I’ve tried to reproduce this tutorial and noticed that the output of this looks like this:
as indicated on the tutorial’s website. (Note the labeling of the colorbar for both plots)
How can I get the colorbar labeling of the second figure (integers rather than ranges)?
The source code was just copied from the website, and looks like this:
import numpy as np import pygmt # Create a list of values between 20 and 30 with 0.2 intervals x = np.arange(start=20, stop=30, step=0.2) fig = pygmt.Figure() fig.basemap(frame=["WSne", "af"], region=[20, 30, -10, 10]) # Create a custom CPT with the batlow CPT and 10 discrete z-values (colors), # use color_model="+c0-9" to write the color palette in categorical format and # add labels (0) to (9) for the colorbar legend pygmt.makecpt(cmap="batlow", series=[0, 9, 1], color_model="+c0-9") # Plot 10 lines and set a different z-value for each line for zvalue in range(0, 10): y = zvalue * np.sin(x) fig.plot(x=x, y=y, cmap=True, zvalue=zvalue, pen="thick,+z,-") # Color bar to show the custom CPT and the associated z-values fig.colorbar() fig.show()