因为作为油画传媒的中国早期留学生，学习的就是直接画法。

Being the media of the oil paintings, the early Chinese foreign students learned the Alia Prima technique.

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基于此，采用一种内力图的简便画法，避免复杂的计算，通过观察直接画出。

Based on this, we consider a map of the internal forces simple painting and avoid complex calculations, through direct observation of paint.

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总结了根据外力的符号直接绘制内力图的简单实用的绘制方法，这种画法简化了绘制过程，提高了绘图速度；

With the summary of simplified and practical designing approaches to draw internal force figures in accordance with notations in internal forces, which simplified drawing process and improved speed.

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