drlukeparry / pyccx Goto Github PK

Hi,

I'm trying to develop CalculiX organization on the GitHub to unite all developers and tools in one place. As I can see, you're a member of the organization. So, please, could you move there your amazing library?

All your permissions will be kept, so do not afraid. Old URL will be kept also, new URL will be github.com/calculix/pyccx.

In your project Settings go to Options -> Danger Zone -> Transfer ownership. Click on ‘Transfer’ button, then type ‘calculix’ as user.

Thank you in advance!

A paraview .vtk export option to view the results from Calculix would be useful to post-process the results and provide a better presentation of the results.

It is possible to visualise the results using Matplotlib, however, the performance is inadaquate for large mesh sizes

Update: The exported .frd files will be transformed within the ResultsProcessor and a separator exporter translator method will become available for conversion to Paraview .vtu format

Update 2: An additional function has been created to export the .pvd XML file that are used for exporting the complete timestep / increment history generated from Calculix.

Hello there!

When trying to import pyccx, the statement 'import pyccx' causes a crash. This is done similarly as the example python file.

Simply commenting out the WEDGE6 class in mesher.py appears to fix it for now for me, but this class is presumably needed somewhere and should probably be fixed.

Traceback (most recent call last):
  File "/mnt/c/Users/CRGam/Documents/tandwielen/calculate.py", line 1, in <module>
    import pyccx
  File "/mnt/c/Users/CRGam/Documents/tandwielen/pyccx/pyccx/__init__.py", line 2, in <module>
    from . import mesh
  File "/mnt/c/Users/CRGam/Documents/tandwielen/pyccx/pyccx/mesh/__init__.py", line 1, in <module>
    from .mesher import ElementType, Mesher, MeshingAlgorithm
  File "/mnt/c/Users/CRGam/Documents/tandwielen/pyccx/pyccx/mesh/mesher.py", line 19, in <module>
    class ElementType:
  File "/mnt/c/Users/CRGam/Documents/tandwielen/pyccx/pyccx/mesh/mesher.py", line 79, in ElementType
    class WEDGE6:
  File "/mnt/c/Users/CRGam/Documents/tandwielen/pyccx/pyccx/mesh/mesher.py", line 84, in WEDGE6
    faces = np.array([[1,2,3], [4,5,6], [1,2,5,4], [2,3,6,5], [3,1,4,6]])
ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 1 dimensions. The detected shape was (5,) + inhomogeneous part.

Currently using GMSH to generate the mesh input file for Calculix, however, there is currently not an option to generate reduced order elements natively.

The entire results file from Calculix is loaded entirely into memory and parsed which is an expensive procedure for large analyses. Individual timesteps and loadcases should be able to be loaded on demand to reduce memory consumption and the time taken to load.

Axisymmetric Elements are available but implementation and testing within Calculix.

This will assume elements with a 2D cross-section projected by revolution around an axis.

It appears that in the Simulation class (pyccx/analysis/analysis.py), the working directory that was set on object creation is not taken into account when trying to retrieve the results using the results() function. This causes a file not found error when trying to retrieve the results of an analysis when the working directory is not the same as the directory the python script was executed from.

Changing line 500 from: return ResultProcessor('input')
To: return ResultProcessor(os.path.join(self._workingDirectory, 'input'))

Appears to resolve this issue.