在codev中關于棱鏡使用的介紹中，the “face length” of the prism is the full width of the reference face of the prism. The reference face depends on the particular prism design—either experiment with sizes (making frequent use of Undo), or take a look at the comments in the source code for the macro (found in the CV_MACRO: directory).我對這里的關于這個face length不太理解 那位高手能用通俗易懂的話給我解釋下。送人玫瑰，手有余香！！謝謝你！
