628 lines
22 KiB
JavaScript
628 lines
22 KiB
JavaScript
function graphSettings(type) {
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var t;
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if (type == "arranged" || type == "chaotic") {
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t = {
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//id of the visualization container
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injectInto: 'infovis',
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//Enable zooming and panning
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//by scrolling and DnD
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Navigation: {
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enable: true,
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type: 'HTML',
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//Enable panning events only if we're dragging the empty
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//canvas (and not a node).
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panning: 'avoid nodes',
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zooming: 15 //zoom speed. higher is more sensible
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},
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// Change node and edge styles such as
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// color and width.
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// These properties are also set per node
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// with dollar prefixed data-properties in the
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// JSON structure.
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Node: {
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overridable: true,
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color: '#2D6A5D',
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type: 'customNode',
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dim: 25
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},
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Edge: {
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overridable: true,
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color: '#222222',
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type: 'customEdge',
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lineWidth: 2
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},
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//Native canvas text styling
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Label: {
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type: 'HTML', //Native or HTML
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size: 20,
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//style: 'bold'
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},
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//Add Tips
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Tips: {
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enable: false,
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onShow: function (tip, node) {}
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},
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// Add node events
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Events: {
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enable: true,
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enableForEdges: true,
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type: 'HTML',
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//Change cursor style when hovering a node
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onMouseEnter: function () {
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},
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onMouseLeave: function () {
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},
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//Update node positions when dragged
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onDragMove: function (node, eventInfo, e) {
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clickDragOnTopic(node, eventInfo, e);
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},
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onDragEnd: function() {
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if (tempInit && tempNode2 == null) {
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$('#topic_addSynapse').val("true");
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$('#new_topic').fadeIn('fast');
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addMetacode();
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$('#topic_name').focus();
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}
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else if (tempInit && tempNode2 != null) {
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$('#topic_addSynapse').val("false");
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$('#synapse_topic1id').val(tempNode.id);
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$('#synapse_topic2id').val(tempNode2.id);
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$('#new_synapse').fadeIn('fast');
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$('#synapse_desc').focus();
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tempNode = null;
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tempNode2 = null;
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tempInit = false;
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}
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},
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onDragCancel: function() {
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tempNode = null;
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tempNode2 = null;
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tempInit = false;
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$('#topic_addSynapse').val("false");
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$('#topic_topic1id').val(0);
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$('#topic_topic2id').val(0);
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Mconsole.plot();
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},
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//Implement the same handler for touchscreens
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onTouchMove: function (node, eventInfo, e) {
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$jit.util.event.stop(e); //stop default touchmove event
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this.onDragMove(node, eventInfo, e);
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},
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//Add also a click handler to nodes
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onClick: function (node, eventInfo, e) {
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//clicking on a node, or clicking on blank part of canvas?
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if (node.nodeFrom) {
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selectEdgeOnClickHandler(node);
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}
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else if (node && !node.nodeFrom) {
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selectNodeOnClickHandler(node);
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} else {
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canvasDoubleClickHandler(eventInfo.getPos(), e);
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}//if
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}//onClick
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},
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//Number of iterations for the FD algorithm
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iterations: 200,
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//Edge length
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levelDistance: 200,
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// Add text to the labels. This method is only triggered
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// on label creation and only for DOM labels (not native canvas ones).
