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2. en.wikipedia.org › wiki › Eckert_IV_projectionEckert IV projection - Wikipedia

   en.wikipedia.org › wiki › Eckert_IV_projection

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   The Eckert IV projection is an equal-area pseudocylindrical map projection. The length of the polar lines is half that of the equator, and lines of longitude are semiellipses, or portions of ellipses. It was first described by Max Eckert in 1906 as one of a series of three pairs of pseudocylindrical projections.

3. pro.arcgis.com › en › pro-appEckert IV—ArcGIS Pro | Documentation - Esri

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   Eckert IV is an equal-area pseudocylindrical map projection for world maps. The lateral meridians are semicircles, which give the projection a rounded shape and smooth corners where the lateral meridians meet the pole lines.

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   What is Eckert IV projection in ArcGIS?

   • The projection was introduced by Max Eckert in 1906. It is available in ArcGIS Pro 1.0 and later and in ArcGIS Desktop 8.0 and later. Eckert IV equal-area map projection centered on Greenwich is shown. The subsections below describe the Eckert IV projection properties. Eckert IV is a pseudocylindric projection.

   Eckert IV—ArcGIS Pro | Documentation - Esri

   pro.arcgis.com/en/pro-app/latest/help/mapping/properties/eckert-iv.htm

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   What is Eckert IV projection?

   • The Eckert IV projection is an equal-area pseudocylindrical map projection. The length of the polar lines is half that of the equator, and lines of longitude are semiellipses, or portions of ellipses. It was first described by Max Eckert in 1906 as one of a series of three pairs of pseudocylindrical projections.

   Eckert IV projection - Wikipedia

   en.wikipedia.org/wiki/Eckert_IV_projection

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   What is Eckert IV?

   • Eckert IV is an equal-area pseudocylindrical map projection for world maps. The lateral meridians are semicircles, which give the projection a rounded shape and smooth corners where the lateral meridians meet the pole lines. This projection is commonly used for thematic and other world maps requiring accurate areas.

   Eckert IV—ArcGIS Pro | Documentation - Esri

   pro.arcgis.com/en/pro-app/latest/help/mapping/properties/eckert-iv.htm

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5. geophysics.eas.gatech.edu › classes › Intro_GMT6.4.5 Eckert IV and VI Projection (-Jk -JK)

   geophysics.eas.gatech.edu › classes › Intro_GMT

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   The scale is true along latitudes 40 30' (IV) and 49 16' (VI). Their main use is in thematic world maps. To select Eckert IV you must use -JKf ( f for ``four'') while Eckert VI is selected with -JKs ( s for ``six''). If no modifier is given it defaults to Eckert VI. In addition, you must enter.

6. wiki.gis.com › wiki › indexEckert IV projection - GIS Wiki | The GIS Encyclopedia

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   The Eckert IV projection is pseudo-cylindrical 'flat-polar" world map projection developed by Max Eckert, a German professor, and published in 1906 as one of 6 world map projections.

7. www.mathworks.com › help › mapEckert IV Projection - MATLAB - MathWorks

   www.mathworks.com › help › map

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   Features. This is an equal-area projection. Scale is true along the 40º30' parallels and is constant along any parallel and between any pair of parallels equidistant from the Equator. It is free of distortion only at the two points where the 40º30' parallels intersect the central meridian. This projection is not conformal or equidistant. Parallels.

8. map-projections.net › single-view › eckert-4Eckert IV: Compare Map Projections

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   Equal-area. Other Names. —. Remarks. —. Jump to different depiction of this projection: Specified in [square brackets]: Actual size of the projection (minus the black or white background). When marked with [≈], sizes with and without background are approx. the same.

9. proj.org › operations › projectionsEckert IV — PROJ 9.4.0 documentation

   proj.org › operations › projections

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   5 days ago · Note. All parameters are optional for the Eckert IV projection. Central meridian/longitude of natural origin, longitude of origin or longitude of false origin (naming and meaning depend on the projection method). Defaults to 0.0. The default convention is to interpret this value as decimal degrees.