How to this convert matlab code to python code?

%clear all previous commands
clear all
close all
clc

%variable you can change 
SizeL = 20; 
Def = 160;
SFact = (SizeL/2)/pi;
A = SFact*pi;
D = A/Def;
[X,Y,Z] = meshgrid(-A:D:A);
OBJ = sin (Y/SFact) + cos (Y/SFact).* sin (Z/SFact)+ cos (Z/SFact).* sin (X/SFact)+ (0);
T = 0.5;
OBJ = ((OBJ-T).*(OBJ+T));
[F1,V1] = isosurface (X,Y,Z,OBJ,0);
[F2,V2] = isocaps(X,Y,Z,OBJ,0,'below');
F3 = [F1;F2+length(V1(:,1))];
V3 = [V1;V2];
P = patch ('Vertices',V3, 'Faces',F3,'FaceColor','red','EdgeColor','none');
view(3)
camlight
stlWrite(['J:\lattice\MATLAB\MATLAB\Gyroid-network' num2str(1) '.stl'],F3,V3);
axis equal

Answer 1

[Vilém Frynta]

This requires knowledge of both languages. If you don't know Python, and have nobody to help you, you can try AI.

I've prompted your request to an AI, and this was the result. Keep in mind that this might not work because of some silly errors. It will need to be adjusted, which means you need to Google the commands used etc.

import numpy as np

from mpl_toolkits.mplot3d.art3d import Poly3DCollection

from stl import mesh

# clear all previous commands

np.random.seed(0)

np.set_printoptions(precision=3, suppress=True)

# variable you can change

SizeL = 20

Def = 160

SFact = (SizeL/2)/np.pi

A = SFact*np.pi

D = A/Def

X,Y,Z = np.meshgrid(np.arange(-A, A+D, D),

np.arange(-A, A+D, D),

np.arange(-A, A+D, D))

OBJ = np.sin(Y/SFact) + np.cos(Y/SFact) * np.sin(Z/SFact) \

+ np.cos(Z/SFact) * np.sin(X/SFact) + 0

T = 0.5

OBJ = ((OBJ-T)*(OBJ+T))

iso_surface = np.isosurface(OBJ, level=0)

F1, V1 = iso_surface.triangles, iso_surface.vertices

iso_caps = np.isocaps(OBJ, level=0, direction='below')

F2, V2 = iso_caps.triangles, iso_caps.vertices

F3 = np.vstack((F1, F2 + len(V1)))

V3 = np.vstack((V1, V2))

fig = plt.figure()

ax = fig.add_subplot(111, projection='3d')

mesh = Poly3DCollection(V3[F3])

mesh.set_facecolor('red')

ax.add_collection3d(mesh)

ax.set_xlabel('X')

ax.set_ylabel('Y')

ax.set_zlabel('Z')

ax.set_box_aspect([1,1,1])

ax.view_init(30, 30)

plt.show()

mesh = mesh.Mesh(np.zeros(F3.shape[0], dtype=mesh.Mesh.dtype))

for i, f in enumerate(F3):

for j in range(3):

mesh.vectors[i][j] = V3[f[j], :]

mesh.save('Gyroid-network1.stl')

Hope I helped.