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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

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<div id="unreleased-message"> You are reading an old version of the documentation (v3.4.0). For the latest version see <a href="https://matplotlib.org/stable/api/path_api.html">https://matplotlib.org/stable/api/path_api.html</a></div>

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<h1><code class="docutils literal notranslate">matplotlib.path</code><a class="headerlink" href="#module-matplotlib.path" title="Permalink to this headline">¶</a></h1>

A module for dealing with the polylines used throughout Matplotlib.

The primary class for polyline handling in Matplotlib is <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a>. Almost all

vector drawing makes use of <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a>s somewhere in the drawing pipeline.

Whilst a <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> instance itself cannot be drawn, some <a class="reference internal" href="artist_api.html#matplotlib.artist.Artist" title="matplotlib.artist.Artist"><code class="xref py py-obj docutils literal notranslate">Artist</code></a> subclasses,

such as <a class="reference internal" href="_as_gen/matplotlib.patches.PathPatch.html#matplotlib.patches.PathPatch" title="matplotlib.patches.PathPatch"><code class="xref py py-obj docutils literal notranslate">PathPatch</code></a> and <a class="reference internal" href="collections_api.html#matplotlib.collections.PathCollection" title="matplotlib.collections.PathCollection"><code class="xref py py-obj docutils literal notranslate">PathCollection</code></a>, can be used for convenient <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a>

visualisation.

class <code class="descclassname">matplotlib.path.</code><code class="descname">Path</code>(vertices, codes=None, _interpolation_steps=1, closed=False, readonly=False)<a class="reference internal" href="../_modules/matplotlib/path.html#Path">[source]</a><a class="headerlink" href="#matplotlib.path.Path" title="Permalink to this definition">¶</a></dt>

<dd>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.9)"><code class="xref py py-class docutils literal notranslate">object</code></a>

A series of possibly disconnected, possibly closed, line and curve

segments.

The underlying storage is made up of two parallel numpy arrays:

<li>vertices: an Nx2 float array of vertices</li>

<li>codes: an N-length uint8 array of vertex types, or None</li>

</ul>

These two arrays always have the same length in the first

dimension. For example, to represent a cubic curve, you must

provide three vertices as well as three codes <code class="docutils literal notranslate">CURVE3</code>.

The code types are:

<dt><code class="docutils literal notranslate">STOP</code>1 vertex (ignored)</dt><dd>A marker for the end of the entire path (currently not required and

ignored)</dd>

</dl>

</li>

<dt><code class="docutils literal notranslate">MOVETO</code>1 vertex</dt><dd>Pick up the pen and move to the given vertex.</dd>

</dl>

</li>

<dt><code class="docutils literal notranslate">LINETO</code>1 vertex</dt><dd>Draw a line from the current position to the given vertex.</dd>

</dl>

</li>

<dt><code class="docutils literal notranslate">CURVE3</code>1 control point, 1 endpoint</dt><dd>Draw a quadratic Bezier curve from the current position, with the given

control point, to the given end point.</dd>

</dl>

</li>

<dt><code class="docutils literal notranslate">CURVE4</code>2 control points, 1 endpoint</dt><dd>Draw a cubic Bezier curve from the current position, with the given

control points, to the given end point.</dd>

</dl>

</li>

<dt><code class="docutils literal notranslate">CLOSEPOLY</code>1 vertex (ignored)</dt><dd>Draw a line segment to the start point of the current polyline.</dd>

</dl>

</li>

</ul>

If codes is None, it is interpreted as a <code class="docutils literal notranslate">MOVETO</code> followed by a series

of <code class="docutils literal notranslate">LINETO</code>.

Users of Path objects should not access the vertices and codes arrays

directly. Instead, they should use <a class="reference internal" href="#matplotlib.path.Path.iter_segments" title="matplotlib.path.Path.iter_segments"><code class="xref py py-obj docutils literal notranslate">iter_segments</code></a> or <a class="reference internal" href="#matplotlib.path.Path.cleaned" title="matplotlib.path.Path.cleaned"><code class="xref py py-obj docutils literal notranslate">cleaned</code></a> to get the

vertex/code pairs. This helps, in particular, to consistently handle the

case of codes being None.

Some behavior of Path objects can be controlled by rcParams. See the

rcParams whose keys start with 'path.'.

