820 lines
21 KiB
JavaScript
820 lines
21 KiB
JavaScript
define(["d3"], function (d3) {
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var margin = 200;
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var NODE_RADIUS = 15;
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var LINE_RADIUS = 12;
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return function (config, linkScale, sidebar, router) {
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var self = this;
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var canvas, ctx, screenRect;
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var nodesDict, linksDict;
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var zoomBehavior;
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var force;
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var el;
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var doAnimation = false;
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var intNodes = [];
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var intLinks = [];
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var highlight;
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var highlightedNodes = [];
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var highlightedLinks = [];
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var nodes = [];
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var uplinkNodes = [];
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var nonUplinkNodes = [];
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var unseenNodes = [];
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var unknownNodes = [];
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var savedPanZoom;
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var draggedNode;
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var LINK_DISTANCE = 70;
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function graphDiameter(nodes) {
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return Math.sqrt(nodes.length / Math.PI) * LINK_DISTANCE * 1.41;
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}
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function savePositions() {
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if (!localStorageTest()) {
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return;
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}
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var save = intNodes.map(function (d) {
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return {id: d.o.id, x: d.x, y: d.y};
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});
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localStorage.setItem("graph/nodeposition", JSON.stringify(save));
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}
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function nodeName(d) {
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if (d.o.node && d.o.node.nodeinfo) {
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return d.o.node.nodeinfo.hostname;
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} else {
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return d.o.id;
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}
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}
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function dragstart() {
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var e = translateXY(d3.mouse(el));
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var nodes = intNodes.filter(function (d) {
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return distancePoint(e, d) < NODE_RADIUS;
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});
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if (nodes.length === 0) {
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return;
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}
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draggedNode = nodes[0];
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d3.event.sourceEvent.stopPropagation();
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d3.event.sourceEvent.preventDefault();
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draggedNode.fixed |= 2;
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draggedNode.px = draggedNode.x;
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draggedNode.py = draggedNode.y;
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}
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function dragmove() {
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if (draggedNode) {
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var e = translateXY(d3.mouse(el));
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draggedNode.px = e.x;
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draggedNode.py = e.y;
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force.resume();
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}
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}
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function dragend() {
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if (draggedNode) {
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d3.event.sourceEvent.stopPropagation();
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d3.event.sourceEvent.preventDefault();
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draggedNode.fixed &= ~2;
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draggedNode = undefined;
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}
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}
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var draggableNode = d3.behavior.drag()
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.on("dragstart", dragstart)
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.on("drag", dragmove)
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.on("dragend", dragend);
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function animatePanzoom(translate, scale) {
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var translateP = zoomBehavior.translate();
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var scaleP = zoomBehavior.scale();
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if (!doAnimation) {
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zoomBehavior.translate(translate);
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zoomBehavior.scale(scale);
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panzoom();
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} else {
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var start = {x: translateP[0], y: translateP[1], scale: scaleP};
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var end = {x: translate[0], y: translate[1], scale: scale};
