AutoLISP Based Automatic Recognizing Method for Ship Hull Lines
This article mainly introduces two methods for automatic recognition of hull lines which are free identification and designated position identification.AutoLISP language is used to directly read the 2D coordinates of all control nodes when drawing a 2D profile,and to obtain the 2D coordinates of interpolation points at specified positions on the 2D profile,then convert these node coordinates into 3D values using the actual position relationship between the profile and the specified position on the ship's hull.The efficiency and accuracy of using this method to obtain the three-dimensional values of hull lines with numerical examples,as well as the feasibility of importing Solidworks software for three-dimensional modeling to generate ship surface are verified.This study provides a reference for the transformation of ship design from two-dimensional to three-dimensional.
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