PlateCarree¶
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AlbersEqualArea¶
- class cartopy.crs.AlbersEqualArea(central_longitude=0.0, central_latitude=0.0, false_easting=0.0, false_northing=0.0, standard_parallels=(20.0, 50.0), globe=None)[source]¶
An Albers Equal Area projection
This projection is conic and equal-area, and is commonly used for maps of the conterminous United States.
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AzimuthalEquidistant¶
- class cartopy.crs.AzimuthalEquidistant(central_longitude=0.0, central_latitude=0.0, false_easting=0.0, false_northing=0.0, globe=None)[source]¶
An Azimuthal Equidistant projection
This projection provides accurate angles about and distances through the central position. Other angles, distances, or areas may be distorted.
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EquidistantConic¶
- class cartopy.crs.EquidistantConic(central_longitude=0.0, central_latitude=0.0, false_easting=0.0, false_northing=0.0, standard_parallels=(20.0, 50.0), globe=None)[source]¶
An Equidistant Conic projection.
This projection is conic and equidistant, and the scale is true along all meridians and along one or two specified standard parallels.
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LambertConformal¶
- class cartopy.crs.LambertConformal(central_longitude=- 96.0, central_latitude=39.0, false_easting=0.0, false_northing=0.0, secant_latitudes=None, standard_parallels=None, globe=None, cutoff=- 30)[source]¶
A Lambert Conformal conic projection.
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LambertCylindrical¶
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Mercator¶
- class cartopy.crs.Mercator(central_longitude=0.0, min_latitude=- 80.0, max_latitude=84.0, globe=None, latitude_true_scale=None, false_easting=0.0, false_northing=0.0, scale_factor=None)[source]¶
A Mercator projection.
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Mollweide¶
- class cartopy.crs.Mollweide(central_longitude=0, globe=None, false_easting=None, false_northing=None)[source]¶
A Mollweide projection.
This projection is pseudocylindrical, and equal area. Parallels are unequally-spaced straight lines, while meridians are elliptical arcs up to semicircles on the edges. Poles are points.
It is commonly used for world maps, or interrupted with several central meridians.
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Orthographic¶
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Robinson¶
- class cartopy.crs.Robinson(central_longitude=0, globe=None, false_easting=None, false_northing=None)[source]¶
A Robinson projection.
This projection is pseudocylindrical, and a compromise that is neither equal-area nor conformal. Parallels are unequally-spaced straight lines, and meridians are curved lines of no particular form.
It is commonly used for “visually-appealing” world maps.
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Sinusoidal¶
- class cartopy.crs.Sinusoidal(central_longitude=0.0, false_easting=0.0, false_northing=0.0, globe=None)[source]¶
A Sinusoidal projection.
This projection is equal-area.
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Stereographic¶
- class cartopy.crs.Stereographic(central_latitude=0.0, central_longitude=0.0, false_easting=0.0, false_northing=0.0, true_scale_latitude=None, scale_factor=None, globe=None)[source]¶
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TransverseMercator¶
- class cartopy.crs.TransverseMercator(central_longitude=0.0, central_latitude=0.0, false_easting=0.0, false_northing=0.0, scale_factor=1.0, globe=None, approx=None)[source]¶
A Transverse Mercator projection.
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UTM¶
- class cartopy.crs.UTM(zone, southern_hemisphere=False, globe=None)[source]¶
Universal Transverse Mercator projection.
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InterruptedGoodeHomolosine¶
- class cartopy.crs.InterruptedGoodeHomolosine(central_longitude=0, globe=None, emphasis='land')[source]¶
Composite equal-area projection empahsizing either land or ocean features.
- Original Reference:
Goode, J. P., 1925: The Homolosine Projection: A new device for portraying the Earth’s surface entire. Annals of the Association of American Geographers, 15:3, 119-125, DOI: 10.1080/00045602509356949
A central_longitude value of -160 is recommended for the oceanic view.
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RotatedPole¶
- class cartopy.crs.RotatedPole(pole_longitude=0.0, pole_latitude=90.0, central_rotated_longitude=0.0, globe=None)[source]¶
A rotated latitude/longitude projected coordinate system with cylindrical topology and projected distance.
Coordinates are measured in projection metres.
The class uses proj to perform an ob_tran operation, using the pole_longitude to set a lon_0 then performing two rotations based on pole_latitude and central_rotated_longitude. This is equivalent to setting the new pole to a location defined by the pole_latitude and pole_longitude values in the GeogCRS defined by globe, then rotating this new CRS about it’s pole using the central_rotated_longitude value.
