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Tiago Peixoto
graph-tool
Commits
64873588
Commit
64873588
authored
May 02, 2013
by
Tiago Peixoto
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Fix drawing when the layout has zero width or height
parent
0e3893f2
Changes
1
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1 changed file
with
10 additions
and
4 deletions
+10
-4
src/graph_tool/draw/cairo_draw.py
src/graph_tool/draw/cairo_draw.py
+10
-4
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src/graph_tool/draw/cairo_draw.py
View file @
64873588
...
...
@@ -953,16 +953,22 @@ def fit_to_view(g, pos, geometry, size, pen_width, M=None, text=None,
x_range
,
y_range
,
x_delta
,
y_delta
=
get_bb
(
g
,
pos
,
size
,
pen_width
,
1
,
text
,
font_family
,
font_size
,
cr
)
zoom_x
=
(
geometry
[
0
]
-
sum
(
x_delta
))
/
(
x_range
[
1
]
-
x_range
[
0
])
zoom_y
=
(
geometry
[
1
]
-
sum
(
y_delta
))
/
(
y_range
[
1
]
-
y_range
[
0
])
dx
=
(
x_range
[
1
]
-
x_range
[
0
])
dy
=
(
y_range
[
1
]
-
y_range
[
0
])
if
dx
==
0
:
dx
=
1
if
dy
==
0
:
dy
=
1
zoom_x
=
(
geometry
[
0
]
-
sum
(
x_delta
))
/
dx
zoom_y
=
(
geometry
[
1
]
-
sum
(
y_delta
))
/
dy
if
np
.
isnan
(
zoom_x
)
or
np
.
isinf
(
zoom_x
)
or
zoom_x
==
0
:
zoom_x
=
1
if
np
.
isnan
(
zoom_y
)
or
np
.
isinf
(
zoom_y
)
or
zoom_y
==
0
:
zoom_y
=
1
pad
=
0.95
zoom
=
min
(
zoom_x
,
zoom_y
)
*
pad
empty_x
=
(
geometry
[
0
]
-
sum
(
x_delta
))
-
(
x_range
[
1
]
-
x_range
[
0
])
*
zoom
empty_y
=
(
geometry
[
1
]
-
sum
(
y_delta
))
-
(
y_range
[
1
]
-
y_range
[
0
])
*
zoom
empty_x
=
(
geometry
[
0
]
-
sum
(
x_delta
))
-
dx
*
zoom
empty_y
=
(
geometry
[
1
]
-
sum
(
y_delta
))
-
dy
*
zoom
offset
=
[
-
x_range
[
0
]
*
zoom
+
empty_x
/
2
+
x_delta
[
0
],
-
y_range
[
0
]
*
zoom
+
empty_y
/
2
+
y_delta
[
0
]]
return
offset
,
zoom
...
...
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