Note

The vertices and codes arrays should be treated as

immutable -- there are a number of optimizations and assumptions

made up front in the constructor that will not change when the

data changes.

</div>

Create a new path with the given vertices and codes.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">

<dt>vertices(N, 2) array-like</dt><dd>The path vertices, as an array, masked array or sequence of pairs.

Masked values, if any, will be converted to NaNs, which are then

handled correctly by the Agg PathIterator and other consumers of

path data, such as <a class="reference internal" href="#matplotlib.path.Path.iter_segments" title="matplotlib.path.Path.iter_segments"><code class="xref py py-meth docutils literal notranslate">iter_segments()</code></a>.

</dd>

<dt>codesarray-like or None, optional</dt><dd>n-length array integers representing the codes of the path.

If not None, codes must be the same length as vertices.

If None, vertices will be treated as a series of line segments.

</dd>

<dt>_interpolation_stepsint, optional</dt><dd>Used as a hint to certain projections, such as Polar, that this

path should be linearly interpolated immediately before drawing.

This attribute is primarily an implementation detail and is not

intended for public use.

</dd>

<dt>closedbool, optional</dt><dd>If codes is None and closed is True, vertices will be treated as

line segments of a closed polygon. Note that the last vertex will

then be ignored (as the corresponding code will be set to

CLOSEPOLY).

</dd>

<dt>readonlybool, optional</dt><dd>Makes the path behave in an immutable way and sets the vertices

and codes as read-only arrays.

</dd>

</dl>

</td>

</tr>

</tbody>

</table>

<code class="descname">CLOSEPOLY</code> = 79<a class="headerlink" href="#matplotlib.path.Path.CLOSEPOLY" title="Permalink to this definition">¶</a></dt>

<code class="descname">CURVE3</code> = 3<a class="headerlink" href="#matplotlib.path.Path.CURVE3" title="Permalink to this definition">¶</a></dt>

<code class="descname">CURVE4</code> = 4<a class="headerlink" href="#matplotlib.path.Path.CURVE4" title="Permalink to this definition">¶</a></dt>

<code class="descname">LINETO</code> = 2<a class="headerlink" href="#matplotlib.path.Path.LINETO" title="Permalink to this definition">¶</a></dt>

<code class="descname">MOVETO</code> = 1<a class="headerlink" href="#matplotlib.path.Path.MOVETO" title="Permalink to this definition">¶</a></dt>

<code class="descname">NUM_VERTICES_FOR_CODE</code> = {0: 1, 1: 1, 2: 1, 3: 2, 4: 3, 79: 1}<a class="headerlink" href="#matplotlib.path.Path.NUM_VERTICES_FOR_CODE" title="Permalink to this definition">¶</a></dt>

<dd>A dictionary mapping Path codes to the number of vertices that the

code expects.

</dd></dl>

classmethod <code class="descname">arc</code>(theta1, theta2, n=None, is_wedge=False)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.arc">[source]</a><a class="headerlink" href="#matplotlib.path.Path.arc" title="Permalink to this definition">¶</a></dt>

<dd>Return the unit circle arc from angles theta1 to theta2 (in

degrees).

theta2 is unwrapped to produce the shortest arc within 360 degrees.

That is, if theta2 > theta1 + 360, the arc will be from theta1 to

theta2 - 360 and not a full circle plus some extra overlap.

If n is provided, it is the number of spline segments to make.

If n is not provided, the number of spline segments is

determined based on the delta between theta1 and theta2.

<div>Masionobe, L. 2003. <a class="reference external" href="http://www.spaceroots.org/documents/ellipse/index.html">Drawing an elliptical arc using

polylines, quadratic or cubic Bezier curves</a>.</div></blockquote>

</dd></dl>

classmethod <code class="descname">circle</code>(center=0.0, 0.0, radius=1.0, readonly=False)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.circle">[source]</a><a class="headerlink" href="#matplotlib.path.Path.circle" title="Permalink to this definition">¶</a></dt>

<dd>Return a <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> representing a circle of a given radius and center.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">

<dt>center(float, float), default: (0, 0)</dt><dd>The center of the circle.

</dd>

<dt>radiusfloat, default: 1</dt><dd>The radius of the circle.

</dd>

<dt>readonlybool</dt><dd>Whether the created path should have the "readonly" argument

set when creating the Path instance.

