continue refactoring using style sheets

- add base style with constrained_layout enabled
- add style for the ticks examples
- add style for a grid of figures
- resize figures to a maximum width of 57 mm
- small tweaks to arrow connections to accommodate change in figure size

Author: jimustafa

Diff for: scripts/advanced-plots.py

@@ -11,7 +11,11 @@
 import matplotlib.pyplot as plt
 
 
-mpl.style.use(pathlib.Path(__file__).parent/'../styles/plotlet.mplstyle')
+mpl.style.use([
+    pathlib.Path(__file__).parent/'../styles/base.mplstyle',
+    pathlib.Path(__file__).parent/'../styles/plotlet.mplstyle',
+])
+
 
 fig = plt.figure()
 d = 0.01

Diff for: scripts/annotation-arrow-styles.py

@@ -1,16 +1,17 @@
+import pathlib
+
+import matplotlib as mpl
 import matplotlib.pyplot as plt
 import matplotlib.patches as mpatches
 
-styles = mpatches.ArrowStyle.get_styles()
-
 
-def demo_con_style(ax, connectionstyle):
-    ax.text(.05, .95, connectionstyle.replace(",", ",\n"),
-            family="Source Code Pro",
-            transform=ax.transAxes, ha="left", va="top", size="x-small")
+mpl.style.use([
+    pathlib.Path(__file__).parent/'../styles/base.mplstyle',
+    pathlib.Path(__file__).parent/'../styles/plotlet-grid.mplstyle',
+])
 
 
-(fig, axes) = plt.subplots(5, 3, figsize=(4, 2.5), frameon=False)
+(fig, axes) = plt.subplots(5, 3, figsize=(5.7/2.54, 1.5), frameon=True)
 for ax in axes.flatten():
     ax.axis("off")
 for i, (ax, style) in enumerate(zip(axes.flatten(), mpatches.ArrowStyle.get_styles())):
@@ -21,13 +22,14 @@ def demo_con_style(ax, connectionstyle):
                 xy=(x0, y0), xycoords='data',
                 xytext=(x1, y1), textcoords='data',
                 arrowprops=dict(arrowstyle=style,
+                                mutation_scale=10,
                                 color="black",
                                 shrinkA=5, shrinkB=5,
                                 patchA=None, patchB=None,
                                 connectionstyle="arc3,rad=0"))
     ax.text( (x1+x0)/2, y0-0.2, style,
              transform=ax.transAxes,
-             family="Source Code Pro", ha="center", va="top")
+             ha="center", va="top", fontsize=8)
 
 plt.savefig("../figures/annotation-arrow-styles.pdf")
 # plt.show()

Diff for: scripts/annotation-connection-styles.py

@@ -1,6 +1,15 @@
+import pathlib
+
+import matplotlib as mpl
 import matplotlib.pyplot as plt
 
 
+mpl.style.use([
+    pathlib.Path(__file__).parent/'../styles/base.mplstyle',
+    pathlib.Path(__file__).parent/'../styles/plotlet-grid.mplstyle',
+])
+
+
 def demo_con_style(ax, connectionstyle):
     x1, y1 = 0.3, 0.2
     x2, y2 = 0.8, 0.6
@@ -9,29 +18,27 @@ def demo_con_style(ax, connectionstyle):
                 xy=(x1, y1), xycoords='data',
                 xytext=(x2, y2), textcoords='data',
                 arrowprops=dict(arrowstyle="->", color="0.5",
-                                shrinkA=5, shrinkB=5,
+                                shrinkA=2, shrinkB=2,
                                 patchA=None, patchB=None,
                                 connectionstyle=connectionstyle),
                 )
     ax.text(.05, .95, connectionstyle.replace(",", ",\n"),
-            family="Source Code Pro",
-            transform=ax.transAxes, ha="left", va="top", size="x-small")
+            transform=ax.transAxes, ha="left", va="top", size=4)
 
