Transverse Mercator

The transverse Mercator was invented by Johann Heinrich Lambert in 1772. In this projection the cylinder touches a meridian along which there is no distortion. The distortion increases away from the central meridian and goes to infinity at 90° from center. The central meridian, each meridian 90° away from the center, and equator are straight lines; other parallels and meridians are complex curves.

tlon0[/lat0]/scale or Tlon0[/lat0]/width

The projection is set with t or T. The central meridian is set by lon0, the latitude of the origin is set by the optional lat0, and the figure size is set with scale or width.

import pygmt

fig = pygmt.Figure()
fig.coast(
    region=[20, 50, 30, 45],
    projection="T35/12c",
    land="lightbrown",
    water="seashell",
    shorelines="thinnest",
    frame="afg",
)
fig.show()