Python matplotlib.transforms.TransformedPath() Examples

The following are 18 code examples of matplotlib.transforms.TransformedPath(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module matplotlib.transforms , or try the search function .
Example #1
Source File: offsetbox.py    From Mastering-Elasticsearch-7.0 with MIT License 6 votes vote down vote up 
def draw(self, renderer):
        """
        Draw the children
        """

        dpi_cor = renderer.points_to_pixels(1.)
        self.dpi_transform.clear()
        self.dpi_transform.scale(dpi_cor, dpi_cor)

        # At this point the DrawingArea has a transform
        # to the display space so the path created is
        # good for clipping children
        tpath = mtransforms.TransformedPath(
            mpath.Path([[0, 0], [0, self.height],
                        [self.width, self.height],
                        [self.width, 0]]),
            self.get_transform())
        for c in self._children:
            if self._clip_children and not (c.clipbox or c._clippath):
                c.set_clip_path(tpath)
            c.draw(renderer)

        bbox_artist(self, renderer, fill=False, props=dict(pad=0.))
        self.stale = False
Example #2
Source File: test_transforms.py    From twitter-stock-recommendation with MIT License 6 votes vote down vote up 
def test_transformed_path():
    points = [(0, 0), (1, 0), (1, 1), (0, 1)]
    codes = [Path.MOVETO, Path.LINETO, Path.LINETO, Path.CLOSEPOLY]
    path = Path(points, codes)

    trans = mtransforms.Affine2D()
    trans_path = mtransforms.TransformedPath(path, trans)
    assert_allclose(trans_path.get_fully_transformed_path().vertices, points)

    # Changing the transform should change the result.
    r2 = 1 / np.sqrt(2)
    trans.rotate(np.pi / 4)
    assert_allclose(trans_path.get_fully_transformed_path().vertices,
                    [(0, 0), (r2, r2), (0, 2 * r2), (-r2, r2)],
                    atol=1e-15)

    # Changing the path does not change the result (it's cached).
    path.points = [(0, 0)] * 4
    assert_allclose(trans_path.get_fully_transformed_path().vertices,
                    [(0, 0), (r2, r2), (0, 2 * r2), (-r2, r2)],
                    atol=1e-15)
Example #3
Source File: test_axes.py    From twitter-stock-recommendation with MIT License 6 votes vote down vote up 
def test_imshow_clip():
    # As originally reported by Gellule Xg <gellule.xg@free.fr>

    # Create a NxN image
    N = 100
    (x, y) = np.indices((N, N))
    x -= N//2
    y -= N//2
    r = np.sqrt(x**2+y**2-x*y)

    # Create a contour plot at N/4 and extract both the clip path and transform
    fig, ax = plt.subplots()

    c = ax.contour(r, [N/4])
    x = c.collections[0]
    clipPath = x.get_paths()[0]
    clipTransform = x.get_transform()

    from matplotlib.transforms import TransformedPath
    clip_path = TransformedPath(clipPath, clipTransform)

    # Plot the image clipped by the contour
    ax.imshow(r, clip_path=clip_path)
Example #4
Source File: offsetbox.py    From twitter-stock-recommendation with MIT License 6 votes vote down vote up 
def draw(self, renderer):
        """
        Draw the children
        """

        dpi_cor = renderer.points_to_pixels(1.)
        self.dpi_transform.clear()
        self.dpi_transform.scale(dpi_cor, dpi_cor)

        # At this point the DrawingArea has a transform
        # to the display space so the path created is
        # good for clipping children
        tpath = mtransforms.TransformedPath(
            mpath.Path([[0, 0], [0, self.height],
                        [self.width, self.height],
                        [self.width, 0]]),
            self.get_transform())
        for c in self._children:
            if self._clip_children and not (c.clipbox or c._clippath):
                c.set_clip_path(tpath)
            c.draw(renderer)

        bbox_artist(self, renderer, fill=False, props=dict(pad=0.))
        self.stale = False
Example #5
Source File: offsetbox.py    From CogAlg with MIT License 6 votes vote down vote up 
def draw(self, renderer):
        """
        Draw the children
        """

        dpi_cor = renderer.points_to_pixels(1.)
        self.dpi_transform.clear()
        self.dpi_transform.scale(dpi_cor, dpi_cor)

        # At this point the DrawingArea has a transform
        # to the display space so the path created is
        # good for clipping children
        tpath = mtransforms.TransformedPath(
            mpath.Path([[0, 0], [0, self.height],
                        [self.width, self.height],
                        [self.width, 0]]),
            self.get_transform())
        for c in self._children:
            if self._clip_children and not (c.clipbox or c._clippath):
                c.set_clip_path(tpath)
            c.draw(renderer)

        bbox_artist(self, renderer, fill=False, props=dict(pad=0.))
        self.stale = False
Example #6
Source File: test_transforms.py    From coffeegrindsize with MIT License 6 votes vote down vote up 
def test_transformed_path():
    points = [(0, 0), (1, 0), (1, 1), (0, 1)]
    codes = [Path.MOVETO, Path.LINETO, Path.LINETO, Path.CLOSEPOLY]
    path = Path(points, codes)

    trans = mtransforms.Affine2D()
    trans_path = mtransforms.TransformedPath(path, trans)
    assert_allclose(trans_path.get_fully_transformed_path().vertices, points)

