1·Meanwhile we get the universal parametric model for freehand sketch.
同时，建立了手绘草图的统一的参数化模型。
2·In this paper we have studied a three-dimensional modelling approach based on freehand sketch.
研究一种基于手绘草图进行三维建模的方法。
3·In this paper, a freehand sketch-based three-dimensional CAD system is studied and implemented.
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。
4·The freehand sketch recognition system is developed in the above method and confirms our algorithms to be serviceable and extensible.
本文的手绘电路图在线识别算法得到了实验验证，该算法针对性强、且易于扩充。
5·It resembles the freehand traditional Chinese painting and also shows the delicacy of the linear sketch.
既似国画大写意之手法，又似工笔素描之纤细。
6·To facilitate designers to design 3d face shapes conveniently, this paper presents a method of 3d face modeling using freehand portrait sketch.
为方便用户进行3维人脸形状设计，提出一种基于手绘轮廓的3维人脸建模方法。