r"""
Functions to handle markers; used by the marker functionality of
`~matplotlib.axes.Axes.plot` and `~matplotlib.axes.Axes.scatter`.
All possible markers are defined here:
============================== ====== =========================================
marker symbol description
============================== ====== =========================================
``"."`` |m00| point
``","`` |m01| pixel
``"o"`` |m02| circle
``"v"`` |m03| triangle_down
``"^"`` |m04| triangle_up
``"<"`` |m05| triangle_left
``">"`` |m06| triangle_right
``"1"`` |m07| tri_down
``"2"`` |m08| tri_up
``"3"`` |m09| tri_left
``"4"`` |m10| tri_right
``"8"`` |m11| octagon
``"s"`` |m12| square
``"p"`` |m13| pentagon
``"P"`` |m23| plus (filled)
``"*"`` |m14| star
``"h"`` |m15| hexagon1
``"H"`` |m16| hexagon2
``"+"`` |m17| plus
``"x"`` |m18| x
``"X"`` |m24| x (filled)
``"D"`` |m19| diamond
``"d"`` |m20| thin_diamond
``"|"`` |m21| vline
``"_"`` |m22| hline
``0`` (``TICKLEFT``) |m25| tickleft
``1`` (``TICKRIGHT``) |m26| tickright
``2`` (``TICKUP``) |m27| tickup
``3`` (``TICKDOWN``) |m28| tickdown
``4`` (``CARETLEFT``) |m29| caretleft
``5`` (``CARETRIGHT``) |m30| caretright
``6`` (``CARETUP``) |m31| caretup
``7`` (``CARETDOWN``) |m32| caretdown
``8`` (``CARETLEFTBASE``) |m33| caretleft (centered at base)
``9`` (``CARETRIGHTBASE``) |m34| caretright (centered at base)
``10`` (``CARETUPBASE``) |m35| caretup (centered at base)
``11`` (``CARETDOWNBASE``) |m36| caretdown (centered at base)
``"None"``, ``" "`` or ``""`` nothing
``'$...$'`` |m37| Render the string using mathtext.
E.g ``"$f$"`` for marker showing the
letter ``f``.
``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, such that the created path
is encapsulated inside the unit cell.
path A `~matplotlib.path.Path` instance.
``(numsides, 0, angle)`` A regular polygon with ``numsides``
sides, rotated by ``angle``.
``(numsides, 1, angle)`` A star-like symbol with ``numsides``
sides, rotated by ``angle``.
``(numsides, 2, angle)`` An asterisk with ``numsides`` sides,
rotated by ``angle``.
============================== ====== =========================================
``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'.
Note that special symbols can be defined via the
:doc:`STIX math font </tutorials/text/mathtext>`,
e.g. ``"$\u266B$"``. For an overview over the STIX font symbols refer to the
`STIX font table <http://www.stixfonts.org/allGlyphs.html>`_.
Also see the :doc:`/gallery/text_labels_and_annotations/stix_fonts_demo`.
Integer numbers from ``0`` to ``11`` create lines and triangles. Those are
equally accessible via capitalized variables, like ``CARETDOWNBASE``.
