A basic subroutine for drawing is compiled with programming language, and some of subroutines with different functions are composed to form a drawing basic software.

采用程序设计语言编写了绘图基本子程序，并把具有不同功能的子程序组合成一个绘图基本软件。

youdao

Sketch is drawing the earliest form of human history, is the oldest language of art. Near subtle cause the majority, drawing associations will take you painting soul.

素描是人类历史上最早出现的绘画形式，也是最古老的艺术语言。近精微致广大，素描社团将带你体验绘画艺术的灵魂。

youdao