the units module¶
- class pNbody.units.PhysCte(value, Unit)¶
Physical constant
- pNbody.units.Set_SystemUnits_From_File(unitsfile)¶
return a system of units from given file coding units
unitsfile file is either a gadget parameter file or a pNbody units file
- pNbody.units.Set_SystemUnits_From_Params(params)¶
return a system of units from given parameters
params is a dictionary that must contain at least
params[‘UnitVelocity_in_cm_per_s’],
params[‘UnitMass_in_g’],
params[‘UnitLength_in_cm’]
- class pNbody.units.UnitSystem(UnitSysName, UnitLst)¶
Units system
- convertionFactorTo(newUnits)¶
return the conversion factor to obtain the new units
- info()¶
print some info
- into(newUnits)¶
return into the new units
- class pNbody.units.Units(symbol, factor=1.0, power=1, ulist=None)¶
Units class.
- GatherBaseUnits()¶
create the self.bases list (recursively)
- get_basefactor()¶
return the factor relative to the base units
actually, it is stored as the factor of the first base unit
- class pNbody.units.unitSystem(ULength=<Quantity 3.085678e+21 cm>, UMass=<Quantity 1.989e+43 g>, UVelocity=<Quantity 100000. cm / s>)¶
New system units, compatible with astropy. By default the units are the Gadget-2 ones.