    # Changing the transform should change the result.
    r2 = 1 / np.sqrt(2)
    trans.rotate(np.pi / 4)
    assert_allclose(trans_path.get_fully_transformed_path().vertices,
                    [(0, 0), (r2, r2), (0, 2 * r2), (-r2, r2)],
                    atol=1e-15)

    # Changing the path does not change the result (it's cached).
    path.points = [(0, 0)] * 4
    assert_allclose(trans_path.get_fully_transformed_path().vertices,
                    [(0, 0), (r2, r2), (0, 2 * r2), (-r2, r2)],
                    atol=1e-15)
Example #7
Source File: test_axes.py    From coffeegrindsize with MIT License 6 votes vote down vote up 
def test_imshow_clip():
    # As originally reported by Gellule Xg <gellule.xg@free.fr>

    # Create a NxN image
    N = 100
    (x, y) = np.indices((N, N))
    x -= N//2
    y -= N//2
    r = np.sqrt(x**2+y**2-x*y)

    # Create a contour plot at N/4 and extract both the clip path and transform
    fig, ax = plt.subplots()

    c = ax.contour(r, [N/4])
    x = c.collections[0]
    clipPath = x.get_paths()[0]
    clipTransform = x.get_transform()

    from matplotlib.transforms import TransformedPath
    clip_path = TransformedPath(clipPath, clipTransform)

    # Plot the image clipped by the contour
    ax.imshow(r, clip_path=clip_path)
Example #8
Source File: offsetbox.py    From coffeegrindsize with MIT License 6 votes vote down vote up 
def draw(self, renderer):
        """
        Draw the children
        """

        dpi_cor = renderer.points_to_pixels(1.)
        self.dpi_transform.clear()
        self.dpi_transform.scale(dpi_cor, dpi_cor)

        # At this point the DrawingArea has a transform
        # to the display space so the path created is
        # good for clipping children
        tpath = mtransforms.TransformedPath(
            mpath.Path([[0, 0], [0, self.height],
                        [self.width, self.height],
                        [self.width, 0]]),
            self.get_transform())
        for c in self._children:
            if self._clip_children and not (c.clipbox or c._clippath):
                c.set_clip_path(tpath)
            c.draw(renderer)

        bbox_artist(self, renderer, fill=False, props=dict(pad=0.))
        self.stale = False
Example #9
Source File: test_axes.py    From ImageFusion with MIT License 6 votes vote down vote up 
def test_imshow_clip():
    # As originally reported by Gellule Xg <gellule.xg@free.fr>

    #Create a NxN image
    N = 100
    (x, y) = np.indices((N, N))
    x -= N//2
    y -= N//2
    r = np.sqrt(x**2+y**2-x*y)

    #Create a contour plot at N/4 and extract both the clip path and transform
    fig = plt.figure()
    ax = fig.add_subplot(111)

    c = ax.contour(r, [N/4])
    x = c.collections[0]
    clipPath = x.get_paths()[0]
    clipTransform = x.get_transform()

    from matplotlib.transforms import TransformedPath
    clip_path = TransformedPath(clipPath, clipTransform)

    #Plot the image clipped by the contour
    ax.imshow(r, clip_path=clip_path)
Example #10
Source File: test_transforms.py    From python3_ios with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def test_transformed_path():
    points = [(0, 0), (1, 0), (1, 1), (0, 1)]
    codes = [Path.MOVETO, Path.LINETO, Path.LINETO, Path.CLOSEPOLY]
    path = Path(points, codes)

    trans = mtransforms.Affine2D()
    trans_path = mtransforms.TransformedPath(path, trans)
    assert_allclose(trans_path.get_fully_transformed_path().vertices, points)

    # Changing the transform should change the result.
    r2 = 1 / np.sqrt(2)
    trans.rotate(np.pi / 4)
    assert_allclose(trans_path.get_fully_transformed_path().vertices,
                    [(0, 0), (r2, r2), (0, 2 * r2), (-r2, r2)],
                    atol=1e-15)

    # Changing the path does not change the result (it's cached).
    path.points = [(0, 0)] * 4
    assert_allclose(trans_path.get_fully_transformed_path().vertices,
                    [(0, 0), (r2, r2), (0, 2 * r2), (-r2, r2)],
                    atol=1e-15)
Example #11
Source File: test_axes.py    From python3_ios with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def test_imshow_clip():
    # As originally reported by Gellule Xg <gellule.xg@free.fr>

