船體線形圖 的英文怎麼說
中文拼音 [chuántǐxiànxíngtú]
船體線形圖
英文
sheer draft-
With the development of computer technology and free - form surface modeling, body plan description on the computer has been converted into hull surface model simulation in which more information is included so that hydrostatic properties calculation can be carried out with hull information directly
隨著計算機技術與復雜曲面造型技術的發展，計算機上的船體型線的描述，目前已發展成為三維曲面乃至三維曲面實體表達。與線框圖相比，三維圖形中包含的信息更為豐富，實現了計算機上船體模型的模擬。With the methods of parametric inputting, interactive inputting and graphic inputting, this system can build the three - dimensional models of ship and modify the model from time to time. moreover, this system can transform the models into ship line drawings that include waterline drawings, transverse section drawings and vertical section drawings
在此基礎上，本文利用參數化輸入、人工互動式輸入和圖形導入等多種方法建立船舶的立體模型，並能實時編輯修改；進一步地，系統能夠由三維模型反演出型線圖，即水線圖、橫剖面圖、縱剖面圖。Abstract : this article is devoted to the development hull lines fairing, analyses some cases of this topic in home and abroad, poses some technical questions of hull lines fairing and also gives the solution including the spline curve precision fairing theory, ship data series, adept more data interactive way, and the integration of lines fairing and cad / cam, etc
文摘:本文以船體線型光順的發展方向為題，論述了國內外的發展概況，針對國內情況提出了船體線型光順的一些技術問題和解決方案，包括建立樣條曲線的精密光順理論，系列船數據庫，更多地採用數據圖形交互手段，線型光順和cad / cam實現一體化。During the past decades, some researchers, such as : bezier, kj. versprile, deboor and cox, etc. had made great progress in the filed of constrained b - spline curve and surface fitting. in this article the method of constrained b - spline curve was introduced, which is used to figure out the control vertexes. using this interpolation method we can calculate every points of a uniform b - spline
並且分析了在各種端點情況下，在重節點的情況下，如何反算控制多邊形的頂點；如何在求出控制多邊形頂點之後，插值計算b樣條擬合曲線上的每一點；並通過結合雙尾船的型線，採用visualc + +和autocad2002為平臺，分別編制了相應的軟體，對提供的型值做出繪圖處理，取得了良好的效果。In the course of practical research, it has summarized out the rational visual scene data base modeling flow, and put forward the three - dimensional real sense topographical modeling method based on simple electronic sea chart contour information and three - dimensional object producing method, including three - dimensional building on the bank, assisting navigation marks, foundations of shipping model and the processing method of light quality data
在實際研究過程中，總結出了一套科學合理的視景數據庫建模流程。並提出了基於簡易電子海圖等高線信息的三維真實感地形建模方法，以及三維物體模型生成方法，包括三維岸上建築、助航標志和船舶模型的建立，其中還介紹了燈質數據處理方法。分享友人