forcegraph.js ➔ ... ➔ d3.distance - Code Metrics - Inspection of "[WIP] init d3 v4" - ffrgb/meshviewer - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — develop (#75)

unknown

created 2017-02-23 21:30 UTC

forcegraph.js ➔ ... ➔ d3.distance A

↳ Parent: Project

Complexity

Conditions	3
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
c	0
b	0
f	0
nc	2
dl	0
loc	6
rs	9.4285
nop	1

define(['d3', 'helper'], function (d3, helper) {
  'use strict';

  return function (config, linkScale, sidebar, router) {
    var self = this;
    var el;
    var canvas;
    var ctx;
    var force;
    var forceLink;

    var scale = 1;
    var translateX = 0;
    var translateY = 0;

    var intNodes = [];
    var dictNodes = {};
    var intLinks = [];

    var highlight;

    const nonUplinkColor = '#F2E3C6';
    const locationColor = '#00ff00';
    const noLocationColor = '#0000ff';
    const clientColor = 'rgba(230, 50, 75, 1.0)';
    const cableColor = '#50B0F0';
    const highlightColor = 'rgba(255, 255, 255, 0.2)';

    const NODE_RADIUS = 15;
    const LINE_RADIUS = 12;

    function resizeCanvas() {
      var r = window.devicePixelRatio;
      canvas.width = el.offsetWidth * r;
      canvas.height = el.offsetHeight * r;
      canvas.style.width = el.offsetWidth + 'px';
      canvas.style.height = el.offsetHeight + 'px';
      ctx.setTransform(1, 0, 0, 1, 0, 0);
      ctx.scale(r, r);
    }

    function onClick() {
      if (d3.event.defaultPrevented) {
        return;
      }

      var e = translateXY(d3.event);

      var n = intNodes.filter(function (d) {
        return distancePoint(e, d) < NODE_RADIUS;
      });

      if (n.length > 0) {
        router.node(n[0].o.node)();
        return;
      }

      var links = intLinks
        /* Disable Clickable VPN
        .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 translateXY(d) {
      return {
        x: (d.x - translateX) / scale,
        y: (d.y - translateY) / scale
      };
    }

    function distance(a, b) {
      return Math.pow(a.x - b.x, 2) + Math.pow(a.y - b.y, 2);
    }

    function distancePoint(a, b) {
      return Math.sqrt(distance(a, b));
    }

    function distanceLink(p, a, b) {
      /* http://stackoverflow.com/questions/849211 */
      var l2 = distance(a, b);
      if (l2 === 0) {
        return distance(p, a);
      }
      var t = ((p.x - a.x) * (b.x - a.x) + (p.y - a.y) * (b.y - a.y)) / l2;
      if (t < 0) {
        return distance(p, a);
      }
      if (t > 1) {
        return distance(p, b);
      }
      return distancePoint(p, {
        x: a.x + t * (b.x - a.x),
        y: a.y + t * (b.y - a.y)
      });
    }

    function drawLink(d) {
      ctx.beginPath();
      ctx.moveTo(d.source.x, d.source.y);
      var to = [d.target.x, d.target.y];
      if (highlight && highlight.type === 'link' && d.o === highlight.o) {
        ctx.lineTo(to[0], to[1]);
        ctx.strokeStyle = highlightColor;
        ctx.lineWidth = LINE_RADIUS * 2;
        ctx.lineCap = 'round';
        ctx.stroke();
        to = [d.source.x, d.source.y];
      }
      ctx.lineTo(to[0], to[1]);
      ctx.strokeStyle = d.o.type === 'Kabel' ? cableColor : d.color;
      if (d.o.type === 'fastd' || d.o.type === 'L2TP') {
        ctx.globalAlpha = 0.2;
        ctx.lineWidth = 1.5;
      } else {
        ctx.globalAlpha = 0.8;
        ctx.lineWidth = 2.5;
      }
      ctx.stroke();
    }