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var interpolate = d3.interpolateObject(start, end);
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var duration = 500;
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var ease = d3.ease("cubic-in-out");
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d3.timer(function (t) {
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if (t >= duration) {
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return true;
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}
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var v = interpolate(ease(t / duration));
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zoomBehavior.translate([v.x, v.y]);
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zoomBehavior.scale(v.scale);
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panzoom();
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return false;
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});
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}
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}
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function onPanZoom() {
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savedPanZoom = {
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translate: zoomBehavior.translate(),
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scale: zoomBehavior.scale()
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};
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panzoom();
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}
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function panzoom() {
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var translate = zoomBehavior.translate();
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var scale = zoomBehavior.scale();
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panzoomReal(translate, scale);
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}
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function panzoomReal(translate, scale) {
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screenRect = {
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left: -translate[0] / scale, top: -translate[1] / scale,
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right: (canvas.width - translate[0]) / scale,
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bottom: (canvas.height - translate[1]) / scale
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};
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requestAnimationFrame(redraw);
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}
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function getSize() {
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var sidebarWidth = sidebar();
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var width = el.offsetWidth - sidebarWidth;
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var height = el.offsetHeight;
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return [width, height];
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}
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function panzoomTo(a, b) {
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var sidebarWidth = sidebar();
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var size = getSize();
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var targetWidth = Math.max(1, b[0] - a[0]);
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var targetHeight = Math.max(1, b[1] - a[1]);
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var scaleX = size[0] / targetWidth;
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var scaleY = size[1] / targetHeight;
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var scaleMax = zoomBehavior.scaleExtent()[1];
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var scale = 0.5 * Math.min(scaleMax, Math.min(scaleX, scaleY));
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var centroid = [(a[0] + b[0]) / 2, (a[1] + b[1]) / 2];
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var x = -centroid[0] * scale + size[0] / 2;
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var y = -centroid[1] * scale + size[1] / 2;
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var translate = [x + sidebarWidth, y];
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animatePanzoom(translate, scale);
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}
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function updateHighlight(nopanzoom) {
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highlightedNodes = [];
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highlightedLinks = [];
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if (highlight !== undefined) {
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if (highlight.type === "node") {
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var n = nodesDict[highlight.o.nodeinfo.node_id];
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if (n) {
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highlightedNodes = [n];
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if (!nopanzoom) {
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panzoomTo([n.x, n.y], [n.x, n.y]);
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}
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}
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return;
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} else if (highlight.type === "link") {
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var l = linksDict[highlight.o.id];
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if (l) {
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highlightedLinks = [l];
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if (!nopanzoom) {
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var x = d3.extent([l.source, l.target], function (d) {
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return d.x;
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});
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var y = d3.extent([l.source, l.target], function (d) {
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return d.y;
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});
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panzoomTo([x[0], y[0]], [x[1], y[1]]);
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}
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}
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return;
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}
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}
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if (!nopanzoom) {
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if (!savedPanZoom) {