 
-fig, axs = plt.subplots(3, 3, figsize=(5, 5))
+fig, axs = plt.subplots(3, 3, figsize=(5.7/2.54, 5.7/2.54))
 demo_con_style(axs[0, 0], "arc3,rad=0")
 demo_con_style(axs[0, 1], "arc3,rad=0.3")
 demo_con_style(axs[0, 2], "angle3,angleA=0,angleB=90")
 demo_con_style(axs[1, 0], "angle,angleA=-90,angleB=180,rad=0")
-demo_con_style(axs[1, 1], "angle,angleA=-90,angleB=180,rad=25")
-demo_con_style(axs[1, 2], "arc,angleA=-90,angleB=0,armA=0,armB=40,rad=0")
+demo_con_style(axs[1, 1], "angle,angleA=-90,angleB=180,rad=10")
+demo_con_style(axs[1, 2], "arc,angleA=-90,angleB=0,armA=0,armB=20,rad=0")
 demo_con_style(axs[2, 0], "bar,fraction=0.3")
 demo_con_style(axs[2, 1], "bar,fraction=-0.3")
 demo_con_style(axs[2, 2], "bar,angle=180,fraction=-0.2")
 
 for ax in axs.flat:
     ax.set(xlim=(0, 1), ylim=(0, 1), xticks=[], yticks=[], aspect=1)
-fig.tight_layout(pad=0.2)
 
 plt.savefig("../figures/annotation-connection-styles.pdf")
 # plt.show()

Diff for: scripts/basic-plots.py

@@ -11,7 +11,11 @@
 import matplotlib.pyplot as plt
 
 
-mpl.style.use(pathlib.Path(__file__).parent/'../styles/plotlet.mplstyle')
+mpl.style.use([
+    pathlib.Path(__file__).parent/'../styles/base.mplstyle',
+    pathlib.Path(__file__).parent/'../styles/plotlet.mplstyle',
+])
+
 
 fig = plt.figure()
 d = 0.01

Diff for: scripts/interpolations.py

@@ -1,6 +1,16 @@
+import pathlib
+
+import matplotlib as mpl
 import matplotlib.pyplot as plt
 import numpy as np
 
+
+mpl.style.use([
+    pathlib.Path(__file__).parent/'../styles/base.mplstyle',
+    pathlib.Path(__file__).parent/'../styles/plotlet-grid.mplstyle',
+])
+
+
 methods = [None, 'none', 'nearest', 'bilinear', 'bicubic', 'spline16',
            'spline36', 'hanning', 'hamming', 'hermite', 'kaiser', 'quadric',
            'catrom', 'gaussian', 'bessel', 'mitchell', 'sinc', 'lanczos']
@@ -9,14 +19,14 @@
 Z = np.random.uniform(0, 1, (3, 3))
 
 
-fig, axs = plt.subplots(nrows=6, ncols=3, figsize=(4.5, 9),
+fig, axs = plt.subplots(nrows=6, ncols=3, figsize=(5.7/2.54, 5.7/2.54*2),
+                        # fig, axs = plt.subplots(nrows=6, ncols=3, figsize=(4.5,9),
                         subplot_kw={'xticks': [], 'yticks': []})
 for ax, interp_method in zip(axs.flat, methods):
     ax.imshow(Z, interpolation=interp_method, cmap='viridis',
-              extent=[0, 9, 0, 9], rasterized=True)
-    ax.text(4.5, 1, str(interp_method), weight="bold", color="white", size=12,
-            transform=ax.transData, ha="center", va="center")
+              extent=[0, 1, 0, 1], rasterized=True)
+    ax.text(0.5, 0.1, str(interp_method), weight="bold", color="white", size=6,
+            ha="center", va="center")
 
-plt.tight_layout()
 plt.savefig("../figures/interpolations.pdf", dpi=600)
 # plt.show()

Diff for: scripts/projections.py

@@ -2,12 +2,20 @@
 # Matplotlib cheat sheet
 # Released under the BSD License
 # -----------------------------------------------------------------------------
+import pathlib
+
 import numpy as np
 import cartopy
 import matplotlib as mpl
 import matplotlib.pyplot as plt
 
 
+mpl.style.use([
+    pathlib.Path(__file__).parent/'../styles/base.mplstyle',
+    pathlib.Path(__file__).parent/'../styles/plotlet.mplstyle',
+])
+
+
 CARTOPY_SOURCE_TEMPLATE = 'https://naturalearth.s3.amazonaws.com/{resolution}_{category}/ne_{resolution}_{name}.zip'
 
