.. only:: html .. note:: :class: sphx-glr-download-link-note Click :ref:here  to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_mplot3d_pathpatch3d.py: ============================ Draw flat objects in 3D plot ============================ Demonstrate using pathpatch_2d_to_3d to 'draw' shapes and text on a 3D plot. .. image:: /gallery/mplot3d/images/sphx_glr_pathpatch3d_001.png :alt: pathpatch3d :class: sphx-glr-single-img .. code-block:: default import numpy as np import matplotlib.pyplot as plt from matplotlib.patches import Circle, PathPatch from matplotlib.text import TextPath from matplotlib.transforms import Affine2D import mpl_toolkits.mplot3d.art3d as art3d def text3d(ax, xyz, s, zdir="z", size=None, angle=0, usetex=False, **kwargs): """ Plots the string 's' on the axes 'ax', with position 'xyz', size 'size', and rotation angle 'angle'. 'zdir' gives the axis which is to be treated as the third dimension. usetex is a boolean indicating whether the string should be interpreted as latex or not. Any additional keyword arguments are passed on to transform_path. Note: zdir affects the interpretation of xyz. """ x, y, z = xyz if zdir == "y": xy1, z1 = (x, z), y elif zdir == "x": xy1, z1 = (y, z), x else: xy1, z1 = (x, y), z text_path = TextPath((0, 0), s, size=size, usetex=usetex) trans = Affine2D().rotate(angle).translate(xy1[0], xy1[1]) p1 = PathPatch(trans.transform_path(text_path), **kwargs) ax.add_patch(p1) art3d.pathpatch_2d_to_3d(p1, z=z1, zdir=zdir) fig = plt.figure() ax = fig.add_subplot(111, projection='3d') # Draw a circle on the x=0 'wall' p = Circle((5, 5), 3) ax.add_patch(p) art3d.pathpatch_2d_to_3d(p, z=0, zdir="x") # Manually label the axes text3d(ax, (4, -2, 0), "X-axis", zdir="z", size=.5, usetex=False, ec="none", fc="k") text3d(ax, (12, 4, 0), "Y-axis", zdir="z", size=.5, usetex=False, angle=np.pi / 2, ec="none", fc="k") text3d(ax, (12, 10, 4), "Z-axis", zdir="y", size=.5, usetex=False, angle=np.pi / 2, ec="none", fc="k") # Write a Latex formula on the z=0 'floor' text3d(ax, (1, 5, 0), r"$\displaystyle G_{\mu\nu} + \Lambda g_{\mu\nu} = " r"\frac{8\pi G}{c^4} T_{\mu\nu}$", zdir="z", size=1, usetex=True, ec="none", fc="k") ax.set_xlim(0, 10) ax.set_ylim(0, 10) ax.set_zlim(0, 10) plt.show() .. _sphx_glr_download_gallery_mplot3d_pathpatch3d.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-python :download:Download Python source code: pathpatch3d.py  .. container:: sphx-glr-download sphx-glr-download-jupyter :download:Download Jupyter notebook: pathpatch3d.ipynb  .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot Gallery generated by Sphinx-Gallery _