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1 """node that performs a simple gamma (exp) function on its input"""
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2
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3 class GammaOps(Ops):
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4 def started(self, input, output, stateaccess):
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5 self.startmeup(stateaccess)
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6 def changed(self, input, output, stateaccess):
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7 port.output = port.input ** stateaccess.gamma + stateaccess.offset
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8 stateaccess.lastvalue = State.FloatingPoint(port.input)
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9
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10 output = gamma(input)
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11 # no timed function
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12 def startmeup(self, stateaccess):
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13 # whatever
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14 pass
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15
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16 class Gamma(Node):
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17 def __init__(self):
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18 Node.__init__(self)
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19 self.node_params = {'gamma':State.FloatingPoint,'offset':State.FloatingPoint}
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20 self.ops = GammaOps()
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21
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22 def getnodeparams(self):
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23 return self.node_params
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24
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25 def getports(self):
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26 return (Port('a', optional=1),
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27 Port('b'))
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28
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29 def __str__(self):
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30 return "3"
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31
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32 world.register_node(Gamma)
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