is optimized for recent 3D graphics hardware platforms and because it uses a geometry instancing technique, its rendering speed is 2.7 times faster compared to other visualization tools.
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Cheng, Xiaolei. "Algorithm of CAD Surface Generation for Complex Pipe Model in Industry 4.0 Background." Computational Intelligence and Neuroscience 2022 (April 12, 2022): 1–12. http://dx.doi.org/10.1155/2022/7062052.

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The current pipeline surface generation algorithm cannot get the angle information of the corner of complex pipeline surface, which leads to the poor accuracy of the algorithm, the slow speed of 3D point cloud intelligent mosaic, and the large number of effective points. Therefore, a CAD surface generation algorithm for complex pipeline model under the background of Industry 4.0 is designed, extracting and rendering the wireframe model and extracting background of the complex pipeline video. We obtain the angle information of the corner points of the complex pipeline surface, extract and match the feature of the dense point cloud, and construct the 3D point cloud data mosaic model. The pipe surface is generated by using double-nodal B-spline. The experimental results show that the precision and stability of the proposed method are high. In the early stage, the proposed method uses ISS feature extraction algorithm to extract feature of point cloud data, which improves the positioning accuracy effectively and enhances the 3D point cloud intelligent stitching speed.
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Ijaware, V. A. "Comparative Analysis of Ellipsoidal Height and Shuttle Radar Topographic Mission Elevation." Journal of Applied Sciences and Environmental Management 24, no. 8 (September 9, 2020): 1397–402. http://dx.doi.org/10.4314/jasem.v24i8.14.

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Ellipsoidal elevation represents a precise geospatial data type within the analysis and modelling of various hydrological and ecological phenomenon required in preserving the human environment. Likewise, Shuttle Radar Topographic Mission (SRTM) has created an unparalleled data set of global elevations that are freely available for modelling ubiquitous environmental applications. This research aims to carry out a comparative analysis of ellipsoidal heights and SRTM heights with the following objectives: downloading DEM’s (SRTM) data covering the study area, determining the spot heights within the boundary in conventional method, extract DEM’S heights within the boundary of the study area, and compared the heights in the conventional method with DEM’S heights. South GPS and Leica Total Station were used to acquire data for control extension and spot heightening respectively while the elevation of SRTM data was obtained by transforming the X and Y data from GPS observationto Longitude and Latitude before using ArcGIS 10.6 to extract the elevation of the boundary pillar and all the spot heights which were relatively compared in terms of its products- heights, contour, 3-D wireframe, 3-D surface model, and overlaid of contour on shaded relief. The results of the study showed that vertical difference using conventional method and SRTM dataset ranges between -2.345m to 11.026m. Also, the hypothesis tested using a two-tail student t-test and F-test revealed that one mean is not significantly different from the other at 95% confidence level. The research recommends that the products obtained for the two systems can be used interchangeably. Keywords: Shuttle radar topographic mission, Ellipsoidal elevation, contour, 3D wireframe, 3D surface model
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Choi, Kuengmi, Jungil Jun, Youngshil Ryoo, and Sunmi Park. "Digital-Based Healthy Bra Top Design That Promotes the Physical Activity of New Senior Women by Applying an Optimal Pressure." International Journal of Environmental Research and Public Health 18, no. 9 (April 27, 2021): 4651. http://dx.doi.org/10.3390/ijerph18094651.

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A bra use can reduce physiological and physical functions because of clothing pressure, which can be a problem for new senior women starting to lose physical function. The present study presents a bra top design development method for promoting new senior women’s physical activity by identifying problems related to bras’ effects on women’s health and minimizing clothing pressure. The analysis utilized the 3D scan data of 42 adult women (age range: 50s) from the 5th Size Korea Project. Bra top design elements were extracted based on new senior consumers’ needs. We developed an average wireframe reflecting the new senior’s physical characteristics, and a standard body form was developed through surface modeling. To produce a consumer-oriented bra with a body shaping effect and reduced clothing pressure that would not affect physical activities, a three-dimensional pattern was developed applying an optimal reduction rate of 80%. To verify the bra’s adequacy for the body form of new senior women, two market-available bras were selected and fit-compared to the developed product. The developed bra received higher expert appearance evaluation and 3D virtual clothing evaluation scores. This study is significant because by using virtual fitting technology, it provides foundational data to quantify the quality of fashion products.
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Book chapters on the topic "3D wireframe surfaces"

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Zhao, Zhengxu, G. N. Blount, R. M. Jones, and R. W. Baines. "Representation of Surfaces in 3D Wireframe Models." In Proceedings of the Thirtieth International MATADOR Conference, 573–80. London: Macmillan Education UK, 1993. http://dx.doi.org/10.1007/978-1-349-13255-3_73.

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Conference papers on the topic "3D wireframe surfaces"

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Mishra, Amitesh, and Anupam Saxena. "On Preliminaries of 3D Solid Reconstruction Using Auxiliary Views." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84230.