</dd>

</dl>

</td>

</tr>

</tbody>

</table>

Notes

The circle is approximated using 8 cubic Bezier curves, as described in

<div>Lancaster, Don. <a class="reference external" href="https://www.tinaja.com/glib/ellipse4.pdf">Approximating a Circle or an Ellipse Using Four

Bezier Cubic Splines</a>.</div></blockquote>

</dd></dl>

<code class="descname">cleaned</code>(self, transform=None, remove_nans=False, clip=None, quantize=<deprecated parameter>, simplify=False, curves=False, stroke_width=1.0, snap=False, sketch=None)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.cleaned">[source]</a><a class="headerlink" href="#matplotlib.path.Path.cleaned" title="Permalink to this definition">¶</a></dt>

<dd>Return a new Path with vertices and codes cleaned according to the

parameters.

See also

<dt><a class="reference internal" href="#matplotlib.path.Path.iter_segments" title="matplotlib.path.Path.iter_segments"><code class="xref py py-obj docutils literal notranslate">Path.iter_segments</code></a></dt><dd>for details of the keyword arguments.</dd>

</dl>

</div>

</dd></dl>

<code class="descname">clip_to_bbox</code>(self, bbox, inside=True)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.clip_to_bbox">[source]</a><a class="headerlink" href="#matplotlib.path.Path.clip_to_bbox" title="Permalink to this definition">¶</a></dt>

<dd>Clip the path to the given bounding box.

The path must be made up of one or more closed polygons. This

algorithm will not behave correctly for unclosed paths.

If inside is <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.9)"><code class="xref py py-obj docutils literal notranslate">True</code></a>, clip to the inside of the box, otherwise

to the outside of the box.

</dd></dl>

<dd>alias of <code class="xref py py-class docutils literal notranslate">numpy.uint8</code>

</dd></dl>

property <code class="descname">codes</code><a class="headerlink" href="#matplotlib.path.Path.codes" title="Permalink to this definition">¶</a></dt>

<dd>The list of codes in the <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> as a 1D numpy array. Each

code is one of <a class="reference internal" href="#matplotlib.path.Path.STOP" title="matplotlib.path.Path.STOP"><code class="xref py py-obj docutils literal notranslate">STOP</code></a>, <a class="reference internal" href="#matplotlib.path.Path.MOVETO" title="matplotlib.path.Path.MOVETO"><code class="xref py py-obj docutils literal notranslate">MOVETO</code></a>, <a class="reference internal" href="#matplotlib.path.Path.LINETO" title="matplotlib.path.Path.LINETO"><code class="xref py py-obj docutils literal notranslate">LINETO</code></a>, <a class="reference internal" href="#matplotlib.path.Path.CURVE3" title="matplotlib.path.Path.CURVE3"><code class="xref py py-obj docutils literal notranslate">CURVE3</code></a>, <a class="reference internal" href="#matplotlib.path.Path.CURVE4" title="matplotlib.path.Path.CURVE4"><code class="xref py py-obj docutils literal notranslate">CURVE4</code></a>

or <a class="reference internal" href="#matplotlib.path.Path.CLOSEPOLY" title="matplotlib.path.Path.CLOSEPOLY"><code class="xref py py-obj docutils literal notranslate">CLOSEPOLY</code></a>. For codes that correspond to more than one

vertex (<a class="reference internal" href="#matplotlib.path.Path.CURVE3" title="matplotlib.path.Path.CURVE3"><code class="xref py py-obj docutils literal notranslate">CURVE3</code></a> and <a class="reference internal" href="#matplotlib.path.Path.CURVE4" title="matplotlib.path.Path.CURVE4"><code class="xref py py-obj docutils literal notranslate">CURVE4</code></a>), that code will be repeated so

that the length of <code class="xref py py-obj docutils literal notranslate">self.vertices</code> and <code class="xref py py-obj docutils literal notranslate">self.codes</code> is always

the same.

</dd></dl>

<code class="descname">contains_path</code>(self, path, transform=None)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.contains_path">[source]</a><a class="headerlink" href="#matplotlib.path.Path.contains_path" title="Permalink to this definition">¶</a></dt>

<dd>Return whether this (closed) path completely contains the given path.

