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fix bar_label_kwargs so rotation works #240

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fix bar_label_kwargs so rotation works #240

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9 changes: 5 additions & 4 deletions calour/heatmap/heatmap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -406,6 +406,10 @@ def _ax_bar(ax, values, colors=None, width=0.3, position=0, label=True, label_kw
label_kwargs = {}
kwargs = {'color': 'w', 'weight': 'bold', 'size': 6,
'ha': 'center', 'va': 'center'}
if axis == 0:
kwargs['rotation'] = 0
else:
kwargs['rotation'] = 90
kwargs.update(label_kwargs)

# convert to string and leave it as empty if it is None
Expand All @@ -428,12 +432,10 @@ def _ax_bar(ax, values, colors=None, width=0.3, position=0, label=True, label_kw
# plot the color bar along x axis
pos = prev - offset, position
w, h = i - prev, width
rotation = 0
else:
# plot the color bar along y axis
pos = position, prev - offset
w, h = width, i - prev
rotation = 90
rect = mpatches.Rectangle(
pos, # position
w, # width (size along x axis)
Expand All @@ -448,8 +450,7 @@ def _ax_bar(ax, values, colors=None, width=0.3, position=0, label=True, label_kw
cy = ry + rect.get_height() / 2.0

# add the text in the color bars
ax.annotate(value, (cx, cy), rotation=rotation,
**kwargs)
ax.annotate(value, (cx, cy), **kwargs)

prev = i

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