图形的产生源于人类认识和改造世界的需要。人认识自然、社会和人生,要依靠视觉与思维,而视觉与思维又需要借助形象与概念。其中仅借助自然形象是不够的,必须人为地去创造。一部分创造为了表达自然形象,另一部分为了表达概念。在认识之外,人还要改造自然、社会和人生,也需要创造型象与 The emergence of graphics stems from the needs of human understanding and transformation of the world. People recognize nature, society and life, rely on vision and thinking, and vision and thinking also need to use the image and concept. Only the use of natural images is not enough, we must create artificially. Part of the creation in order to express the natural image, the other part in order to express the concept. In addition to understanding, people also transform nature, society and life, but also need to create the image and style