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panzoomTo([0, 0], force.size());
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} else {
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animatePanzoom(savedPanZoom.translate, savedPanZoom.scale);
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}
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}
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}
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function drawLabel(d) {
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var neighbours = d.neighbours.filter(function (d) {
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return d.link.o.type !== "fastd" && d.link.o.type !== "L2TP";
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});
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var sum = neighbours.reduce(function (a, b) {
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return [a[0] + b.node.x, a[1] + b.node.y];
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}, [0, 0]);
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var sumCos = sum[0] - d.x * neighbours.length;
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var sumSin = sum[1] - d.y * neighbours.length;
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var angle = Math.PI / 2;
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if (neighbours.length > 0) {
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angle = Math.PI + Math.atan2(sumSin, sumCos);
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}
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var cos = Math.cos(angle);
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var sin = Math.sin(angle);
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var width = d.labelWidth;
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var height = d.labelHeight;
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var x = d.x + d.labelA * Math.pow(Math.abs(cos), 2 / 5) * Math.sign(cos) - width / 2;
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var y = d.y + d.labelB * Math.pow(Math.abs(sin), 2 / 5) * Math.sign(sin) - height / 2;
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ctx.drawImage(d.label, x, y, width, height);
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}
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function visibleLinks(d) {
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return (d.source.x > screenRect.left && d.source.x < screenRect.right &&
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d.source.y > screenRect.top && d.source.y < screenRect.bottom) ||
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(d.target.x > screenRect.left && d.target.x < screenRect.right &&
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d.target.y > screenRect.top && d.target.y < screenRect.bottom);
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}
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function visibleNodes(d) {
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return d.x + margin > screenRect.left && d.x - margin < screenRect.right &&
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d.y + margin > screenRect.top && d.y - margin < screenRect.bottom;
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}
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function drawNode(color, radius, scale, r) {
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var node = document.createElement("canvas");
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node.height = node.width = scale * radius * 8 * r;
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var nctx = node.getContext("2d");
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nctx.scale(scale * r, scale * r);
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nctx.save();
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nctx.translate(-node.width / scale, -node.height / scale);
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nctx.lineWidth = radius;
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nctx.beginPath();
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nctx.moveTo(radius, 0);
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nctx.arc(0, 0, radius, 0, 2 * Math.PI);
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nctx.strokeStyle = "rgba(255, 0, 0, 1)";
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nctx.shadowOffsetX = node.width * 1.5;
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nctx.shadowOffsetY = node.height * 1.5 + 3;
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nctx.shadowBlur = 12;
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nctx.shadowColor = "rgba(0, 0, 0, 0.16)";
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nctx.stroke();
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nctx.shadowOffsetX = node.width * 1.5;
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nctx.shadowOffsetY = node.height * 1.5 + 3;
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nctx.shadowBlur = 12;
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nctx.shadowColor = "rgba(0, 0, 0, 0.23)";
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nctx.stroke();
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nctx.restore();
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nctx.translate(node.width / 2 / scale / r, node.height / 2 / scale / r);
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nctx.beginPath();
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nctx.moveTo(radius, 0);
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nctx.arc(0, 0, radius, 0, 2 * Math.PI);
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nctx.strokeStyle = color;
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nctx.lineWidth = radius;
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nctx.stroke();
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return node;
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}
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function redraw() {
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var r = window.devicePixelRatio;
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var translate = zoomBehavior.translate();
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var scale = zoomBehavior.scale();
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var links = intLinks.filter(visibleLinks);
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ctx.save();
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ctx.setTransform(1, 0, 0, 1, 0, 0);
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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ctx.restore();
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ctx.save();
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ctx.translate(translate[0], translate[1]);
