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matplotlib/lib/matplotlib/markers.py at streamplot_example_fix · tmcclintock/matplotlib · GitHub
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"""
This module contains functions to handle markers. Used by both the
marker functionality of `~matplotlib.axes.Axes.plot` and
`~matplotlib.axes.Axes.scatter`.
All possible markers are defined here:
============================== ===============================================
marker description
============================== ===============================================
`"."` point
`","` pixel
`"o"` circle
`"v"` triangle_down
`"^"` triangle_up
`"<"` triangle_left
`">"` triangle_right
`"1"` tri_down
`"2"` tri_up
`"3"` tri_left
`"4"` tri_right
`"8"` octagon
`"s"` square
`"p"` pentagon
`"P"` plus (filled)
`"*"` star
`"h"` hexagon1
`"H"` hexagon2
`"+"` plus
`"x"` x
`"X"` x (filled)
`"D"` diamond
`"d"` thin_diamond
`"|"` vline
`"_"` hline
TICKLEFT tickleft
TICKRIGHT tickright
TICKUP tickup
TICKDOWN tickdown
CARETLEFT caretleft (centered at tip)
CARETRIGHT caretright (centered at tip)
CARETUP caretup (centered at tip)
CARETDOWN caretdown (centered at tip)
CARETLEFTBASE caretleft (centered at base)
CARETRIGHTBASE caretright (centered at base)
CARETUPBASE caretup (centered at base)
`"None"`, `" "` or `""` nothing
``'$...$'`` render the string using mathtext.
`verts` a list of (x, y) pairs used for Path vertices.
The center of the marker is located at (0,0) and
the size is normalized.
path a `~matplotlib.path.Path` instance.
(`numsides`, `style`, `angle`) The marker can also be a tuple (`numsides`,
`style`, `angle`), which will create a custom,
regular symbol.
`numsides`:
the number of sides
`style`:
the style of the regular symbol:
0
a regular polygon
1
a star-like symbol
2
an asterisk
3
a circle (`numsides` and `angle` is
ignored)
`angle`:
the angle of rotation of the symbol
============================== ===============================================
For backward compatibility, the form (`verts`, 0) is also accepted,
but it is equivalent to just `verts` for giving a raw set of vertices
that define the shape.
`None` is the default which means 'nothing', however this table is
referred to from other docs for the valid inputs from marker inputs and in
those cases `None` still means 'default'.
"""
from
__future__
import
(
absolute_import
,
division
,
print_function
,
unicode_literals
)
import
six
from
six
.
moves
import
xrange
from
collections
import
Sized
import
numpy
as
np
from
.
import
rcParams
from
.
cbook
import
is_math_text
,
is_string_like
,
is_numlike
from
.
path
import
Path
from
.
transforms
import
IdentityTransform
,
Affine2D
# special-purpose marker identifiers:
(
TICKLEFT
,
TICKRIGHT
,
TICKUP
,
TICKDOWN
,
CARETLEFT
,
CARETRIGHT
,
CARETUP
,
CARETDOWN
,
CARETLEFTBASE
,
CARETRIGHTBASE
,
CARETUPBASE
,
CARETDOWNBASE
)
=
xrange
(
12
)
_empty_path
=
Path
(
np
.
empty
((
0
,
2
)))
class
MarkerStyle
(
object
):
markers
=
{
'.'
:
'point'
,
','
:
'pixel'
,
'o'
:
'circle'
,
'v'
:
'triangle_down'
,
'^'
:
'triangle_up'
,
'<'
:
'triangle_left'
,
'>'
:
'triangle_right'
,
'1'
:
'tri_down'
,
'2'
:
'tri_up'
,
'3'
:
'tri_left'
,
'4'
:
'tri_right'
,
'8'
:
'octagon'
,
's'
:
'square'
,
'p'
:
'pentagon'
,
'*'
:
'star'
,
'h'
:
'hexagon1'
,
'H'
:
'hexagon2'
,
'+'
:
'plus'
,
'x'
:
'x'
,
'D'
:
'diamond'
,
'd'
:
'thin_diamond'
,
'|'
:
'vline'
,
'_'
:
'hline'
,
'P'
:
'plus_filled'
,
'X'
:
'x_filled'
,
TICKLEFT
:
'tickleft'
,
TICKRIGHT
:
'tickright'
,
TICKUP
:
'tickup'
,
TICKDOWN
:
'tickdown'
,
CARETLEFT
:
'caretleft'
,
CARETRIGHT
:
'caretright'
,
CARETUP
:
'caretup'
,
CARETDOWN
:
'caretdown'
,
CARETLEFTBASE
:
'caretleftbase'
,
CARETRIGHTBASE
:
'caretrightbase'
,
CARETUPBASE
:
'caretupbase'
,
CARETDOWNBASE
:
'caretdownbase'
,
"None"
:
'nothing'
,
None
:
'nothing'
,
' '
:
'nothing'
,
''
:
'nothing'
