正投影
正投影,又称正射投影、正视图投影等,是地图学中的一种地图投影方式。与球极平面投影和心射切面投影相似,正投影是一种透视投影,即将球面射向切空间或切断平面。本投影绘制成一个球体的半球面,类似在外层空间的角度,外层是个大圆。正投影呈现的外形和范围是变形了的,在球体边缘尤为严重[1][2]。
参考资料
- Snyder, J. P. . Washington, D.C.: US Government Printing Office. 1987: 145–153.
- Snyder, John P. (1993). Flattening the Earth: Two Thousand Years of Map Projections pp. 16–18. Chicago and London: The University of Chicago Press. ISBN 0-226-76746-9.
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