National Aeronautics and Space Administration

G.Projector — Global Map Projector

User's Guide: Projection List

Updated 2011-03-18

Following is a list of the map projections included in G.Projector as of version 1.4.6, along with alternative names. Sample images of an Earth topographical map are linked for each unique projection.

• Adams Orthembadic: See Quartic Authalic.
• Aitoff: Polyconic, equally spaced parallels.
• Aitoff-Wagner: See Wagner IX.
• Albers Equal-Area Conic: Conic.
• Apian I: See Ortelius Oval.
• Apian II: Pseudocylindric, equally spaced parallels, elliptical meridians.
• Azimuthal Equal-Area: Azimuthal, equal-area
• Azimuthal Equidistant: Azimuthal.

• Babinet: See Mollweide.
• Bacon Globular: Pseudocylindric.
• Baker Dinomic: Fusion; joins Mercator and ??? at 45°.
• Behrmann: See Cylindrical Equal-Area and apply ϕ_ts=30°.
• Boggs Eumorphic: Pseudocylindric, equal-area; Often shown interrupted.
• Bonne: Pseudoconic, equal-area.
• Braun Perspective: Cylindric.
• Braun Stereographic: Cylindric.

• Canters: See Canters Polyconic 1989 f9.
• Canters Polyconic 1989 f9: Polyconic, low-error.
• Canters Pseudocylindric 2002 f5.18: Pseudocylindric, low-error, pole line.
• Canters Pseudocylindric 2002 f5.19: Pseudocylindric, low-error, pole line.
• Canters Pseudocylindric 2002 f5.20: Pseudocylindric, low-error, pole line.
• Canters Pseudocylindric 2002 f5.23: Pseudocylindric, low-error, pointed pole.
• Cordiform: See Bonne and apply ϕ₀=90°.
• Craster Parabolic: See Parabolic.
• Cylindrical Equal-Area: Cylindric, equal-area.
• Cylindrical Equidistant: See Equirectangular.

• Denoyer Semi-Elliptical: Pseudocylindric.

• Eckert III: Pseudocylindric, equally spaced parallels, elliptical meridians, pole line.
• Eckert IV: Pseudocylindric, equal-area, elliptical meridians, pole line.
• Eckert V: Pseudocylindric, equally spaced parallels, sinusoidal meridians, pole line.
• Eckert VI: Pseudocylindric, equal-area, sinusoidal meridians, pole line.
• Eckert-Greifendorff: Polyconic, equal-area.
• Equidistant Conic: Conic, equally spaced parallels.
• Equirectangular: Cylindric, equidistant.
• Érdi-Krausz: Fusion.

• Fahey: Pseudocylindric.
• Foucaut: Pseudocylindric.
• Fournier Globular I: Polyconic.

• Gall Isographic: See Equirectangular and apply ϕ_ts=45°.
• Gall Orthographic: See Cylindrical Equal-Area and apply ϕ_ts=45°.
• Gall Stereographic: Cylindric.
• Gall-Peters: See Cylindrical Equal-Area and apply ϕ_ts=45°.
• Ginsburg VIII: Pseudocylindric.
• Goode Homolosine: Fusion; joins Sinusoidal and Mollweide at 40°44'. Often shown interrupted.
• Gott Equal-Area Elliptical: Equal-Area.
• Gott-Mugnolo Azimuthal: Azimuthal.
• Gnomonic: Azimuthal.
• Gnomonic Cubed Sphere.
• Gringorten: Equal-Area.

• Hammer: Polyconic, equal-area.
• Hammer-Aitoff: See Hammer.
• Hammer-Wagner: See Wagner VII.
• Hill Eucyclic: Polyconic, equal-area. Note: identical to Eckert IV for K=∞.
• Hölzel: Pseudocylindric.
• Homalographic: See Mollweide.
• Homolographic: See Mollweide.

• Kavraisky V: Pseudocylindric, equal-area.
• Kavraisky VI: See Wagner I.
• Kavraisky VII: Pseudocylindric, equally spaced parallels, elliptical meridians, pole line.