    function drawNode(d) {
      ctx.beginPath();
      if (highlight && highlight.type === 'node' && d.o.node === highlight.o) {
        ctx.arc(d.x, d.y, NODE_RADIUS * 1.5, 0, 2 * Math.PI);
        ctx.fillStyle = highlightColor;
        ctx.fill();
        ctx.beginPath();
      }
      ctx.moveTo(d.x + 3, d.y);
      ctx.arc(d.x, d.y, 6, 0, 2 * Math.PI);
      ctx.fillStyle = noLocationColor;
      if (d.o.node && d.o.node.nodeinfo && d.o.node.nodeinfo.location) {
        ctx.fillStyle = locationColor;
      }
      ctx.strokeStyle = nonUplinkColor;
      ctx.lineWidth = 5;
      ctx.globalAlpha = 1;
      ctx.fill();
      ctx.stroke();
      if (scale > 1) {
        ctx.beginPath();
        helper.positionClients(ctx, d, Math.PI, d.o.node.statistics.clients, 15);
        ctx.fillStyle = clientColor;
        ctx.fill();
        ctx.beginPath();
        var name = d.o.node_id;
        if (d.o.node && d.o.node.nodeinfo) {
          name = d.o.node.nodeinfo.hostname;
        }
        ctx.textAlign = 'center';
        ctx.fillStyle = '#fff';
        ctx.fillText(name, d.x, d.y + 20);
      }
    }

    function redraw() {
      ctx.save();
      ctx.clearRect(0, 0, canvas.width, canvas.height);
      ctx.translate(translateX, translateY);
      ctx.scale(scale, scale);

      intLinks.forEach(drawLink);
      intNodes.forEach(drawNode);

      ctx.restore();
    }

    el = document.createElement('div');
    el.classList.add('graph');

    forceLink = d3.forceLink()
     .distance(function (d) {
       if (d.o.type === 'fastd' || d.o.type === 'L2TP') {
         return 0;
       }
       return 75;
     })
     .strength(function (d) {
       if (d.o.type === 'fastd' || d.o.type === 'L2TP') {
         return 0.02;
       }
       return Math.max(0.5, 1 / d.o.tq);
     });

    var zoom = d3.zoom()
         .scaleExtent([1 / 3, 3])
         .on('zoom', function () {
           scale = d3.event.transform.k;
           translateX = d3.event.transform.x;
           translateY = d3.event.transform.y;
           redraw();
         });


    force = d3.forceSimulation()
      .force('link', forceLink)
      .force('charge', d3.forceManyBody())
      .on('tick', redraw);

    var drag = d3.drag()
      .subject(function () {
        if (!d3.event.active) {
          force.alphaTarget(0.1).restart();
        }
        var mouse = translateXY(d3.event);
        var n = intNodes.filter(function (node) {
          return distancePoint(mouse, node) < NODE_RADIUS;
        });

        if (n.length > 0) {
          return n[0];
        }
        return undefined;
      })
      .on('drag', function () {
        d3.event.subject.x = d3.event.x;
        d3.event.subject.y = d3.event.y;
      })
      .on('end', function () {
        if (!d3.event.active) {
          force.alphaTarget(0);
        }
      });

    canvas = d3.select(el)
      .append('canvas')
      .on('click', onClick)
      .call(drag)
      .call(zoom)
      .node();

    ctx = canvas.getContext('2d');

    window.addEventListener('resize', function () {
      resizeCanvas();
      redraw();
    });

    self.setData = function setData(data) {
      intNodes = data.graph.nodes.map(function (d) {
        var e;
        if (d.id in dictNodes) {
          e = dictNodes[d.id];
        } else {
          e = {};
          dictNodes[d.id] = e;
        }

        e.o = d;

        return e;
      });

      intLinks = data.graph.links.map(function (d) {
        var e = {};
        e.o = d;
        e.source = dictNodes[d.source.id];
        e.target = dictNodes[d.target.id];
        e.color = linkScale(d.tq).hex();

        return e;
      });

      force.nodes(intNodes);
      forceLink.links(intLinks);

      force.restart();
      resizeCanvas();
    };

    self.resetView = function resetView() {
      highlight = null;
      redraw();
    };

    self.gotoNode = function gotoNode(d) {
      highlight = { type: 'node', o: d };
      redraw();
    };

    self.gotoLink = function gotoLink(d) {
      highlight = { type: 'link', o: d };
      redraw();
    };

    self.destroy = function destroy() {
      force.stop();
      canvas.remove();
      force = null;

      if (el.parentNode) {
        el.parentNode.removeChild(el);
      }
    };

    self.render = function render(d) {
      d.appendChild(el);
      resizeCanvas();
    };

    return self;
  };
});


