| 摘要: |
| 提出了一种基于特征线素的轻量级三维建筑交互建模方法,称为Fe-Wires 方法.该方法是一种基于形状文法的过程式建模方法,通过间接地输入和操纵建筑对象的特征线条来重构模型,克服了原有基于规则的建模方法交互能力弱的缺点.为了便于对复杂建筑对象进行交互调整,给出了基于轴向弹性约束的整体形变模型.区别于传统非线性约束求解方法,该方法只需求解一个二次凸规划问题,具有很高的求解效率.实验结果表明,该方法适用于建筑室内外交互建模的实际应用. |
| 关键词: 三维建筑建模 形状文法 特征线素 形变编辑 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.61070073 (国家自然科学基金); the National Key
Technology R&D Program of China under Grant No.2007BAH11B00 (国家科技支撑计划项目); the Zhejiang Provincial Natural Science
Foundation of China under Grant No.Y1080669 (浙江省自然科学基金) |
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| Fe-Wires: An Approach of Expressive 3D Architecture Modeling |
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WU Kang-Le, ZHANG Hong-Xin, LI Yuan-Shu, QIAN Bo-Lei
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State Key Laboratory of CAD&CG, Zhejiang University, Hangzhou 310058, China
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| Abstract: |
| In this paper, a light weight architecture modeling approach based on feature wires is proposed, which is called Fe-Wires. The approach is a procedural modeling method based on shape grammar. In the method, 3D models are reconstructed based on inputting and manipulating feature wires of architecture objects to overcome the interaction weakness of original rule-based approaches. To interactively tuning complex architecture models, we present a global deformation model which uses axis-aligned spring constraints. Different from previous nonlinear optimization methods, our approach only need to solve a convex quadratic problem which can be efficiently solved in real time. The presented experiments show that our method can be applied on the real applications for interactive modeling inner and outer part of buildings. |
| Key words: 3D architecture modeling shape grammar feature wires deformable editing |
