## Summary and Guide to Projections

Use projections to display latitude-longitude coordinate data on maps. Choose a projection method by considering these criteria:

These tables show the map projections you can use with map projection structures and map axes. For more information about map projection structures, see `defaultm`. For more information about map axes, see `axesm`.

Note

Most projection IDs are also functions on the MATLAB® search path. These functions are only used in the implementation of functions such as `defaultm` and `axesm`, and therefore their syntaxes are not documented.

### Cylindrical Projections

Projection Name

Projection ID

Equal-AreaConformalEquidistantSpecial Features

Example

Balthasart

`balthsrt`

x

x Behrmann

`behrmann`

x

x Bolshoi Sovietskii Atlas Mira

`bsam`

x

x

x Braun Perspective

`braun`

x

x

x Cassini

`cassini`

x

x Cassini – Standard

`cassinistd`

x

x

x Central

`ccylin`

x

x

x Equal-Area Cylindrical

`eqacylin`

x

x Equidistant Cylindrical

`eqdcylin`

x

x Gall Isographic

`giso`

x

x Gall Orthographic

`gortho`

x

x Gall Stereographic

`gstereo`

x

x

x Lambert Equal-Area Cylindrical

`lambcyln`

x

x Mercator

`mercator`

x

x

Rhumb lines are straight. Miller

`miller`

x

x

x Plate Carrée

`pcarree`

x

x Transverse Mercator

`tranmerc`

x

x Trystan Edwards

`trystan`

x

x Universal Transverse Mercator (UTM)

`utm`

x

x

Wetch

`wetch`

x

x

x ### Pseudocylindrical Projections

Projection Name

Projection ID

Equal-Area

Conformal

Equidistant

Special Features

Example

Apianus II

`apianus`

x

x

x Collignon

`collig`

x

x Craster Parabolic

`craster`

x

x Eckert I

`eckert1`

x

x

x Eckert II

`eckert2`

x

x Eckert III

`eckert3`

x

x

x Eckert IV

`eckert4`

x

x Eckert V

`eckert5`

x

x

x Eckert VI

`eckert6`

x

x Fournier

`fournier`

x

x Goode Homolosine

`goode`

x

x Hatano Asymmetrical Equal-Area

`hatano`

x

x Kavraisky V

`kavrsky5`

x

x Kavraisky VI

`kavrsky6`

x

x Loximuthal

`loximuth`

x

x

x

Rhumb lines from the central point are straight, true to scale, and correct in azimuth. McBryde-Thomas Flat-Polar Parabolic

`flatplrp`

x

x McBryde-Thomas Flat-Polar Quartic

`flatplrq`

x

x McBryde-Thomas Flat-Polar Sinusoidal

`flatplrs`

x

x Mollweide

`mollweid`

x

x Putnins P5

`putnins5`

x

x

x Quartic Authalic

`quartic`

x

x Robinson

`robinson`

x

x

x Sinusoidal

`sinusoid`

x

x Tissot Modified Sinusoidal

`modsine`

x

x Wagner IV

`wagner4`

x

x Winkel 1

`winkel`

x

x

x ### Conic Projections

Projection Name

Projection ID

Equal-Area

Conformal

Equidistant

Special Features

Example

Albers Equal-Area Conic

`eqaconic`

x

x Albers Equal-Area Conic – Standard

`eqaconicstd`

x

x Equidistant Conic

`eqdconic`

x

x Equidistant Conic – Standard

`eqdconicstd`

x

x Lambert Conformal Conic

`lambert`

x

x Lambert Conformal Conic – Standard

`lambertstd`

x

x Murdoch I Conic

`murdoch1`

x

x

The total area is correct. Murdoch III Minimum Error Conic

`murdoch3`

x

x

The total area is correct. ### Pseudoconic Projections

Projection Name

Projection ID

Equal-Area

Conformal

Equidistant

Special Features

Example

Bonne

`bonne`

x

x Werner

`werner`

x

x ### Polyconic Projections

Projection Name

Projection ID

Equal-Area

Conformal

Equidistant

Special Features

Example

Polyconic

`polycon`

x

x

x Polyconic – Standard

`polyconstd`

x

x

x Van Der Grinten I

`vgrint1`

x

x

x ### Azimuthal Projections

Projection Name

Projection ID

Equal-Area

Conformal

Equidistant

Special Features

Example

Breusing Harmonic Mean

`breusing`

x

x

x Equidistant Azimuthal

`eqdazim`

x

x Gnomonic

`gnomonic`

x

x

x

Great circles appear as straight lines. Lambert Azimuthal Equal-Area

`eqaazim`

x

x Orthographic

`ortho`

x

x

x Stereographic

`stereo`

x

x

Great and small circles appear as either straight lines or circular arcs. Universal Polar Stereographic (UPS)

`ups`

x

x

Great and small circles appear as either straight lines or circular arcs.

Vertical Perspective Azimuthal

`vperspec`

x

x

x ### Pseudoazimuthal Projections

Projection Name

Projection ID

Equal-Area

Conformal

Equidistant

Special Features

Example

Wiechel

`wiechel`

x

x ### Modified Azimuthal Projections

Projection Name

Projection ID

Equal-Area

Conformal

Equidistant

Special Features

Example

Aitoff

`aitoff`

x

x

x Briesemeister

`bries`

x

x Hammer

`hammer`

x

x 