323 lines
13 KiB
JavaScript
323 lines
13 KiB
JavaScript
var labelType, useGradients, nativeTextSupport, animate, json, fd;
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(function() {
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var ua = navigator.userAgent,
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iStuff = ua.match(/iPhone/i) || ua.match(/iPad/i),
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typeOfCanvas = typeof HTMLCanvasElement,
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nativeCanvasSupport = (typeOfCanvas == 'object' || typeOfCanvas == 'function'),
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textSupport = nativeCanvasSupport
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&& (typeof document.createElement('canvas').getContext('2d').fillText == 'function');
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//I'm setting this based on the fact that ExCanvas provides text support for IE
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//and that as of today iPhone/iPad current text support is lame
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labelType = (!nativeCanvasSupport || (textSupport && !iStuff))? 'Native' : 'HTML';
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nativeTextSupport = labelType == 'Native';
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useGradients = nativeCanvasSupport;
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animate = !(iStuff || !nativeCanvasSupport);
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})();
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var imgArray = new Object();
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imgArray['Group'] = new Image(); imgArray['Group'].src = '/assets/group.png';
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imgArray['Person'] = new Image(); imgArray['Person'].src = '/assets/person.png';
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imgArray['Bizarre'] = new Image(); imgArray['Bizarre'].src = '/assets/bizarre.png';
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imgArray['Catalyst'] = new Image(); imgArray['Catalyst'].src = '/assets/catalyst.png';
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imgArray['Closed'] = new Image(); imgArray['Closed'].src = '/assets/closed.png';
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imgArray['Experience'] = new Image(); imgArray['Experience'].src = '/assets/experience.png';
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imgArray['Future Dev'] = new Image(); imgArray['Future Dev'].src = '/assets/futuredev.png';
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imgArray['Idea'] = new Image(); imgArray['Idea'].src = '/assets/idea.png';
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imgArray['Implication'] = new Image(); imgArray['Implication'].src = '/assets/implication.png';
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imgArray['Insight'] = new Image(); imgArray['Insight'].src = '/assets/insight.png';
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imgArray['Intention'] = new Image(); imgArray['Intention'].src = '/assets/intention.png';
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imgArray['Knowledge'] = new Image(); imgArray['Knowledge'].src = '/assets/knowledge.png';
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imgArray['Location'] = new Image(); imgArray['Location'].src = '/assets/location.png';
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imgArray['Open Issue'] = new Image(); imgArray['Open Issue'].src = '/assets/openissue.png';
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imgArray['Opinion'] = new Image(); imgArray['Opinion'].src = '/assets/opinion.png';
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imgArray['Opportunity'] = new Image(); imgArray['Opportunity'].src = '/assets/opportunity.png';
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imgArray['Platform'] = new Image(); imgArray['Platform'].src = '/assets/platform.png';
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imgArray['Problem'] = new Image(); imgArray['Problem'].src = '/assets/problem.png';
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imgArray['Question'] = new Image(); imgArray['Question'].src = '/assets/question.png';
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imgArray['Reference'] = new Image(); imgArray['Reference'].src = '/assets/reference.png';
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imgArray['Requirement'] = new Image(); imgArray['Requirement'].src = '/assets/requirement.png';
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imgArray['Resource'] = new Image(); imgArray['Resource'].src = '/assets/resource.png';
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imgArray['Role'] = new Image(); imgArray['Role'].src = '/assets/role.png';
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imgArray['Task'] = new Image(); imgArray['Task'].src = '/assets/task.png';
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imgArray['Tool'] = new Image(); imgArray['Tool'].src = '/assets/tool.png';
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imgArray['Trajectory'] = new Image(); imgArray['Trajectory'].src = '/assets/trajectory.png';
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imgArray['Action'] = new Image(); imgArray['Action'].src = '/assets/action.png';
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imgArray['Activity'] = new Image(); imgArray['Activity'].src = '/assets/activity.png';
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function initFD(){
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// init custom node type
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$jit.ForceDirected.Plot.NodeTypes.implement({
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'customNode': {
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'render': function (node, canvas) {
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var pos = node.pos.getc(true),
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dim = node.getData('dim'),
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cat = node.getData('itemcatname'),
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ctx = canvas.getCtx();
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ctx.drawImage(imgArray[cat], pos.x - dim, pos.y - dim, dim*2, dim*2);
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},
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'contains': function(node, pos) {
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var npos = node.pos.getc(true),
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dim = node.getData('dim');
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return this.nodeHelper.circle.contains(npos, pos, dim);
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}
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}
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});
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//implement an edge type
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$jit.ForceDirected.Plot.EdgeTypes.implement({
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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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this.edgeHelper.arrow.render({ x: pos.x, y: pos.y }, { x: posChild.x, y: posChild.y }, 40, false, canvas);
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this.edgeHelper.arrow.render({ x: pos.x, y: pos.y }, { x: posChild.x, y: posChild.y }, 40, true, 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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this.edgeHelper.arrow.render({ x: pos.x, y: pos.y }, { x: posChild.x, y: posChild.y }, 40, 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("userid") + ',' + 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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}
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}
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});
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// end
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// init ForceDirected
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fd = new $jit.ForceDirected({
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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: 10 //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: 1
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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: true,
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onShow: function(tip, node) {
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//count connections
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var count = 0;
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node.eachAdjacency(function() { count++; });
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//display node info in tooltip
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tip.innerHTML = "<div class=\"tip-title\">" + node.name + "</div>"
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+ "<div class=\"tip-text\">connections: " + count + "</div>";
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}
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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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//fd.canvas.getElement().style.cursor = 'move';
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},
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onMouseLeave: function() {
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//fd.canvas.getElement().style.cursor = '';