}
# Just used for informational purposes. is_filled()
# is calculated in the _set_* functions.
filled_markers
=
(
'o'
,
'v'
,
'^'
,
'<'
,
'>'
,
'8'
,
's'
,
'p'
,
'*'
,
'h'
,
'H'
,
'D'
,
'd'
,
'P'
,
'X'
)
fillstyles
=
(
'full'
,
'left'
,
'right'
,
'bottom'
,
'top'
,
'none'
)
_half_fillstyles
=
(
'left'
,
'right'
,
'bottom'
,
'top'
)
# TODO: Is this ever used as a non-constant?
_point_size_reduction
=
0.5
def
__init__
(
self
,
marker
=
None
,
fillstyle
=
None
):
"""
MarkerStyle
Attributes
----------
markers : list of known markes
fillstyles : list of known fillstyles
filled_markers : list of known filled markers.
Parameters
----------
marker : string or array_like, optional, default: None
See the descriptions of possible markers in the module docstring.
fillstyle : string, optional, default: 'full'
'full', 'left", 'right', 'bottom', 'top', 'none'
"""
self
.
_marker_function
=
None
self
.
set_fillstyle
(
fillstyle
)
self
.
set_marker
(
marker
)
def
__getstate__
(
self
):
d
=
self
.
__dict__
.
copy
()
d
.
pop
(
'_marker_function'
)
return
d
def
__setstate__
(
self
,
statedict
):
self
.
__dict__
=
statedict
self
.
set_marker
(
self
.
_marker
)
def
_recache
(
self
):
if
self
.
_marker_function
is
None
:
return
self
.
_path
=
_empty_path
self
.
_transform
=
IdentityTransform
()
self
.
_alt_path
=
None
self
.
_alt_transform
=
None
self
.
_snap_threshold
=
None
self
.
_joinstyle
=
'round'
self
.
_capstyle
=
'butt'
self
.
_filled
=
True
self
.
_marker_function
()
if
six
.
PY3
:
def
__bool__
(
self
):
return
bool
(
len
(
self
.
_path
.
vertices
))
else
:
def
__nonzero__
(
self
):
return
bool
(
len
(
self
.
_path
.
vertices
))
def
is_filled
(
self
):
return
self
.
_filled
def
get_fillstyle
(
self
):
return
self
.
_fillstyle
def
set_fillstyle
(
self
,
fillstyle
):
"""
Sets fillstyle
Parameters
----------
fillstyle : string amongst known fillstyles
"""
if
fillstyle
is
None
:
fillstyle
=
rcParams
[
'markers.fillstyle'
]
if
fillstyle
not
in
self
.
fillstyles
:
raise
ValueError
(
"Unrecognized fillstyle %s"
%
' '
.
join
(
self
.
fillstyles
))
self
.
_fillstyle
=
fillstyle
self
.
_recache
()
def
get_joinstyle
(
self
):
return
self
.
_joinstyle
def
get_capstyle
(
self
):
return
self
.
_capstyle
def
get_marker
(
self
):
return
self
.
_marker
def
set_marker
(
self
,
marker
):
if
(
isinstance
(
marker
,
np
.
ndarray
)
and
marker
.
ndim
==
2
and
marker
.
shape
[
1
]
==
2
):
self
.
_marker_function
=
self
.
_set_vertices
elif
(
isinstance
(
marker
,
Sized
)
and
len
(
marker
)
in
(
2
,
3
)
and
marker
[
1
]
in
(
0
,
1
,
2
,
3
)):
self
.
_marker_function
=
self
.
_set_tuple_marker
elif
(
not
isinstance
(
marker
, (
np
.
ndarray
,
list
))
and
marker
in
self
.
markers
):
self
.
