| 电子海图快速渲染方式研究 |
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| 引用本文： | 邱晓淯,严庆新,陈立家.电子海图快速渲染方式研究[J].交通与计算机,2010,28(6):25-29. |
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| 作者姓名： | 邱晓淯 严庆新 陈立家 |
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| 作者单位： | 武汉理工大学航海学院,武汉430063 |
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| 摘 要： | 大数据量的物标快速渲染是电子海图显示中的关键技术之一,图形显示速度是衡量电子海图显示信息系统（electronic chart display and information system,ECDIS）性能的一个基本方面。通过分析电子海图的显示步骤,分别从数据结构、屏幕坐标系和Open GL内建机制3个角度给出图形快速渲染方法。在Ubuntu10.04 OS（operating system）环境中测试渲染方式的有效性,验证了这3种措施可以满足电子海图显示标准,并说明渲染方式在多个平台上的适用性。
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| 关 键 词： | 电子海图 快速渲染 数据结构 屏幕坐标系 Open GL |
Fast Rendering Methods for Electronic Navigational Chart |
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| QIU Xiaoyu,YAN Qingxin,CHEN Lijia.Fast Rendering Methods for Electronic Navigational Chart[J].Computer and Communications,2010,28(6):25-29. |
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| Authors: | QIU Xiaoyu YAN Qingxin CHEN Lijia |
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| Institution: | (Navigation Department,Wuhan University of Technology,Wuhan 430063,China) |
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| Abstract: | Fast rendering is a key technology in ENC（Electronic navigational chart） displaying,and the ECDIS performance should always be measured in terms of its display and redrawing rate.Three analyses related to ENC display flow,which are data structure,display coordinate system and OpenGL build-in mechanism,are carried out.The above analyses are tested in the Ubuntu10.04 OS and their efficiency is verified.The test results prove that the proposed solutions can meet the ENC display standard and user needs,and they are also able to run on many OS platforms. |
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| Keywords: | ENC fast rendering data structure display coordinate system OpenGL |
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