| OpenGL与Windows坐标相互转换的实现 |
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| 引用本文： | 王瑞永,乔江,袁清.OpenGL与Windows坐标相互转换的实现[J].地理空间信息,2011(4):78-80. |
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| 作者姓名： | 王瑞永 乔江 袁清 |
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| 作者单位： | 中国农业科学院草原研究所,内蒙古呼和浩特,010010 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金资助项目 |
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| 摘 要： | 基于OpenGL图形库进行开发三维交互系统时,OpenGL世界坐标和Windows窗口坐标转换是不可避免要面临的问题。众所周知,Windows坐标是二维平面坐标,而OpenGL世界坐标是三维右手笛卡尔坐标系。为解决项目开发中这一问题,首先分析了2种坐标系及其转换过程,然后根据三维实体在Windows上显示的原理建立坐标...
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| 关 键 词： | Windows坐标 世界坐标 坐标转换 OpenGL |
Implementation of Coordinate Transformation between OpenGL and Windows |
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| WANG Ruiyong.Implementation of Coordinate Transformation between OpenGL and Windows[J].Geospatial Information,2011(4):78-80. |
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| Authors: | WANG Ruiyong |
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| Institution: | WANG Ruiyong |
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| Abstract: | Using OpenGL graphic library to develop 3D-interactive system,the transformation between Windows coordinates and OpenGL world coordinates is inevitable.As is known,Windows coordinates is a 2D coordinates system,but world coordinates is a right-handed 3D coordinate system.To solve this problem in project development,an analysis of these two kinds of coordinate system and the transformation process between them was made,then established the principle of coordinate transformation according to the rule three-di... |
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| Keywords: | Windows coordinates world coordinates coordinate transformation OpenGL |
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