3D visualization application of ocean temperature field
首发时间:2020-01-17
Abstract:Sea water temperature is a physical quantity that represents the thermal state of the ocean. Depending on the state of the ocean thermal budget and time, the ocean temperature field will periodically or irregularly change with time. Current research on ocean temperature fields is mainly focused on marine fishing, aquaculture, etc., or research on specific sampling and reconstruction methods of sea temperature. From the perspective of the practical application of underwater vehicle equipment, this paper studies the display method of ocean temperature field data. Compared with the current device that displays the temperature field information change pattern by curve values, the three-dimensional visualization method can more intuitively and effectively describe and describe the current state of the temperature field environment in the sea area, and improve the commander's understanding and application of the temperature field as a whole Making tactical decisions provides reliable technical support, so it has broad prospects in practical engineering equipment applications. This paper analyzes the seawater temperature field data characteristics and sampling methods, uses ray projection volume rendering method to realize three-dimensional display of the ocean temperature field, and encodes data classification, coordinate conversion, and resampling specific processes.
keywords: ocean density field ray projection algorithm 3D visualization OpenGL
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海洋温度场的三维可视化应用实现
摘要:海水温度是表现海洋热力状态的一个物理量,受海洋热收支状况及时间影响,海洋温度场会出现随时间周期性变化或不规则变化的现象。当前对海洋温度场的研究主要集中在海上捕捞、水产养殖等方面,或对海水温度具体采样及重构方法进行研究。本文从水下航行器设备实际应用角度出发,对海洋温度场数据显示方式进行研究。相比当前设备通过曲线数值显示温度场信息变化规律的方式,三维可视化方法能够更直观、有效地刻画和描述当前海域温度场环境现状,提高作战指挥人员对温度场整体的理解和应用,为其制定战术决策提供可靠的技术支持,因此在实际工程装备应用中具有广阔前景。本文通过对海水温度场数据特征及采样方式的分析,采用光线投射的体绘制方法实现海洋温度场三维显示,并对数据分类、坐标转换、重采样等具体过程进行编码实现。
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