File:Latitude and longitude graticule on a sphere.svg

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Description	English: Figure showing definition of latitude (φ) and longitude (λ) on a sphere. The graticule at intervals of 10 degrees is taken from Sphere-wireframe.png at Commons. Русский: Широта (φ) и долгота (λ) на сфере.
Date	5 December 2010
Source	Own work This file was derived from: Sphere wireframe 10deg 10r.svg
Author	Peter Mercator
SVG development InfoField	The source code of this SVG is invalid due to 4 errors. This W3C-invalid diagram was created with Inkscape, or with something else.

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	Date/Time	Dimensions	User	Comment
current	21:05, 5 December 2010	825 × 825 (69 KB)	Peter Mercator (talk \| contribs)	Add equator.
	20:33, 5 December 2010	825 × 825 (63 KB)	Peter Mercator (talk \| contribs)	Improve. The png files were unsatisfactory.
	18:04, 5 December 2010	520 × 520 (779 KB)	Peter Mercator (talk \| contribs)	Adjust position of centre.
	17:20, 5 December 2010	1,024 × 1,024 (779 KB)	Peter Mercator (talk \| contribs)	Failed to embed all previous image.
	17:10, 5 December 2010	1,024 × 1,024 (10 KB)	Peter Mercator (talk \| contribs)	{{Information \|Description={{en\|1=Figure showing definition of latitude and longitude on a sphere. The graticule at intervals of 10 degrees is taken from Sphere-wireframe.png‎}} \|Source={{own}} \|Author=Peter Mercator \|Date=20

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Short title	Sphere wireframe
Image title	Sphere wireframe depicted with perspective projection viewer distance from center: 10r line distancd: 10° line width: 2° axial tilt: 37.5° rotation: 7.5° base color: #22326b plotted with several adapted cubic bezier-curves The plotcurves were calculated by some fancy python code. The bezier-curve controlpoints are placed on tangents of the function-curve. They are furthermore positioned in a way to minimize the average quadratic distance between the bezier-curve and the function. This gives an accuracy, so that the deviation is in no point greater than 0.00001. about: http://commons.wikimedia.org/wiki/Image:Sphere_wireframe_10deg_10r.svg source: http://commons.wikimedia.org/ rights: GNU Free Documentation license, Creative Commons Attribution ShareAlike license
Width	825
Height	825

File:Latitude and longitude graticule on a sphere.svg

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5 December 2010

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