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In this paper is proposed a method to reconstruct a solid from given two or three orthographic views along with any number of primary auxiliary views based on the combination of wireframe and volumetric approaches. None of the existing works in automatic reconstruction of solids from two dimensional orthographic views have addressed auxiliary views in detail. Polyhedral approximation of cylindrical, conical, toroidal and spherical surfaces is considered. The algorithm presented, entails the construction of the basic wire-frame from given standard views using the wire-frame approach. The projections in the auxiliary views on the basic orthographic views are swept along the projection lines to form the primitives. These primitives are glued to the basic wire-frame to construct the final solid. Numerous examples are presented in this paper to demonstrate the versatility of the proposed method which can handle partial standard and auxiliary views as well.
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Arisoy, Erhan Batuhan, and Levent Burak Kara. "Topology Preserving Digitization of Physical Prototypes Using Deformable Subdivision Models." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34390.

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Physical prototyping is an important stage of product design where designers have a chance to physically evaluate and alter digitally created surfaces. In these scenarios, designers generate a digital model, manufacture and alter the prototype as needed, and redigitize the prototype through scanning. Despite the variety of reverse engineering tools, redigitizing the prototypes into forms amenable to further digital editing remains a challenge. This is because current digitization methods cannot take advantage of the key elements of the original digital model such as the wireframe topology and surface flows. This paper presents a new reverse engineering method that augments conventional digitization with the knowledge of the original digital model’s curve topology to enhance iterative shape design activities. Our algorithm takes as input a curve network topology forming a subdivision control cage and a 3D scan of the physically modified prototype. To facilitate the digital capture of the physical modifications, our algorithm performs a series of registration, correspondence and deformation calculations to compute the new configuration of the initial control cage. The key advantage of the proposed technique is the preservation of the edge flows and initial topology while transferring surface modifications from prototypes. Our studies show that the proposed technique can be particularly useful for bridging the gap between physical and digital modeling in the early stages of product design.
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Lelièvre, Peter G., Colin G. Farquharson, and Rodrigo Bijani. "3D potential field inversion for wireframe surface geometry." In SEG Technical Program Expanded Abstracts 2015. Society of Exploration Geophysicists, 2015. http://dx.doi.org/10.1190/segam2015-5873054.1.

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Тюрина, Валерия, Valeriya Tyurina, Сергей Ротков, Sergey Rotkov, Татьяна Мошкова, Tat'yana Moshkova, Марина Лагунова, and Marina Lagunova. "The problem of ambiguity in the task of synthesizing a wireframe model objects according to a technical drawing." In 29th International Conference on Computer Graphics, Image Processing and Computer Vision, Visualization Systems and the Virtual Environment GraphiCon'2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/graphicon-2019-1-201-204.

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The level of quality of the wireframe model obtained in the first stage of solving the problem of restoring the image of a non-planar object depends on the completeness of using the classes of graphic information used to synthesize a 3D model according to the technical drawing. In cases where the drawing is quite simple and allows you to read complete information about the object by existing procedures of automatic "reading the drawing", it is possible to restore the frame models that are fully consistent with the synthesized object. They can be used immediately for further transformations to other types of 3D models. Such frame models are characterized by the fact that all the vertices and edges included in their structure belong to the surface of the desired object. But in most practical cases, when the simulated objects correspond to real products and their technical drawing is full of difficult to formalize information, in the structure of frame models built according to standard procedures, due to a number of objective reasons, there are false geometric elements, i.e. those that are not on the surface of the desired 3D object. This leads to the ambiguity of the restoration of a unique wireframe model corresponding to the object specified in the technical drawing, and requires the development of procedures to avoid the multiplicity of solutions.
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Phuong, Guy, Sylvester Abanteriba, Paul Haley, and Philippe Guillerot. "Centrifugal Compressor Volute Design Software." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45682.

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Volutes are widely used in centrifugal compressors for industrial processes, refrigeration systems, small gas turbines and gas pipelines. However, large costs associated with the volute design and analysis process can be reduced with the introduction of a software design system that ties together both geometry creation and mesh generation having the ultimate intent of improving stage efficiency. Computational Fluid Dynamics (CFD) has become an integral part of engineering design. High quality grids need to be produced as part of the analysis process. Engineers of different expertise may be required to determine volute design constraints and parameters, produce the geometry, and generate a high quality grid. The current research aims to develop and demonstrate a volute design tool that allows design engineers the ability to easily and efficiently generate volute geometry and automate grid generation by means of geometrical constraints using functional relationships. The approach was outlined in [1]. Visualization of volute geometry can be in two-dimensional (2D) or three-dimensional (3D) modes. Control of the diffuser upstream of the scroll, the scroll itself and the conic are totally integrated in the design system. The user can position the conic anywhere in space and control the shape of the conic centroid curve, therefore having complete control over the development of the tongue region. The program will output data for automated grid generation where user can control resulting grid properties. Once the desired design configuration has been determined, the users can output the geometry surfaces and wireframes to a Computer Aided Design (CAD) package for production. Every little detail is also incorporated into the software from volute draft angle, discharge conic centroid shape, to cross section fillet radii. Upon entering all the required constraints and parameters of the volute, the geometry is created in seconds. Grids can be generated in minutes accommodating geometrical changes thus reducing the bottlenecks associated with geometry/grid generation for CFD applications.
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