Under the guidance of relevant theories of computer graphics, in order to solve the complex internal structure of ternary phase diagram, this paper realized the reconstruction of ternary phase diagram through a small ...
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ISBN:
(纸本)9781467390989
Under the guidance of relevant theories of computer graphics, in order to solve the complex internal structure of ternary phase diagram, this paper realized the reconstruction of ternary phase diagram through a small quantity of data and proposed a novel method to calculate and draw the equivalent section of model-based 3D graphics. Knowledge relating to Bezier surface is used in this paper to realize the liquidus surface reconstruction of ternary phase diagram, and winged-edge data structure, intersection of bicubic Bezier surface and plane are adopted to design proper datastructure and algorithm. Transferring the intersection of ternary phase diagram with the section to the intersection of surface with the section as well as to the intersection of plane with the section, which will sort and connect the intersections and further define the corresponding intersecting line. Such method can realize the visualization of the internal structure of ternary phase diagram well. The intersection algorithm of the solid phase, liquid phase of ternary phase diagram with section is founded through examples, in which the sectional drawing is obtained in a quickly and intuitive manner. The algorithm has considerable speed and stability, and it is suitable for the creation of sectional drawing of ternary phase diagram.
The winged- and half-edgedatastructures are commonly used representations for polyhedron models. Due to the complexity, students in an introductory course to computer graphics usually have difficulty in handling the...
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The winged- and half-edgedatastructures are commonly used representations for polyhedron models. Due to the complexity, students in an introductory course to computer graphics usually have difficulty in handling these datastructures and developing applications. This paper describes the authors' effort in the development of a visualization and animation tool for teaching and learning these datastructures. This tool also includes a simple pseudo-code-like language for algorithm design. Instructors may employ this tool for presentation and demonstration purposes. Students may use the simple language to develop and experiment with new algorithms before their actual implementation. The visualization and animation system may be used to explore and understand the relationship among mesh elements and algorithm execution. (C) 2007 Elsevier Ltd. All rights reserved.
Puzzle-based learning, problem-based and project-based learning are main methods used by academics. When a teacher devises a course design plan with about half month duration, a puzzle-based plan may be too narrow whi...
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ISBN:
(数字)9783642224560
ISBN:
(纸本)9783642224553
Puzzle-based learning, problem-based and project-based learning are main methods used by academics. When a teacher devises a course design plan with about half month duration, a puzzle-based plan may be too narrow while a projected-based plan may be too big at the same time. We talk about applying problem-based learning in course design in the paper. A winged-edge data structure is employed in our java course design plan in order to express a complex problem with a single datastructure. With this complex problem, the plan can make students have great leeway to include as many as possible concepts, such as class, interface, encapsulation to their final work. Students are grouped in order to develop their team spirit in studying.
The winged-edge data structure is advantageous for traversing the topological graph of the boundary representation of a solid object. This paper presents an algorithm for converting hierarchical boundary representatio...
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This paper presents an algorithm for the automatic generation of solid objects from three-dimensional wire-frame data. In this work, as we mainly use topological information of wire-frame data, we can achieve high-spe...
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