#

# This example shows how to access the ports of ICENode objects

#

import win32com.client

from win32com.client import constants

xsi = Application

# ICENodePort introspection

def LogICENodePort( in_nodeport, level ):

	indent = level * '.'

	xsi.LogMessage( "* * * " )

	xsi.LogMessage( indent + "node port: " + in_nodeport.FullName )

	xsi.LogMessage( indent + "node port parent: " + in_nodeport.Parent.FullName )

	xsi.LogMessage( indent + "node port class: " + xsi.ClassName( in_nodeport ) )

	xsi.LogMessage( indent + "output node port: " + str(in_nodeport.IsOutput) )

	xsi.LogMessage( indent + "connected: " + str(in_nodeport.IsConnected) )

	xsi.LogMessage( indent + "group port index: " + str(in_nodeport.Index) )

	xsi.LogMessage( indent + "group index: " + str(in_nodeport.GroupIndex) )

	xsi.LogMessage( indent + "group instance index: " + str(in_nodeport.GroupInstanceIndex) )

	xsi.LogMessage( indent + "type: " + str(in_nodeport.DataType) )

	xsi.LogMessage( indent + "structure type: " + str(in_nodeport.StructureType) )

	xsi.LogMessage( indent + "evaluation context type: " + str(in_nodeport.ContextType) )

	connectednodes = in_nodeport.ConnectedNodes

	count = connectednodes.Count

	xsi.LogMessage( indent + "connected nodes: " + str(count) )	

	for i in range(count):

		xsi.LogMessage( indent + "connected node: " + connectednodes[i].Name )

	# Log the port parameters

	params = in_nodeport.Parameters

	for param in params:

		xsi.LogMessage( indent + "parameter: " + param.ScriptName + ":" + str(param.GetValue2()) )

# Recursive function for traversing a node graph

def TraverseNodeGraph( in_node, level ):

	indent = level * '.'

	# Log the visited node name

	xsi.LogMessage( indent + in_node.Name )

	# Log all ICENodePorts for this node

	inPorts = in_node.InputPorts

	inputPortCount = inPorts.Count

	xsi.LogMessage( indent + "node input ports: " + str(inputPortCount) )

	for i in range(inputPortCount ):

		nodeport = inPorts[i]

		LogICENodePort( nodeport, level+2 )			

	outPorts = in_node.OutputPorts

	outputPortCount = outPorts.Count

	xsi.LogMessage( indent + "node output ports: " + str(outputPortCount) )

	for i in range(outputPortCount ):

		nodeport = outPorts[i]

		LogICENodePort( nodeport, level+2 )			

	nodeCount = 0

	nodes = ()

	if in_node.IsClassOf( constants.siICENodeContainerID ):	

		# The input node might be a ICETree or ICECompoundNode, let's get their ICENodes

		nodes = in_node.Nodes

		nodeCount = nodes.Count

	# Recursively traverse the graph

	for i in range(nodeCount):

		TraverseNodeGraph( nodes[i], level+2 )

# Create a sample twist deformer graph first

xsi.CreatePrim( "Cube", "MeshSurface" )

xsi.SetValue( "cube.polymsh.geom.subdivu", 15 )

xsi.SetValue( "cube.polymsh.geom.subdivv", 14 )

xsi.ApplyOp( "ICETree", "cube", None, None, None, 0 )

xsi.AddICENode( "GetDataNode", "cube.polymsh.ICETree" )

xsi.SetValue( "cube.polymsh.ICETree.SceneReferenceNode.Reference", "cube.polymsh.PointPosition" )

xsi.AddICENode( "RotateVectorNode", "cube.polymsh.ICETree" )

xsi.AddICENode( "3DVectorToScalarNode", "cube.polymsh.ICETree" )

xsi.AddICENode( "SetData", "cube.polymsh.ICETree" )

xsi.SetValue( "cube.polymsh.ICETree.SetData.PredefinedAttributeName", "PointPosition" )

xsi.AddAttributeToSetDataICENode( "cube.polymsh.ICETree.SetData", "PointPosition", constants.siComponentDataTypeVector3, constants.siComponentDataContextComponent0D, constants.siComponentDataStructureSingle )

xsi.ConnectICENodes( "cube.polymsh.ICETree.port1", "cube.polymsh.ICETree.SetData.set" )

xsi.ConnectICENodes( "cube.polymsh.ICETree.RotateVectorNode.vector", "cube.polymsh.ICETree.SceneReferenceNode.value" )

xsi.ConnectICENodes( "cube.polymsh.ICETree.SetData.pointposition", "cube.polymsh.ICETree.RotateVectorNode.result" )

xsi.ConnectICENodes( "cube.polymsh.ICETree.3DVectorToScalarNode.vector", "cube.polymsh.ICETree.SceneReferenceNode.value" )

xsi.AddICENode( "MultiplyNode", "cube.polymsh.ICETree" )

xsi.ConnectICENodes( "cube.polymsh.ICETree.MultiplyNode.value1", "cube.polymsh.ICETree.3DVectorToScalarNode.y" )

xsi.AddICENode( "ScalarToRotationNode", "cube.polymsh.ICETree" )

xsi.ConnectICENodes( "cube.polymsh.ICETree.ScalarToRotationNode.angle", "cube.polymsh.ICETree.MultiplyNode.result" )

xsi.ConnectICENodes( "cube.polymsh.ICETree.RotateVectorNode.rotation", "cube.polymsh.ICETree.ScalarToRotationNode.rotation" )

xsi.SetValue( "cube.polymsh.ICETree.ScalarToRotationNode.y", 1 )

xsi.SetValue( "cube.polymsh.ICETree.ScalarToRotationNode.x", 0 )

xsi.SetValue( "cube.polymsh.ICETree.MultiplyNode.value2", 20 )

xsi.CreateICECompoundNode("cube.polymsh.ICETree.3DVectorToScalarNode,cube.polymsh.ICETree.MultiplyNode,cube.polymsh.ICETree.ScalarToRotationNode", "")

# Get the ICETree off the cube primitive and start iterating in the graph

cube = xsi.Selection(0)

cubeICETree = cube.ActivePrimitive2.ICETrees[0]

level = 0

TraverseNodeGraph( cubeICETree, level )