.. 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_voxels_numpy_logo.py: =============================== 3D voxel plot of the numpy logo =============================== Demonstrates using ``ax.voxels`` with uneven coordinates .. image:: /gallery/mplot3d/images/sphx_glr_voxels_numpy_logo_001.png :class: sphx-glr-single-img .. code-block:: python import matplotlib.pyplot as plt import numpy as np # This import registers the 3D projection, but is otherwise unused. from mpl_toolkits.mplot3d import Axes3D # noqa: F401 unused import def explode(data): size = np.array(data.shape)*2 data_e = np.zeros(size - 1, dtype=data.dtype) data_e[::2, ::2, ::2] = data return data_e # build up the numpy logo n_voxels = np.zeros((4, 3, 4), dtype=bool) n_voxels[0, 0, :] = True n_voxels[-1, 0, :] = True n_voxels[1, 0, 2] = True n_voxels[2, 0, 1] = True facecolors = np.where(n_voxels, '#FFD65DC0', '#7A88CCC0') edgecolors = np.where(n_voxels, '#BFAB6E', '#7D84A6') filled = np.ones(n_voxels.shape) # upscale the above voxel image, leaving gaps filled_2 = explode(filled) fcolors_2 = explode(facecolors) ecolors_2 = explode(edgecolors) # Shrink the gaps x, y, z = np.indices(np.array(filled_2.shape) + 1).astype(float) // 2 x[0::2, :, :] += 0.05 y[:, 0::2, :] += 0.05 z[:, :, 0::2] += 0.05 x[1::2, :, :] += 0.95 y[:, 1::2, :] += 0.95 z[:, :, 1::2] += 0.95 fig = plt.figure() ax = fig.gca(projection='3d') ax.voxels(x, y, z, filled_2, facecolors=fcolors_2, edgecolors=ecolors_2) plt.show() .. _sphx_glr_download_gallery_mplot3d_voxels_numpy_logo.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: voxels_numpy_logo.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: voxels_numpy_logo.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_