_marker_function
=
getattr
(
self
,
'_set_'
+
self
.
markers
[
marker
])
elif
is_string_like
(
marker
)
and
is_math_text
(
marker
):
self
.
_marker_function
=
self
.
_set_mathtext_path
elif
isinstance
(
marker
,
Path
):
self
.
_marker_function
=
self
.
_set_path_marker
else
:
try
:
Path
(
marker
)
self
.
_marker_function
=
self
.
_set_vertices
except
ValueError
:
raise
ValueError
(
'Unrecognized marker style'
' {0}'
.
format
(
marker
))
self
.
_marker
=
marker
self
.
_recache
()
def
get_path
(
self
):
return
self
.
_path
def
get_transform
(
self
):
return
self
.
_transform
.
frozen
()
def
get_alt_path
(
self
):
return
self
.
_alt_path
def
get_alt_transform
(
self
):
return
self
.
_alt_transform
.
frozen
()
def
get_snap_threshold
(
self
):
return
self
.
_snap_threshold
def
_set_nothing
(
self
):
self
.
_filled
=
False
def
_set_custom_marker
(
self
,
path
):
verts
=
path
.
vertices
rescale
=
max
(
np
.
max
(
np
.
abs
(
verts
[:,
0
])),
np
.
max
(
np
.
abs
(
verts
[:,
1
])))
self
.
_transform
=
Affine2D
().
scale
(
0.5
/
rescale
)
self
.
_path
=
path
def
_set_path_marker
(
self
):
self
.
_set_custom_marker
(
self
.
_marker
)
def
_set_vertices
(
self
):
verts
=
self
.
_marker
marker
=
Path
(
verts
)
self
.
_set_custom_marker
(
marker
)
def
_set_tuple_marker
(
self
):
marker
=
self
.
_marker
if
is_numlike
(
marker
[
0
]):
if
len
(
marker
)
==
2
:
numsides
,
rotation
=
marker
[
0
],
0.0
elif
len
(
marker
)
==
3
:
numsides
,
rotation
=
marker
[
0
],
marker
[
2
]
symstyle
=
marker
[
1
]
if
symstyle
==
0
:
self
.
_path
=
Path
.
unit_regular_polygon
(
numsides
)
self
.
_joinstyle
=
'miter'
elif
symstyle
==
1
:
self
.
_path
=
Path
.
unit_regular_star
(
numsides
)
self
.
_joinstyle
=
'bevel'
elif
symstyle
==
2
:
self
.
_path
=
Path
.
unit_regular_asterisk
(
numsides
)
self
.
_filled
=
False
self
.
_joinstyle
=
'bevel'
elif
symstyle
==
3
:
self
.
_path
=
Path
.
unit_circle
()
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
rotation
)
else
:
verts
=
np
.
asarray
(
marker
[
0
])
path
=
Path
(
verts
)
self
.
_set_custom_marker
(
path
)
def
_set_mathtext_path
(
self
):
"""
Draws mathtext markers '$...$' using TextPath object.
Submitted by tcb
"""
from
matplotlib
.
text
import
TextPath
from
matplotlib
.
font_manager
import
FontProperties
# again, the properties could be initialised just once outside
# this function
# Font size is irrelevant here, it will be rescaled based on
# the drawn size later
props
=
FontProperties
(
size
=
1.0
)
text
=
TextPath
(
xy
=
(
0
,
0
),
s
=
self
.
get_marker
(),
fontproperties
=
props
,
usetex
=
rcParams
[
'text.usetex'
])
if
len
(
text
.
vertices
)
==
0
:
return
xmin
,
ymin
=
text
.
vertices
.
min
(
axis
=
0
)
xmax
,
ymax
=
text
.
vertices
.
max
(
axis
=
0
)
width
=
xmax
-
xmin
height
=
ymax
-
ymin
max_dim
=
max
(
width
,
height
)
self
.
_transform
=
Affine2D
() \
.
translate
(
-
xmin
+
0.5
*
-
width
,
-
ymin
+
0.5
*
-
height
) \
.
scale
(
1.0
/
max_dim
)
self
.
_path
=
text
self
.
_snap
=
False
def
_half_fill
(
self
):
fs
=
self
.
get_fillstyle
()
result
=
fs
in
self
.