If transform is not <code class="docutils literal notranslate">None</code>, the path will be transformed before

checking for containment.

</dd></dl>

<code class="descname">contains_point</code>(self, point, transform=None, radius=0.0)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.contains_point">[source]</a><a class="headerlink" href="#matplotlib.path.Path.contains_point" title="Permalink to this definition">¶</a></dt>

<dd>Return whether the area enclosed by the path contains the given point.

The path is always treated as closed; i.e. if the last code is not

CLOSEPOLY an implicit segment connecting the last vertex to the first

vertex is assumed.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">

<dt>point(float, float)</dt><dd>The point (x, y) to check.

</dd>

<dt>transform<a class="reference internal" href="transformations.html#matplotlib.transforms.Transform" title="matplotlib.transforms.Transform"><code class="xref py py-obj docutils literal notranslate">matplotlib.transforms.Transform</code></a>, optional</dt><dd>If not <code class="docutils literal notranslate">None</code>, point will be compared to <code class="docutils literal notranslate">self</code> transformed

by transform; i.e. for a correct check, transform should

transform the path into the coordinate system of point.

</dd>

<dt>radiusfloat, default: 0</dt><dd>Add an additional margin on the path in coordinates of point.

The path is extended tangentially by radius/2; i.e. if you would

draw the path with a linewidth of radius, all points on the line

would still be considered to be contained in the area. Conversely,

negative values shrink the area: Points on the imaginary line

will be considered outside the area.

</dd>

</dl>

</td>

</tr>

<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">

</dl>

</td>

</tr>

</tbody>

</table>

Notes

The current algorithm has some limitations:

<li>The result is undefined for points exactly at the boundary

(i.e. at the path shifted by radius/2).</li>

<li>The result is undefined if there is no enclosed area, i.e. all

vertices are on a straight line.</li>

<li>If bounding lines start to cross each other due to radius shift,

the result is not guaranteed to be correct.</li>

</ul>

</dd></dl>

<code class="descname">contains_points</code>(self, points, transform=None, radius=0.0)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.contains_points">[source]</a><a class="headerlink" href="#matplotlib.path.Path.contains_points" title="Permalink to this definition">¶</a></dt>

<dd>Return whether the area enclosed by the path contains the given points.

The path is always treated as closed; i.e. if the last code is not

CLOSEPOLY an implicit segment connecting the last vertex to the first

vertex is assumed.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">

<dt>points(N, 2) array</dt><dd>The points to check. Columns contain x and y values.

</dd>

<dt>transform<a class="reference internal" href="transformations.html#matplotlib.transforms.Transform" title="matplotlib.transforms.Transform"><code class="xref py py-obj docutils literal notranslate">matplotlib.transforms.Transform</code></a>, optional</dt><dd>If not <code class="docutils literal notranslate">None</code>, points will be compared to <code class="docutils literal notranslate">self</code> transformed

by transform; i.e. for a correct check, transform should

transform the path into the coordinate system of points.

</dd>

<dt>radiusfloat, default: 0</dt><dd>Add an additional margin on the path in coordinates of points.

The path is extended tangentially by radius/2; i.e. if you would

draw the path with a linewidth of radius, all points on the line

would still be considered to be contained in the area. Conversely,

negative values shrink the area: Points on the imaginary line

will be considered outside the area.

</dd>

</dl>

</td>

</tr>

<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">

<dt>length-N bool array</dt><dd></dd>

</dl>

</td>

</tr>

</tbody>

</table>

Notes

The current algorithm has some limitations:

<li>The result is undefined for points exactly at the boundary

(i.e. at the path shifted by radius/2).</li>

<li>The result is undefined if there is no enclosed area, i.e. all

vertices are on a straight line.</li>

<li>If bounding lines start to cross each other due to radius shift,

the result is not guaranteed to be correct.</li>

</ul>

</dd></dl>

<dd>Return a shallow copy of the <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a>, which will share the

vertices and codes with the source <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a>.

</dd></dl>

<code class="descname">deepcopy</code>(self, memo=None)<a class="headerlink" href="#matplotlib.path.Path.deepcopy" title="Permalink to this definition">¶</a></dt>

<dd>Return a deepcopy of the <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a>. The <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> will not be

readonly, even if the source <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> is.

