json template

{
	dataset : {
		nodes : [{
		index : <standard index number that d3 uses>,
		id: <key identifier for the model>,
		nodeType : <enum field>,
		attributes : {<contents may vary depending on node type>}
		x : <The x-coordinate of the current node position>,
		y : <The y-coordinate of the current node position>,
		px: <The x-coordinate of the previous node position>,
		py: <The y-coordinate of the previous node position>,
		fixed: <a boolean indicating whether node position is locked>,
		weight: <>
		}],
		
		links : [{
		id: <key identifier for the model>,
		source:  < reference to the source node that the link is joined to>,
		target: <reference to the the target node that the link is joined to>,
		sourceID: <reference to the source node for the model interpretation>,
		targetID: <reference to the target node for the model interpretation>,
		linkType : <enum field>,
		attributes : {<contents may vary depending on link type>}
		}]
	}
}