并对相应的基于笔触语义分层的三维草图原型系统做了描述，对相关技术和算法的可行性进行了验证。
Based on the semantic characteristics, the prototype system supported 3D online sketch technique is built, and the related algorithms are verified.
将基于笔划的手势交互技术引入到三维草图设计中，由简单的笔划命令取代各种复杂的交互操作命令。
Specifically following contributions have been made:1. Through the application of the gesture-based interaction techniques, the complex interaction operations are replaced by simple strokes.
由于大部分公司使用计算机创建规格说明书、二维和三维草图以及财务管理等，所以需要具备相应的计算机能力。
Computer literacy is also required as most firms use computers for creating specifications, two - and three-dimensional drafting, and financial management.
阿尔达·比多的外形被绘制成概念草图后，工作人员雕刻了一个简易模型，以三维的形式精确描绘这个角色，设计他的涂装。
After the look of Aldar Beedo was established in concept sketches, a maquette was sculpted to properly depict the character in three-dimensions and develop his paint-scheme.
该文研究并实现了一种新型的基于笔的手绘草图三维CAD系统。
In this paper, a freehand sketch-based three-dimensional CAD system is studied and implemented.
研究一种基于手绘草图进行三维建模的方法。
In this paper we have studied a three-dimensional modelling approach based on freehand sketch.
我决定忘记了三维模型，然后回到一个2d草图。
I decide to forget about the 3d model and go back to a 2d sketch.
要获得此类专业的证书，学生必须能够利用电脑设计系统绘制二维和三维的机械产品草图。
In order to receive a certificate in this field, the student must learn how to create two-dimensional and three-dimensional drawings of mechanical objects using computer design equipment.
介绍筹议手绘草图技巧，二维传统效果图，三维数码建模和效果图。
Introduction and discussion about sketching techniques, 2d traditional rendering, and 3d digital modeling and rendering.
介绍筹议手绘草图技巧，二维传统效果图，三维数码建模和效果图。
Introduction and discussion about sketching techniques, 2d traditional rendering, and 3d digital modeling and rendering.
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