// This example illustrates how to browse the port groups
// of an operator.
newscene( null, false );
CreatePrim("Cylinder", "MeshSurface", null, null);
var col = ApplyOp("Shear", "cylinder", 3, siPersistentOperation);
var op = col(0);
dump_portgroups(op);
function dump_portgroups(op)
{
	if ( ! op.belongsto("Operators") )
		return;
	var ePortGroups = new Enumerator(op.portgroups);
	for ( ; ! ePortGroups.atEnd(); ePortGroups.moveNext() )
	{
		var portgroup = ePortGroups.item();
		var str = ""; 
		str += "group name: " + portgroup.name;
		str += ", type: " + portgroup.type;
		str += ", parent: " + portgroup.parent;
		str += ", index: " + portgroup.index;
		str += ", flags: " + portgroup.flags;
		str += ", min: " + portgroup.min;
		str += ", max: " + portgroup.max;
		str += ", filter: " + portgroup.filter;
		str += ", pickprompt: " + portgroup.pickprompt;
		str += ", optional: " + portgroup.isoptional();
		str += ", branchgroup: " + portgroup.SupportsBranchGroup();
		logmessage( str ); 
		var ePorts = new Enumerator(portgroup.ports);
		for ( ; ! ePorts.atEnd(); ePorts.moveNext() )
		{
			var port = ePorts.item();
			dump_port(port);
		}
	}
}	
function dump_port(port)
{	
	var str = "";
	str += "port name: " + port.name;
	str += ", type: " + port.type;
	str += ", porttype: " + port.porttype;
	str += ", connected: " + port.isconnected;
	if ( port.isconnected)
		str += ", target: " + port.target2; 
	str += ", parent: " + port.parent;
	str += ", index: " + port.index;
	str += ", flags: " + port.flags;
	if ( port.type == "InputPort" )
		str += ", optional: " + port.optional;
	if ( port.type == "OutputPort" )
		str += ", created: " + port.created;
	str += ", branchgroup: " + port.BranchGroup;
	str += ", groupname: " + port.groupname;
	str += ", groupindex: " + port.groupindex;
	str += ", groupinstance: " + port.groupinstance;
	logmessage( str ); 
}