 
@@ -21,26 +29,22 @@
 
 # Polar plot
 # -----------------------------------------------------------------------------
-mpl.rc('axes', linewidth=4.0)
-fig = plt.figure(figsize=(4, 4))
-b = 0.025
-ax = fig.add_axes([b, b, 1-2*b, 1-2*b], projection="polar")
+(fig, ax) = plt.subplots(subplot_kw={'projection': 'polar'})
 T = np.linspace(0, 3*2*np.pi, 500)
 R = np.linspace(0, 2, len(T))
-ax.plot(T, R, color="C1", linewidth=6)
+ax.plot(T, R, color="C1")
 ax.set_xticks(np.linspace(0, 2*np.pi, 2*8))
 ax.set_xticklabels([])
 ax.set_yticks(np.linspace(0, 2, 8))
 ax.set_yticklabels([])
 ax.set_ylim(0, 2)
-ax.grid(linewidth=1)
+ax.grid(linewidth=0.2)
 plt.savefig("../figures/projection-polar.pdf")
 fig.clear()
 
 # 3D plot
 # -----------------------------------------------------------------------------
-mpl.rc('axes', linewidth=2.0)
-ax = fig.add_axes([0, .1, 1, .9], projection="3d")
+(fig, ax) = plt.subplots(subplot_kw={'projection': '3d'})
 r = np.linspace(0, 1.25, 50)
 p = np.linspace(0, 2*np.pi, 50)
 R, P = np.meshgrid(r, p)
@@ -58,10 +62,9 @@
 
 # Cartopy plot
 # -----------------------------------------------------------------------------
-mpl.rc('axes', linewidth=3.0)
-b = 0.025
-ax = fig.add_axes([b, b, 1-2*b, 1-2*b], frameon=False,
-                  projection=cartopy.crs.Orthographic())
+fig = plt.figure()
+ax = fig.add_subplot(frameon=False,
+                     projection=cartopy.crs.Orthographic())
 ax.add_feature(cartopy.feature.LAND, zorder=0,
                facecolor="C1", edgecolor="0.0", linewidth=0)
 plt.savefig("../figures/projection-cartopy.pdf")

Diff for: scripts/tick-formatters.py

@@ -3,42 +3,43 @@
 # Author:  Nicolas P. Rougier
 # License: BSD
 # ----------------------------------------------------------------------------
+import pathlib
+
+import numpy as np
+import matplotlib as mpl
 import matplotlib.pyplot as plt
 import matplotlib.ticker as ticker
 
+
+mpl.style.use([
+    pathlib.Path(__file__).parent/'../styles/base.mplstyle',
+    pathlib.Path(__file__).parent/'../styles/ticks.mplstyle',
+])
+
+
 # Setup a plot such that only the bottom spine is shown
 
 
 def setup(ax):
     """Set up Axes with just an x-Axis."""
-    ax.spines['right'].set_color('none')
-    ax.spines['left'].set_color('none')
     ax.yaxis.set_major_locator(ticker.NullLocator())
-    ax.spines['top'].set_color('none')
-    ax.xaxis.set_ticks_position('bottom')
-    ax.tick_params(which='major', width=1.00, length=5)
-    ax.tick_params(which='minor', width=0.75, length=2.5, labelsize=10)
     ax.set_xlim(0, 5)
     ax.set_ylim(0, 1)
     ax.patch.set_alpha(0.0)
 
 
-fig = plt.figure(figsize=(8, 5))
+fig = plt.figure(figsize=(5.7/2.54, 3.8/2.54))
 fig.patch.set_alpha(0.0)
 n = 7
 
-fontsize = 18
-family = "Source Code Pro"
-
 # Null formatter
 ax = fig.add_subplot(n, 1, 1)
 setup(ax)
 ax.xaxis.set_major_locator(ticker.MultipleLocator(1.00))
 ax.xaxis.set_minor_locator(ticker.MultipleLocator(0.25))
 ax.xaxis.set_major_formatter(ticker.NullFormatter())
 ax.xaxis.set_minor_formatter(ticker.NullFormatter())
-ax.text(0.0, 0.1, "ticker.NullFormatter()", family=family,
-        fontsize=fontsize, transform=ax.transAxes)
+ax.text(0.0, 0.1, "ticker.NullFormatter()", transform=ax.transAxes)
 
