How to calculate Centroids of a volume mesh using DPF?

Options
Ayush Kumar
Ayush Kumar Member, Moderator, Employee Posts: 408
First Anniversary Ansys Employee Solution Developer Community of Practice Member First Answer

How to calculate Centroids of a volume mesh using DPF?

Tagged:

Comments

  • Ayush Kumar
    Ayush Kumar Member, Moderator, Employee Posts: 408
    First Anniversary Ansys Employee Solution Developer Community of Practice Member First Answer
    Options
    import mech_dpf
    import Ans.DataProcessing as dpf
    
    # ACT Mesh
    mesh = ExtAPI.DataModel.MeshDataByName('Global')
    
    # Convert to DPF Mesh
    mesh_op = dpf.operators.mesh.acmo_mesh_provider()
    mesh_op.inputs.assembly_mesh.Connect(dpf.AnsDispatchHolder(mesh.InternalObject))
    dpf_mesh = mesh_op.outputs.getmeshes_container()[0]
    
    # Element volume
    el_vol = dpf.operators.geo.elements_volume(mesh=dpf_mesh)
    
    # Get nodes
    n_coord = dpf.operators.mesh.node_coordinates(mesh=dpf_mesh)
    
    # Integrate coordinates over element volume
    vol_int = dpf.operators.geo.integrate_over_elements(field=n_coord, mesh=dpf_mesh)
    
    # Select Components
    vol_int_x = dpf.operators.logic.component_selector(field=vol_int, component_number=0)
    vol_int_y = dpf.operators.logic.component_selector(field=vol_int, component_number=1)
    vol_int_z = dpf.operators.logic.component_selector(field=vol_int, component_number=2)
    
    # Get centroid fields
    cent_x = dpf.operators.math.component_wise_divide(fieldA=vol_int_x, fieldB=el_vol)
    cent_f_x = cent_x.outputs.field.GetData()
    
    cent_y = dpf.operators.math.component_wise_divide(fieldA=vol_int_y, fieldB=el_vol)
    cent_f_y = cent_y.outputs.field.GetData()
    
    cent_z = dpf.operators.math.component_wise_divide(fieldA=vol_int_z, fieldB=el_vol)
    cent_f_z = cent_z.outputs.field.GetData()