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ctx.scale(scale, scale);
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var clientColor = "rgba(230, 50, 75, 1.0)";
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var unknownColor = "#D10E2A";
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var nonUplinkColor = "#F2E3C6";
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var uplinkColor = "#5BAAEB";
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var unseenColor = "#FFA726";
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var highlightColor = "rgba(252, 227, 198, 0.15)";
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var nodeRadius = 6;
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var cableColor = "#50B0F0";
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// -- draw links --
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ctx.save();
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links.forEach(function (d) {
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var dx = d.target.x - d.source.x;
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var dy = d.target.y - d.source.y;
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var a = Math.sqrt(dx * dx + dy * dy);
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dx /= a;
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dy /= a;
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ctx.beginPath();
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ctx.moveTo(d.source.x + dx * nodeRadius, d.source.y + dy * nodeRadius);
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ctx.lineTo(d.target.x - dx * nodeRadius, d.target.y - dy * nodeRadius);
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ctx.strokeStyle = d.o.type === "Kabel" ? cableColor : d.color;
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ctx.globalAlpha = d.o.type === "fastd" || d.o.type === "L2TP" ? 0.1 : 0.8;
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ctx.lineWidth = d.o.type === "fastd" || d.o.type === "L2TP" ? 1.5 : 2.5;
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ctx.stroke();
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});
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ctx.restore();
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// -- draw unknown nodes --
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ctx.beginPath();
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unknownNodes.filter(visibleNodes).forEach(function (d) {
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ctx.moveTo(d.x + nodeRadius, d.y);
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ctx.arc(d.x, d.y, nodeRadius, 0, 2 * Math.PI);
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});
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ctx.strokeStyle = unknownColor;
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ctx.lineWidth = nodeRadius;
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ctx.stroke();
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// -- draw nodes --
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ctx.save();
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ctx.scale(1 / scale / r, 1 / scale / r);
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var nonUplinkNode = drawNode(nonUplinkColor, nodeRadius, scale, r);
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nonUplinkNodes.filter(visibleNodes).forEach(function (d) {
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ctx.drawImage(nonUplinkNode, scale * r * d.x - nonUplinkNode.width / 2, scale * r * d.y - nonUplinkNode.height / 2);
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});
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var uplinkNode = drawNode(uplinkColor, nodeRadius, scale, r);
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uplinkNodes.filter(visibleNodes).forEach(function (d) {
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ctx.drawImage(uplinkNode, scale * r * d.x - uplinkNode.width / 2, scale * r * d.y - uplinkNode.height / 2);
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});
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var unseenNode = drawNode(unseenColor, nodeRadius, scale, r);
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unseenNodes.filter(visibleNodes).forEach(function (d) {
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ctx.drawImage(unseenNode, scale * r * d.x - unseenNode.width / 2, scale * r * d.y - unseenNode.height / 2);
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});
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ctx.restore();
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// -- draw clients --
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ctx.save();
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ctx.beginPath();
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nodes.filter(visibleNodes).forEach(function (d) {
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var clients = d.o.node.statistics.clients;
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if (clients === 0) {
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return;
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}
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var startDistance = 16;
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var radius = 3;
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var a = 1.2;
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var startAngle = Math.PI;
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for (var orbit = 0, i = 0; i < clients; orbit++) {
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var distance = startDistance + orbit * 2 * radius * a;
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var n = Math.floor((Math.PI * distance) / (a * radius));
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var delta = clients - i;
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for (var j = 0; j < Math.min(delta, n); i++, j++) {
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var angle = 2 * Math.PI / n * j;
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var x = d.x + distance * Math.cos(angle + startAngle);
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var y = d.y + distance * Math.sin(angle + startAngle);
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ctx.moveTo(x, y);
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ctx.arc(x, y, radius, 0, 2 * Math.PI);
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}
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}
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});
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ctx.fillStyle = clientColor;
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ctx.fill();