1			define(['d3', 'helper'], function (d3, helper) {
2			'use strict';
3
4			return function (config, linkScale, sidebar, router) {
5			var self = this;
6			var el;
7			var canvas;
8			var ctx;
9			var force;
10			var forceLink;
11
12			var scale = 1;
13			var translateX = 0;
14			var translateY = 0;
15
16			var intNodes = [];
17			var dictNodes = {};
18			var intLinks = [];
19
20			var highlight;
21
22			const nonUplinkColor = '#F2E3C6';
23			const locationColor = '#00ff00';
24			const noLocationColor = '#0000ff';
25			const clientColor = 'rgba(230, 50, 75, 1.0)';
26			const cableColor = '#50B0F0';
27			const highlightColor = 'rgba(255, 255, 255, 0.2)';
28
29			const NODE_RADIUS = 15;
30			const LINE_RADIUS = 12;
31
32			function resizeCanvas() {
33			var r = window.devicePixelRatio;
34			canvas.width = el.offsetWidth * r;
35			canvas.height = el.offsetHeight * r;
36			canvas.style.width = el.offsetWidth + 'px';
37			canvas.style.height = el.offsetHeight + 'px';
38			ctx.setTransform(1, 0, 0, 1, 0, 0);
39			ctx.scale(r, r);
40			}
41
42			function onClick() {
43			if (d3.event.defaultPrevented) {
44			return;
45			}
46
47			var e = translateXY(d3.event);
48
49			var n = intNodes.filter(function (d) {
50			return distancePoint(e, d) < NODE_RADIUS;
51			});
52
53			if (n.length > 0) {
54			router.node(n[0].o.node)();
55			return;
56			}
57
58			var links = intLinks
59			/* Disable Clickable VPN
60			.filter(function (d) {
61			return d.o.type !== 'fastd' && d.o.type !== 'L2TP';
62			})
63			*/
64			.filter(function (d) {
65			return distanceLink(e, d.source, d.target) < LINE_RADIUS;
66			});
67
68			if (links.length > 0) {
69			router.link(links[0].o)();
70			}
71			}
72
73			function translateXY(d) {
74			return {
75			x: (d.x - translateX) / scale,
76			y: (d.y - translateY) / scale
77			};
78			}
79
80			function distance(a, b) {
81			return Math.pow(a.x - b.x, 2) + Math.pow(a.y - b.y, 2);
82			}
83
84			function distancePoint(a, b) {
85			return Math.sqrt(distance(a, b));
86			}
87
88			function distanceLink(p, a, b) {
89			/* http://stackoverflow.com/questions/849211 */
90			var l2 = distance(a, b);
91			if (l2 === 0) {
92			return distance(p, a);
93			}
94			var t = ((p.x - a.x) * (b.x - a.x) + (p.y - a.y) * (b.y - a.y)) / l2;
95			if (t < 0) {
96			return distance(p, a);
97			}
98			if (t > 1) {
99			return distance(p, b);
100			}
101			return distancePoint(p, {
102			x: a.x + t * (b.x - a.x),
103			y: a.y + t * (b.y - a.y)
104			});
105			}
106
107			function drawLink(d) {
108			ctx.beginPath();
109			ctx.moveTo(d.source.x, d.source.y);
110			var to = [d.target.x, d.target.y];
111			if (highlight && highlight.type === 'link' && d.o === highlight.o) {
112			ctx.lineTo(to[0], to[1]);
113			ctx.strokeStyle = highlightColor;
114			ctx.lineWidth = LINE_RADIUS * 2;
115			ctx.lineCap = 'round';
116			ctx.stroke();
117			to = [d.source.x, d.source.y];
118			}
119			ctx.lineTo(to[0], to[1]);
120			ctx.strokeStyle = d.o.type === 'Kabel' ? cableColor : d.color;
121			if (d.o.type === 'fastd' \|\| d.o.type === 'L2TP') {
122			ctx.globalAlpha = 0.2;
123			ctx.lineWidth = 1.5;
124			} else {
125			ctx.globalAlpha = 0.8;
126			ctx.lineWidth = 2.5;
127			}
128			ctx.stroke();
129			}
130
131			function drawNode(d) {
132			ctx.beginPath();
133			if (highlight && highlight.type === 'node' && d.o.node === highlight.o) {
134			ctx.arc(d.x, d.y, NODE_RADIUS * 1.5, 0, 2 * Math.PI);
135			ctx.fillStyle = highlightColor;
136			ctx.fill();
137			ctx.beginPath();
138			}
139			ctx.moveTo(d.x + 3, d.y);
140			ctx.arc(d.x, d.y, 6, 0, 2 * Math.PI);
141			ctx.fillStyle = noLocationColor;
142			if (d.o.node && d.o.node.nodeinfo && d.o.node.nodeinfo.location) {
143			ctx.fillStyle = locationColor;
144			}
145			ctx.strokeStyle = nonUplinkColor;
146			ctx.lineWidth = 5;
147			ctx.globalAlpha = 1;
148			ctx.fill();
149			ctx.stroke();
