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Natural Earth

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Classification

Pseudo cylindrical

Available forms

Forward and inverse, spherical projection

Defined area

Global

Alias

natearth

Domain

2D

Input type

Geodetic coordinates

Output type

Projected coordinates

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+Natural Earth +
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proj-string: +proj=natearth

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The Natural Earth projection is intended for making world maps. A distinguishing trait +is its slightly rounded corners fashioned to emulate the spherical shape of Earth. +The meridians (except for the central meridian) bend acutely inward as they approach +the pole lines, giving the projection a hint of three-dimensionality. This bending +also suggests that the meridians converge at the poles instead of truncating at the +top and bottom edges. The distortion characteristics of the Natural Earth projection +compare favorably to other world map projections.

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Usage

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The Natural Earth projection has no special options so usage is simple. Here is +an example of an inverse projection on a sphere with a radius of 7500 m:

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$ echo 3500 -8000 | proj -I +proj=natearth +a=7500
+37d54'6.091"E  61d23'4.582"S
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Parameters

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Note

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All parameters for the projection are optional.

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++lon_0=<value>
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Longitude of projection center.

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Defaults to 0.0.

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++R=<value>
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Radius of the sphere, given in meters. If used in conjunction with ++ellps, +R takes precedence.

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See Ellipsoid size parameters for more information.

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++x_0=<value>
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False easting.

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Defaults to 0.0.

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++y_0=<value>
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False northing.

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Defaults to 0.0.

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Further reading

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  1. Wikipedia

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