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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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var pos = eventInfo.getPos();
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node.pos.setc(pos.x, pos.y);
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fd.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) {
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if(!node) return;
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//set final styles
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fd.graph.eachNode(function(n) {
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if(n.id != node.id) delete n.selected;
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n.setData('dim', 25, 'end');
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n.eachAdjacency(function(adj) {
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adj.setDataset('end', {
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lineWidth: 0.5,
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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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});
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if(!node.selected) {
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node.selected = true;
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node.setData('dim', 35, 'end');
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node.eachAdjacency(function(adj) {
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adj.setDataset('end', {
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lineWidth: 3,
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color: '#FFF'
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});
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adj.setData('showDesc', true, 'current');
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});
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} else {
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delete node.selected;
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}
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//trigger animation to final styles
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fd.fx.animate({
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modes: ['node-property:dim',
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'edge-property:lineWidth:color'],
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duration: 500
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});
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// Build the right column relations list.
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// This is done by traversing the clicked node connections.
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var html =
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'<p class="type">' + node.getData("itemcatname") + '</p>' +
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'<img alt="' + node.getData("itemcatname") + '" class="icon" height="50" src="' + imgArray[node.getData("itemcatname")].src + '" width="50" />' +
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'<div class="scroll"><a href="/users/' + node.getData("userid") + '/items/' + 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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'<a href="' + node.getData('link') + '" class="link" target="_blank">' + node.getData('link') + '</a>';
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//append connections information
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$jit.id('showcard').innerHTML = '<div class="item" id="item_' + node.id + '"></div>';
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$jit.id('item_' + node.id).innerHTML = html;
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$("#showcard .scroll").mCustomScrollbar();
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}
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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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// Create a 'name' and 'close' buttons and add them
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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';
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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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//Toggle a node selection when clicking
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//its name. This is done by animating some
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//node styles like its dimension and the color
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//and lineWidth of its adjacencies.
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nameContainer.onclick = function() {
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//set final styles
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fd.graph.eachNode(function(n) {
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if(n.id != node.id) delete n.selected;
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n.setData('dim', 25, 'end');
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n.eachAdjacency(function(adj) {
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adj.setDataset('end', {
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lineWidth: 0.4,
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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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});
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if(!node.selected) {
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node.selected = true;
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node.setData('dim', 35, 'end');
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node.eachAdjacency(function(adj) {
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adj.setDataset('end', {
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lineWidth: 3,
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color: '#FFF'
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});
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adj.setData('showDesc', true, 'current');
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});
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} else {
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delete node.selected;
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}
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//trigger animation to final styles
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fd.fx.animate({
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modes: ['node-property:dim',
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'edge-property:lineWidth:color'],
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duration: 500
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});
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// Build the right column relations list.
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// This is done by traversing the clicked node connections.
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var html =
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'<p class="type">' + node.getData("itemcatname") + '</p>' +
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'<img alt="' + node.getData("itemcatname") + '" class="icon" height="50" src="' + imgArray[node.getData("itemcatname")].src + '" width="50" />' +
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'<div class="scroll"><a href="/users/' + node.getData("userid") + '/items/' + 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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'<a href="' + node.getData('link') + '" class="link" target="_blank">' + node.getData('link') + '</a>';
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//append connections information
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$jit.id('showcard').innerHTML = '<div class="item" id="item_' + node.id + '"></div>';
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$jit.id('item_' + node.id).innerHTML = html;
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$("#showcard .scroll").mCustomScrollbar();
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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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var dim = node.getData('dim');
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style.left = (left - w / 2) + 'px';
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style.top = (top + dim) + 'px';
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style.display = '';
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}
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});
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// load JSON data.
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fd.loadJSON(json);
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// compute positions incrementally and animate.
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fd.compute()
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$(document).ready(function() {
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fd.animate({
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modes: ['linear'],
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transition: $jit.Trans.Elastic.easeOut,
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duration: 2500
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});
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});
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// end
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}
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