词条 | Wagner VI projection |
释义 |
Wagner VI is a pseudocylindrical whole Earth map projection. Like the Robinson projection, it is a compromise projection, not having any special attributes other than a pleasing, low distortion appearance. Wagner VI is equivalent to the Kavrayskiy VII horizontally elongated by a factor of {{frac||}}. This elongation results in proper preservation of shapes near the equator but slightly more distortion overall. The aspect ratio of this projection is 2:1, as formed by the ratio of the equator to the central meridian. This matches the ratio of Earth’s equator to any meridian. The Wagner VI is defined by:[1] where is the longitude and is the latitude. See also{{Portal|Atlas}}{{Commons category|Maps with Wagner VI projection}}
References1. ^{{cite book |title = Flattening the Earth: Two Thousand Years of Map Projections |first = John P. |last = Snyder |year = 1993 |isbn = 0-226-76747-7 |page = 205 |url = https://books.google.com/books?id=0UzjTJ4w9yEC&pg=PA205 }} {{Map projections}} 1 : Map projections |
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