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Make the default margins accessible as attributes #3196

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Merged
benjeffery merged 1 commit into from
Jun 6, 2025
Merged

Make the default margins accessible as attributes #3196

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12 changes: 8 additions & 4 deletions python/tskit/drawing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1614,6 +1614,10 @@ class SvgTree(SvgAxisPlot):
PolytomyLine = collections.namedtuple(
"PolytomyLine", "num_branches, num_samples, line_pos"
)
margin_left = 20
margin_right = 20
margin_top = 10 # oldest point is line_height below or 2*line_height if title given
margin_bottom = 15 # youngest plot points are line_height above this bottom margin

def __init__(
self,
Expand Down Expand Up @@ -1821,10 +1825,10 @@ def __init__(
add_class(self.mutation_label_attrs[m], "lab")

self.set_spacing(
top=10 if title is None else 10 + self.line_height,
left=20,
bottom=15,
right=20,
top=self.margin_top + (0 if title is None else self.line_height),
left=self.margin_left,
bottom=self.margin_bottom,
right=self.margin_right,
)
if title is not None:
self.add_text_in_group(
Expand Down
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