Made shared_axes option supported generally and toggle axiswise when …

…disabled

holoviews/plotting/mpl/plot.py

@@ -251,6 +251,10 @@ class CompositePlot(GenericCompositePlot, MPLPlot):
     subplots to form a Layout.
     """
 
+    shared_axes = param.Boolean(default=True, doc="""
+        Whether axes ranges should be shared across the layout, if
+        disabled switches axiswise normalization option on globally.""")
+
     def _link_dimensioned_streams(self):
         """
         Should perform any linking required to update titles when dimensioned

holoviews/plotting/plot.py

@@ -373,6 +373,7 @@ def compute_ranges(self, obj, key, ranges):
         # been supplied from a composite plot
         return_fn = lambda x: x if isinstance(x, Element) else None
         for group, (axiswise, framewise) in norm_opts.items():
+            axiswise = not getattr(self, 'shared_axes', not axiswise)
             elements = []
             # Skip if ranges are cached or already computed by a
             # higher-level container object.

holoviews/plotting/plotly/plot.py

@@ -54,6 +54,10 @@ class LayoutPlot(PlotlyPlot, GenericLayoutPlot):
 
     vspacing = param.Number(default=0.15, bounds=(0, 1))
 
+    shared_axes = param.Boolean(default=True, doc="""
+        Whether axes ranges should be shared across the layout, if
+        disabled switches axiswise normalization option on globally.""")
+
     def __init__(self, layout, **params):
         super(LayoutPlot, self).__init__(layout, **params)
         self.layout, self.subplots, self.paths = self._init_layout(layout)
@@ -295,6 +299,10 @@ class GridPlot(PlotlyPlot, GenericCompositePlot):
 
     vspacing = param.Number(default=0.05, bounds=(0, 1))
 
+    shared_axes = param.Boolean(default=True, doc="""
+        Whether axes ranges should be shared across the layout, if
+        disabled switches axiswise normalization option on globally.""")
+
     def __init__(self, layout, ranges=None, layout_num=1, **params):
         if not isinstance(layout, GridSpace):
             raise Exception("GridPlot only accepts GridSpace.")

holoviews/tests/plotting/bokeh/testlayoutplot.py

@@ -285,3 +285,14 @@ def test_layout_axis_not_linked_mismatching_unit(self):
         plot = bokeh_renderer.get_plot(layout)
         p1, p2 = (sp.subplots['main'] for sp in plot.subplots.values())
         self.assertIsNot(p1.handles['y_range'], p2.handles['y_range'])
+
+    def test_layout_shared_axes_disabled(self):
+        from holoviews.plotting.bokeh import CurvePlot
+        layout = (Curve([1, 2, 3]) + Curve([10, 20, 30])).opts(shared_axes=False)
+        plot = bokeh_renderer.get_plot(layout)
+        cp1, cp2 = plot.traverse(lambda x: x, [CurvePlot])
+        self.assertFalse(cp1.handles['y_range'] is cp2.handles['y_range'])
+        self.assertEqual(cp1.handles['y_range'].start, 1)
+        self.assertEqual(cp1.handles['y_range'].end, 3)
+        self.assertEqual(cp2.handles['y_range'].start, 10)
+        self.assertEqual(cp2.handles['y_range'].end, 30)

holoviews/tests/plotting/matplotlib/testlayoutplot.py

@@ -47,3 +47,11 @@ def test_layout_dimensioned_stream_title_update(self):
         self.assertIn('test: 1', plot.handles['title'].get_text())
         plot.cleanup()
         self.assertEqual(stream._subscribers, [])
+
+    def test_layout_shared_axes_disabled(self):
+        from holoviews.plotting.mpl import CurvePlot
+        layout = (Curve([1, 2, 3]) + Curve([10, 20, 30])).opts(shared_axes=False)
+        plot = mpl_renderer.get_plot(layout)
+        cp1, cp2 = plot.traverse(lambda x: x, [CurvePlot])
+        self.assertTrue(cp1.handles['axis'].get_ylim(), (1, 3))
+        self.assertTrue(cp2.handles['axis'].get_ylim(), (10, 30))