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1
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define(['leaflet', 'rbush', 'helper'], |
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2
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function (L, rbush, helper) { |
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3
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'use strict'; |
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4
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5
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return L.GridLayer.extend({ |
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6
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mapRTree: function mapRTree(d) { |
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7
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return { |
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8
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minX: d.location.latitude, minY: d.location.longitude, |
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9
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maxX: d.location.latitude, maxY: d.location.longitude, |
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10
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node: d |
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11
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}; |
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12
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}, |
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13
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setData: function (data) { |
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14
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var rtreeOnlineAll = rbush(9); |
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15
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16
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this.data = rtreeOnlineAll.load(data.nodes.online.filter(helper.hasLocation).map(this.mapRTree)); |
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17
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18
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// pre-calculate start angles |
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19
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this.data.all().forEach(function (n) { |
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20
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n.startAngle = (parseInt(n.node.node_id.substr(10, 2), 16) / 255) * 2 * Math.PI; |
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21
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}); |
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22
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this.redraw(); |
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23
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}, |
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24
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createTile: function (tilePoint) { |
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25
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var tile = L.DomUtil.create('canvas', 'leaflet-tile'); |
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26
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27
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var tileSize = this.options.tileSize; |
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28
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tile.width = tileSize; |
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29
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tile.height = tileSize; |
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30
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31
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if (!this.data) { |
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32
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return tile; |
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33
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} |
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34
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35
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var ctx = tile.getContext('2d'); |
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36
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var s = tilePoint.multiplyBy(tileSize); |
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37
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var map = this._map; |
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38
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39
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var margin = 50; |
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40
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var bbox = helper.getTileBBox(s, map, tileSize, margin); |
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41
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42
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var nodes = this.data.search(bbox); |
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43
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44
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if (nodes.length === 0) { |
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45
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return tile; |
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46
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} |
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47
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48
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var startDistance = 10; |
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49
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50
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nodes.forEach(function (d) { |
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51
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var p = map.project([d.node.location.latitude, d.node.location.longitude]); |
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52
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53
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p.x -= s.x; |
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54
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p.y -= s.y; |
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55
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56
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helper.positionClients(ctx, p, d.startAngle, d.node, startDistance); |
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57
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}); |
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58
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59
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return tile; |
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60
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} |
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61
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}); |
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62
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}); |
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63
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ffrgb /
meshviewer