_half_fillstyles
return
result
def
_set_circle
(
self
,
reduction
=
1.0
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
*
reduction
)
self
.
_snap_threshold
=
np
.
inf
fs
=
self
.
get_fillstyle
()
if
not
self
.
_half_fill
():
self
.
_path
=
Path
.
unit_circle
()
else
:
# build a right-half circle
if
fs
==
'bottom'
:
rotate
=
270.
elif
fs
==
'top'
:
rotate
=
90.
elif
fs
==
'left'
:
rotate
=
180.
else
:
rotate
=
0.
self
.
_path
=
self
.
_alt_path
=
Path
.
unit_circle_righthalf
()
self
.
_transform
.
rotate_deg
(
rotate
)
self
.
_alt_transform
=
self
.
_transform
.
frozen
().
rotate_deg
(
180.
)
def
_set_pixel
(
self
):
self
.
_path
=
Path
.
unit_rectangle
()
# Ideally, you'd want -0.5, -0.5 here, but then the snapping
# algorithm in the Agg backend will round this to a 2x2
# rectangle from (-1, -1) to (1, 1). By offsetting it
# slightly, we can force it to be (0, 0) to (1, 1), which both
# makes it only be a single pixel and places it correctly
# aligned to 1-width stroking (i.e. the ticks). This hack is
# the best of a number of bad alternatives, mainly because the
# backends are not aware of what marker is actually being used
# beyond just its path data.
self
.
_transform
=
Affine2D
().
translate
(
-
0.49999
,
-
0.49999
)
self
.
_snap_threshold
=
None
def
_set_point
(
self
):
self
.
_set_circle
(
reduction
=
self
.
_point_size_reduction
)
_triangle_path
=
Path
(
[[
0.0
,
1.0
], [
-
1.0
,
-
1.0
], [
1.0
,
-
1.0
], [
0.0
,
1.0
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
# Going down halfway looks to small. Golden ratio is too far.
_triangle_path_u
=
Path
(
[[
0.0
,
1.0
], [
-
3
/
5.
,
-
1
/
5.
], [
3
/
5.
,
-
1
/
5.
], [
0.0
,
1.0
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
_triangle_path_d
=
Path
(
[[
-
3
/
5.
,
-
1
/
5.
], [
3
/
5.
,
-
1
/
5.
], [
1.0
,
-
1.0
], [
-
1.0
,
-
1.0
],
[
-
3
/
5.
,
-
1
/
5.
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
_triangle_path_l
=
Path
(
[[
0.0
,
1.0
], [
0.0
,
-
1.0
], [
-
1.0
,
-
1.0
], [
0.0
,
1.0
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
_triangle_path_r
=
Path
(
[[
0.0
,
1.0
], [
0.0
,
-
1.0
], [
1.0
,
-
1.0
], [
0.0
,
1.0
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
def
_set_triangle
(
self
,
rot
,
skip
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
,
0.5
).
rotate_deg
(
rot
)
self
.
_snap_threshold
=
5.0
fs
=
self
.
get_fillstyle
()
if
not
self
.
_half_fill
():
self
.
_path
=
self
.
_triangle_path
else
:
mpaths
=
[
self
.
_triangle_path_u
,
self
.
_triangle_path_l
,
self
.
_triangle_path_d
,
self
.
_triangle_path_r
]
if
fs
==
'top'
:
self
.
_path
=
mpaths
[(
0
+
skip
)
%
4
]
self
.
_alt_path
=
mpaths
[(
2
+
skip
)
%
4
]
elif
fs
==
'bottom'
:
self
.
_path
=
mpaths
[(
2
+
skip
)
%
4
]
self
.
_alt_path
=
mpaths
[(
0
+
skip
)
%
4
]
elif
fs
==
'left'
:
self
.
_path
=
mpaths
[(
1
+
skip
)
%
4
]
self
.
_alt_path
=
mpaths
[(
3
+
skip
)
%
4
]
else
:
self
.
_path
=
mpaths
[(
3
+
skip
)
%
4
]
self
.
_alt_path
=
mpaths
[(
1
+
skip
)
%
4
]
self
.
_alt_transform
=
self
.
_transform
self
.
_joinstyle
=
'miter'
def
_set_triangle_up
(
self
):
return
self
.
