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File:Mercator by Wright stretching.svg

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Description
English: Showing how Edward Wright calculated the Mercator parallels. On an equirectangular projection calculate the parallel scale factor for one strip at mid height and use this value to widen the strip. Wright actually used 540 strips (1599) and later 5400 strips (1610) to obtain highly accurate results.
Date
Source Own work
Author Peter Mercator

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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6 August 2010

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Date/TimeThumbnailDimensionsUserComment
current10:38, 6 August 2010Thumbnail for version as of 10:38, 6 August 2010492 × 238 (108 KB)Peter Mercator{{Information |Description={{en|1=Showing how Edward Wright calculated the Mercator parallels. On an equirectangular projection calculate the parallel scale factor for one strip at mid height and use this value to widen the strip. Wright actually used 540

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