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onCreateLabel: function (domElement, node) {
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var html =
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'<div class="CardOnGraph" title="Click to Hide" id="topic_' + node.id + '"><p class="type">' + node.getData("metacode") + '</p>' +
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'<img alt="' + node.getData("metacode") + '" class="icon" height="50" src="' + imgArray[node.getData("metacode")].src + '" width="50" />' +
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'<div class="scroll"><a href="/topics/' + node.id + '" class="title">' + node.name + '</a>' +
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'<div class="contributor">Added by: <a href="/users/' + node.getData('userid') + '">' + node.getData('username') + '</a></div>' +
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//'<div class="desc"><p>' + node.getData('desc') + '</p></div></div>' +
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'<div class="desc best_in_place" id="best_in_place_desc" data-url="/topics/' + node.id + '" data-object="topic" data-attribute="desc" data-type="input">' + node.getData('desc') + '.' + '</div></div>' +
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'<a href="' + node.getData('link') + '" class="link" target="_blank">' + node.getData('link') + '</a></div>';
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var showCard = document.createElement('div');
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showCard.className = 'showcard topic_' + node.id;
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showCard.innerHTML = html;
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showCard.style.display = "none";
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domElement.appendChild(showCard);
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// add some events to the label
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showCard.onclick = function(){
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delete node.selected;
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node.setData('dim', 25, 'current');
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node.eachAdjacency(function (adj) {
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adj.setDataset('end', {
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lineWidth: 2,
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color: '#222222'
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});
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adj.setData('showDesc', false, 'current');
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});
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Mconsole.fx.animate({
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modes: ['edge-property:lineWidth:color'],
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duration: 500
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});
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// $('.showcard.topic_' + node.id).fadeOut('fast', function(){
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// $('.name').css('display','block');
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// Mconsole.plot();
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// });
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}
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// Create a 'name' button and add it
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// to the main node label
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var nameContainer = document.createElement('span'),
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style = nameContainer.style;
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nameContainer.className = 'name topic_' + node.id;
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nameContainer.innerHTML = '<div class="label">' + node.name + '</div>';
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domElement.appendChild(nameContainer);
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style.fontSize = "0.9em";
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style.color = "#222222";
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// add some events to the label
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nameContainer.onclick = function(){
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selectNodeOnClickHandler(node)
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}
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},
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// Change node styles when DOM labels are placed
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// or moved.
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onPlaceLabel: function (domElement, node) {
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var style = domElement.style;
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var left = parseInt(style.left);
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var top = parseInt(style.top);
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var w = domElement.offsetWidth;
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style.left = (left - w / 2) + 'px';
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style.top = (top+25) + 'px';
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style.display = '';
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}
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};
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} else if (type = "centered") {
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t = {
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//id of the visualization container
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injectInto: 'infovis',
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//Optional: create a background canvas that plots
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//concentric circles.
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background: {
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CanvasStyles: {
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strokeStyle: '#333',
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lineWidth: 1.5
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}
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},
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//Enable zooming and panning
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//by scrolling and DnD
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Navigation: {
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enable: true,
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type: 'HTML',
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//Enable panning events only if we're dragging the empty
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//canvas (and not a node).
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panning: 'avoid nodes',
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zooming: 15 //zoom speed. higher is more sensible
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},
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// Change node and edge styles such as
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// color and width.
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// These properties are also set per node
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// with dollar prefixed data-properties in the
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// JSON structure.
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Node: {
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overridable: true,
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color: '#2D6A5D',
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type: 'customNode',
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dim: 25
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},
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Edge: {
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overridable: true,
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color: '#222222',
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type: 'customEdge',
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lineWidth: 2
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},
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//Native canvas text styling
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Label: {
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type: 'HTML', //Native or HTML
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size: 20,
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//style: 'bold'
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},
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//Add Tips
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Tips: {
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enable: false,
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onShow: function (tip, node) {}
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},
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// Add node events
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Events: {
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enable: true,
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type: 'HTML',
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//Change cursor style when hovering a node
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onMouseEnter: function () {
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},
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onMouseLeave: function () {
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},
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//Update node positions when dragged
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onDragMove: function (node, eventInfo, e) {
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clickDragOnTopic(node, eventInfo, e);
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},
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onDragEnd: function() {
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if (tempInit && tempNode2 == null) {
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$('#topic_addSynapse').val("true");
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$('#new_topic').fadeIn('fast');
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addMetacode();
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$('#topic_name').focus();
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}
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else if (tempInit && tempNode2 != null) {
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$('#topic_addSynapse').val("false");
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$('#synapse_topic1id').val(tempNode.id);
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$('#synapse_topic2id').val(tempNode2.id);
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$('#new_synapse').fadeIn('fast');
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$('#synapse_desc').focus();
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tempNode = null;
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tempNode2 = null;
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tempInit = false;
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}
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},
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onDragCancel: function() {
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tempNode = null;
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tempNode2 = null;
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tempInit = false;
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Mconsole.plot();
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},
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//Implement the same handler for touchscreens
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onTouchMove: function (node, eventInfo, e) {
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$jit.util.event.stop(e); //stop default touchmove event
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this.onDragMove(node, eventInfo, e);
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},
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//Add also a click handler to nodes
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onClick: function (node, eventInfo, e) {
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//clicking on an edge, a node, or clicking on blank part of canvas?
