title: How can I set the start position of nodes in cytoscape.js with cy.load?
body: <p>I am trying to set the start position of my nodes manually but loading them from a JSON structure. If I put the position within the 'nodes' structure it works, however I am trying to 
  add a seperate structure called 'positions:'which I thought should work? See below for an example of the structure.</p>
  
  <pre><code>var graphdata = { nodes: [ { data: { id: 'j', name: 'Jerry', width: 20, height: 20 ,     shape: 'rectangle' }},
                         { data: { id: 't', name: 'Tom', width: 20 , height: 20, shape: 'circle' } },
                         { data: { id: 'm', name: 'Mary', width: 20 , height: 20, shape: 'circle' } } ,
                         { data: { id: 'b', name: 'Bob', width: 20 , height: 20, shape: 'circle' } } ],
  
                edges: [
                        { data: { source: 'j', target: 't', faveColor: '#6FB1FC', strength: 90 } },
                        { data: { source: 't', target: 'm', faveColor: '#6FB1FC', strength: 90 } },
                        { data: { source: 'm', target: 'b', faveColor: '#6FB1FC', strength: 90 } } ],
  
               positions: [ { j: { x:100,y:100 } }, 
                            { t: { x:100,y:200 } } ]
  </code></pre>
  
  <p>Later on I call 
      cy.load(graphdata). </p>
  
  <p>The nodes and edges display fine but the position doesn't seem to be affected at all.</p>
  
  <p>I have also loaded the preset layout.</p>
  
  <p>Thanks.</p>