What the article discusses is to design a computer plotting system to solve the problems how to promptly and precisely study out the above mentioned location and plotting problems . considering the affects of all kinds of factors and leaving enough room , to scan the safety course in all directions , make forecast about the relative position of the ship and typhoon , the tendency of their movements , render a vital group of data and a direct diagram which the captain cares about , help the users to make the scientific and resonable decisions , to take correct and effective measures to keep away from and withstand typhoon early and resolutely , for all the practical problems in decision - making to keep away from typhoon 本文所討論的就是為迅速和較為精確地解決以上點繪和相對運動標(biāo)繪的問題,在考慮了各種因素的影響并留有充分余地的情況下,在全方位范圍內(nèi)搜索安全航向,對本船與臺風(fēng)的相對位置以及兩者之間的動態(tài)發(fā)展態(tài)勢作出預(yù)報,并給出船長最關(guān)心的、對其作出避臺決策至關(guān)重要的一組數(shù)據(jù)和直觀圖形,幫助使用者及早制訂科學(xué)合理的避抗預(yù)案,及時果斷地采取正確有效的避抗措施,解決避臺決策的實際問題而設(shè)計的一個計算機標(biāo)繪系統(tǒng)。