projections.md

myst	substitutions lon0 lat0 lon1 lat1 lat2 lonp latp lon{sub}`0` lat{sub}`0` lon{sub}`1` lat{sub}`1` lat{sub}`2` lon{sub}`p` lat{sub}`p`

GMT Map Projections

The table below shows the projection codes for the 32 GMT map projections:

PyGMT Projection Argument	Projection Name
A{{ lon0 }}/{{ lat0 }}[/horizon]/width
B{{ lon0 }}/{{ lat0 }}/{{ lat1 }}/{{ lat2 }}/width
C{{ lon0 }}/{{ lat0 }}/width
Cyl_stere/[{{ lon0 }}/[{{ lat0 }}/]]width
D{{ lon0 }}/{{ lat0 }}/{{ lat1 }}/{{ lat2 }}/width
E{{ lon0 }}/{{ lat0 }}[/horizon]/width
F{{ lon0 }}/{{ lat0 }}[/horizon]/width
G{{ lon0 }}/{{ lat0 }}[/horizon]/width
G{{ lon0 }}/{{ lat0 }}/width[+aazimuth][+ttilt][+vvwidth/vheight][+wtwist][+zaltitude]
H[{{ lon0 }}/]width
I[{{ lon0 }}/]width
J[{{ lon0 }}/]width
Kf[{{ lon0 }}/]width
Ks[{{ lon0 }}/]width
L{{ lon0 }}/{{ lat0 }}/{{ lat1 }}/{{ lat2 }}/width
M[{{ lon0 }}/[{{ lat0 }}/]]width
N[{{ lon0 }}/]width
Oa{{ lon0 }}/{{ lat0 }}/azimuth/width[+v]	Oblique Mercator projection: 1. origin and azimuth
Ob{{ lon0 }}/{{ lat0 }}/{{ lon1 }}/{{ lat1 }}/width[+v]	Oblique Mercator projection: 2. two points
Oc{{ lon0 }}/{{ lat0 }}/{{ lonp }}/{{ latp }}/width[+v]	Oblique Mercator projection: 3. origin and projection pole
Pwidth[+a][+f[e|p|radius]][+roffset][+torigin][+z[p|radius]]	Polar azimuthal ({math}\theta, r) or cylindrical
Poly/[{{ lon0 }}/[{{ lat0 }}/]]width
Q[{{ lon0 }}/[{{ lat0 }}/]]width
R[{{ lon0 }}/]width
S{{ lon0 }}/{{ lat0 }}[/horizon]/width
T{{ lon0 }}[/{{ lat0 }}]/width
Uzone/width
V[{{ lon0 }}/]width
W[{{ lon0 }}/]width
Xwidth[l|pexp|T|t][/height[l|pexp|T|t]][d]	Cartesian linear, logarithmic, power, and time
Y{{ lon0 }}/{{ lat0 }}/width
+proj=spilhaus+width=width