    # Create a NxN image
    N = 100
    (x, y) = np.indices((N, N))
    x -= N//2
    y -= N//2
    r = np.sqrt(x**2+y**2-x*y)

    # Create a contour plot at N/4 and extract both the clip path and transform
    fig, ax = plt.subplots()

    c = ax.contour(r, [N/4])
    x = c.collections[0]
    clipPath = x.get_paths()[0]
    clipTransform = x.get_transform()

    from matplotlib.transforms import TransformedPath
    clip_path = TransformedPath(clipPath, clipTransform)

    # Plot the image clipped by the contour
    ax.imshow(r, clip_path=clip_path)
Example #12
Source File: offsetbox.py    From python3_ios with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
def draw(self, renderer):
        """
        Draw the children
        """

        dpi_cor = renderer.points_to_pixels(1.)
        self.dpi_transform.clear()
        self.dpi_transform.scale(dpi_cor, dpi_cor)

        # At this point the DrawingArea has a transform
        # to the display space so the path created is
        # good for clipping children
        tpath = mtransforms.TransformedPath(
            mpath.Path([[0, 0], [0, self.height],
                        [self.width, self.height],
                        [self.width, 0]]),
            self.get_transform())
        for c in self._children:
            if self._clip_children and not (c.clipbox or c._clippath):
                c.set_clip_path(tpath)
            c.draw(renderer)

        bbox_artist(self, renderer, fill=False, props=dict(pad=0.))
        self.stale = False
Example #13
Source File: offsetbox.py    From GraphicDesignPatternByPython with MIT License 6 votes vote down vote up 
def draw(self, renderer):
        """
        Draw the children
        """

        dpi_cor = renderer.points_to_pixels(1.)
        self.dpi_transform.clear()
        self.dpi_transform.scale(dpi_cor, dpi_cor)

        # At this point the DrawingArea has a transform
        # to the display space so the path created is
        # good for clipping children
        tpath = mtransforms.TransformedPath(
            mpath.Path([[0, 0], [0, self.height],
                        [self.width, self.height],
                        [self.width, 0]]),
            self.get_transform())
        for c in self._children:
            if self._clip_children and not (c.clipbox or c._clippath):
                c.set_clip_path(tpath)
            c.draw(renderer)

        bbox_artist(self, renderer, fill=False, props=dict(pad=0.))
        self.stale = False
Example #14
Source File: test_axes.py    From neural-network-animation with MIT License 6 votes vote down vote up 
def test_imshow_clip():
    # As originally reported by Gellule Xg <gellule.xg@free.fr>

    #Create a NxN image
    N = 100
    (x, y) = np.indices((N, N))
    x -= N//2
    y -= N//2
    r = np.sqrt(x**2+y**2-x*y)

    #Create a contour plot at N/4 and extract both the clip path and transform
    fig = plt.figure()
    ax = fig.add_subplot(111)

    c = ax.contour(r, [N/4])
    x = c.collections[0]
    clipPath = x.get_paths()[0]
    clipTransform = x.get_transform()

    from matplotlib.transforms import TransformedPath
    clip_path = TransformedPath(clipPath, clipTransform)

    #Plot the image clipped by the contour
    ax.imshow(r, clip_path=clip_path)
Example #15
Source File: backend_bases.py    From ImageFusion with MIT License 5 votes vote down vote up 
def set_clip_path(self, path):
        """
        Set the clip path and transformation.  Path should be a
        :class:`~matplotlib.transforms.TransformedPath` instance.
        """
        assert path is None or isinstance(path, transforms.TransformedPath)
        self._clippath = path
Example #16
Source File: backend_bases.py    From neural-network-animation with MIT License 5 votes vote down vote up 
def set_clip_path(self, path):
        """
        Set the clip path and transformation.  Path should be a
        :class:`~matplotlib.transforms.TransformedPath` instance.
        """
        assert path is None or isinstance(path, transforms.TransformedPath)
        self._clippath = path
Example #17
Source File: backend_bases.py    From matplotlib-4-abaqus with MIT License 5 votes vote down vote up 
def set_clip_path(self, path):
        """
        Set the clip path and transformation.  Path should be a
        :class:`~matplotlib.transforms.TransformedPath` instance.
        """
        assert path is None or isinstance(path, transforms.TransformedPath)
        self._clippath = path
Example #18
Source File: backend_bases.py    From Computable with MIT License 5 votes vote down vote up 
def set_clip_path(self, path):
        """
        Set the clip path and transformation.  Path should be a
        :class:`~matplotlib.transforms.TransformedPath` instance.
        """
        assert path is None or isinstance(path, transforms.TransformedPath)
        self._clippath = path