#==============================================================================

# mechCAD

#==============================================================================

class mechCAD ( CAD ) :

def move (self,index):

try:

self.clear()

self.a.put("MOVE")

self.b.put(`index`)

self.mark()

self.preset()

pythonCA.flush()

if self.isvalid():

self.start()

else:

print "move failed:",self.mess.get()

except pythonCA.IOerror:

print "move failed: IO error"

raise CommandError

def stop (self):

try:

self.clear()

self.mark()

self.stop()

if self.val.get():

print "stop failed:",self.mess.get()

except pythonCA.IOerror:

print "stop failed: IO error"

raise CommandError

#==============================================================================

# mechanism

#==============================================================================

class mechanism:

def __init__ (self,mech = ''):

try:

self.cad = mechCAD (mech)

self.car = CAR (mech)

except InitError:

print "error creating",mech

raise NullObject

def move (self,index):

self.cad.move(index)

def stop (self,index):

self.cad.stop()