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if (eventInfo.getEdge() != false || node.nodeFrom) {
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if (eventInfo.getEdge() != false) selectEdgeOnClickHandler(eventInfo.getEdge());
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else if (node.nodeFrom) selectEdgeOnClickHandler(node);
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}
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else if (node && !node.nodeFrom) {
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if (!Mconsole.busy) {
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selectNodeOnClickHandler(node);
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Mconsole.onClick(node.id, {
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hideLabels: false
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});
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}
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}
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else {
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canvasDoubleClickHandler(eventInfo.getPos(), e);
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}//if
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}//onClick
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},
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//Number of iterations for the FD algorithm
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iterations: 200,
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//Edge length
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levelDistance: 200,
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// Add text to the labels. This method is only triggered
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// on label creation and only for DOM labels (not native canvas ones).
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onCreateLabel: function (domElement, node) {
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var html =
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'<div class="CardOnGraph" title="Click to Hide" id="topic_' + node.id + '"><p class="type">' + node.getData("metacode") + '</p>' +
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'<img alt="' + node.getData("metacode") + '" class="icon" height="50" src="' + imgArray[node.getData("metacode")].src + '" width="50" />' +
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'<div class="scroll"><a href="/topics/' + node.id + '" class="title">' + node.name + '</a>' +
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'<div class="contributor">Added by: <a href="/users/' + node.getData('userid') + '">' + node.getData('username') + '</a></div>' +
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//'<div class="desc"><p>' + node.getData('desc') + '</p></div></div>' +
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'<div class="desc best_in_place" id="best_in_place_desc" data-url="/topics/' + node.id + '" data-object="topic" data-attribute="desc" data-type="input">' + node.getData('desc') + '.' + '</div></div>' +
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'<a href="' + node.getData('link') + '" class="link" target="_blank">' + node.getData('link') + '</a></div>';
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var showCard = document.createElement('div');
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showCard.className = 'showcard topic_' + node.id;
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showCard.innerHTML = html;
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showCard.style.display = "none";
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domElement.appendChild(showCard);
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// add some events to the label
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showCard.onclick = function(){
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if (!Mconsole.busy) {
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delete node.selected;
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node.setData('dim', 25, 'current');
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node.eachAdjacency(function (adj) {
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adj.setDataset('end', {
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lineWidth: 2,
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color: '#222222'
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});
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adj.setData('showDesc', false, 'current');
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});
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Mconsole.fx.animate({
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modes: ['edge-property:lineWidth:color'],
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duration: 500
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});
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// $('.showcard.topic_' + node.id).fadeOut('fast', function(){
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// $('.name').css('display','block');
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// Mconsole.plot();
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// });
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}
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}
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// Create a 'name' button and add it
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// to the main node label
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var nameContainer = document.createElement('span'),
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style = nameContainer.style;
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nameContainer.className = 'name topic_' + node.id;
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nameContainer.innerHTML = '<div class="label">' + node.name + '</div>';
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domElement.appendChild(nameContainer);
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style.fontSize = "0.9em";
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style.color = "#222222";
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// add some events to the label
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nameContainer.onclick = function(){
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if (!Mconsole.busy) {
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selectNodeOnClickHandler(node);
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Mconsole.onClick(node.id, {
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hideLabels: false
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});
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}
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}
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},
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// Change node styles when DOM labels are placed
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// or moved.