</dd></dl>

<code class="descname">get_extents</code>(self, transform=None, **kwargs)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.get_extents">[source]</a><a class="headerlink" href="#matplotlib.path.Path.get_extents" title="Permalink to this definition">¶</a></dt>

<dd>Get Bbox of the path.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">

<dt>transformmatplotlib.transforms.Transform, optional</dt><dd>Transform to apply to path before computing extents, if any.

</dd>

<dt>**kwargs</dt><dd>Forwarded to <a class="reference internal" href="#matplotlib.path.Path.iter_bezier" title="matplotlib.path.Path.iter_bezier"><code class="xref py py-obj docutils literal notranslate">iter_bezier</code></a>.

</dd>

</dl>

</td>

</tr>

<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">

<dt>matplotlib.transforms.Bbox</dt><dd>The extents of the path Bbox([[xmin, ymin], [xmax, ymax]])

</dd>

</dl>

</td>

</tr>

</tbody>

</table>

</dd></dl>

static <code class="descname">hatch</code>(hatchpattern, density=6)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.hatch">[source]</a><a class="headerlink" href="#matplotlib.path.Path.hatch" title="Permalink to this definition">¶</a></dt>

<dd>Given a hatch specifier, hatchpattern, generates a Path that

can be used in a repeated hatching pattern. density is the

number of lines per unit square.

</dd></dl>

<code class="descname">interpolated</code>(self, steps)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.interpolated">[source]</a><a class="headerlink" href="#matplotlib.path.Path.interpolated" title="Permalink to this definition">¶</a></dt>

<dd>Return a new path resampled to length N x steps.

Codes other than LINETO are not handled correctly.

</dd></dl>

<code class="descname">intersects_bbox</code>(self, bbox, filled=True)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.intersects_bbox">[source]</a><a class="headerlink" href="#matplotlib.path.Path.intersects_bbox" title="Permalink to this definition">¶</a></dt>

<dd>Return whether this path intersects a given <a class="reference internal" href="transformations.html#matplotlib.transforms.Bbox" title="matplotlib.transforms.Bbox"><code class="xref py py-obj docutils literal notranslate">Bbox</code></a>.

If filled is True, then this also returns True if the path completely

encloses the <a class="reference internal" href="transformations.html#matplotlib.transforms.Bbox" title="matplotlib.transforms.Bbox"><code class="xref py py-obj docutils literal notranslate">Bbox</code></a> (i.e., the path is treated as filled).

The bounding box is always considered filled.

</dd></dl>

<code class="descname">intersects_path</code>(self, other, filled=True)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.intersects_path">[source]</a><a class="headerlink" href="#matplotlib.path.Path.intersects_path" title="Permalink to this definition">¶</a></dt>

<dd>Return whether if this path intersects another given path.

If filled is True, then this also returns True if one path completely

encloses the other (i.e., the paths are treated as filled).

</dd></dl>

<code class="descname">iter_bezier</code>(self, **kwargs)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.iter_bezier">[source]</a><a class="headerlink" href="#matplotlib.path.Path.iter_bezier" title="Permalink to this definition">¶</a></dt>

<dd>Iterate over each bezier curve (lines included) in a Path.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">

<dt>**kwargs</dt><dd>Forwarded to <a class="reference internal" href="#matplotlib.path.Path.iter_segments" title="matplotlib.path.Path.iter_segments"><code class="xref py py-obj docutils literal notranslate">iter_segments</code></a>.

</dd>

</dl>

</td>

</tr>

<tr class="field-even field"><th class="field-name">Yields:</th><td class="field-body"><dl class="first last docutils">

<dt>Bmatplotlib.bezier.BezierSegment</dt><dd>The bezier curves that make up the current path. Note in particular

that freestanding points are bezier curves of order 0, and lines

are bezier curves of order 1 (with two control points).

</dd>

<dt>codePath.code_type</dt><dd>The code describing what kind of curve is being returned.

Path.MOVETO, Path.LINETO, Path.CURVE3, Path.CURVE4 correspond to

bezier curves with 1, 2, 3, and 4 control points (respectively).

Path.CLOSEPOLY is a Path.LINETO with the control points correctly

chosen based on the start/end points of the current stroke.

