| /*global d3*/ |
| |
| function createTopologyView() { |
| return d3.select('#svg-container').append('svg:svg').attr('viewBox', '0 0 1000 1000').attr('preserveAspectRatio', 'none'). |
| attr('id', 'viewbox').append('svg:g').attr('transform', 'translate(500 500)'); |
| } |
| |
| function drawHeader(model) { |
| d3.select('#lastUpdate').text(model.timestamp); |
| d3.select('#activeSwitches').text(model.edgeSwitches.length + model.aggregationSwitches.length + model.coreSwitches.length); |
| d3.select('#activeFlows').text(model.flows.length); |
| } |
| |
| function toRadians (angle) { |
| return angle * (Math.PI / 180); |
| } |
| |
| function drawTopology(svg, model) { |
| |
| var rings = [{ |
| radius: 3, |
| width: 4, |
| switches: model.edgeSwitches, |
| className: 'edge' |
| }, { |
| radius: 1.5, |
| width: 32, |
| switches: model.aggregationSwitches, |
| className: 'aggregation' |
| }, { |
| radius: 1, |
| width: 32, |
| switches: model.coreSwitches, |
| className: 'core' |
| }]; |
| |
| function ringEnter(data, i) { |
| if (!data.switches.length) { |
| return; |
| } |
| |
| var k = 360 / data.switches.length; |
| |
| d3.select(this).selectAll("g") |
| .data(d3.range(data.switches.length).map(function() { |
| return data; |
| })) |
| .enter().append("svg:g") |
| .attr("id", function (_, i) { |
| return data.className + i; |
| }) |
| .attr("transform", function(_, i) { |
| return "rotate(" + i * k + ")translate(" + data.radius * 150 + ")rotate(" + (-i * k) + ")"; |
| }) |
| .append("svg:circle") |
| .attr('class', data.className) |
| .attr("transform", function(_, i) { |
| var m = document.querySelector('svg').getTransformToElement().inverse(); |
| if (data.scale) { |
| m = m.scale(data.scale); |
| } |
| return "matrix( " + m.a + " " + m.b + " " + m.c + " " + m.d + " " + m.e + " " + m.f + " )"; |
| }) |
| .attr("x", -data.width / 2) |
| .attr("y", -data.width / 2) |
| // .attr("width", data.width) |
| // .attr("height", data.width) |
| .attr("r", data.width) |
| } |
| |
| var ring = svg.selectAll("g") |
| .data(rings) |
| .enter().append("svg:g") |
| .attr("class", "ring") |
| .each(ringEnter); |
| |
| function zoom(d, i) { |
| model.edgeSwitches.forEach(function (s) { |
| s.scale = 1; |
| }); |
| d.scale = 2; |
| |
| svg.selectAll('.edge').data(model.edgeSwitches).transition().duration(100) |
| // .attr("transform", function(data, i) { |
| // var m = document.querySelector('svg').getTransformToElement().inverse(); |
| // m = m.scale(data.scale); |
| // return "matrix( " + m.a + " " + m.b + " " + m.c + " " + m.d + " " + m.e + " " + m.f + " )"; |
| // }) |
| .attr("r", function (data, i) { |
| return rings[0].width * data.scale; |
| }) |
| } |
| |
| svg.selectAll('.edge').on('mouseover', zoom); |
| svg.selectAll('.edge').on('mousedown', zoom); |
| } |
| |
| function sync(svg) { |
| updateModel(function (model) { |
| |
| drawHeader(model); |
| drawTopology(svg, model); |
| |
| // do it again in 1s |
| setTimeout(function () { |
| sync(svg) |
| }, 5000); |
| }); |
| } |
| |
| sync(createTopologyView()); |