[Python-modules-commits] [python-mplexporter] 66/135: Workaround for annotation transforms and axis label size.

[Wolfgang Borgert]

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debacle pushed a commit to branch master
in repository python-mplexporter.

commit 7e38d643f86aa06fa3d5f1114b33e92b6c4bda62
Author: theengineear <andseier at gmail.com>
Date:   Thu Feb 27 23:04:12 2014 -0800

    Workaround for annotation transforms and axis label size.
    
    These are hacky workarounds:
    
    - Transform for annotation gives the transformation necessary to get
    annotation coordinates into display coordinates. However, the
    transformation to put these coordinates into data coordinates is not
    given. A solution might be to either pass the axes object upon calling
    draw_text. The 'private' _current_ax object from the base renderer class
    was used to transform annotations to data coordinates (what plotly
    generally uses)
    
    - Axis labels are children of xaxis and yaxis instances, which are
    children of the current axes object. When the label is passed to the
    renderer, it would be helpful to either get this specific text instance
    or the size. I used the current axis to get at the xaxis/yaxis objects
    and then filted their lists of children until i found the label that
    matched the one mplexporter passes to the renderer. I don't know that
    there is a way to get around having to sort through the children and
    compare strings. This probably won't break down for 'normal' use, but a
    pathological example could make it do weird things.
---
 mplexporter/renderers/plotly/plotly_renderer.py | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/mplexporter/renderers/plotly/plotly_renderer.py b/mplexporter/renderers/plotly/plotly_renderer.py
index 26cf1d1..c82d33a 100644
--- a/mplexporter/renderers/plotly/plotly_renderer.py
+++ b/mplexporter/renderers/plotly/plotly_renderer.py
@@ -4,6 +4,7 @@ Plotly Renderer
 This is a renderer class to be used with an exporter for rendering plots in Plotly!
 """
 import plotly
+import matplotlib
 
 from . import plotly_utils
 from .. base import Renderer
@@ -58,6 +59,24 @@ class PlotlyRenderer(Renderer):
                 'anchor': 'x{}'.format(self.axis_ct)
             }
         }
+        if layout['xaxis{}'.format(self.axis_ct)]['title'] not in [None, 'None', 'none', '']:
+            children = ax.xaxis.get_children()
+            for child in children:
+                if isinstance(child, matplotlib.text.Text):
+                    if child.get_text() == layout['xaxis{}'.format(self.axis_ct)]['title']:
+                        titlefont = {
+                            'size': child.get_size()
+                        }
+                        layout['xaxis{}'.format(self.axis_ct)]['titlefont'] = titlefont
+        if layout['yaxis{}'.format(self.axis_ct)]['title'] not in [None, 'None', 'none', '']:
+            children = ax.yaxis.get_children()
+            for child in children:
+                if isinstance(child, matplotlib.text.Text):
+                    if child.get_text() == layout['yaxis{}'.format(self.axis_ct)]['title']:
+                        titlefont = {
+                            'size': child.get_size()
+                        }
+                        layout['yaxis{}'.format(self.axis_ct)]['titlefont'] = titlefont
         for key, value in layout.items():
             self.layout[key] = value
 
@@ -111,8 +130,6 @@ class PlotlyRenderer(Renderer):
     def draw_text(self, **props):
         if 'annotations' not in self.layout:
             self.layout['annotations'] = []
-        print 'new annotation: ', props['text']
-        print 'coordinates: ', props['coordinates']
         annotation = {
             'text': props['text'],
             'font': {'color': props['style']['color'], 'size': props['style']['fontsize']},
@@ -128,7 +145,6 @@ class PlotlyRenderer(Renderer):
         if props['coordinates'] == 'figure':
             data_pos = self._current_ax.transFigure.inverted().transform(props['position'])
             annotation['x'], annotation['y'] = data_pos[0], data_pos[1]
-        print 'adding annotation dict:\n', annotation
         self.layout['annotations'] += annotation,
         # position=position, coordinates=coordinates, style=style, mplobj=text)
 

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