 # Fixed formatter
 ax = fig.add_subplot(n, 1, 2)
@@ -47,8 +48,7 @@ def setup(ax):
 ax.xaxis.set_major_locator(ticker.FixedLocator(range(6)))
 majors = ["zero", "one", "two", "three", "four", "five"]
 ax.xaxis.set_major_formatter(ticker.FixedFormatter(majors))
-ax.text(0.0, 0.1, "ticker.FixedFormatter(['zero', 'one', 'two', …])",
-        family=family, fontsize=fontsize, transform=ax.transAxes)
+ax.text(0.0, 0.1, "ticker.FixedFormatter(['zero', 'one', 'two', …])", transform=ax.transAxes)
 
 
 # FuncFormatter can be used as a decorator
@@ -63,8 +63,7 @@ def major_formatter(x, pos):
 ax.xaxis.set_major_locator(ticker.MultipleLocator(1.00))
 ax.xaxis.set_minor_locator(ticker.MultipleLocator(0.25))
 ax.xaxis.set_major_formatter(major_formatter)
-ax.text(0.0, 0.1, 'ticker.FuncFormatter(lambda x, pos: "[%.2f]" % x)',
-        family=family, fontsize=fontsize, transform=ax.transAxes)
+ax.text(0.0, 0.1, 'ticker.FuncFormatter(lambda x, pos: "[%.2f]" % x)', transform=ax.transAxes)
 
 
 # FormatStr formatter
@@ -73,39 +72,31 @@ def major_formatter(x, pos):
 ax.xaxis.set_major_locator(ticker.MultipleLocator(1.00))
 ax.xaxis.set_minor_locator(ticker.MultipleLocator(0.25))
 ax.xaxis.set_major_formatter(ticker.FormatStrFormatter(">%d<"))
-ax.text(0.0, 0.1, "ticker.FormatStrFormatter('>%d<')",
-        family=family, fontsize=fontsize, transform=ax.transAxes)
+ax.text(0.0, 0.1, "ticker.FormatStrFormatter('>%d<')", transform=ax.transAxes)
 
 # Scalar formatter
 ax = fig.add_subplot(n, 1, 5)
 setup(ax)
 ax.xaxis.set_major_locator(ticker.AutoLocator())
 ax.xaxis.set_minor_locator(ticker.AutoMinorLocator())
 ax.xaxis.set_major_formatter(ticker.ScalarFormatter(useMathText=True))
-ax.text(0.0, 0.1, "ticker.ScalarFormatter()",
-        family=family, fontsize=fontsize, transform=ax.transAxes)
+ax.text(0.0, 0.1, "ticker.ScalarFormatter()", transform=ax.transAxes)
 
 # StrMethod formatter
 ax = fig.add_subplot(n, 1, 6)
 setup(ax)
 ax.xaxis.set_major_locator(ticker.MultipleLocator(1.00))
 ax.xaxis.set_minor_locator(ticker.MultipleLocator(0.25))
 ax.xaxis.set_major_formatter(ticker.StrMethodFormatter("{x}"))
-ax.text(0.0, 0.1, "ticker.StrMethodFormatter('{x}')",
-        family=family, fontsize=fontsize, transform=ax.transAxes)
+ax.text(0.0, 0.1, "ticker.StrMethodFormatter('{x}')", transform=ax.transAxes)
 
 # Percent formatter
 ax = fig.add_subplot(n, 1, 7)
 setup(ax)
 ax.xaxis.set_major_locator(ticker.MultipleLocator(1.00))
 ax.xaxis.set_minor_locator(ticker.MultipleLocator(0.25))
 ax.xaxis.set_major_formatter(ticker.PercentFormatter(xmax=5))
-ax.text(0.0, 0.1, "ticker.PercentFormatter(xmax=5)",
-        family=family, fontsize=fontsize, transform=ax.transAxes)
-
-# Push the top of the top axes outside the figure because we only show the
-# bottom spine.
-fig.subplots_adjust(left=0.05, right=0.95, bottom=0.05, top=1.05)
+ax.text(0.0, 0.1, "ticker.PercentFormatter(xmax=5)", transform=ax.transAxes)
 
-plt.savefig("../figures/tick-formatters.pdf", transparent=True)
+plt.savefig("../figures/tick-formatters.pdf")
 # plt.show()