• Lambert Azimuthal Equal-Area: See Azimuthal Equal-Area.
• Lambert Conformal Conic: Conic.
• Lambert Cylindrical Equal-Area: See Cylindrical Equal-Area and apply ϕ_ts=0°.
• Larrivée:

• Maurer SNo. 173: See Hill Eucyclic and apply K=0.
• Mayr: Pseudocylindric, equal-area.
• McBryde P3: Fusion; joins Parabolic and M.T. Flat-Polar Parabolic at 49°20'. Often shown interrupted.
• McBryde Q3: Fusion; joins Quartic Authalic and M.T. Flat-Polar Quartic Authalic at 52°9'. Often shown interrupted
• McBryde S2: Fusion; joins Sinusoidal and Eckert VI at 49°16'. Often shown interrupted
• McBryde S3: Fusion; joins Sinusoidal and ??? at 55°51'. Often shown interrupted.
• McBryde-Thomas Flat-Polar Parabolic: Pseudocylindric, equal-area, parabolic meridians, pole line. Often shown interrupted.
• McBryde-Thomas Flat-Polar Quartic: Pseudocylindric, equal-area, quartic meridians, pole line. Often shown interrupted.
• McBryde-Thomas Flat-Polar Sinusoidal: Pseudocylindric, equal-area, sinusoidal meridians, pole line. Often shown interrupted.
• McBryde-Thomas Sine #1: Pseudocylindric.
• Mercator: Cylindric.
• Miller Cylindric: Cylindric.
• Modified Gall: Pseudocylindric.
• Mollweide: Pseudocylindric, equal-area, elliptical meridians. Often shown interrupted.

• Nell: Pseudocylindric, pole line.
• Nell-Hammer: Pseudocylindric, equal-area, pole line.

• Ortelius Oval: Pseudocylindric, equally spaced parallels, circular meridians, pole line.
• Orthographic: Azimuthal, perspective view.
• Orthophanic: See Robinson.
• Oxford Atlas: See Modified Gall.

• Parabolic: Pseudocylindric, equal-area, parabolic meridians.
• Pavlov: Cylindric.
• Peters: See Cylindrical Equal-Area and apply ϕ_ts=45°.
• Plate Carrée: See Equirectangular and apply ϕ_ts=0°.
• Putniņš P₁: Pseudocylindric, equally spaced parallels, elliptical meridians.
• Putniņš P₁': See Wagner VI.
• Putniņš P₂: Pseudocylindric, elliptical meridians.
• Putniņš P₂': See Wagner IV.
• Putniņš P₃: Pseudocylindric, equally spaced parallels, parabolic meridians.
• Putniņš P₃': Pseudocylindric, equally spaced parallels, parabolic meridians, pole line.
• Putniņš P₄: See Parabolic.
• Putniņš P₄': Pseudocylindric, equal-area, parabolic meridians, pole line.
• Putniņš P₅: Pseudocylindric.
• Putniņš P₅': Pseudocylindric, pole line.
• Putniņš P₆: Pseudocylindric, hyperbolic meridians.
• Putniņš P₆': Pseudocylindric, hyperbolic meridians, pole line.

• Quartic-Authalic: Pseudocylindric.

• Raisz Armadillo: Orthoapsidal.
• Raisz Half Ellipsoidal: Orthoapsidal
• Robinson: Pseudocylindric, pole line.

• Sanson-Flamsteed: See Sinusoidal.
• Sinusoidal: Pseudocylindric, equal-area, sinusoidal meridians. Often shown interrupted.
• Stereographic: Azimuthal.

• Times Atlas: Pseudocylindric.
• Tobler G1: Pseudocylindric, equal-area.
• TsNIIGAiK: See Ginsburg VIII.

• Urmayev Sinusoidal: Pseudocylindric, equal-area, sinusoidal meridians, pole line except for b=1 case. Note: identical to Wagner I if b=0.866; identical to Cylindrical Equal-Area for ϕ_ts=28° if b=0; compressed horizontally from classic Sinusoidal if b=1.

• Van Der Grinten I: Polyconic, circular meridians, parallels.
• Vertical Perspective: Azimuthal, perspective view. Note: identical to Orthographic if P=∞.

• Wagner I: Pseudocylindric, equal-area, sinusoidal meridians, pole line.
• Wagner II: Pseudocylindric, sinusoidal meridians, pole line.
• Wagner III: Pseudocylindric, equally spaced parallels, sinusoidal meridians, pole line.
• Wagner IV: Pseudocylindric, equal-area, elliptical meridians, pole line.
• Wagner V: Pseudocylindric, elliptical meridians, pole line.
• Wagner VI: Pseudocylindric, equally spaced parallels, elliptical meridians, pole line.
• Wagner VII: Polyconic, equal-area, pole line.
• Wagner VIII: Polyconic, pole line.
• Wagner IX: Polyconic, equally spaced parallels, pole line.
• Werenskiold I: See Putniņš P₄'.
• Werenskiold II: See Wagner I.
• Werenskiold III: See Wagner IV.
• Werner II: See Bonne and apply ϕ₀=90°.
• Winkel I: Pseudocylindric, equally spaced parallels, sinusoidal meridians, pole line.
• Winkel II: Pseudocylindric, equally spaced parallels, elliptical meridians, pole line.
• Winkel Tripel: Polyconic, equally spaced parallels, pole line.

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