</dd>

</dl>

</td>

</tr>

</tbody>

</table>

</dd></dl>

<code class="descname">iter_segments</code>(self, transform=None, remove_nans=True, clip=None, snap=False, stroke_width=1.0, simplify=None, curves=True, sketch=None)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.iter_segments">[source]</a><a class="headerlink" href="#matplotlib.path.Path.iter_segments" title="Permalink to this definition">¶</a></dt>

<dd>Iterate over all curve segments in the path.

Each iteration returns a pair <code class="docutils literal notranslate">(vertices, code)</code>, where <code class="docutils literal notranslate">vertices</code>

is a sequence of 1-3 coordinate pairs, and <code class="docutils literal notranslate">code</code> is a <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> code.

Additionally, this method can provide a number of standard cleanups and

conversions to the path.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">

<dt>transformNone or <a class="reference internal" href="transformations.html#matplotlib.transforms.Transform" title="matplotlib.transforms.Transform"><code class="xref py py-class docutils literal notranslate">Transform</code></a></dt><dd>If not None, the given affine transformation will be applied to the

path.

</dd>

<dt>remove_nansbool, optional</dt><dd>Whether to remove all NaNs from the path and skip over them using

MOVETO commands.

</dd>

<dt>clipNone or (float, float, float, float), optional</dt><dd>If not None, must be a four-tuple (x1, y1, x2, y2)

defining a rectangle in which to clip the path.

</dd>

<dt>snapNone or bool, optional</dt><dd>If True, snap all nodes to pixels; if False, don't snap them.

If None, snap if the path contains only segments

parallel to the x or y axes, and no more than 1024 of them.

</dd>

<dt>stroke_widthfloat, optional</dt><dd>The width of the stroke being drawn (used for path snapping).

</dd>

<dt>simplifyNone or bool, optional</dt><dd>Whether to simplify the path by removing vertices

that do not affect its appearance. If None, use the

<a class="reference internal" href="#matplotlib.path.Path.should_simplify" title="matplotlib.path.Path.should_simplify"><code class="xref py py-attr docutils literal notranslate">should_simplify</code></a> attribute. See also <code class="docutils literal notranslate"><a class="reference external" href="../tutorials/introductory/customizing.html?highlight=path.simplify#a-sample-matplotlibrc-file">rcParams["path.simplify"]</a></code> (default: <code class="docutils literal notranslate">True</code>)

and <code class="docutils literal notranslate"><a class="reference external" href="../tutorials/introductory/customizing.html?highlight=path.simplify_threshold#a-sample-matplotlibrc-file">rcParams["path.simplify_threshold"]</a></code> (default: <code class="docutils literal notranslate">0.111111111111</code>).

</dd>

<dt>curvesbool, optional</dt><dd>If True, curve segments will be returned as curve segments.

If False, all curves will be converted to line segments.

</dd>

<dt>sketchNone or sequence, optional</dt><dd>If not None, must be a 3-tuple of the form

(scale, length, randomness), representing the sketch parameters.

</dd>

</dl>

</td>

</tr>

</tbody>

</table>

</dd></dl>

classmethod <code class="descname">make_compound_path</code>(*args)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.make_compound_path">[source]</a><a class="headerlink" href="#matplotlib.path.Path.make_compound_path" title="Permalink to this definition">¶</a></dt>

<dd>Make a compound path from a list of Path objects. Blindly removes all

Path.STOP control points.

</dd></dl>

classmethod <code class="descname">make_compound_path_from_polys</code>(XY)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.make_compound_path_from_polys">[source]</a><a class="headerlink" href="#matplotlib.path.Path.make_compound_path_from_polys" title="Permalink to this definition">¶</a></dt>

<dd>Make a compound path object to draw a number

of polygons with equal numbers of sides XY is a (numpolys x

numsides x 2) numpy array of vertices. Return object is a

(<a class="reference external" href="../gallery/misc/histogram_path.py">Source code</a>, <a class="reference external" href="../gallery/misc/histogram_path_00_00.png">png</a>, <a class="reference external" href="../gallery/misc/histogram_path_00_00.pdf">pdf</a>)

</div>

</dd></dl>

property <code class="descname">readonly</code><a class="headerlink" href="#matplotlib.path.Path.readonly" title="Permalink to this definition">¶</a></dt>

<dd><a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.9)"><code class="xref py py-obj docutils literal notranslate">True</code></a> if the <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> is read-only.

