One of the major reasons for this lies in the narrative strategy employed by the novelist,namely a combination of the socio-culturalization of sex with the cavalier perspective in the description of sex,rendering it a naturally integrated part of the holistic narrative framework of the novel.

The cavalier perspective is thought to be the synonym of perspective in the traditional Chinese painting.

Accomplishments of engineering drawing in ancient China,either the enunciation of perspective by Zong Bin of the 4th-Sth century, or the systematic conclusion by Guo Xi and Shen Kuo of the 11th-12th century,reflects the historical progress from focus perspective to cavalier perspective,which contributed to the field of e.

In terms of perspective,they have the unique treatment,which follow certain basic rules and regulations,at the same time are not formalistic,namely,the painters are in a position to break through visual realms of focus perspective and draw at will so as to make the paintings more vivid and global.

The author considers that the cavalier perspective,which is put forth under the influence of Western focus perspective,is a conception extended from Western perspective.

Accomplishments of engineering drawing in ancient China,either the enunciation of perspective by Zong Bin of the 4th-Sth century, or the systematic conclusion by Guo Xi and Shen Kuo of the 11th-12th century,reflects the historical progress from focus perspective to cavalier perspective,which contributed to the field of e.