150			if (scale > 1) {
151			ctx.beginPath();
152			helper.positionClients(ctx, d, Math.PI, d.o.node.statistics.clients, 15);
153			ctx.fillStyle = clientColor;
154			ctx.fill();
155			ctx.beginPath();
156			var name = d.o.node_id;
157			if (d.o.node && d.o.node.nodeinfo) {
158			name = d.o.node.nodeinfo.hostname;
159			}
160			ctx.textAlign = 'center';
161			ctx.fillStyle = '#fff';
162			ctx.fillText(name, d.x, d.y + 20);
163			}
164			}
165
166			function redraw() {
167			ctx.save();
168			ctx.clearRect(0, 0, canvas.width, canvas.height);
169			ctx.translate(translateX, translateY);
170			ctx.scale(scale, scale);
171
172			intLinks.forEach(drawLink);
173			intNodes.forEach(drawNode);
174
175			ctx.restore();
176			}
177
178			el = document.createElement('div');
179			el.classList.add('graph');
180
181			forceLink = d3.forceLink()
182			.distance(function (d) {
183			if (d.o.type === 'fastd' \|\| d.o.type === 'L2TP') {
184			return 0;
185			}
186			return 75;
187			})
188			.strength(function (d) {
189			if (d.o.type === 'fastd' \|\| d.o.type === 'L2TP') {
190			return 0.02;
191			}
192			return Math.max(0.5, 1 / d.o.tq);
193			});
194
195			var zoom = d3.zoom()
196			.scaleExtent([1 / 3, 3])
197			.on('zoom', function () {
198			scale = d3.event.transform.k;
199			translateX = d3.event.transform.x;
200			translateY = d3.event.transform.y;
201			redraw();
202			});
203
204
205			force = d3.forceSimulation()
206			.force('link', forceLink)
207			.force('charge', d3.forceManyBody())
208			.on('tick', redraw);
209
210			var drag = d3.drag()
211			.subject(function () {
212			if (!d3.event.active) {
213			force.alphaTarget(0.1).restart();
214			}
215			var mouse = translateXY(d3.event);
216			var n = intNodes.filter(function (node) {
217			return distancePoint(mouse, node) < NODE_RADIUS;
218			});
219
220			if (n.length > 0) {
221			return n[0];
222			}
223			return undefined;
224			})
225			.on('drag', function () {
226			d3.event.subject.x = d3.event.x;
227			d3.event.subject.y = d3.event.y;
228			})
229			.on('end', function () {
230			if (!d3.event.active) {
231			force.alphaTarget(0);
232			}
233			});
234
235			canvas = d3.select(el)
236			.append('canvas')
237			.on('click', onClick)
238			.call(drag)
239			.call(zoom)
240			.node();
241
242			ctx = canvas.getContext('2d');
243
244			window.addEventListener('resize', function () {
245			resizeCanvas();
246			redraw();
247			});
248
249			self.setData = function setData(data) {
250			intNodes = data.graph.nodes.map(function (d) {
251			var e;
252			if (d.id in dictNodes) {
253			e = dictNodes[d.id];
254			} else {
255			e = {};
256			dictNodes[d.id] = e;
257			}
258
259			e.o = d;
260
261			return e;
262			});
263
264			intLinks = data.graph.links.map(function (d) {
265			var e = {};
266			e.o = d;
267			e.source = dictNodes[d.source.id];
268			e.target = dictNodes[d.target.id];
269			e.color = linkScale(d.tq).hex();
270
271			return e;
272			});
273
274			force.nodes(intNodes);
275			forceLink.links(intLinks);
276
277			force.restart();
278			resizeCanvas();
279			};
280
281			self.resetView = function resetView() {
282			highlight = null;
283			redraw();
284			};
285
286			self.gotoNode = function gotoNode(d) {
287			highlight = { type: 'node', o: d };
288			redraw();
289			};
290
291			self.gotoLink = function gotoLink(d) {
292			highlight = { type: 'link', o: d };
293			redraw();
294			};
295
296			self.destroy = function destroy() {
297			force.stop();
298			canvas.remove();
299			force = null;
300
301			if (el.parentNode) {
302			el.parentNode.removeChild(el);
303			}
304			};
305
306			self.render = function render(d) {
307			d.appendChild(el);
308			resizeCanvas();
309			};
310
311			return self;
312			};
313			});
314

ffrgb / meshviewer

Pull Request — develop (#75)

forcegraph.js ➔ ... ➔ d3.distance A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like