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annotate nodes/gamma.py @ 167:79bc84310e80

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changes from tonight's rehearsal: changes from tonight's rehearsal: - CueFader is closer to actually running the show, computes DMX levels to send. - KeyboardComposer is not a dummy. Use DMXDUMMY=1 to disable it. - Submaster: subs can now be "temporary" -- i.e. they shouldn't be saved or loaded. to save a temporary sub, make a copy of it with a proper name since the computed name will be ugly. Also, get_normalized_copy() and crossfade() methods added. linear_fade helper (shouldn't be in Submaster, probably) added too. - dmxchanedit: longer labels - cuelist1 now has some bogus data in it and some crap removed - dmxclient: now listens to the $DMXHOST and $DMXDUMMY env variables. - patchdata: now up to date with this year's show - danshow subs song{01..19}: removed. maybe we'll re-add them in an archive directory.
author dmcc
date Tue, 08 Jul 2003 16:19:55 +0000
parents 45b12307c695
children
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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)