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onPlaceLabel: function (domElement, node) {
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var style = domElement.style;
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var left = parseInt(style.left);
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var top = parseInt(style.top);
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var w = domElement.offsetWidth;
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style.left = (left - w / 2) + 'px';
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style.top = (top+25) + 'px';
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style.display = '';
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}
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};
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}
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return t;
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}
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// defining code to draw edges with arrows pointing in the middle of them
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var renderMidArrow = function(from, to, dim, swap, canvas){
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var ctx = canvas.getCtx();
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// invert edge direction
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if (swap) {
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var tmp = from;
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from = to;
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to = tmp;
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}
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// vect represents a line from tip to tail of the arrow
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var vect = new $jit.Complex(to.x - from.x, to.y - from.y);
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// scale it
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vect.$scale(dim / vect.norm());
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// compute the midpoint of the edge line
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var midPoint = new $jit.Complex((to.x + from.x) / 2, (to.y + from.y) / 2);
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// move midpoint by half the "length" of the arrow so the arrow is centered on the midpoint
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midPoint.x += (vect.x / 0.7);
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midPoint.y += (vect.y / 0.7);
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// compute the tail intersection point with the edge line
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var intermediatePoint = new $jit.Complex(midPoint.x - vect.x,
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midPoint.y - vect.y);
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// vector perpendicular to vect
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var normal = new $jit.Complex(-vect.y / 2, vect.x / 2);
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var v1 = intermediatePoint.add(normal);
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var v2 = intermediatePoint.$add(normal.$scale(-1));
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//ctx.strokeStyle = 'black';
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ctx.beginPath();
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ctx.moveTo(from.x, from.y);
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ctx.lineTo(to.x, to.y);
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(v1.x, v1.y);
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ctx.lineTo(midPoint.x, midPoint.y);
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ctx.lineTo(v2.x, v2.y);
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ctx.stroke();
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};
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// defining custom node type
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var nodeSettings = {
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'customNode': {
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'render': function (node, canvas) {
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var pos = node.pos.getc(true),
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dim = node.getData('dim'),
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cat = node.getData('metacode'),
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inCommons = node.getData('inCommons'),
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onCanvas = node.getData('onCanvas'),
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ctx = canvas.getCtx();
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// if the topic is from the Commons draw a green circle around it
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if (inCommons) {
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ctx.beginPath();