</dd></dl>

property <code class="descname">should_simplify</code><a class="headerlink" href="#matplotlib.path.Path.should_simplify" title="Permalink to this definition">¶</a></dt>

</dd></dl>

property <code class="descname">simplify_threshold</code><a class="headerlink" href="#matplotlib.path.Path.simplify_threshold" title="Permalink to this definition">¶</a></dt>

<dd>The fraction of a pixel difference below which vertices will

be simplified out.

</dd></dl>

<code class="descname">to_polygons</code>(self, transform=None, width=0, height=0, closed_only=True)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.to_polygons">[source]</a><a class="headerlink" href="#matplotlib.path.Path.to_polygons" title="Permalink to this definition">¶</a></dt>

<dd>Convert this path to a list of polygons or polylines. Each

polygon/polyline is an Nx2 array of vertices. In other words,

each polygon has no <code class="docutils literal notranslate">MOVETO</code> instructions or curves. This

is useful for displaying in backends that do not support

compound paths or Bezier curves.

If width and height are both non-zero then the lines will

be simplified so that vertices outside of (0, 0), (width,

height) will be clipped.

If closed_only is <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.9)"><code class="xref py py-obj docutils literal notranslate">True</code></a> (default), only closed polygons,

with the last point being the same as the first point, will be

returned. Any unclosed polylines in the path will be

explicitly closed. If closed_only is <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.9)"><code class="xref py py-obj docutils literal notranslate">False</code></a>, any unclosed

polygons in the path will be returned as unclosed polygons,

and the closed polygons will be returned explicitly closed by

setting the last point to the same as the first point.

</dd></dl>

<code class="descname">transformed</code>(self, transform)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.transformed">[source]</a><a class="headerlink" href="#matplotlib.path.Path.transformed" title="Permalink to this definition">¶</a></dt>

<dd>Return a transformed copy of the path.

See also

<dt><a class="reference internal" href="transformations.html#matplotlib.transforms.TransformedPath" title="matplotlib.transforms.TransformedPath"><code class="xref py py-obj docutils literal notranslate">matplotlib.transforms.TransformedPath</code></a></dt><dd>A specialized path class that will cache the transformed result and automatically update when the transform changes.</dd>

</dl>

</div>

</dd></dl>

classmethod <code class="descname">unit_circle</code>()<a class="reference internal" href="../_modules/matplotlib/path.html#Path.unit_circle">[source]</a><a class="headerlink" href="#matplotlib.path.Path.unit_circle" title="Permalink to this definition">¶</a></dt>

<dd>Return the readonly <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-class docutils literal notranslate">Path</code></a> of the unit circle.

For most cases, <a class="reference internal" href="#matplotlib.path.Path.circle" title="matplotlib.path.Path.circle"><code class="xref py py-func docutils literal notranslate">Path.circle()</code></a> will be what you want.

</dd></dl>

classmethod <code class="descname">unit_circle_righthalf</code>()<a class="reference internal" href="../_modules/matplotlib/path.html#Path.unit_circle_righthalf">[source]</a><a class="headerlink" href="#matplotlib.path.Path.unit_circle_righthalf" title="Permalink to this definition">¶</a></dt>

See <a class="reference internal" href="#matplotlib.path.Path.circle" title="matplotlib.path.Path.circle"><code class="xref py py-obj docutils literal notranslate">Path.circle</code></a> for the reference on the approximation used.

</dd></dl>

classmethod <code class="descname">unit_rectangle</code>()<a class="reference internal" href="../_modules/matplotlib/path.html#Path.unit_rectangle">[source]</a><a class="headerlink" href="#matplotlib.path.Path.unit_rectangle" title="Permalink to this definition">¶</a></dt>

<dd>Return a <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> instance of the unit rectangle from (0, 0) to (1, 1).

</dd></dl>

classmethod <code class="descname">unit_regular_asterisk</code>(numVertices)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.unit_regular_asterisk">[source]</a><a class="headerlink" href="#matplotlib.path.Path.unit_regular_asterisk" title="Permalink to this definition">¶</a></dt>

<dd>Return a <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-class docutils literal notranslate">Path</code></a> for a unit regular asterisk with the given

numVertices and radius of 1.0, centered at (0, 0).

