素描产生于西欧,是西画的一部分,是造型艺术中的一种样式,其用线条单纯描绘,顾名思义为“素的绘画”。素描作为艺术是一种情感外化的样式,因方便快捷的表现方式而深受人们的喜爱。因此素描先于设计,这是它自身的特性和工具材料所决定的。就素描的具体分类而言,大致可以分为两类。第一类素描具有独立的艺术意义;第二种则是在绘画、建筑和其他类型的设计过程中具有辅助的意义——草图。在第二种情况下,素描构成了 Sketch originated in Western Europe, is part of the Western painting is a style of art, which uses a simple line drawing, as the name suggests is “prime painting ”. Sketch as an art is a feeling of external style, because of convenient and efficient way of expression and by the people’s favorite. Therefore, the sketch precedes the design, which is determined by its own characteristics and tools. In terms of the specific categories of sketches, there are two broad categories. The first type of sketches has an independent artistic meaning; the second type has a secondary meaning in drawing, architecture, and other types of design-sketches. In the second case, the sketch is made up