_set_triangle
(
0.0
,
0
)
def
_set_triangle_down
(
self
):
return
self
.
_set_triangle
(
180.0
,
2
)
def
_set_triangle_left
(
self
):
return
self
.
_set_triangle
(
90.0
,
3
)
def
_set_triangle_right
(
self
):
return
self
.
_set_triangle
(
270.0
,
1
)
def
_set_square
(
self
):
self
.
_transform
=
Affine2D
().
translate
(
-
0.5
,
-
0.5
)
self
.
_snap_threshold
=
2.0
fs
=
self
.
get_fillstyle
()
if
not
self
.
_half_fill
():
self
.
_path
=
Path
.
unit_rectangle
()
else
:
# build a bottom filled square out of two rectangles, one
# filled. Use the rotation to support left, right, bottom
# or top
if
fs
==
'bottom'
:
rotate
=
0.
elif
fs
==
'top'
:
rotate
=
180.
elif
fs
==
'left'
:
rotate
=
270.
else
:
rotate
=
90.
self
.
_path
=
Path
([[
0.0
,
0.0
], [
1.0
,
0.0
], [
1.0
,
0.5
],
[
0.0
,
0.5
], [
0.0
,
0.0
]])
self
.
_alt_path
=
Path
([[
0.0
,
0.5
], [
1.0
,
0.5
], [
1.0
,
1.0
],
[
0.0
,
1.0
], [
0.0
,
0.5
]])
self
.
_transform
.
rotate_deg
(
rotate
)
self
.
_alt_transform
=
self
.
_transform
self
.
_joinstyle
=
'miter'
def
_set_diamond
(
self
):
self
.
_transform
=
Affine2D
().
translate
(
-
0.5
,
-
0.5
).
rotate_deg
(
45
)
self
.
_snap_threshold
=
5.0
fs
=
self
.
get_fillstyle
()
if
not
self
.
_half_fill
():
self
.
_path
=
Path
.
unit_rectangle
()
else
:
self
.
_path
=
Path
([[
0.0
,
0.0
], [
1.0
,
0.0
], [
1.0
,
1.0
], [
0.0
,
0.0
]])
self
.
_alt_path
=
Path
([[
0.0
,
0.0
], [
0.0
,
1.0
],
[
1.0
,
1.0
], [
0.0
,
0.0
]])
if
fs
==
'bottom'
:
rotate
=
270.
elif
fs
==
'top'
:
rotate
=
90.
elif
fs
==
'left'
:
rotate
=
180.
else
:
rotate
=
0.
self
.
_transform
.
rotate_deg
(
rotate
)
self
.
_alt_transform
=
self
.
_transform
self
.
_joinstyle
=
'miter'
def
_set_thin_diamond
(
self
):
self
.
_set_diamond
()
self
.
_transform
.
scale
(
0.6
,
1.0
)
def
_set_pentagon
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
5.0
polypath
=
Path
.
unit_regular_polygon
(
5
)
fs
=
self
.
get_fillstyle
()
if
not
self
.
_half_fill
():
self
.
_path
=
polypath
else
:
verts
=
polypath
.
vertices
y
=
(
1
+
np
.
sqrt
(
5
))
/
4.
top
=
Path
([
verts
[
0
],
verts
[
1
],
verts
[
4
],
verts
[
0
]])
bottom
=
Path
([
verts
[
1
],
verts
[
2
],
verts
[
3
],
verts
[
4
],
verts
[
1
]])
left
=
Path
([
verts
[
0
],
verts
[
1
],
verts
[
2
], [
0
,
-
y
],
verts
[
0
]])
right
=
Path
([
verts
[
0
],
verts
[
4
],
verts
[
3
], [
0
,
-
y
],
verts
[
0
]])
if
fs
==
'top'
:
mpath
,
mpath_alt
=
top
,
bottom
elif
fs
==
'bottom'
:
mpath
,
mpath_alt
=
bottom
,
top
elif
fs
==
'left'
:
mpath
,
mpath_alt
=
left
,
right
else
:
mpath
,
mpath_alt
=
right
,
left
self
.
_path
=
mpath
self
.
_alt_path
=
mpath_alt
self
.
_alt_transform
=
self
.
_transform
self
.
