航海模拟器中基于物理方法实现旗子的动态仿真  

Dynamic simulation of the flags in marine simulator based on physical methods

作　　者：李振宝[1] 刘春雷[1] 张秀凤[2] 戴树龙[1] 

机构地区：[1]大连海事大学航海训练与研究中心,辽宁大连116026 [2]大连海事大学航海学院,辽宁大连116026

出　　处：《大连海事大学学报》2013年第2期33-36,40,共5页Journal of Dalian Maritime University

摘　　要：为提高模拟器中旗子仿真视景的真实性,基于物理方法,考虑风向、船速和航向等因素对旗子的影响,编写C++程序实现旗子的动态模拟.根据简化的弹簧-质点模型,实时分析每个质点的受力,运用显示欧拉法计算质点的三维空间位置,使用OpenGL纹理映射技术实现旗子在不同风级下的飘扬效果.In order to improve the authenticity of the flag simula- tion in visual system of marine simulator, this paper compiles a C ＋ ＋ program to realize the dynamic simulation of the flag based on physical methods, under the conditions including the factors such as the wind direction, vessel speed and heading＇ s influence on the flags. According to the simplified mass-spring model, each particle＇ s total force is analyzed in real-time, and Explicit Euler method is used to calculate the position of each particle in the three-dimensional space. At last the OpenGL tex- ture mapping technique is used to achieve the flag simulation in different wind scale.

关 键 词：航海模拟器 旗子仿真 质点弹簧模型 显示欧拉法 

分 类 号：U666.158[交通运输工程—船舶及航道工程]