Hello everyone,
I have a plugin that defines several output plugs:
output_t_qqq = OpenMaya.MObject()
output_t_rrr = OpenMaya.MObject()
output_t_sss = OpenMaya.MObject()
output_t_ttt = OpenMaya.MObject()
These output plugs get added correctly as an attributes to the class, in the
nodeInitializer function:
myClass.output_t_qqq = numericAttributeFn.createPoint( 'qqq_translate_out',
'qqq_t_out' )
numericAttributeFn.setWritable( False )
numericAttributeFn.setStorable( False )
numericAttributeFn.setHidden( True )
numericAttributeFn.setReadable(True)
myClass.addAttribute( myClass.output_t_qqq )
etc...
Here's my question: I want to optimize my compute function by executing a
particular block if the plug name is .._qqq, or .._rrr, etc. I thought I could
do this :
def compute(self, pPlug, pDataBlock):
params = ['qqq', 'rrr', 'sss', 'ttt']
for param in params:
if (pPlug == myClass + '.output_t_' + param):
# do math for the _qqq output attr.
However Maya complains, at the if statement:
"unsupported operand type(s) for +: 'type' and 'str'"
So.... performing string concatenation in an expression, inside compute() is
illegal in some way. What's the legal way of doing this?
Mitch
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