Hence the following are equivalent::
plt.plot([1, 2, 3], marker=11)
plt.plot([1, 2, 3], marker=matplotlib.markers.CARETDOWNBASE)
Examples showing the use of markers:
* :doc:`/gallery/lines_bars_and_markers/marker_reference`
* :doc:`/gallery/shapes_and_collections/marker_path`
* :doc:`/gallery/lines_bars_and_markers/scatter_star_poly`
.. |m00| image:: /_static/markers/m00.png
.. |m01| image:: /_static/markers/m01.png
.. |m02| image:: /_static/markers/m02.png
.. |m03| image:: /_static/markers/m03.png
.. |m04| image:: /_static/markers/m04.png
.. |m05| image:: /_static/markers/m05.png
.. |m06| image:: /_static/markers/m06.png
.. |m07| image:: /_static/markers/m07.png
.. |m08| image:: /_static/markers/m08.png
.. |m09| image:: /_static/markers/m09.png
.. |m10| image:: /_static/markers/m10.png
.. |m11| image:: /_static/markers/m11.png
.. |m12| image:: /_static/markers/m12.png
.. |m13| image:: /_static/markers/m13.png
.. |m14| image:: /_static/markers/m14.png
.. |m15| image:: /_static/markers/m15.png
.. |m16| image:: /_static/markers/m16.png
.. |m17| image:: /_static/markers/m17.png
.. |m18| image:: /_static/markers/m18.png
.. |m19| image:: /_static/markers/m19.png
.. |m20| image:: /_static/markers/m20.png
.. |m21| image:: /_static/markers/m21.png
.. |m22| image:: /_static/markers/m22.png
.. |m23| image:: /_static/markers/m23.png
.. |m24| image:: /_static/markers/m24.png
.. |m25| image:: /_static/markers/m25.png
.. |m26| image:: /_static/markers/m26.png
.. |m27| image:: /_static/markers/m27.png
.. |m28| image:: /_static/markers/m28.png
.. |m29| image:: /_static/markers/m29.png
.. |m30| image:: /_static/markers/m30.png
.. |m31| image:: /_static/markers/m31.png
.. |m32| image:: /_static/markers/m32.png
.. |m33| image:: /_static/markers/m33.png
.. |m34| image:: /_static/markers/m34.png
.. |m35| image:: /_static/markers/m35.png
.. |m36| image:: /_static/markers/m36.png
.. |m37| image:: /_static/markers/m37.png
"""
from collections.abc import Sized
import numpy as np
from . import cbook, rcParams
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) = range(12)
_empty_path = Path(np.empty((0, 2)))
[docs]class MarkerStyle:
"""
A class representing marker types.
Attributes
----------
markers : list
All known markers.
filled_markers : list
All known filled markers. This is a subset of *markers*.
fillstyles : list
The supported fillstyles.
"""
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
[docs] def __init__(self, marker=None, fillstyle=None):
"""
Parameters
----------
marker : str or array-like or None, default: None
*None* means no marker. For other possible marker values see the
module docstring `matplotlib.markers`.
fillstyle : str, default: 'full'
One of 'full', 'left', 'right', 'bottom', 'top', 'none'.
"""
self._marker_function = None
self.set_fillstyle(fillstyle)
self.set_marker(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()
[docs] def __bool__(self):
return bool(len(self._path.vertices))
[docs] def is_filled(self):
return self._filled
[docs] def get_fillstyle(self):
return self._fillstyle
[docs] def set_fillstyle(self, fillstyle):
"""
Set the fillstyle.
Parameters
----------
fillstyle : {'full', 'left', 'right', 'bottom', 'top', 'none'}
The part of the marker surface that is colored with
markerfacecolor.
"""
if fillstyle is None:
fillstyle = rcParams['markers.fillstyle']
cbook._check_in_list(self.fillstyles, fillstyle=fillstyle)
self._fillstyle = fillstyle
self._recache()
[docs] def get_joinstyle(self):
return self._joinstyle
[docs] def get_capstyle(self):
return self._capstyle
[docs] def get_marker(self):
return self._marker
[docs] def set_marker(self, marker):
"""
Set the marker.
Parameters
----------
marker : str or array-like or None, default: None
*None* means no marker. For other possible marker values see the
module docstring `matplotlib.markers`.
