#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Plot 3D mesh."""
import pygimli as pg
pyvista = pg.optImport("pyvista", requiredFor="properly visualize 3D data")
trame = pg.optImport(
"trame",
requiredFor="use interactive 3D visualizations within Jupyter notebooks",
)
if pyvista is None:
view3Dcallback = "showMesh3DFallback"
else:
view3Dcallback = "showMesh3DVista"
vers_users = pyvista.__version__
vers_userf = float(pyvista.__version__[::-1].replace(".", "", 1)[::-1])
vers_needs = "0.34.0"
vers_needf = 0.340
if vers_userf < vers_needf:
pg.warn("Please consider updating PyVista to at least {}".format(vers_needs))
from .draw import drawModel
[docs]
def showMesh3D(mesh, data, **kwargs):
"""Calling the defined function to show the 3D object."""
if pg.rc["view3D"] == "fallback":
return showMesh3DFallback(mesh, data, **kwargs)
return globals()[view3Dcallback](mesh, data, **kwargs)
def showMesh3DFallback(mesh, data, **kwargs):
"""Plot the 3D object sketchy."""
ax = kwargs.pop("ax", None)
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
if ax is None or not isinstance(ax, Axes3D):
fig = plt.figure()
ax = fig.add_subplot(projection='3d', proj_type="persp")
#ax = fig.add_subplot(projection='3d', proj_type="ortho")
if mesh.boundaryCount() > 0:
x, y, tri, z, dataIndex = pg.viewer.mpl.createTriangles(mesh)
ax.plot_trisurf(x, y, tri, z)
else:
if mesh.nodeCount() < 1e4:
x = pg.x(mesh.positions())
y = pg.y(mesh.positions())
z = pg.z(mesh.positions())
ax.scatter(x, y, z, "ko")
ax.set_title("Fallback, install pyvista for proper 3D visualization")
return ax, None
def showMesh3DVista(mesh, data=None, **kwargs):
"""Make use of the actual 3D visualization tool kit.
Parameters
----------
data: pg.Vector or np.ndarray
Dictionary of cell values, sorted by key. The values need to be
numpy arrays.
Returns
-------
plotter: pyvista.Plotter
The plotter from pyvista.
gui: Show3D [None]
The small gui based on pyvista. Note that this is returned as 'None'
if gui is passed as 'False'.
Note
----
Not having PyQt5 installed results in displaying the first key
(and values) from the dictionary.
"""
# for compatibility remove show kwargs that are not needed
kwargs.pop("figsize", False)
hold = kwargs.pop("hold", False)
cMap = kwargs.pop("cMap", "viridis")
notebook = kwargs.pop("notebook", pg.isNotebook())
# For sphinx builds and non-interactive agg backend
if not notebook and not pg.viewer.mpl.isInteractive():
notebook = False
kwargs["backend"] = None
gui = kwargs.pop("gui", False)
# GUI tmp deactivated
if gui:
pg.error("pyqt show gui currently not maintained")
return None
backend = kwargs.pop("backend", "client")
plotter = drawModel(
kwargs.pop("ax", None), mesh, data, notebook=notebook, cMap=cMap, **kwargs
)
# seems top be broken on some machines
if kwargs.get("aa", False):
plotter.enable_anti_aliasing()
if notebook is True:
# monkeypatch show of this plotter instance so we can use multiple
# backends and only plotter.show() .. whoever this needs.
plotter.__show = plotter.show
plotter.show = lambda *args, **kwargs: plotter.__show(
*args, jupyter_backend=backend, **kwargs
)
elif pg.viewer.mpl.isInteractive():
plotter.__show = plotter.show
plotter.show = (
lambda *args, **kwargs: plotter.__show(*args, **kwargs)
if pg.viewer.mpl.isInteractive() or pyvista.BUILDING_GALLERY
else False
)
else:
## on default skipp showing if forced, e.g., by test with show=False
plotter.__show = plotter.show
plotter.show = (
lambda *args, **kwargs: plotter.__show(*args, **kwargs)
if pg.rc['pyvista.backend'] is not None else False
)
if hold is False:
plotter.show()
# , None to keep compatibility
return plotter, None
