Hello Thanks for the great work. I tried to install pymadcad using pip install pymadcad but unfortunately I faced the following error:

Running setup.py install for pymadcad ... error
    ERROR: Command errored out with exit status 1:
     command: 'c:\users\faez\pycharmprojects\pyshop\venv\scripts\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Use
rs\\Faez\\AppData\\Local\\Temp\\pip-install-ul46jryj\\pymadcad_caf2118f1998466b8c8789fadbc9af8c\\setup.py'"'"'; __file__='"'"'C:\\Users\\Faez\\AppData\\
Local\\Temp\\pip-install-ul46jryj\\pymadcad_caf2118f1998466b8c8789fadbc9af8c\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.
path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();
exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\Faez\AppData\Local\Temp\pip-record-fkz6pgb4\install-record.txt' --single-versi
on-externally-managed --compile --install-headers 'c:\users\faez\pycharmprojects\pyshop\venv\include\site\python3.8\pymadcad'
         cwd: C:\Users\Faez\AppData\Local\Temp\pip-install-ul46jryj\pymadcad_caf2118f1998466b8c8789fadbc9af8c\
    Complete output (77 lines):
    running install
    running build
    running build_py
    creating build
    creating build\lib.win-amd64-3.8
    creating build\lib.win-amd64-3.8\madcad
    copying madcad\asso.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\blending.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\boolean.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\common.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\constraints.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\cut.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\displays.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\gear.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\generation.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\hashing.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\io.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\joints.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\kinematic.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\mathutils.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\mesh.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\nprint.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\primitives.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\rendering.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\reverse.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\scheme.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\selection.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\settings.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\text.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\triangulation.py -> build\lib.win-amd64-3.8\madcad
    copying madcad\__init__.py -> build\lib.win-amd64-3.8\madcad
    creating build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\annotation.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\axis.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\font.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\ghost.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\glowenvelope.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\ident.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\pointhalo.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\scheme-ghost.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\scheme-ident.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\scheme-uniform.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\simple-solid.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\solid-old.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\solid.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\uniformcolor.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\viewgrid.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\wire.frag -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\annotation.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\axis-ident.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\axis.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\font.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\glowenvelope.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\object-ident.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\object-item-ident.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\pointhalo-ident.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\pointhalo.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\scheme.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\solid.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\uniformcolor.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\viewgrid.vert -> build\lib.win-amd64-3.8\madcad\shaders
    copying madcad\shaders\wire.vert -> build\lib.win-amd64-3.8\madcad\shaders
    creating build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\point.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox-blue-dense.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox-blue.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox-test.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox-violet-dense.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox-violet-saturated.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox-violet.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox-white.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\textures\skybox.png -> build\lib.win-amd64-3.8\madcad\textures
    copying madcad\core.pyx -> build\lib.win-amd64-3.8\madcad
    copying madcad\core.c -> build\lib.win-amd64-3.8\madcad
    running build_ext
    building 'madcad.core' extension
    error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-buil
d-tools/
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\faez\pycharmprojects\pyshop\venv\scripts\python.exe' -u -c 'import io, os, sys, setuptools, tok
enize; sys.argv[0] = '"'"'C:\\Users\\Faez\\AppData\\Local\\Temp\\pip-install-ul46jryj\\pymadcad_caf2118f1998466b8c8789fadbc9af8c\\setup.py'"'"'; __file_
_='"'"'C:\\Users\\Faez\\AppData\\Local\\Temp\\pip-install-ul46jryj\\pymadcad_caf2118f1998466b8c8789fadbc9af8c\\setup.py'"'"';f = getattr(tokenize, '"'"'
open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r
\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\Faez\AppData\Local\Temp\pip-record-fkz6pgb4\i
nstall-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\faez\pycharmprojects\pyshop\venv\include\site\python3.8\pym
adcad' Check the logs for full command output.

