提出了目前的透视图不能作效果图的新论点,并从理论上进行了证明。同时也列出了改造目前透视图的几种方法,通过比较，确立了在透视图上增加带有标尺的图框线和指引线为最好形式。改造后的透视图不但可作效果图,而且也有了反求功能。同时也使透视图的形式与其他工程图样相统一。 Put forward the new perspective that the current perspective can not be used as renderings, and prove it theoretically. Also listed several ways to transform the current perspective, through the comparison, established in the perspective of the increase with the ruler of the frame lines and guidelines for the best form. After the transformation of the perspective not only for the renderings, but also has the reverse function. At the same time, the form of perspective is also integrated with other engineering drawings.