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ctx.arc(pos.x, pos.y, dim+3, 0, 2 * Math.PI, false);
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ctx.strokeStyle = '#67be5f'; // green
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ctx.lineWidth = 2;
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ctx.stroke();
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}
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// if the topic is on the Canvas draw a white circle around it
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if (onCanvas) {
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ctx.beginPath();
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ctx.arc(pos.x, pos.y, dim+3, 0, 2 * Math.PI, false);
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ctx.strokeStyle = 'white';
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ctx.lineWidth = 2;
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ctx.stroke();
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}
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ctx.drawImage(imgArray[cat], pos.x - dim, pos.y - dim, dim*2, dim*2);
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},
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'contains': function(node, pos) {
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var npos = node.pos.getc(true),
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dim = node.getData('dim');
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return this.nodeHelper.circle.contains(npos, pos, dim);
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}
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}
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}
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// defining custom edges
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var edgeSettings = {
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'customEdge': {
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'render': function(adj, canvas) {
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//get nodes cartesian coordinates
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var pos = adj.nodeFrom.pos.getc(true);
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var posChild = adj.nodeTo.pos.getc(true);
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var directionCat = adj.getData("category");
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//label placement on edges
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//plot arrow edge
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if (directionCat == "none") {
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this.edgeHelper.line.render({ x: pos.x, y: pos.y }, { x: posChild.x, y: posChild.y }, canvas);
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}
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else if (directionCat == "both") {
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renderMidArrow({ x: pos.x, y: pos.y }, { x: posChild.x, y: posChild.y }, 13, true, canvas);
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renderMidArrow({ x: pos.x, y: pos.y }, { x: posChild.x, y: posChild.y }, 13, false, canvas);
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}
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else if (directionCat == "from-to") {
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var direction = adj.data.$direction;
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var inv = (direction && direction.length>1 && direction[0] != adj.nodeFrom.id);
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renderMidArrow({ x: pos.x, y: pos.y }, { x: posChild.x, y: posChild.y }, 13, inv, canvas);
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}
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//check for edge label in data
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var desc = adj.getData("desc") + ' (' + adj.getData("id") + ')';
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var showDesc = adj.getData("showDesc");
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if( desc != "" && showDesc ) {
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//now adjust the label placement
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var radius = canvas.getSize();
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var x = parseInt((pos.x + posChild.x - (desc.length * 5)) /2);
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var y = parseInt((pos.y + posChild.y) /2);
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canvas.getCtx().fillStyle = '#000';
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canvas.getCtx().font = 'bold 14px arial';
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canvas.getCtx().fillText(desc, x, y);
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}
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}, 'contains' : function(adj, pos) {