How can I resolve this issue. Thank you so much

I have installed the module on my pc (Windows 10 x64 - Python 3.10) and I tried to run the Sample that I found on the main page of the GitHub repository, but when I tray to run it I get this error:

unsupported operand type(s) for +: 'NoneType' and 'str'

What could it be?

Hello to Jimy and the community, thank you for the hard work !

For a project, we need to compute the union of n Meshes. The user can select 2 meshes or more and we need to "merge" them in only one Mesh. These meshes are imported via an STL file. We use madcad.read() to import them in the scene :

def load_stl(self, filename):
        _mesh_stl = madcad.read(filename)
        _mesh_stl.mergeclose()
[...]

We are then using the function madcad.union() to achieve this fusion, in this way :

def merge_meshes(a_key, b_key):
        self.shapes3d[a_key].finish()
        self.shapes3d[b_key].finish()
        _union = madcad.union(
            self.shapes3d[a_key],
            self.shapes3d[b_key])
        _union.finish()

In some cases, it does work pretty well : when the shapes are simple especially. It is, for example, easy to compute these unions of meshes to achieve this "complex" mesh : For this mesh, we used a tube and a sphere.

But now let's use a slightly more complex shape to replace the sphere. When trying to compute the fusion with a tube... (Moving the new shape to have an intersection, unless it simply doesn't work) We get an error :

Traceback (most recent call last):
  File "c:\Users\yarkane\source\repos\project\model\view_3d.py", line 324, in merge_list_meshes
    _union_key = self.merge_meshes(_union_key, _key_b, keep_other_items)
  File "c:\Users\yarkane\source\repos\project\model\view_3d.py", line 294, in merge_meshes
    _union = madcad.union(
  File "C:\Users\yarkane\source\repos\project\lib\site-packages\madcad\boolean.py", line 608, in union
    return boolean(a,b, (False,False))
  File "C:\Users\yarkane\source\repos\project\lib\site-packages\madcad\boolean.py", line 602, in boolean
    return op(a, b, sides, prec)
  File "C:\Users\yarkane\source\repos\project\lib\site-packages\madcad\boolean.py", line 248, in boolean_mesh
    mc2 = pierce_mesh(m2, m1, selector[1], prec)
  File "C:\Users\yarkane\source\repos\project\lib\site-packages\madcad\boolean.py", line 164, in pierce_mesh
    m1, frontier = cut_mesh(m1, m2, prec)
  File "C:\Users\yarkane\source\repos\project\lib\site-packages\madcad\boolean.py", line 145, in cut_mesh
    flat = triangulation.triangulation_closest(segts, normal)
  File "C:\Users\yarkane\source\repos\project\lib\site-packages\madcad\triangulation.py", line 814, in triangulation_closest
    result += triangulation_outline(loop, z)
  File "C:\Users\yarkane\source\repos\project\lib\site-packages\madcad\triangulation.py", line 289, in triangulation_outline
    raise TriangulationError("no more feasible triangles (algorithm failure or bad input outline)", [outline.indices[i] for i in hole])
madcad.triangulation.TriangulationError: ('no more feasible triangles (algorithm failure or bad input outline)', [109, 87, 100])

I guess this is because boolean operations are very sensible, and the meshes too complex. Is there at least a way to "simplify" the mesh ? For example, we also got TriangulationErrors when trying to extrude from polygons that were quite "complex", and we managed to fix the issue by calling an opencv function to "smooth" the polygon. Maybe there is a way for this 3D operation to smooth the meshes ?

Anyway, we will continue to dig on this topic. Thanks for the hard work and all the help you could give ! :)

from madcad import * from madcad.io import * from madcad.generation import * print("runing here ") surface=read("data/aa.stl") print("runing here 0") surface = thicken(surface,0.1 ,0.5) print("runing here 1") write(surface, 'data/A12.stl') print("runing here 2") show([surface])

python thickentest.py runing here runing here 0

that mean I can't run thicken(surface,0.1 ,0.5) . the STL file is fine. I can open it on other software

Your work is quite useful and convenient for my research. But I have a trouble now, because of some unknown problem I can only install v0.10.2 at most. If I have a set of n*3 numpy arrays, how can I easily convert them to the format required by faces so that I can construct a mesh by myself?

