This page was generated from docs/source/examples/triplot.ipynb.

Plotting triangulated surfaces#

[14]:

import numpy as np
from sigmaepsilon.mesh.grid import grid
from sigmaepsilon.mesh.utils.topology.tr import Q4_to_T3
from sigmaepsilon.mesh.trimesh import triangulate
from sigmaepsilon.plotting.mpl import triplot

gridparams = {
            'size' : (1200, 600),
            'shape' : (30, 15),
            'eshape' : (2, 2),
            'origo' : (0, 0),
            'start' : 0
        }
coordsQ4, topoQ4 = grid(**gridparams)
points, triangles = Q4_to_T3(coordsQ4, topoQ4, path='grid')
triobj = triangulate(points=points[:, :2], triangles=triangles)[-1]
triplot(triobj)

[14]:

[<matplotlib.lines.Line2D at 0x259949c0b50>,
 <matplotlib.lines.Line2D at 0x259949c0e20>]

[15]:

data = np.random.rand(len(triangles))
triplot(triobj, data=data)

[15]:

[<matplotlib.collections.PolyCollection at 0x259949fd2e0>]

[16]:

triplot(triobj, hinton=True, data=data)

[16]:

[<sigmaepsilon.plotting.mpl.triplot.TriPatchCollection at 0x25990ccefd0>]

[17]:

data = np.random.rand(len(points))
triplot(triobj, data=data, cmap='bwr')

[17]:

[<matplotlib.collections.PolyCollection at 0x25994c153a0>]