from clease.datastructures.system_changes import SystemChanges
from .mc_constraint import MCConstraint
[docs]class FixedElement(MCConstraint):
"""
Class for forcing an element of a certiain type to stay fixed.
Parameters:
element: str
Name of the element that is supposed to stay fixed
"""
def __init__(self, element):
self.element = element
def __call__(self, system_changes: SystemChanges):
for change in system_changes:
if self.element in (change.old_symb, change.new_symb):
return False
return True