Hi, I've been trying to compute boolean operations between two meshes, one of which has been imported from outside and read by "madcad.read" command and the other one generated through the "madcad.brick" , but I got this type of error: "Process finished with exit code -1073741819 (0xC0000005)".
Does anyone have any suggestions on how to cope with this problem? Thanks a lot in advance

Hi,

I just installed pymadcad and going my first steps and I cant figure out how the boolean functions are supposed to work. The closest I have come to my expected result was with the following code:

  m1 = madcad.brick(width=madcad.vec3(2))
  m2 = m1.transform(madcad.vec3(1, -0.5, 1))
  print(m1)
  print(m2)
  m3 = madcad.boolean.intersectwith(m1, m2)
  print(madcad.Mesh(m3))

Am I using it wrong?

the corresponding output was the following:

Mesh(
  points= [dvec3(            1,           -1,           -1 ),
                      ...
           dvec3(           -1,            1,           -1 )],
  faces=  [(0, 1, 2),
           ...,
           (4, 0, 3),
           (4, 3, 7)],
  tracks= [0,
           0,
           1,
             ...
           5,
           5],
  groups= [None,
           None,
           None,
           None,
           None,
           None],
  options= {})
Mesh(
  points= [dvec3(            2,         -1.5,            0 ),
           dvec3(            2,         -1.5,            2 ),
           dvec3(            0,         -1.5,            2 ),
           dvec3(            0,         -1.5,            0 ),
           dvec3(            2,          0.5,            0 ),
           dvec3(            2,          0.5,            2 ),
           dvec3(            0,          0.5,            2 ),
           dvec3(            0,          0.5,            0 )],
  faces=  [(0, 1, 2),
           (0, 2, 3),
           ...
           (4, 3, 7)],
  tracks= [0,
           0,
           1,
           ...
           5,
           5],
  groups= [None,
           None,
           None,
           None,
           None,
           None],
  options= {})
Mesh(
  points= [((8, 9), 9),
           ((10, 9), 10),
           ((15, 13), 2),
           ((10, 13), 10),
           ((15, 17), 2),
           ((8, 17), 8)],
  faces=  [],
  tracks= [],
  groups= [],
  options= {})

Thanks a lot for in advance and for doing this project in general. It sounds really promising

Lukas

Hi,

As developer and someone who wants to contribute to this project I am missing a ".gitignore" file.

Without the .gitignore file i do not know which files should be excluded included in future pull requests.

Hello, I was trying some functions to make a part.

madcad version 0.7

Here is my code:

from madcad import *

circle1 = Circle((vec3(0,0,0),vec3(0,0,1)),5)
circle2 = Circle((vec3(0,0,0),vec3(0,0,1)),20)
z = blendpair(circle1, circle2, tangents = "straight")
z = extrusion(vec3(0,0,10), z)
show([z])

The following image is the result:

The hole is not empty and there are some strange lines near the central circle as you can see. Maybe is my code wrong ?

Hey there !

I guess I'm not using the function correctly... But I can't manage to make this work. Sorry if this is a dumb question !

In the scheme module, you implemented many useful note functions including "note_angle" : https://pymadcad.readthedocs.io/en/latest/reference/scheme.html#madcad.scheme.note_angle

I try to use it to make the user create angles by clicking:

<At each click on the 3D scene with the angle notation tool:>
               if self.first_point is None:
                    self.first_point = self.ptat(pos)
                elif self.second_point is None:
                    self.second_point = self.ptat(pos)

                    # Display the "AB" segment
                    measure_keys = self.make_measure(self.first_point, self.second_point)
                else:
                    _third_point = self.ptat(pos)

                    # display the "BC" segment
                    measure_keys = self.make_measure(self.second_point, _third_point)
                    
                    # Compute the angle and display it
                    a1 = madcad.Axis(self.second_point, self.first_point)
                    a2 = madcad.Axis(self.second_point, _third_point)
                    note_angle = madcad.note_angle(a1, a2)
                    note_key = self.scene.add(note_angle)

The "note_angle" function renders me something like that :

I can't show it but it seems the measure indicates "81°" which is... not that far, but I am not sure about this value neither.

