# Sample code to show how to access the ICENode elements.

import win32com.client

from win32com.client import constants

xsi = Application

# Recursive function for traversing a node graph

def TraverseNodeGraph( node, level ):

	indent = level * '.'

	# Log info on the visited node 

	xsi.LogMessage( "* * *" )

	# Node info

	xsi.LogMessage( indent + "node: " + node.FullName );

	xsi.LogMessage( indent + "node type: " + node.Type );

	xsi.LogMessage( indent + "node proxy class: " + xsi.ClassName(node) );

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

	xsi.LogMessage( indent + "node parent: " + str(node.Parent.Name) )

	xsi.LogMessage( indent + "node root: " + str(node.RootNodeContainer.Name) )

	# Node port group info

	portGroupCount = node.PortGroupCount

	xsi.LogMessage( indent + "number of groups: " + str(portGroupCount) )

	for iGroup in range(portGroupCount):

		nPortsInGroup = node.GetPortCount(iGroup)

		xsi.LogMessage( indent + "number of ports in group " + str(iGroup) + ": " + str(nPortsInGroup) )

		nGroupInst = node.GetGroupInstanceCount(iGroup)

		xsi.LogMessage( indent + "number of instances of group " + str(iGroup) + ": " + str(nGroupInst) )

		for iInst in range( nGroupInst ):	

			for iPort in range( nPortsInGroup ):

				xsi.LogMessage( indent + "port " + str(iPort) + "," + str(iGroup) + "," + str(iInst) )			

				p = node.GetPortFromIndex(iPort,iGroup,iInst)

				xsi.LogMessage( indent + "port name: " + p.Name )

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

	# Node input port info

	inPorts = node.InputPorts

	inputPortCount = inPorts.Count

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

	# Node output port info

	outPorts = node.OutputPorts

	outputPortCount = outPorts.Count

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

	nodeCount = 0

	nodes = ()

	if node.IsClassOf( constants.siICENodeContainerID ):	

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

		nodes = 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 navigating the graph

cube = xsi.Selection(0)

cubeICETree = cube.ActivePrimitive2.ICETrees[0]

level = 0

TraverseNodeGraph( cubeICETree, level )