DOC/Gallery example "Double Y-axes graph": Migrate frame settings to the new Frame/Axis syntax (#4503)

Author: yvonnefroehlich

examples/gallery/basemaps/double_y_axes.py

@@ -20,7 +20,7 @@ class can control which axes should be plotted and optionally show annotations,
 # %%
 import numpy as np
 import pygmt
-from pygmt.params import Position
+from pygmt.params import Axis, Frame, Position
 
 # Generate two sample Y-data from one common X-data
 x = np.linspace(1.0, 9.0, num=9)
@@ -33,7 +33,11 @@ class can control which axes should be plotted and optionally show annotations,
 # The bottom axis (S) is plotted with annotations and tick marks
 # The top axis (t) is plotted without annotations and tick marks
 # The left and right axes are not drawn
-fig.basemap(region=[0, 10, 0, 10], projection="X15c/15c", frame=["St", "xaf+lx"])
+fig.basemap(
+    region=[0, 10, 0, 10],
+    projection="X15c/15c",
+    frame=Frame(axes="St", xaxis=Axis(annot=True, tick=True, label="x")),
+)
 
 # Plot the Y-axis for y1-data
 # The left axis (W) is plotted with blue annotations, ticks, and label
@@ -43,7 +47,7 @@ class can control which axes should be plotted and optionally show annotations,
     FONT_ANNOT_PRIMARY="blue",
     FONT_LABEL="blue",
 ):
-    fig.basemap(frame=["W", "yaf+ly1"])
+    fig.basemap(frame=Frame(axes="W", yaxis=Axis(annot=True, tick=True, label="y1")))
 
 # Plot the line for y1-data
 fig.plot(x=x, y=y1, pen="1p,blue")
@@ -58,7 +62,10 @@ class can control which axes should be plotted and optionally show annotations,
     FONT_ANNOT_PRIMARY="red",
     FONT_LABEL="red",
 ):
-    fig.basemap(region=[0, 10, 100, 200], frame=["E", "yaf+ly2"])
+    fig.basemap(
+        region=[0, 10, 100, 200],
+        frame=Frame(axes="E", yaxis=Axis(annot=True, tick=True, label="y2")),
+    )
 # Plot the line for y2-data
 fig.plot(x=x, y=y2, pen="1p,red")
 # Plot points for y2-data