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EuroPP¶
- class cartopy.crs.EuroPP[source]¶
UTM Zone 32 projection for EuroPP domain.
Ellipsoid is International 1924, Datum is ED50.
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Geostationary¶
- class cartopy.crs.Geostationary(central_longitude=0.0, satellite_height=35785831, false_easting=0, false_northing=0, globe=None, sweep_axis='y')[source]¶
A view appropriate for satellites in Geostationary Earth orbit.
Perspective view looking directly down from above a point on the equator.
In this projection, the projected coordinates are scanning angles measured from the satellite looking directly downward, multiplied by the height of the satellite.
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NearsidePerspective¶
- class cartopy.crs.NearsidePerspective(central_longitude=0.0, central_latitude=0.0, satellite_height=35785831, false_easting=0, false_northing=0, globe=None)[source]¶
Perspective view looking directly down from above a point on the globe.
In this projection, the projected coordinates are x and y measured from the origin of a plane tangent to the Earth directly below the perspective point (e.g. a satellite).
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EckertI¶
- class cartopy.crs.EckertI(central_longitude=0, false_easting=None, false_northing=None, globe=None)[source]¶
An Eckert I projection.
This projection is pseudocylindrical, but not equal-area. Both meridians and parallels are straight lines. Its equal-area pair is
EckertII
.
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EckertII¶
- class cartopy.crs.EckertII(central_longitude=0, false_easting=None, false_northing=None, globe=None)[source]¶
An Eckert II projection.
This projection is pseudocylindrical, and equal-area. Both meridians and parallels are straight lines. Its non-equal-area pair with equally-spaced parallels is
EckertI
.
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EckertIII¶
- class cartopy.crs.EckertIII(central_longitude=0, false_easting=None, false_northing=None, globe=None)[source]¶
An Eckert III projection.
This projection is pseudocylindrical, but not equal-area. Parallels are equally-spaced straight lines, while meridians are elliptical arcs up to semicircles on the edges. Its equal-area pair is
EckertIV
.
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EckertIV¶
- class cartopy.crs.EckertIV(central_longitude=0, false_easting=None, false_northing=None, globe=None)[source]¶
An Eckert IV projection.
This projection is pseudocylindrical, and equal-area. Parallels are unequally-spaced straight lines, while meridians are elliptical arcs up to semicircles on the edges. Its non-equal-area pair with equally-spaced parallels is
EckertIII
.It is commonly used for world maps.
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EckertV¶
- class cartopy.crs.EckertV(central_longitude=0, false_easting=None, false_northing=None, globe=None)[source]¶
An Eckert V projection.
This projection is pseudocylindrical, but not equal-area. Parallels are equally-spaced straight lines, while meridians are sinusoidal arcs. Its equal-area pair is
EckertVI
.
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EckertVI¶
- class cartopy.crs.EckertVI(central_longitude=0, false_easting=None, false_northing=None, globe=None)[source]¶
An Eckert VI projection.
This projection is pseudocylindrical, and equal-area. Parallels are unequally-spaced straight lines, while meridians are sinusoidal arcs. Its non-equal-area pair with equally-spaced parallels is
EckertV
.It is commonly used for world maps.
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EqualEarth¶
- class cartopy.crs.EqualEarth(central_longitude=0, false_easting=None, false_northing=None, globe=None)[source]¶
An Equal Earth projection.
This projection is pseudocylindrical, and equal area. Parallels are unequally-spaced straight lines, while meridians are equally-spaced arcs.
It is intended for world maps.
Note
To use this projection, you must be using Proj 5.2.0 or newer.
References
Bojan Šavrič, Tom Patterson & Bernhard Jenny (2018) The Equal Earth map projection, International Journal of Geographical Information Science, DOI: 10.1080/13658816.2018.1504949
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Gnomonic¶
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LambertAzimuthalEqualArea¶
- class cartopy.crs.LambertAzimuthalEqualArea(central_longitude=0.0, central_latitude=0.0, false_easting=0.0, false_northing=0.0, globe=None)[source]¶
A Lambert Azimuthal Equal-Area projection.
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NorthPolarStereo¶
- class cartopy.crs.NorthPolarStereo(central_longitude=0.0, true_scale_latitude=None, globe=None)[source]¶
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