The thesis offers the idea of applying the techniques of data - administration , computer transaction , computer graphic and the interaction between computer and people in the emulational research of the construction of three - dimensional geological modeling , which also succeeds in realizing the protracting of the administration of geological data , the layout of industrial section , complex section chart , complicated isoline chart and the three - dimensional geological modeling chart , and in providing valuable references for geological research and technological support for three - dimensional and complex geological research 論文提出了運用數(shù)據(jù)庫管理技術(shù)、計算機處理技術(shù)和計算機圖視技術(shù)與人機交互技術(shù)建立三維地質(zhì)建模與仿真研究的基本技術(shù)思路較成功地實現(xiàn)了地質(zhì)數(shù)據(jù)管理、工區(qū)布置圖、復(fù)雜剖面圖、復(fù)雜等值線圖和三維地質(zhì)模型圖的顯示與繪制,為地質(zhì)科學(xué)研究提供了有價值的參考資料和三維復(fù)雜地學(xué)研究的技術(shù)支持環(huán)境。
The sea1 ring with complex section shape cafl be treated as a combined body made of several individual cy1 inders with di fferent dimensions . by app1ying the method used in the " edge prob1 em " of the fnoment theory of she11 , the deformat ion - - - radia1 disp1acement and rotation at the two edges of each individual 應(yīng)用殼體力矩理論中求解邊緣問題的方法,將密封環(huán)分解為多個等厚度、截面為單一矩形的筒體,對每一圓筒進(jìn)行分析并運用殼體力矩理論求出其兩個邊緣在外載荷作用下的邊緣變形值? ?徑向位移及轉(zhuǎn)角。
This thesis gives a brief account of the basic theories of software engineering and computer graphics , of the data structure of individual component modeling , of the design of the software structure and of the method of realizing software . meanwhile , this thesis put more emphasis on the exploration of the arithmetic of the delaunay triangle network , nurbs curve integration , the filling - in arithmetic of triple - tree , and the arithmetic based on the scan - line arithmetic and the filling - in of complex section 文章介紹了關(guān)于軟件工程學(xué)與計算機圖形學(xué)的基本理論及其各組件模型的數(shù)據(jù)結(jié)構(gòu)、軟件結(jié)構(gòu)設(shè)計與軟件實現(xiàn)的技術(shù)方法,并重點討論了基于約束條件的delaunay三角網(wǎng)格化算法、 nurbs (非均勻有理b樣條)曲面擬合、三叉樹等值線填充算法和基于掃描線的復(fù)雜剖面填充算法。