_joinstyle
=
'miter'
def
_set_star
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
5.0
fs
=
self
.
get_fillstyle
()
polypath
=
Path
.
unit_regular_star
(
5
,
innerCircle
=
0.381966
)
if
not
self
.
_half_fill
():
self
.
_path
=
polypath
else
:
verts
=
polypath
.
vertices
top
=
Path
(
np
.
vstack
((
verts
[
0
:
4
, :],
verts
[
7
:
10
, :],
verts
[
0
])))
bottom
=
Path
(
np
.
vstack
((
verts
[
3
:
8
, :],
verts
[
3
])))
left
=
Path
(
np
.
vstack
((
verts
[
0
:
6
, :],
verts
[
0
])))
right
=
Path
(
np
.
vstack
((
verts
[
0
],
verts
[
5
:
10
, :],
verts
[
0
])))
if
fs
==
'top'
:
mpath
,
mpath_alt
=
top
,
bottom
elif
fs
==
'bottom'
:
mpath
,
mpath_alt
=
bottom
,
top
elif
fs
==
'left'
:
mpath
,
mpath_alt
=
left
,
right
else
:
mpath
,
mpath_alt
=
right
,
left
self
.
_path
=
mpath
self
.
_alt_path
=
mpath_alt
self
.
_alt_transform
=
self
.
_transform
self
.
_joinstyle
=
'bevel'
def
_set_hexagon1
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
None
fs
=
self
.
get_fillstyle
()
polypath
=
Path
.
unit_regular_polygon
(
6
)
if
not
self
.
_half_fill
():
self
.
_path
=
polypath
else
:
verts
=
polypath
.
vertices
# not drawing inside lines
x
=
np
.
abs
(
np
.
cos
(
5
*
np
.
pi
/
6.
))
top
=
Path
(
np
.
vstack
(([
-
x
,
0
],
verts
[(
1
,
0
,
5
), :], [
x
,
0
])))
bottom
=
Path
(
np
.
vstack
(([
-
x
,
0
],
verts
[
2
:
5
, :], [
x
,
0
])))
left
=
Path
(
verts
[(
0
,
1
,
2
,
3
), :])
right
=
Path
(
verts
[(
0
,
5
,
4
,
3
), :])
if
fs
==
'top'
:
mpath
,
mpath_alt
=
top
,
bottom
elif
fs
==
'bottom'
:
mpath
,
mpath_alt
=
bottom
,
top
elif
fs
==
'left'
:
mpath
,
mpath_alt
=
left
,
right
else
:
mpath
,
mpath_alt
=
right
,
left
self
.
_path
=
mpath
self
.
_alt_path
=
mpath_alt
self
.
_alt_transform
=
self
.
_transform
self
.
_joinstyle
=
'miter'
def
_set_hexagon2
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
30
)
self
.
_snap_threshold
=
None
fs
=
self
.
get_fillstyle
()
polypath
=
Path
.
unit_regular_polygon
(
6
)
if
not
self
.
_half_fill
():
self
.
_path
=
polypath
else
:
verts
=
polypath
.
vertices
# not drawing inside lines
x
,
y
=
np
.
sqrt
(
3
)
/
4
,
3
/
4.
top
=
Path
(
verts
[(
1
,
0
,
5
,
4
,
1
), :])
bottom
=
Path
(
verts
[(
1
,
2
,
3
,
4
), :])
left
=
Path
(
np
.
vstack
(([
x
,
y
],
verts
[(
0
,
1
,
2
), :],
[
-
x
,
-
y
], [
x
,
y
])))
right
=
Path
(
np
.
vstack
(([
x
,
y
],
verts
[(
5
,
4
,
3
), :], [
-
x
,
-
y
])))
if
fs
==
'top'
:
mpath
,
mpath_alt
=
top
,
bottom
elif
fs
==
'bottom'
:
mpath
,
mpath_alt
=
bottom
,
top
elif
fs
==
'left'
:
mpath
,
mpath_alt
=
left
,
right
else
:
mpath
,
mpath_alt
=
right
,
left
self
.
_path
=
mpath
self
.
_alt_path
=
mpath_alt
self
.
_alt_transform
=
self
.
_transform
self
.
_joinstyle
=
'miter'
def
_set_octagon
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
5.0
fs
=
self
.
get_fillstyle
()
polypath
=
Path
.
unit_regular_polygon
(
8
)
if
not
self
.
