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Hole Repairing in Triangular Mesh Models and B-Spline Surface Fitting

Author: ZhouJiuBing
Tutor: ZhouLaiShui
School: Nanjing University of Aeronautics and Astronautics
Course: Aviation Aerospace Manufacturing Engineering
Keywords: Reverse engineering Triangular grid Hole filling Parameterized B-spline surfaces Surface Fitting
CLC: V261
Type: Master's thesis
Year: 2004
Downloads: 340
Quote: 2
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Abstract


By measuring the mass data modeling in reverse engineering parts partial occlusion or limited means of measurement , there is often the missing data obtained triangular mesh model pore formation, which need to be patched holes to form a complete part model . The same time , in order to facilitate the retrofit design of parts and other follow-up application , the triangular mesh model into parameterized smooth B-spline surface model . In this paper, on the model of the triangular mesh holes patched and slice smooth B-spline surface fitting technology . The main work is as follows : in the study on the basis of the triangular mesh hole filling , designed a simple and effective means of plane closed hole filling algorithm , based on the curvature of the space enclosed holes patched algorithm and the island -shaped holes the patch has been studied . ● uniform sampling as well as smooth rectangular area within the data points re - slice the B-spline surface fitting problem . A space four border region uniform sampling method as well as the force balance principle - based sampling points evenly distributed optimization method , triangular mesh model re- uniform sampling and parameters . On this basis , to achieve a smooth triangular mesh model B-spline surface fitting . ● design and achieve a corresponding software module , and the above - mentioned algorithm instance validation .

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CLC: > Aviation, aerospace > Aviation > Aeronautical Manufacturing Technology > Manufacturing process and equipment
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