Do you have any tip about what I may be doing wrong ?

Thanks a lot (again) ! :)

Have a good day !

This should probably be s = 0.0

https://github.com/jimy-byerley/pymadcad/blob/029a859af9b97792c3e033b0d0a87c8525531dae/madcad/mesh/mesh.py#L401

The only thing added to it is a determinant, which is a scalar, not a vec3. Also, this function could just use a return sum(...).

Hello,

I've been trying to get the module installed on a Mac OS m-1. I guess a few things here.

First, python is currently miniconda for me [when running which python, the top of the list is conda].

I tried installing using pip with a non condo bistro, and it has the following issue with PyQt5: AttributeError: module 'sipbuild.api' has no attribute 'prepare_metadata_f

I tried updating pip to the latest and retried, no go. An article on the net shows us how to do this with a rosetta2 terminal session, still no go.

So I tried getting into the condo environment with: Honda activate tf (tf being my environment) and ran pip install --upgrade pip

All my condo packages got upgraded, and in there PyQt5 is available.

Finally, running pip install pymadcad after having installed all dependencies, it's stuck at: Using cached PyQt5-5.15.7.tar.gz (3.2 MB) Installing build dependencies ... done Getting requirements to build wheel ... done Preparing metadata (pyproject.toml) ... -

It's been stuck there for over 10 minutes now so I expect it to be an issue.

Anyone successfully installed pyMADCAD on a Mac OS m-1?

Added a shell for the convenience of nixos users. This file will be helpfull for nixos user who just wants use pymadcad and for those who want to contribute.

resolves #59

hi

As nixos user who wants to use this package and contribute to i need an install instruction.

Since nixos is linux distro, but very different from the most common distros the "pip install" instruction installation will be insufficient for a nixos system.

Currently, a bevel() works on any double-sided points of a Web and a Wire. However Wire's extremities might be considered double-sided points as well when Wire.closed = True and bevel() currently does not consider that.

from madcad import *

corner = 0   # index 0 in the wire is not accepted, nor -1,  any other place is fine

outline = regon(Axis(O,Z), 1, 5)
bevel(outline, [corner], ('width', 0.3))

show([ outline ])

Traceback (most recent call last):
  File "/tmp/test.py", line 4, in <module>
    bevel(outline, [0], ('width', 0.3))
  File "/usr/lib/python3.8/functools.py", line 875, in wrapper
    return dispatch(args[0].__class__)(*args, **kw)
  File "/home/jimy/.local/lib/python3.8/site-packages/madcad/cut.py", line 939, in wire_bevel
    cuts = set(wire_multicut(wire, points, cutter))
  File "/home/jimy/.local/lib/python3.8/site-packages/madcad/cut.py", line 890, in wire_multicut
    raise MeshError('a chamfer cannot have only one side')
madcad.mesh.container.MeshError: a chamfer cannot have only one side

with corner = 1 we get the expected behavior

Hi

Im been testing boolean operations, to see if i can use this lib for my next project.

I set up my test to avoid coplanar faces between the base mesh and the tool mesh, but i still ran into issues :-(

Depending the resolution i choose when generating RandomHills, The boolean opeations will sometimes create mesh with some anomalies. When run my test case: boolean op starts fail on randomhills with 30x30 resoultion

what im trying to diff

The anomalies

At first glance the result seems fine but the mesh is no longer a closed envelope. And with when looking carefully at the mesh, there is a long edge that should be divided more.

