71 lines
2.2 KiB
JavaScript
71 lines
2.2 KiB
JavaScript
define(["leaflet"],
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function (L) {
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return L.TileLayer.Canvas.extend({
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setData: function (d) {
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this.data = d
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this.redraw()
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},
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drawTile: function (canvas, tilePoint) {
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if (!this.data)
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return
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var tileSize = this.options.tileSize
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var s = tilePoint.multiplyBy(tileSize)
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var map = this._map
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function project(coords) {
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var p = map.project(new L.LatLng(coords[0], coords[1]))
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return {x: p.x - s.x, y: p.y - s.y}
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}
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function projectNodes(d) {
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return { p: project([d.nodeinfo.location.latitude, d.nodeinfo.location.longitude]),
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o: d
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}
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}
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var margin = 150
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function onTile(d) {
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return d.p.x + margin > 0 ||
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d.p.y + margin > 0 ||
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d.p.x - tileSize - margin < 0 ||
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d.p.y - tileSize - margin < 0
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}
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var ctx = canvas.getContext("2d")
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var nodesOnline = this.data.online.map(projectNodes).filter(onTile)
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var nodesOffline = this.data.offline.map(projectNodes).filter(onTile)
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var nodesNew = this.data.new.map(projectNodes).filter(onTile)
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var nodesLost = this.data.lost.map(projectNodes).filter(onTile)
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var distance = 10
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ctx.font = "12px Roboto"
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ctx.textBaseline = "middle"
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ctx.textAlign = "left"
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ctx.lineWidth = 2.5
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function drawLabel(d) {
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ctx.strokeText(d.o.nodeinfo.hostname, d.p.x + distance, d.p.y)
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ctx.fillText(d.o.nodeinfo.hostname, d.p.x + distance, d.p.y)
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}
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ctx.fillStyle = "rgba(212, 62, 42, 0.6)"
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ctx.strokeStyle = "rgba(255, 255, 255, 0.6)"
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nodesOffline.forEach(drawLabel)
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ctx.fillStyle = "rgba(0, 0, 0, 0.6)"
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ctx.strokeStyle = "rgba(255, 255, 255, 0.9)"
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nodesOnline.forEach(drawLabel)
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ctx.fillStyle = "rgba(212, 62, 42, 0.6)"
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ctx.strokeStyle = "rgba(255, 255, 255, 0.9)"
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nodesLost.forEach(drawLabel)
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ctx.fillStyle = "rgba(0, 0, 0, 0.6)"
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ctx.strokeStyle = "rgba(255, 255, 255, 1.0)"
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nodesNew.forEach(drawLabel)
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}
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})
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})
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