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var from = adj.nodeFrom.pos.getc(true),
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to = adj.nodeTo.pos.getc(true);
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return this.edgeHelper.line.contains(from, to, pos, adj.Edge.epsilon);
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}
|
|
}
|
|
}
|
|
|
|
function selectEdgeOnClickHandler(adj) {
|
|
var showDesc = adj.getData("showDesc");
|
|
if (showDesc) {
|
|
adj.setData('showDesc', false, 'current');
|
|
Mconsole.plot();
|
|
} else if (!showDesc) {
|
|
adj.setData('showDesc', true, 'current');
|
|
Mconsole.plot();
|
|
}
|
|
}//selectEdgeOnClickHandler
|
|
|
|
function selectNodeOnClickHandler(node) {
|
|
|
|
$('.showcard').css('display','none');
|
|
$('.name').css('display','block');
|
|
$('.name.topic_' + node.id).css('display','none');
|
|
$('.showcard.topic_' + node.id).fadeIn('fast');
|
|
|
|
//set final styles
|
|
Mconsole.graph.eachNode(function (n) {
|
|
if (n.id != node.id) delete n.selected;
|
|
n.setData('dim', 25, 'current');
|
|
n.eachAdjacency(function (adj) {
|
|
adj.setDataset('end', {
|
|
lineWidth: 2,
|
|
color: '#222222'
|
|
});
|
|
adj.setData('showDesc', false, 'current');
|
|
});
|
|
});
|
|
if (!node.selected) {
|
|
node.selected = true;
|
|
node.setData('dim', 1, 'current');
|
|
|
|
node.eachAdjacency(function (adj) {
|
|
adj.setDataset('end', {
|
|
lineWidth: 4,
|
|
color: '#FFF'
|
|
});
|
|
adj.setData('showDesc', true, 'current');
|
|
});
|
|
} else {
|
|
node.setData('dim', 25, 'current');
|
|
delete node.selected;
|
|
}
|
|
//trigger animation to final styles
|
|
Mconsole.fx.animate({
|
|
modes: ['edge-property:lineWidth:color'],
|
|
duration: 500
|
|
});
|
|
}//selectNodeOnClickHandler
|
|
|
|
//for the canvasDoubleClickHandler function
|
|
var canvasDoubleClickHandlerObject = new Object();
|
|
canvasDoubleClickHandlerObject.storedTime = 0;
|
|
|
|
function canvasDoubleClickHandler(canvasLoc,e) {
|
|
var TOLERANCE = 300; //0.3 seconds
|
|
|
|
//grab the location and timestamp of the click
|
|
var storedTime = canvasDoubleClickHandlerObject.storedTime;
|
|
var now = Date.now(); //not compatible with IE8 FYI
|
|
|
|
if (now - storedTime < TOLERANCE) {
|
|
//pop up node creation :)
|
|
$('#topic_grabTopic').val("null");
|
|
$('#topic_addSynapse').val("false");
|
|
document.getElementById('new_topic').style.left = e.x + "px";
|
|
document.getElementById('new_topic').style.top = e.y + "px";
|
|
$('#topic_x').val(canvasLoc.x);
|
|
$('#topic_y').val(canvasLoc.y);
|
|
$('#new_topic').fadeIn('fast');
|
|
addMetacode();
|
|
$('#topic_name').focus();
|
|
} else {
|
|
canvasDoubleClickHandlerObject.storedTime = now;
|
|
$('#new_topic').fadeOut('fast');
|
|
$('#new_synapse').fadeOut('fast');
|
|
tempInit = false;
|
|
tempNode = null;
|
|
tempNode2 = null;
|
|
Mconsole.plot();
|
|
}
|
|
}//canvasDoubleClickHandler
|
|
|
|
// ForceDirected Mode: for the creation of new topics and synapses through clicking and draggin with right clicks off of topics
|
|
function clickDragOnTopic(node, eventInfo, e) {
|
|
if (node && !node.nodeFrom) {
|
|
$('#new_synapse').fadeOut('fast');
|
|
$('#new_topic').fadeOut('fast');
|
|
var pos = eventInfo.getPos();
|
|
// if it's a left click, move the node
|
|
if (e.button == 0 && !e.altKey ) {
|
|
node.pos.setc(pos.x, pos.y);
|
|
Mconsole.plot();
|
|
}
|
|
// if it's a right click, start synapse creation
|
|
else if (e.button == 2 || (e.button == 0 && e.altKey)) {
|
|
if (tempInit == false) {
|
|
tempNode = node;
|
|
tempInit = true;
|
|
}
|
|
//
|
|
temp = eventInfo.getNode();
|
|
if (temp != false && temp.id != node.id) { // this means a Node has been returned
|
|
tempNode2 = temp;
|
|
Mconsole.plot();
|
|
renderMidArrow({ x: tempNode.pos.getc().x, y: tempNode.pos.getc().y }, { x: temp.pos.getc().x, y: temp.pos.getc().y }, 13, false, Mconsole.canvas);
|
|
// before making the highlighted one bigger, make sure all the others are regular size
|
|
Mconsole.graph.eachNode(function (n) {
|
|
n.setData('dim', 25, 'current');
|
|
});
|
|
temp.setData('dim',35,'current');
|
|
Mconsole.fx.plotNode(tempNode, Mconsole.canvas);
|
|
Mconsole.fx.plotNode(temp, Mconsole.canvas);
|
|
} else if (!temp) {
|
|
tempNode2 = null;
|
|
Mconsole.graph.eachNode(function (n) {
|
|
n.setData('dim', 25, 'current');
|
|
});
|
|
//pop up node creation :)
|
|
$('#topic_grabTopic').val("null");
|
|
var myX = e.x - 110;
|
|
var myY = e.y - 30;
|
|
document.getElementById('new_topic').style.left = myX + "px";
|
|
document.getElementById('new_topic').style.top = myY + "px";
|
|
document.getElementById('new_synapse').style.left = myX + "px";
|
|
document.getElementById('new_synapse').style.top = myY + "px";
|
|
$('#topic_x').val(eventInfo.getPos().x);
|
|
$('#topic_y').val(eventInfo.getPos().y);
|
|
Mconsole.plot();
|
|
renderMidArrow({ x: tempNode.pos.getc().x, y: tempNode.pos.getc().y }, { x: pos.x, y: pos.y }, 13, false, Mconsole.canvas);
|
|
Mconsole.fx.plotNode(tempNode, Mconsole.canvas);
|
|
}
|
|
}
|
|
}
|
|
}
|