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factory.mesh.rst

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mesh

.. autofunction:: k3d.factory.mesh


.. seealso::
    - :ref:`surface`

Examples

Basic

import k3d

vertices = [[1, 1, 1], [1, -1, -1], [-1, 1, -1], [-1, -1, 1]]
indices = [[0, 1, 2], [0, 2, 3], [0, 3, 1], [3, 2, 1]]

plt_tetra = k3d.mesh(vertices, indices,
                     colors=[0x32ff31, 0x37d3ff, 0xbc53ff, 0xffc700])

plot = k3d.plot()
plot += plt_tetra
plot.display()
.. k3d_plot ::
  :filename: plots/factory/mesh_basic_plot.py

Colormap

Attention!

color_map must be used along with attribute and color_range in order to work correctly.

import k3d
import numpy as np
from k3d.colormaps import matplotlib_color_maps
from matplotlib.tri import Triangulation

n_radii = 8
n_angles = 36

radii = np.linspace(0.125, 1.0, n_radii, dtype=np.float32)
angles = np.linspace(0, 2 * np.pi, n_angles, endpoint=False, dtype=np.float32)[..., np.newaxis]

x = np.append(np.float32(0), (radii * np.cos(angles)).flatten())
y = np.append(np.float32(0), (radii * np.sin(angles)).flatten())
z = np.sin(-x * y)

vertices = np.vstack([x, y, z]).T
indices = Triangulation(x, y).triangles.astype(np.uint32)

plt_mesh = k3d.mesh(vertices, indices,
                    color_map=matplotlib_color_maps.Jet,
                    attribute=z,
                    color_range=[-1.1, 2.01])

plot = k3d.plot()
plot += plt_mesh
plot.display()
.. k3d_plot ::
  :filename: plots/factory/mesh_colormap_plot.py