"""
if (isinstance(marker, np.ndarray) and marker.ndim == 2 and
marker.shape[1] == 2):
self._marker_function = self._set_vertices
elif isinstance(marker, str) and cbook.is_math_text(marker):
self._marker_function = self._set_mathtext_path
elif isinstance(marker, Path):
self._marker_function = self._set_path_marker
elif (isinstance(marker, Sized) and len(marker) in (2, 3) and
marker[1] in (0, 1, 2)):
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 isinstance(marker, MarkerStyle):
self.__dict__.update(marker.__dict__)
else:
try:
Path(marker)
self._marker_function = self._set_vertices
except ValueError as err:
raise ValueError('Unrecognized marker style {!r}'
.format(marker)) from err
if not isinstance(marker, MarkerStyle):
self._marker = marker
self._recache()
[docs] def get_path(self):
"""
Return a `.Path` for the primary part of the marker.
For unfilled markers this is the whole marker, for filled markers,
this is the area to be drawn with *markerfacecolor*.
"""
return self._path
[docs] def get_alt_path(self):
"""
Return a `.Path` for the alternate part of the marker.
For unfilled markers, this is *None*; for filled markers, this is the
area to be drawn with *markerfacecoloralt*.
"""
return self._alt_path
[docs] def get_snap_threshold(self):
return self._snap_threshold
def _set_nothing(self):
self._filled = False
def _set_custom_marker(self, path):
rescale = np.max(np.abs(path.vertices)) # max of x's and y's.
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):
self._set_custom_marker(Path(self._marker))
def _set_tuple_marker(self):
marker = self._marker
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'
else:
raise ValueError(f"Unexpected tuple marker: {marker}")
self._transform = Affine2D().scale(0.5).rotate_deg(rotation)
def _set_mathtext_path(self):
"""
Draws mathtext markers '$...$' using TextPath object.
Submitted by tcb
"""
from matplotlib.text import TextPath
# again, the properties could be initialised just once outside
# this function
text = TextPath(xy=(0, 0), s=self.get_marker(),
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):
return self.get_fillstyle() in self._half_fillstyles
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, 1], [-1, -1], [1, -1], [0, 1]], closed=True)
# Going down halfway looks to small. Golden ratio is too far.
_triangle_path_u = Path([[0, 1], [-3/5, -1/5], [3/5, -1/5], [0, 1]],
closed=True)
_triangle_path_d = Path(
[[-3/5, -1/5], [3/5, -1/5], [1, -1], [-1, -1], [-3/5, -1/5]],
closed=True)
_triangle_path_l = Path([[0, 1], [0, -1], [-1, -1], [0, 1]], closed=True)
_triangle_path_r = Path([[0, 1], [0, -1], [1, -1], [0, 1]], closed=True)
def _set_triangle(self, rot, skip):
self._transform = Affine2D().scale(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], [1, 0], [1, 1], [0, 0]])
self._alt_path = Path([[0, 0], [0, 1], [1, 1], [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._set_vline()
self._transform = self._transform.rotate_deg(90)
_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
_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._set_tri_down()
self._transform = self._transform.rotate_deg(180)
def _set_tri_left(self):
self._set_tri_down()
self._transform = self._transform.rotate_deg(270)
def _set_tri_right(self):
self._set_tri_down()
self._transform = self._transform.rotate_deg(90)
_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._set_caretdown()
self._transform = self._transform.rotate_deg(180)
def _set_caretleft(self):
self._set_caretdown()
self._transform = self._transform.rotate_deg(270)
def _set_caretright(self):
self._set_caretdown()
self._transform = self._transform.rotate_deg(90)
_caret_path_base = Path([[-1.0, 0.0], [0.0, -1.5], [1.0, 0]])
def _set_caretdownbase(self):
self._set_caretdown()
self._path = self._caret_path_base
def _set_caretupbase(self):
self._set_caretdownbase()
self._transform = self._transform.rotate_deg(180)
def _set_caretleftbase(self):
self._set_caretdownbase()
self._transform = self._transform.rotate_deg(270)
def _set_caretrightbase(self):
self._set_caretdownbase()
self._transform = self._transform.rotate_deg(90)
_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
_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)], closed=True)
_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)], closed=True)
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)], closed=True)
_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)], closed=True)
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)
