def to(self,units):
if isinstance(units,udunits):
u=units.units
else:
u=units
s,i=udunits_wrap.convert(self.units,u)
return udunits(self.value*s+i,u)
def how(self,units):
if isinstance(units,udunits):
u=units.units
else:
u=units
s,i=udunits_wrap.convert(self.units,u)
return s,i
def _setunits(self,units):
if self.value is None:
self._units=units
elif units!=self.units:
s,i=udunits_wrap.convert(self.units,units)
self.value=self.value*s+i
self._units=units
return
def __rsub__(self,other):
if not isinstance(other, (udunits,int,long,float)):
raise "Error must sub a number or a udunit object"
out=udunits(self.units,self.value)
if isinstance(other, udunits):
s,i=udunits_wrap.convert(other.units,self.units)
out.value=(other.value*s+i)-self.value
else:
out.value=other-out.value
return out
def __radd__(self,other):
if not isinstance(other, (udunits,int,long,float)):
raise "Error must add a number or a udunit object"
out=udunits(self.units,self.value)
if isinstance(other, udunits):
s,i=udunits_wrap.convert(other.units,self.units)
out.value=self.value+other.value*s+i
else:
out.value+=other
return out
def __div__(self,other):
if not isinstance(other, (udunits,int,long,float)):
raise "Error must divide by a number or a udunit object"
out=udunits(self.units,self.value)
if isinstance(other, udunits):
try:
s,i=udunits_wrap.convert(other.units,self.units)
out=self.value/(other.value*s+i)
except: #Ok uncompatible units, just do the produce
out=udunits(self.value/other.value,self.units+'/'+other.units)
else:
out.value/=other
return out
def __rmul__(self,other):
if not isinstance(other, (udunits,int,long,float)):
raise "Error must multiply a number or a udunit object"
out=udunits(self.units+'*'+self.units,self.value)
if isinstance(other, udunits):
try:
s,i=udunits_wrap.convert(other.units,self.units)
out.value=self.value*(other.value*s+i)
except: #Ok uncompatible units, just do the produce
out=udunits(self.units+'*'+other.units,self.value*other.value)
else:
out = udunits(other*self.value,self.units)
return out
