Cartesian linear

Xwidth[/height] or xx-scale[/y-scale]

Give the width of the figure and the optional height. The lower-case version x is similar to X but expects an x-scale and an optional y-scale.

The Cartesian linear projection is primarily designed for regular floating point data. To plot geographical data in a linear projection, see the upstream GMT documentation Geographic coordinates. To make the linear plot using calendar date/time as input coordinates, see the tutorial Plotting datetime charts. GMT documentation Calendar time coordinates.

import pygmt

fig = pygmt.Figure()
# The region parameter is specified as x_min, x_max, y_min, y_max
fig.basemap(region=[0, 10, 0, 50], projection="X15c/10c", frame=["afg", "+gbisque"])
fig.plot(x=[3, 9, 2], y=[4, 9, 37], pen="2p,black")
# Plot data points on top of the line
# Use squares with a size of 0.3 centimeters, an "orange" fill and a "black" outline
fig.plot(x=[3, 9, 2], y=[4, 9, 37], style="s0.3c", fill="orange", pen="black")
fig.show()