Skip to main content

Python VTK on M2 macbook air

I am writing this code for simulation of earths magnetic field:

import numpy as np
import matplotlib.pyplot as plt
import magpylib as magpy
import pyvista as pv

ts = np.linspace(-8,8, 150)
t = np.linspace(-6,6, 150)
axis = np.c_[2*np.cos(ts*2*np.pi), 2*np.sin(ts*2*np.pi), ts]
aux = np.c_[2*np.cos(ts*2*np.pi), 2*np.sin(ts*2*np.pi), t]
def make_coil(pos, vertices):
    coil = magpy.current.Line(
    current = 100,
    vertices = vertices,
    position= pos,
    style_color="green",
    )
    return coil

theta = np.sqrt(2)/2
r = 4
coil1 = make_coil((0,0,0), axis)
coil2 = make_coil((r*1,0,0), aux)
coil3 = make_coil((r*theta,r*theta,0), aux)
coil4 = make_coil((0,1*r,0), aux)
coil5 = make_coil((-r*theta,r*theta,0), aux)
coil6 = make_coil((-r*1,0,0), aux)
coil7 = make_coil((-r*theta,-r*theta,0), aux)
coil8 = make_coil((0,-r*1,0), aux)
coil9 = make_coil((r*theta,-r*theta,0), aux)

coil = coil1 + coil2 + coil3 + coil4 + coil5 + coil6 + coil7 + coil8 + coil9 
coil.show()



grid = pv.UniformGrid(
    dimensions=(41, 41, 41),
    spacing=(2, 2, 2),
    origin=(-40, -40, -40),
)

# compute B-field and add as data to grid
grid["B"] = coil.getB(grid.points)
# compute field lines
seed = pv.Disc(inner=1, outer=5.2, r_res=3, c_res=12)
strl = grid.streamlines_from_source(
    seed,
    vectors='B',
    max_time=180,
    initial_step_length=0.01,
    integration_direction='both',
)

# create plotting scene
pl = pv.Plotter()

# add field lines and legend to scene
legend_args = {
    'title': 'B [mT]',
    'title_font_size': 20,
    'color': 'black',
    'position_y': 0.25,
    'vertical': True,
}

# draw coils
magpy.show(coil, color="orange", canvas=pl, backend='pyvista')

# add streamlines
pl.add_mesh(
    strl.tube(radius=.2),
    cmap="bwr",
    scalar_bar_args=legend_args,
)
# display scene
pl.camera.position=(160, 10, -10)
pl.set_background("white")
pl.show()

and I get this error message

danieltran@eduroam-193-157-168-102 OneDrive-UniversitetetiOslo % /usr/local/bin/python3 "/Users/danieltran/Library/CloudStorage/OneDrive-UniversitetetiOslo/H22/FYS1120/Comp Essay/d
ouble_solenoids.py"
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pyvista/_vtk.py", line 547, in <module>
    from vtk.vtkCommonKitPython import buffer_shared, vtkAbstractArray, vtkWeakReference
ModuleNotFoundError: No module named 'vtk'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/danieltran/Library/CloudStorage/OneDrive-UniversitetetiOslo/H22/FYS1120/Comp Essay/double_solenoids.py", line 4, in <module>
    import pyvista as pv
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pyvista/__init__.py", line 12, in <module>
    from pyvista.plotting import *
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pyvista/plotting/__init__.py", line 4, in <module>
    from .charts import Chart2D, ChartMPL, ChartBox, ChartPie
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pyvista/plotting/charts.py", line 13, in <module>
    from pyvista import _vtk
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pyvista/_vtk.py", line 549, in <module>
    from vtk.vtkCommonCore import buffer_shared, vtkAbstractArray, vtkWeakReference
ModuleNotFoundError: No module named 'vtk'.


source https://stackoverflow.com/questions/74376018/python-vtk-on-m2-macbook-air
Labels:

Comments

Post a Comment

Popular posts from this blog

Where and how is this Laravel kernel constructor called? [closed]

Where and how is this Laravel kernel constructor called? public fucntion __construct(Application $app, $Router $roouter) { } I have read the documentation and some online tutorial but I can find any clear explanation. I am learning Laravel and I am wondering where does this kernel constructor receives its arguments from. "POSTMOTERM" CLARIFICATION: Here is more clarity.I have checked the boostrap/app.php and it is only used for boostrapping the interfaces into the container class. What is not clear to me is where and how the Kernel class is instatiated and the arguments passed to the object calling the constructor.Something similar to; obj = new kernel(arg1,arg2) or, is the framework using some magic functions somewhere? Special gratitude to those who burn their eyeballs and brain cells on this trivia before it goes into a full blown menopause alias "MARKED AS DUPLICATE". To some of the itchy-finger keyboard warriors, a.k.a The mods,because I believe in th...
Post a Comment
Read more

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...
Post a Comment
Read more

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype
Post a Comment
Read more