Editing Map projection (section)

===Pseudocylindrical===
{{See also|List of map projections#pseudocylindrical}}
[[File:Usgs map sinousidal equal area.PNG|thumb|upright=2|A sinusoidal projection shows relative sizes accurately, but grossly distorts shapes. Distortion can be reduced by "[[Interrupted projection|interrupting]]" the map.]]

Pseudocylindrical projections represent the ''central'' [[meridian (geography)|meridian]] as a straight line segment. Other meridians are longer than the central meridian and bow outward, away from the central meridian. Pseudocylindrical projections map [[circle of latitude|parallels]] as straight lines. Along parallels, each point from the surface is mapped at a distance from the central meridian that is proportional to its difference in longitude from the central meridian. Therefore, meridians are equally spaced along a given parallel. On a pseudocylindrical map, any point further from the equator than some other point has a higher latitude than the other point, preserving north-south relationships. This trait is useful when illustrating phenomena that depend on latitude, such as climate. Examples of pseudocylindrical projections include:
* [[Sinusoidal projection|Sinusoidal]], which was the first pseudocylindrical projection developed. On the map, as in reality, the length of each parallel is proportional to the cosine of the latitude.<ref>{{MathWorld | urlname= SinusoidalProjection | title= Sinusoidal Projection}}</ref> The area of any region is true.
* [[Collignon projection]], which in its most common forms represents each meridian as two straight line segments, one from each pole to the equator.
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* [[Tobler hyperelliptical projection|Tobler hyperelliptical]]
: [[File:Tobler hyperelliptical projection SW.jpg|200px]]
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* [[Mollweide projection|Mollweide]]
: [[File:Mollweide projection SW.jpg|200px]]
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* [[Goode homolosine projection|Goode homolosine]]
: [[File:Goode homolosine projection SW.jpg|200px]]
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* [[Eckert IV projection|Eckert IV]]
: [[File:Ecker IV projection SW.jpg|200px]]
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* [[Eckert VI projection|Eckert VI]]
: [[File:Ecker VI projection SW.jpg|200px]]
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* [[Kavrayskiy VII projection|Kavrayskiy VII]]
: [[File:Kavraiskiy VII projection SW.jpg|200px]]
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