DDSim: Add largest acceptable step option to bField, needs DD4hep revision 2050

DDSim/DD4hepSimulation.py

@@ -461,6 +461,7 @@ class DD4hepSimulation(object):
     field.delta_chord        = self.field.delta_chord
     field.delta_intersection = self.field.delta_intersection
     field.delta_one_step     = self.field.delta_one_step
+    field.largest_step       = self.field.largest_step
 
   def __checkFileFormat(self, fileNames, extensions):
     """check if the fileName is allowed, note that the filenames are case

DDSim/Helper/MagneticField.py

 """Helper object for Magnetic Field properties"""
-from SystemOfUnits import mm
+from SystemOfUnits import mm, m
 from DDSim.Helper.ConfigHelper import ConfigHelper
 
 class MagneticField( ConfigHelper ):
@@ -14,3 +14,4 @@ class MagneticField( ConfigHelper ):
     self.delta_chord = 0.25*mm
     self.delta_intersection = 1e-05*mm
     self.delta_one_step = 1e-04*mm
+    self.largest_step = 10*m