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ctx.restore();
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// -- draw node highlights --
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if (highlightedNodes.length) {
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ctx.save();
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ctx.shadowColor = "rgba(255, 255, 255, 1.0)";
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ctx.shadowBlur = 10 * nodeRadius;
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ctx.shadowOffsetX = 0;
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ctx.shadowOffsetY = 0;
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ctx.globalCompositeOperation = "lighten";
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ctx.fillStyle = highlightColor;
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ctx.beginPath();
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highlightedNodes.forEach(function (d) {
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ctx.moveTo(d.x + 5 * nodeRadius, d.y);
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ctx.arc(d.x, d.y, 5 * nodeRadius, 0, 2 * Math.PI);
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});
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ctx.fill();
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ctx.restore();
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}
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// -- draw link highlights --
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if (highlightedLinks.length) {
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ctx.save();
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ctx.lineWidth = 2 * 5 * nodeRadius;
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ctx.shadowColor = "rgba(255, 255, 255, 1.0)";
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ctx.shadowBlur = 10 * nodeRadius;
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ctx.shadowOffsetX = 0;
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ctx.shadowOffsetY = 0;
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ctx.globalCompositeOperation = "lighten";
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ctx.strokeStyle = highlightColor;
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ctx.lineCap = "round";
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ctx.beginPath();
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highlightedLinks.forEach(function (d) {
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ctx.moveTo(d.source.x, d.source.y);
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ctx.lineTo(d.target.x, d.target.y);
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});
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ctx.stroke();
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ctx.restore();
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}
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// -- draw labels --
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if (scale > 0.9) {
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intNodes.filter(visibleNodes).forEach(drawLabel, scale);
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}
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ctx.restore();
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}
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function tickEvent() {
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redraw();
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}
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function resizeCanvas() {
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var r = window.devicePixelRatio;
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canvas.width = el.offsetWidth * r;
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canvas.height = el.offsetHeight * r;
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canvas.style.width = el.offsetWidth + "px";
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canvas.style.height = el.offsetHeight + "px";
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ctx.setTransform(1, 0, 0, 1, 0, 0);
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ctx.scale(r, r);
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requestAnimationFrame(redraw);
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}
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function distance(a, b) {
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return Math.pow(a.x - b.x, 2) + Math.pow(a.y - b.y, 2);
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}
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function distancePoint(a, b) {
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return Math.sqrt(distance(a, b));
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}
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function distanceLink(p, a, b) {
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/* http://stackoverflow.com/questions/849211 */
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var l2 = distance(a, b);
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if (l2 === 0) {
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return distance(p, a);
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}
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var t = ((p.x - a.x) * (b.x - a.x) + (p.y - a.y) * (b.y - a.y)) / l2;
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if (t < 0) {
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return distance(p, a);
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}
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if (t > 1) {
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return distance(p, b);
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}
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return Math.sqrt(distance(p, {
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x: a.x + t * (b.x - a.x),
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y: a.y + t * (b.y - a.y)
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}));
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}
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function translateXY(d) {
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var translate = zoomBehavior.translate();
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var scale = zoomBehavior.scale();
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return {
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x: (d[0] - translate[0]) / scale,
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y: (d[1] - translate[1]) / scale
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};
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}
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function onClick() {