code:

import madcad as cad
from madcad import dvec3, Axis

import pyvista as pv
import numpy as np


def poly2mad(poly: pv.PolyData) -> cad.Mesh:
    """
    Helper to convert pyvista.PolyData to madcad
    """
    assert poly.n_faces > 0
    tri = poly.triangulate()  # avoid mutation and make all faces tri
    faces = tri.faces.reshape((-1, 4))[:, 1:].tolist()
    points = tri.points.tolist()

    mesh = cad.Mesh(points, faces)
    mesh.check()
    assert mesh.isvalid()
    assert mesh.issurface()
    return mesh


def mad2poly(mesh: cad.Mesh) -> pv.PolyData:
    """
    helper to convert madcad.Mesh to pyvista.PolyData
    """
    face_arr = np.array([tuple(v) for v in mesh.faces])
    faces = np.pad(
        face_arr,
        pad_width=((0, 0), (1, 0)),
        constant_values=3,
    ).ravel()

    points = np.array([tuple(v) for v in mesh.points])

    poly = pv.PolyData(points, faces)
    return poly


def randsurf(res=30, seed=1, **kwargs) -> cad.Mesh:
    """
    Creates a surface with random hills
    """
    poly = pv.ParametricRandomHills(
        u_res=res, v_res=res, w_res=res, randomseed=seed, **kwargs
    )
    return poly2mad(poly)


def inspect(mesh: cad.Mesh, **kwargs):
    poly = mad2poly(mesh)
    edges = poly.extract_feature_edges(
        feature_edges=False, non_manifold_edges=False, manifold_edges=False
    )
    pmesh = pv.PolyData(edges.points)
    p = pv.Plotter()
    p.add_mesh(poly)
    p.add_mesh(edges, color="red", line_width=2)
    p.add_mesh(pmesh, color="blue", point_size=9.0)
    p.show(**kwargs)
    print(poly)
    print("poly n open edges", poly.n_open_edges)
    print("poly is manifold", poly.is_manifold)
    print("diff1 is envelope?", mesh.isenvelope())


def test_boolean(res=30, dbg=False):
    """
    Test boolean operations robustness with a operations on a random generated Mesh
    """
    surf1 = randsurf(res=res, seed=1)
    axis1 = Axis(dvec3(0, 10, -1), dvec3(0, 0, 1))
    plane1 = cad.square(axis1, 20)
    ex1 = cad.extrusion(dvec3(0, 0, -10), surf1)

    assert ex1.isvalid()
    assert ex1.issurface()
    assert ex1.isenvelope()
    if dbg:
        cad.show([ex1, plane1])

    diff1 = cad.difference(ex1, plane1)
    if dbg:
        cad.show([diff1])
        inspect(diff1, title=f"Boolean diff with RandomHills resolution {res} * {res}")

    assert diff1.isvalid()
    assert diff1.issurface()
    assert diff1.isenvelope()


if __name__ == "__main__":
    # booleans work on low res
    for n in range(5, 55, 5):

        try:
            test_boolean(res=n)
            print(f"resolution: {n} worked")
        except AssertionError:
            test_boolean(res=n, dbg=True)  # set dbg to inspect what is going on
            print(f"resolution: {n} failed")

Hi,

Is there a known issue using pymadcad on MacOsX? I'm trying to run an example from your "examples" folder and I receive the following errors:

qt.qpa.openglcontext: Could not create NSOpenGLContext with shared context, falling back to unshared context.
Traceback (most recent call last):
  File "/Users/jeromegout/dev/david/implantology/.venv/lib/python3.9/site-packages/madcad/rendering.py", line 1099, in paintGL
    self.render()
  File "/Users/jeromegout/dev/david/implantology/.venv/lib/python3.9/site-packages/madcad/rendering.py", line 981, in render
    ViewCommon.render(self)
  File "/Users/jeromegout/dev/david/implantology/.venv/lib/python3.9/site-packages/madcad/rendering.py", line 712, in render
    self.uniforms['proj'] = proj = self.projection.matrix(w/h, self.navigation.distance)
ZeroDivisionError: division by zero
[1]    8975 abort      /Users/jeromegout/dev/david/implantology/.venv/bin/python 

It seems that is related to OpenGL. Any clue or advice

Thanks in advance Jerome