Julia integration is broken

[German]

Importing PyMAPDL is broken. The following code crashes the terminal:

using PyCall
pymapdl = pyimport("ansys.mapdl.core")

It seems this is due to the helper objects we create in plotting.py.

pymapdl/src/ansys/mapdl/core/plotting.py

Lines 74 to 147 in 22b85be

 TEMP = pv.Sphere(center=(0, 0, 0), radius=0.5) 
  
 UX = pv.Arrow( 
     start=(-1, 0, 0), 
     direction=(1, 0, 0), 
     tip_length=1, 
     tip_radius=0.5, 
     scale=1.0, 
 ) 
 UY = pv.Arrow( 
     start=(0, -1, 0), 
     direction=(0, 1, 0), 
     tip_length=1, 
     tip_radius=0.5, 
     scale=1.0, 
 ) 
  
 UZ = pv.Arrow( 
     start=(0, 0, -1), 
     direction=(0, 0, 1), 
     tip_length=1, 
     tip_radius=0.5, 
     scale=1.0, 
 ) 
  
 FX = pv.Arrow( 
     start=(-1, 0, 0), 
     direction=(1, 0, 0), 
     tip_length=0.5, 
     tip_radius=0.25, 
     scale=1.0, 
 ) 
 FY = pv.Arrow( 
     start=(0, -1, 0), 
     direction=(0, 1, 0), 
     tip_length=0.5, 
     tip_radius=0.25, 
     scale=1.0, 
 ) 
  
 FZ = pv.Arrow( 
     start=(0, 0, -1), 
     direction=(0, 0, 1), 
     tip_length=0.5, 
     tip_radius=0.25, 
     scale=1.0, 
 ) 
  
 def get_VOLT(): 
     model_a = pv.Cylinder( 
         center=(0, 0, 0), direction=(1, 0, 0), radius=0.2, height=2 
     ).triangulate() 
  
     model_b = pv.Cylinder( 
         center=(0, 0, 0), direction=(0, 1, 0), radius=0.2, height=2 
     ).triangulate() 
  
     model_c = pv.Cylinder( 
         center=(0, 0, 0), direction=(0, 0, 1), radius=0.2, height=2 
     ).triangulate() 
  
     result = model_a.merge(model_b).triangulate() 
     result = result.merge(model_c) 
  
     result.rotate_z(45.0, inplace=True) 
     result.rotate_vector( 
         vector=(1, -1, 0), angle=-45, point=(0, 0, 0), inplace=True 
     ) 
  
     return result 
  
 VOLT = get_VOLT() 
  
 HEAT = pv.Cube(center=(0, 0, 0), x_length=1.0, y_length=1.0, z_length=1.0) 

One way to mitigate that, is making those objects attributes of a new class:

# Symbols for constrains
class DefaultSymbol:

    def __init__(self):
        self.TEMP = pv.Sphere(center=(0, 0, 0), radius=0.5)
        ....

Temporary fix

There are two temporary solutions until I have time to implement the above change.

• Uninstall pyvista from the local python environment (in PyCall.python)
• If PyMAPDL is installed in editable you can replace the following line 70:
  

  pymapdl/src/ansys/mapdl/core/plotting.py

  Line 70 in 22b85be

   if _HAS_PYVISTA: 

  
  by:

if _HAS_PYVISTA and False:
    import pyvista as pv

But this can create issues later.