Update controller graph and graph_tools to define plot style (matplotlib 2.2.3)

controllers/graphs.py

@@ -12,11 +12,15 @@ from gluon.storage import Storage
 from graph_tools import (FROM_TO,
                          LABELY_YEAR,
                          linechart,
+                         mplstyle,
                          savefig,
                          stackchart)
 from model_selector import YEAR_SUBMIT
 
 
+mplstyle()
+
+
 def dashboard():
     """Return a pre-configure linechart for public used.
     Cumulative distribution for the publications are shown for

modules/graph_tools.py

@@ -145,6 +145,30 @@ def emptychart(db, selector, target=None):
     return ax
 
 
+def mplstyle():
+    """Helper function to define matplotlib style for plots.
+
+    """
+    mpl.rcParams["font.size"] = 8
+
+    mpl.rcParams["grid.alpha"] = 0.5
+    mpl.rcParams["grid.linestyle"] = "dotted"
+
+    mpl.rcParams["xtick.direction"] = "in"
+    mpl.rcParams["xtick.top"] = True
+    mpl.rcParams["xtick.bottom"] = True
+    mpl.rcParams["xtick.major.size"] = 8
+    mpl.rcParams["xtick.minor.size"] = 4
+    mpl.rcParams["xtick.labelsize"] = 8
+
+    mpl.rcParams["ytick.direction"] = "in"
+    mpl.rcParams["ytick.left"] = True
+    mpl.rcParams["ytick.right"] = True
+    mpl.rcParams["ytick.major.size"] = 8
+    mpl.rcParams["ytick.minor.size"] = 4
+    mpl.rcParams["ytick.labelsize"] = 8
+
+
 def linechart(db, selector, target=None, title=None, xlabel=None, ylabel=None):
     """Build a line chart showing the number of publications as a function
     of the time.
@@ -211,8 +235,6 @@ def linechart(db, selector, target=None, title=None, xlabel=None, ylabel=None):
     #
     # instantiate the graph
     #
-    mpl.rcParams['legend.fontsize'] = 10
-
     if is_submit_month:
         df.index = DatetimeIndex(df.index)
 
@@ -495,8 +517,6 @@ def stackchart(db, selector, target=None):
     #
     # instantiate the graph
     #
-    mpl.rcParams['legend.fontsize'] = 10
-
     kwargs = {}
     if is_submit_month:
         df.index = DatetimeIndex(df.index)