丁佳波. 采用双重投影法的椭球面日晷投影[J]. 武汉大学学报 ( 信息科学版), 2000, 25(2): 183-185.
引用本文: 丁佳波. 采用双重投影法的椭球面日晷投影[J]. 武汉大学学报 ( 信息科学版), 2000, 25(2): 183-185.
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DING Jiabo. Ellipsoidal Gnomonic Projection by Double Projection Method[J]. Geomatics and Information Science of Wuhan University, 2000, 25(2): 183-185.
Citation: DING Jiabo. Ellipsoidal Gnomonic Projection by Double Projection Method[J]. Geomatics and Information Science of Wuhan University, 2000, 25(2): 183-185.
shu

采用双重投影法的椭球面日晷投影

Ellipsoidal Gnomonic Projection by Double Projection Method

    摘要
  • 摘要: 研究了从地球椭球面描写到海图平面的采用双重投影法的日晷投影方程式,并阐明了椭球面日晷投影的 3个重要特性及其应用。

     

    Abstract: Chinese Nautical Chart requests that gnomonic projection should be used if over 60% of the area latitude is over 75°。In this paper,the gnomonic projection equation from the earth ellipsoid to the surface of projection is derived by double projection method.The three important characteristics and application of the ellipsoidal gnomonic projection are described.

     

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