Amazon VERSION 2.0V1 Betriebsanweisung PDF herunterladen (Seite 169)

169

# Create a PrimitiveCreate node at root level

primitive = NodegraphAPI.CreateNode\

( 'PrimitiveCreate', root)

# Create a Merge node at root level

mergeOne = NodegraphAPI.CreateNode( 'Merge', root )

# Add an output port to the PrimitiveCreate node

primOut = primitive.addOutputPort( "newOutputPort" )

# Add an input to the Merge node

mergeIn = mergeOne.addInputPort( "fromPrim" )

# Connect PrimitiveCreate to Merge

primOut.connect( mergeIn )

# Use getConnectedPorts to find connections on mergeIn

mergeInConnected = mergeIn.getConnectedPorts()

# Print the connected port

print( mergeInConnected )

This returns:

[ < Port Producer 'yourPortName' > ]

Logical Source

To find the logical source of an input node use <yourNodeName>.getInputSource(), which takes the name of the

port and a time as arguments, and returns a tuple containing the source port and the time. If no port is found, it

returns None.

For example, recreate the scene shown in Physical and Logical Connections with two nodes connected to the inputs

of a switch node, and one node connected to the output, then find the input source at the output:

root = NodegraphAPI.GetRootNode()

# Create TheInputSourceNode at root level

primitive1 = NodegraphAPI.CreateNode( 'PrimitiveCreate',\

root )

primitive2 = NodegraphAPI.CreateNode( 'PrimitiveCreate',\

root )

primitive1.setName( "A" )

primitive2.setName( "B" )

primitive1Out = primitive1.getOutputPort( "out" )

primitive2Out = primitive2.getOutputPort( "out" )

# Create the Switch node at root level

switch = NodegraphAPI.CreateNode( 'Switch', root )

switchInput1 = switch.addInputPort( "input1" )

switchInput2 = switch.addInputPort( "input2" )

23 NODEGRAPH API | PHYSICAL AND LOGICAL CONNECTIONS

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Amazon VERSION 2.0V1 Betriebsanweisung Seite 169