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Source code for matplotlib.markers

"""
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                         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, 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);
                                            deprecated.

                                      ``angle``:
                                          the angle of rotation of the symbol
============================== ====== =========================================

For backward compatibility, the form ``(verts, 0)`` is also accepted, but it is
deprecated and 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'.

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/lines_bars_and_markers/marker_fillstyle_reference`
* :doc:`/gallery/shapes_and_collections/marker_path`


.. |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
from numbers import Number

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(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 marks 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 _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() 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): """ 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()
[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): 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, 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]) else: try: Path(marker) self._marker_function = self._set_vertices except ValueError: raise ValueError('Unrecognized marker style {!r}' .format(marker)) self._marker = marker self._recache()
[docs] def get_path(self): return self._path
[docs] def get_transform(self): return self._transform.frozen()
[docs] def get_alt_path(self): return self._alt_path
[docs] def get_alt_transform(self): return self._alt_transform.frozen()
[docs] 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 isinstance(marker[0], Number): 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: cbook.warn_deprecated( "3.0", "Setting a circle marker using `(..., 3)` is " "deprecated since Matplotlib 3.0, and support for it will " "be removed in 3.2. Directly pass 'o' instead.") self._path = Path.unit_circle() self._transform = Affine2D().scale(0.5).rotate_deg(rotation) else: cbook.warn_deprecated( "3.0", "Passing vertices as `(verts, 0)` is deprecated since " "Matplotlib 3.0, and support for it will be removed in 3.2. " "Directly pass `verts` instead.") 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._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)], [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)