_half_fill
():
self
.
_transform
.
rotate_deg
(
22.5
)
self
.
_path
=
polypath
else
:
x
=
np
.
sqrt
(
2.
)
/
4.
half
=
Path
([[
0
,
-
1
], [
0
,
1
], [
-
x
,
1
], [
-
1
,
x
],
[
-
1
,
-
x
], [
-
x
,
-
1
], [
0
,
-
1
]])
if
fs
==
'bottom'
:
rotate
=
90.
elif
fs
==
'top'
:
rotate
=
270.
elif
fs
==
'right'
:
rotate
=
180.
else
:
rotate
=
0.
self
.
_transform
.
rotate_deg
(
rotate
)
self
.
_path
=
self
.
_alt_path
=
half
self
.
_alt_transform
=
self
.
_transform
.
frozen
().
rotate_deg
(
180.0
)
self
.
_joinstyle
=
'miter'
_line_marker_path
=
Path
([[
0.0
,
-
1.0
], [
0.0
,
1.0
]])
def
_set_vline
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
1.0
self
.
_filled
=
False
self
.
_path
=
self
.
_line_marker_path
def
_set_hline
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
90
)
self
.
_snap_threshold
=
1.0
self
.
_filled
=
False
self
.
_path
=
self
.
_line_marker_path
_tickhoriz_path
=
Path
([[
0.0
,
0.0
], [
1.0
,
0.0
]])
def
_set_tickleft
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
-
1.0
,
1.0
)
self
.
_snap_threshold
=
1.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tickhoriz_path
def
_set_tickright
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
1.0
,
1.0
)
self
.
_snap_threshold
=
1.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tickhoriz_path
_tickvert_path
=
Path
([[
-
0.0
,
0.0
], [
-
0.0
,
1.0
]])
def
_set_tickup
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
1.0
,
1.0
)
self
.
_snap_threshold
=
1.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tickvert_path
def
_set_tickdown
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
1.0
,
-
1.0
)
self
.
_snap_threshold
=
1.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tickvert_path
_plus_path
=
Path
([[
-
1.0
,
0.0
], [
1.0
,
0.0
],
[
0.0
,
-
1.0
], [
0.0
,
1.0
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
MOVETO
,
Path
.
LINETO
])
def
_set_plus
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
1.0
self
.
_filled
=
False
self
.
_path
=
self
.
_plus_path
_tri_path
=
Path
([[
0.0
,
0.0
], [
0.0
,
-
1.0
],
[
0.0
,
0.0
], [
0.8
,
0.5
],
[
0.0
,
0.0
], [
-
0.8
,
0.5
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
MOVETO
,
Path
.
LINETO
])
def
_set_tri_down
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
5.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tri_path
def
_set_tri_up
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
180
)
self
.
_snap_threshold
=
5.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tri_path
def
_set_tri_left
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
270
)
self
.
_snap_threshold
=
5.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tri_path
def
_set_tri_right
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
90
)
self
.
_snap_threshold
=
5.0
self
.
_filled
=
False
self
.
_path
=
self
.
_tri_path
_caret_path
=
Path
([[
-
1.0
,
1.5
], [
0.0
,
0.0
], [
1.0
,
1.5
]])
def
_set_caretdown
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path
self
.
_joinstyle
=
'miter'
def
_set_caretup
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
180
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path
self
.
_joinstyle
=
'miter'
def
_set_caretleft
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
270
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path
self
.
_joinstyle
=
'miter'
def
_set_caretright
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
90
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path
self
.
_joinstyle
=
'miter'
_caret_path_base
=
Path
([[
-
1.0
,
0.0
], [
0.0
,
-
1.5
], [
1.0
,
0
]])
def
_set_caretdownbase
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path_base
self
.
_joinstyle
=
'miter'
def
_set_caretupbase
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
180
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path_base
self
.
_joinstyle
=
'miter'
def
_set_caretleftbase
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
270
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path_base
self
.
_joinstyle
=
'miter'
def
_set_caretrightbase
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
).
rotate_deg
(
90
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_caret_path_base
self
.
_joinstyle
=
'miter'
_x_path
=
Path
([[
-
1.0
,
-
1.0
], [
1.0
,
1.0
],
[
-
1.0
,
1.0
], [
1.0
,
-
1.0
]],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
MOVETO
,
Path
.
