【作者】 栾鹏；

【Author】 PENG Luan~(1+) 1(Department of Computer Science and Technology, Tsinghua University,Beijing 100084,China)

【机构】 清华大学 计算机科学与技术系；

【摘要】 在以往的自由手绘草图的三维建模系统中,用户均采用绘制轮廓线的方式与系统进行交互。本文提出了一个新的系统,采用新的交互方式——用骨架线取代轮廓线,作为系统的输入草图。这不仅可以减少输入线条的数量、还能大大降低绘制输入草图的难度。利用所设计的系统,用户可以快速方便的构造一系列模型,尤其是那些具有半规则结构的模型。在从骨架信息生成三维模型的过程中,系统应用了sweeping技术,同时为保证系统交互的实时性,本文还提出了一种快速自适应的sweeping方法。更多还原

【Abstract】 In this paper,we describe a new sketching system,which is the first attempt to let the user create 3D models through a 2D skeleton strokes interface,instead of the contour strokes interface adopted in many other sketching systems.Inspired by the relationship between fish-bone and fish,our system takes the skeleton strokes as 2D sketching input.The skeleton strokes are quite simple to draw and the number of strokes is greatly reduced.Using this friendly interactive system,a variety of models can be easily created,especially the ones with semi-regular features.To generate 3D models from the skeleton information,our system adopts the sweeping technique,which is both practical and convenient.A fast adaptive sweeping algorithm is also proposed to ensure real-time interaction.更多还原