本文選題：三維造型 + 三維模型線表示方法��； 參考：《浙江大學》2012年碩士論文

【摘要】：動漫、玩具和電影產業(yè)是文化創(chuàng)意產業(yè)的重要組成部分,正處于快速發(fā)展時期,但是隨著發(fā)展水平的逐漸提高,我國在產品創(chuàng)新設計方面的不足,成為了制約這些產業(yè)發(fā)展的主要瓶頸。結合國家863計劃項目“柔性復雜產品快速創(chuàng)意數(shù)字化設計方法研究及其應用”(2009AA04Z103),本文對產品的創(chuàng)新設計的重要組成部分——三維造型設計進行了深入研究。產品三維造型設計由于具有幾何形狀的完全表達能力,正在產品創(chuàng)新設計中占據(jù)越來越重要的地位。但是現(xiàn)有三維造型軟件操作復雜,不能很好地支持手繪草圖,限制了企業(yè)的產品設計能力。為此本文提出了利用特征基因表達三維模型幾何特征,通過草圖繪制語義修改特征基因,并進一步實現(xiàn)三維模型變形的三維造型方法,從而實現(xiàn)草圖三維造型。全文共分為以下六章： 第一章：概述了我國動漫、玩具和電影行業(yè)發(fā)展現(xiàn)狀,闡述了其產品設計現(xiàn)狀以及其中存在的問題,并對國內外相關領域的研究情況進行了借鑒性介紹。由此給出了本文的研究內容和研究思路。 第二章：給出了特征基因的定義、提取和優(yōu)化方法。首先在對三維模型主要的線表示方法進行詳細分析的基礎上,給出了特征基因定義。然后對特征基因在三維空間提取算法進行了闡述。最后利用矢量化和簡化處理,對特征基因進行優(yōu)化。 第三章：探討了草圖繪制語義、草圖驅動特征基因變形及特征基因三維映射的基本方法。首先在對設計師常用草圖繪制方法的歸納基礎上,提出了草圖繪制語義定義,并給出了語義識別過程的關鍵算法；其次在活動輪廓模型的基礎上,針對特征基因給出了基于活動輪廓模型的特征基因變形算法；最后結合草圖繪制及視覺認知的特點,提出了符合認知習慣的特征基因三維映射方法。 第四章：針對不同草圖繪制語義給出了相應的曲面變形算法。首先對具有曲面局部特征保持性質的拉普拉斯變形算法進行了闡述,并在此基礎上分別針對修改、添加和陰影繪制等草圖語義,分別實現(xiàn)了基于特征基因線條變動、添加和陰影效果的曲面變形方法,實現(xiàn)曲面造型。 第五章：介紹了利用本文方法實現(xiàn)的三維造型CAD系統(tǒng)的基本功能,并給出了相應的產品造型實例。 第六章：全文的總結和展望,對本文的主要研究內容和創(chuàng)新點進行總結,并指出了目前存在的主要問題及其改進思路。
[Abstract]:The animation, toy and film industries are an important part of the cultural and creative industries and are in a period of rapid development. However, with the gradual improvement of the level of development, our country is deficient in product innovation design. It has become the main bottleneck restricting the development of these industries. Combined with the national 863 project "flexible complex product rapid creative digital design method research and its application" 2009AA04Z103U, this paper has carried on the thorough research to the product innovation design important component-three-dimensional modelling design. Product 3D modeling is playing a more and more important role in product innovation design because of its full expression ability of geometric shape. However, the existing 3D modeling software is complex in operation and can not support sketching well, which limits the product design ability of enterprises. In this paper, a 3D modeling method using feature gene to express 3D model geometry feature and modify feature gene by sketch semantics is proposed to realize 3D modeling. The full text is divided into the following six chapters: The first chapter summarizes the current situation of animation, toy and film industry in China, expounds the current situation of product design and the existing problems, and introduces the research situation of related fields at home and abroad. From this, the research contents and research ideas of this paper are given. Chapter 2: the definition, extraction and optimization of characteristic gene are given. Firstly, based on the detailed analysis of the main line representation methods of 3D model, the definition of characteristic gene is given. Then, the algorithm of feature gene extraction in three-dimensional space is described. Finally, the characteristic gene was optimized by vectorization and simplification. Chapter 3: the basic methods of sketch drawing semantics, sketch driving feature gene deformation and feature gene 3D mapping are discussed. First of all, based on the induction of common sketch drawing methods, the semantic definition of sketch drawing is proposed, and the key algorithm of semantic recognition is given. Secondly, on the basis of active contour model, An algorithm of feature gene deformation based on active contour model is presented for feature genes. Finally, combining the characteristics of sketch drawing and visual cognition, a new method of feature gene mapping is proposed, which accords with cognitive habits. Chapter 4: the corresponding surface deformation algorithm is given for different sketch semantics. First of all, the Laplace deformation algorithm with the property of preserving the local feature of the surface is described, and on this basis, the line changes based on the feature gene are realized respectively for the sketch semantics such as modification, addition and shadow rendering. Add and shadow effect of surface deformation method to achieve surface modeling. Chapter 5: the basic functions of 3D modeling CAD system realized by this method are introduced, and the corresponding product modeling examples are given. Chapter VI: the summary and prospect of the full text, the main research content and innovation of this paper are summarized, and pointed out the existing main problems and their improvement ideas.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TP391.72

【參考文獻】

相關期刊論文 前4條

1 胡華強,彭維,劉垎瑋,葉修梓;基于手繪草圖的三維CAD系統(tǒng)[J];計算機工程與應用;2004年18期

2 李桂貞;論加入WTO中國玩具業(yè)的發(fā)展對策[J];廣東商學院學報;2002年04期

3 李紅;朱安亮;陳靖芯;洪仁路;;基于二維幾何特征的轎車車身三維造型設計[J];揚州大學學報(自然科學版);2009年02期

4 胡偉峰;趙江洪;趙丹華;;基于造型特征線的汽車造型意象研究[J];中國機械工程;2009年04期

相關碩士學位論文 前1條

1 廖勤;淺論線性素描的“形”與“調”[D];中央美術學院;2010年

，

本文編號：1954526