</dd></dl>

classmethod <code class="descname">unit_regular_polygon</code>(numVertices)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.unit_regular_polygon">[source]</a><a class="headerlink" href="#matplotlib.path.Path.unit_regular_polygon" title="Permalink to this definition">¶</a></dt>

given numVertices such that the circumscribing circle has radius 1.0,

centered at (0, 0).

</dd></dl>

classmethod <code class="descname">unit_regular_star</code>(numVertices, innerCircle=0.5)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.unit_regular_star">[source]</a><a class="headerlink" href="#matplotlib.path.Path.unit_regular_star" title="Permalink to this definition">¶</a></dt>

numVertices and radius of 1.0, centered at (0, 0).

</dd></dl>

property <code class="descname">vertices</code><a class="headerlink" href="#matplotlib.path.Path.vertices" title="Permalink to this definition">¶</a></dt>

<dd>The list of vertices in the <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a> as an Nx2 numpy array.

</dd></dl>

classmethod <code class="descname">wedge</code>(theta1, theta2, n=None)<a class="reference internal" href="../_modules/matplotlib/path.html#Path.wedge">[source]</a><a class="headerlink" href="#matplotlib.path.Path.wedge" title="Permalink to this definition">¶</a></dt>

<dd>Return the unit circle wedge from angles theta1 to theta2 (in

degrees).

theta2 is unwrapped to produce the shortest wedge within 360 degrees.

That is, if theta2 > theta1 + 360, the wedge will be from theta1

to theta2 - 360 and not a full circle plus some extra overlap.

If n is provided, it is the number of spline segments to make.

If n is not provided, the number of spline segments is

determined based on the delta between theta1 and theta2.

See <a class="reference internal" href="#matplotlib.path.Path.arc" title="matplotlib.path.Path.arc"><code class="xref py py-obj docutils literal notranslate">Path.arc</code></a> for the reference on the approximation used.

</dd></dl>

<code class="descclassname">matplotlib.path.</code><code class="descname">get_path_collection_extents</code>(master_transform, paths, transforms, offsets, offset_transform)<a class="reference internal" href="../_modules/matplotlib/path.html#get_path_collection_extents">[source]</a><a class="headerlink" href="#matplotlib.path.get_path_collection_extents" title="Permalink to this definition">¶</a></dt>

<dd>Given a sequence of <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a>s, <a class="reference internal" href="transformations.html#matplotlib.transforms.Transform" title="matplotlib.transforms.Transform"><code class="xref py py-obj docutils literal notranslate">Transform</code></a>s objects, and offsets, as

found in a <a class="reference internal" href="collections_api.html#matplotlib.collections.PathCollection" title="matplotlib.collections.PathCollection"><code class="xref py py-obj docutils literal notranslate">PathCollection</code></a>, returns the bounding box that encapsulates

all of them.

<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">

<dt>master_transform<a class="reference internal" href="transformations.html#matplotlib.transforms.Transform" title="matplotlib.transforms.Transform"><code class="xref py py-obj docutils literal notranslate">Transform</code></a></dt><dd>Global transformation applied to all paths.

</dd>

<dt>pathslist of <a class="reference internal" href="#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-obj docutils literal notranslate">Path</code></a></dt><dd></dd>

<dt>transformslist of <a class="reference internal" href="transformations.html#matplotlib.transforms.Affine2D" title="matplotlib.transforms.Affine2D"><code class="xref py py-obj docutils literal notranslate">Affine2D</code></a></dt><dd></dd>

<dt>offsets(N, 2) array-like</dt><dd></dd>

<dt>offset_transform<a class="reference internal" href="transformations.html#matplotlib.transforms.Affine2D" title="matplotlib.transforms.Affine2D"><code class="xref py py-obj docutils literal notranslate">Affine2D</code></a></dt><dd>Transform applied to the offsets before offsetting the path.

</dd>

</dl>

</td>

</tr>

</tbody>

</table>

Notes

The way that paths, transforms and offsets are combined

follows the same method as for collections: Each is iterated over

independently, so if you have 3 paths, 2 transforms and 1 offset,

their combinations are as follows:

</dd></dl>

</div>

</div>

Last updated on Mar 26, 2021.

Created using

<a href="http://sphinx-doc.org/">Sphinx</a> 3.2.1.

Doc version v3.4.0-2-gcb03754703.

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