LINETO
])
def
_set_x
(
self
):
self
.
_transform
=
Affine2D
().
scale
(
0.5
)
self
.
_snap_threshold
=
3.0
self
.
_filled
=
False
self
.
_path
=
self
.
_x_path
_plus_filled_path
=
Path
([(
1
/
3
,
0
), (
2
/
3
,
0
), (
2
/
3
,
1
/
3
),
(
1
,
1
/
3
), (
1
,
2
/
3
), (
2
/
3
,
2
/
3
),
(
2
/
3
,
1
), (
1
/
3
,
1
), (
1
/
3
,
2
/
3
),
(
0
,
2
/
3
), (
0
,
1
/
3
), (
1
/
3
,
1
/
3
),
(
1
/
3
,
0
)],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
_plus_filled_path_t
=
Path
([(
1
,
1
/
2
), (
1
,
2
/
3
), (
2
/
3
,
2
/
3
),
(
2
/
3
,
1
), (
1
/
3
,
1
), (
1
/
3
,
2
/
3
),
(
0
,
2
/
3
), (
0
,
1
/
2
), (
1
,
1
/
2
)],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
def
_set_plus_filled
(
self
):
self
.
_transform
=
Affine2D
().
translate
(
-
0.5
,
-
0.5
)
self
.
_snap_threshold
=
5.0
self
.
_joinstyle
=
'miter'
fs
=
self
.
get_fillstyle
()
if
not
self
.
_half_fill
():
self
.
_path
=
self
.
_plus_filled_path
else
:
# Rotate top half path to support all partitions
if
fs
==
'top'
:
rotate
,
rotate_alt
=
0
,
180
elif
fs
==
'bottom'
:
rotate
,
rotate_alt
=
180
,
0
elif
fs
==
'left'
:
rotate
,
rotate_alt
=
90
,
270
else
:
rotate
,
rotate_alt
=
270
,
90
self
.
_path
=
self
.
_plus_filled_path_t
self
.
_alt_path
=
self
.
_plus_filled_path_t
self
.
_alt_transform
=
Affine2D
().
translate
(
-
0.5
,
-
0.5
)
self
.
_transform
.
rotate_deg
(
rotate
)
self
.
_alt_transform
.
rotate_deg
(
rotate_alt
)
_x_filled_path
=
Path
([(
0.25
,
0
), (
0.5
,
0.25
), (
0.75
,
0
), (
1
,
0.25
),
(
0.75
,
0.5
), (
1
,
0.75
), (
0.75
,
1
), (
0.5
,
0.75
),
(
0.25
,
1
), (
0
,
0.75
), (
0.25
,
0.5
), (
0
,
0.25
),
(
0.25
,
0
)],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
_x_filled_path_t
=
Path
([(
0.75
,
0.5
), (
1
,
0.75
), (
0.75
,
1
),
(
0.5
,
0.75
), (
0.25
,
1
), (
0
,
0.75
),
(
0.25
,
0.5
), (
0.75
,
0.5
)],
[
Path
.
MOVETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
LINETO
,
Path
.
CLOSEPOLY
])
def
_set_x_filled
(
self
):
self
.
_transform
=
Affine2D
().
translate
(
-
0.5
,
-
0.5
)
self
.
_snap_threshold
=
5.0
self
.
_joinstyle
=
'miter'
fs
=
self
.
get_fillstyle
()
if
not
self
.
_half_fill
():
self
.
_path
=
self
.
_x_filled_path
else
:
# Rotate top half path to support all partitions
if
fs
==
'top'
:
rotate
,
rotate_alt
=
0
,
180
elif
fs
==
'bottom'
:
rotate
,
rotate_alt
=
180
,
0
elif
fs
==
'left'
:
rotate
,
rotate_alt
=
90
,
270
else
:
rotate
,
rotate_alt
=
270
,
90
self
.
_path
=
self
.
_x_filled_path_t
self
.
_alt_path
=
self
.
_x_filled_path_t
self
.
_alt_transform
=
Affine2D
().
translate
(
-
0.5
,
-
0.5
)
self
.
_transform
.
rotate_deg
(
rotate
)
self
.
_alt_transform
.
rotate_deg
(
rotate_alt
)
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