Pyvista based on vtk kernel cannot draw and display all edges of the mesh in vtk files.

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1

When I used Pyvista to display the mesh model in vtk file, I found that Pyvista based on vtk kernel cannot draw and display all edges of the mesh in vtk files.
Please help solve this problem. Many thanks.

fig3
fig32062×1604 335 KB

fig2
fig22058×1600 275 KB

fig1
fig11920×1497 211 KB

Here is my code:

import pyvista as pv

my_mesh = pv.read(“D:/mesh_file/test.vtk”)
plotter = pv.Plotter()
_ = plotter.add_mesh(my_mesh, color = ‘#BBFFFF’, style = ‘surface’, show_edges = True,
edge_color = ‘#EE8262’, line_width = 0.5, opacity = 1.0)
plotter.show()

The following link can get the vtk file.
https://github.com/pyvista/pyvista/issues/3738

System Information:
OS : Windows
CPU(s) : 20
Machine : AMD64
Architecture : 64bit
Environment : Python
GPU Vendor : Intel
GPU Renderer : Intel(R) Iris(R) Xe Graphics
GPU Version : 4.5.0 - Build 31.0.101.3616

Python 3.8.15 (default, Nov 21 2022, 10:47:13) [MSC v.1916 64 bit (AMD64)]
pyvista : 0.37.0
vtk : 9.2.2
numpy : 1.23.5
imageio : 2.23.0
scooby : 0.7.0
pooch : v1.6.0
matplotlib : 3.6.2
pyvistaqt : 0.9.0
PyQt5 : 5.15.2
meshio : 5.3.4

2

@banesullivan

3

I responded on the original PyVista issue.

1 Like
4

Now, I directly use the python API of vtk to display the model, but I still can’t solve this problem. How should I solve this problem?

Part of my code is as follows:

reader = vtk.vtkUnstructuredGridReader()
reader.SetFileName(mesh_file_name)
reader.Update()
output = reader.GetOutput()

self.mapper = vtk.vtkDataSetMapper()
self.mapper.SetInputData(output)
self.mapper.ScalarVisibilityOff()

self.actor = vtk.vtkActor()
self.actor.SetMapper(self.mapper)
self.actor.GetProperty().EdgeVisibilityOn()
self.actor.GetProperty().SetLineWidth(2.0)
surface_color = [51, 161, 201]
surface_color = [x/255.0 for x in surface_color]
self.actor.GetProperty().SetColor(surface_color)

Many Thanks!