Exemplo n.º 1
0
 def getDExpr(self, obj):
     if obj != self.obj:
         raise Exception('invalid object')
     # Return the force in polar coordinates
     return (self.getFSym(), Globals.gravity(self.symbols)[1], '')
Exemplo n.º 2
0
 def getFSym(self):
     return self.obj['tr.mass'] * Globals.gravity(self.symbols)[0]