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if (d3.event.defaultPrevented) {
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return;
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}
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var e = translateXY(d3.mouse(el));
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|
|
var nodes = intNodes.filter(function (d) {
|
|
return distancePoint(e, d) < NODE_RADIUS;
|
|
});
|
|
|
|
if (nodes.length > 0) {
|
|
router.node(nodes[0].o.node)();
|
|
return;
|
|
}
|
|
|
|
var links = intLinks.filter(function (d) {
|
|
return d.o.type !== "fastd" && d.o.type !== "L2TP";
|
|
}).filter(function (d) {
|
|
return distanceLink(e, d.source, d.target) < LINE_RADIUS;
|
|
});
|
|
|
|
if (links.length > 0) {
|
|
router.link(links[0].o)();
|
|
}
|
|
}
|
|
|
|
function zoom(z, scale) {
|
|
var size = getSize();
|
|
var newSize = [size[0] / scale, size[1] / scale];
|
|
|
|
var sidebarWidth = sidebar();
|
|
var delta = [size[0] - newSize[0], size[1] - newSize[1]];
|
|
var translate = z.translate();
|
|
var translateNew = [sidebarWidth + (translate[0] - sidebarWidth - delta[0] / 2) * scale, (translate[1] - delta[1] / 2) * scale];
|
|
|
|
animatePanzoom(translateNew, z.scale() * scale);
|
|
}
|
|
|
|
function keyboardZoom(z) {
|
|
return function () {
|
|
var e = d3.event;
|
|
|
|
if (e.altKey || e.ctrlKey || e.metaKey) {
|
|
return;
|
|
}
|
|
|
|
if (e.keyCode === 43) {
|
|
zoom(z, 1.41);
|
|
}
|
|
|
|
if (e.keyCode === 45) {
|
|
zoom(z, 1 / 1.41);
|
|
}
|
|
};
|
|
}
|
|
|
|
el = document.createElement("div");
|
|
el.classList.add("graph");
|
|
|
|
zoomBehavior = d3.behavior.zoom()
|
|
.scaleExtent([1 / 3, 3])
|
|
.on("zoom", onPanZoom)
|
|
.translate([sidebar(), 0]);
|
|
|
|
canvas = d3.select(el)
|
|
.attr("tabindex", 1)
|
|
.on("keypress", keyboardZoom(zoomBehavior))
|
|
.call(zoomBehavior)
|
|
.append("canvas")
|
|
.on("click", onClick)
|
|
.call(draggableNode)
|
|
.node();
|
|
|
|
ctx = canvas.getContext("2d");
|
|
|
|
force = d3.layout.force()
|
|
.charge(-250)
|
|
.gravity(0.1)
|
|
.linkDistance(function (d) {
|
|
if (d.o.type === "fastd" || d.o.type === "L2TP") {
|
|
return 0;
|
|
} else {
|
|
return LINK_DISTANCE;
|
|
}
|
|
})
|
|
.linkStrength(function (d) {
|
|
if (d.o.type === "fastd" || d.o.type === "L2TP") {
|
|
return 0;
|
|
} else {
|
|
return Math.max(0.5, 1 / d.o.tq);
|
|
}
|
|
})
|
|
.on("tick", tickEvent)
|
|
.on("end", savePositions);
|
|
|
|
window.addEventListener("resize", resizeCanvas);
|
|
|
|
panzoom();
|
|
|
|
self.setData = function (data) {
|
|
var oldNodes = {};
|
|
|
|
intNodes.forEach(function (d) {
|
|
oldNodes[d.o.id] = d;
|
|
});
|
|
|
|
intNodes = data.graph.nodes.map(function (d) {
|
|
var e;
|
|
if (d.id in oldNodes) {
|
|
e = oldNodes[d.id];
|
|
} else {
|
|
e = {};
|
|
}
|
|
|
|
e.o = d;
|
|
|
|
return e;
|
|
});
|
|
|
|
var newNodesDict = {};
|
|
|
|
intNodes.forEach(function (d) {
|
|
newNodesDict[d.o.id] = d;
|
|
});
|
|
|
|
var oldLinks = {};
|
|
|
|
intLinks.forEach(function (d) {
|
|
oldLinks[d.o.id] = d;
|
|
});
|
|
|
|
intLinks = data.graph.links.map(function (d) {
|
|
var e;
|
|
if (d.id in oldLinks) {
|
|
e = oldLinks[d.id];
|
|
} else {
|
|
e = {};
|
|
}
|
|
|
|
e.o = d;
|
|
e.source = newNodesDict[d.source.id];
|
|
e.target = newNodesDict[d.target.id];
|
|
|
|
if (d.type === "fastd" || d.type === "L2TP") {
|
|
e.color = "rgba(255, 255, 255, " + (0.6 / d.tq) + ")";
|
|
} else {
|
|
e.color = linkScale(d.tq).hex();
|
|
}
|
|
|
|
return e;
|
|
});
|
|
|
|
linksDict = {};
|
|
nodesDict = {};
|
|
|
|
intNodes.forEach(function (d) {
|
|
d.neighbours = {};
|
|
|
|
if (d.o.node) {
|
|
nodesDict[d.o.node.nodeinfo.node_id] = d;
|
|
}
|
|
|
|
var name = nodeName(d);
|
|
|
|
var offset = 5;
|
|
var lineWidth = 3;
|
|
var buffer = document.createElement("canvas");
|
|
var r = window.devicePixelRatio;
|
|
var bctx = buffer.getContext("2d");
|
|
bctx.font = "11px Roboto";
|
|
var width = bctx.measureText(name).width;
|
|
var scale = zoomBehavior.scaleExtent()[1] * r;
|
|
buffer.width = (width + 2 * lineWidth) * scale;
|
|
buffer.height = (16 + 2 * lineWidth) * scale;
|
|
bctx.scale(scale, scale);
|
|
bctx.textBaseline = "middle";
|
|
bctx.textAlign = "center";
|
|
bctx.fillStyle = "rgba(242, 227, 198, 1.0)";
|
|
bctx.shadowColor = "rgba(0, 0, 0, 1)";
|
|
bctx.shadowBlur = 5;
|
|
bctx.fillText(name, buffer.width / (2 * scale), buffer.height / (2 * scale));
|
|
|
|
d.label = buffer;
|
|
d.labelWidth = buffer.width / scale;
|
|
d.labelHeight = buffer.height / scale;
|
|
d.labelA = offset + buffer.width / (2 * scale);
|
|
d.labelB = offset + buffer.height / (2 * scale);
|
|
});
|
|
|
|
intLinks.forEach(function (d) {
|
|
d.source.neighbours[d.target.o.id] = {node: d.target, link: d};
|
|
d.target.neighbours[d.source.o.id] = {node: d.source, link: d};
|
|
|
|
if (d.o.source && d.o.target) {
|
|
linksDict[d.o.id] = d;
|
|
}
|
|
});
|
|
|
|
intNodes.forEach(function (d) {
|
|
d.neighbours = Object.keys(d.neighbours).map(function (k) {
|
|
return d.neighbours[k];
|
|
});
|
|
});
|
|
|
|
nodes = intNodes.filter(function (d) {
|
|
return !d.o.unseen && d.o.node;
|
|
});
|
|
uplinkNodes = nodes.filter(function (d) {
|
|
return d.o.node.flags.uplink;
|
|
});
|
|
nonUplinkNodes = nodes.filter(function (d) {
|
|
return !d.o.node.flags.uplink;
|
|
});
|
|
unseenNodes = intNodes.filter(function (d) {
|
|
return d.o.unseen && d.o.node;
|
|
});
|
|
unknownNodes = intNodes.filter(function (d) {
|
|
return !d.o.node;
|
|
});
|
|
|
|
if (localStorageTest()) {
|
|
var save = JSON.parse(localStorage.getItem("graph/nodeposition"));
|
|
|
|
if (save) {
|
|
var nodePositions = {};
|
|
save.forEach(function (d) {
|
|
nodePositions[d.id] = d;
|
|
});
|
|
|
|
intNodes.forEach(function (d) {
|
|
if (nodePositions[d.o.id] && (d.x === undefined || d.y === undefined)) {
|
|
d.x = nodePositions[d.o.id].x;
|
|
d.y = nodePositions[d.o.id].y;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
var diameter = graphDiameter(intNodes);
|
|
|
|
force.nodes(intNodes)
|
|
.links(intLinks)
|
|
.size([diameter, diameter]);
|
|
|
|
updateHighlight(true);
|
|
|
|
force.start();
|
|
resizeCanvas();
|
|
};
|
|
|
|
self.resetView = function () {
|
|
highlight = undefined;
|
|
updateHighlight();
|
|
doAnimation = true;
|
|
};
|
|
|
|
self.gotoNode = function (d) {
|
|
highlight = {type: "node", o: d};
|
|
updateHighlight();
|
|
doAnimation = true;
|
|
};
|
|
|
|
self.gotoLink = function (d) {
|
|
highlight = {type: "link", o: d};
|
|
updateHighlight();
|
|
doAnimation = true;
|
|
};
|
|
|
|
self.destroy = function () {
|
|
force.stop();
|
|
canvas.remove();
|
|
force = null;
|
|
|
|
if (el.parentNode) {
|
|
el.parentNode.removeChild(el);
|
|
}
|
|
};
|
|
|
|
self.render = function (d) {
|
|
d.appendChild(el);
|
|
resizeCanvas();
|
|
updateHighlight();
|
|
};
|
|
|
|
return self;
|
|
};
|
|
});
|