Overview

Each class of material point elements and conditions defines a set of variables required for solving the given problem. The name and type of these variables depend on what the specific material point element or condition simulates.

• List of material point element variables
• List of material point condition variables

The values of these variables can be accessed and modified in both C++ and Python. Below, we show how to interact with them using Python.

Get Values

Material point element and condition variables can be retrieved using the class method CalculateOnIntegrationPoints. The first argument is the variable to be accessed, whereas the second is the model part process_info.

elem_coords = mpm_element.CalculateOnIntegrationPoints(
    KratosMultiphysics.MPMApplication.MP_COORD, mpm_model_part.process_info)[0]
cond_coords = mpm_condition.CalculateOnIntegrationPoints(
    KratosMultiphysics.MPMApplication.MPC_COORD, mpm_model_part.process_info)[0]

Set Values

Similarly, the values of material point element and condition variables can be set by using the class method SetValuesOnIntegrationPoints. The first argument is the variable whose value is to be assigned, the second is the actual value always contained in a list and the third is the model part process_info.

mpm_element.SetValuesOnIntegrationPoints(
    KratosMultiphysics.MPMApplication.MP_DISPLACEMENT, [[0.1, 2.2, 3.0]], mpm_model_part.process_info)
mpm_condition.SetValuesOnIntegrationPoints(
    KratosMultiphysics.MPMApplication.MPC_DISPLACEMENT, [[0.1, 2.2, 3.0]], mpm_model_part.process_info)