optmization
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jiaming
parent
bdea1ee5b4
commit
f5f50cccd8
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@ -12,20 +12,17 @@
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</template>
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<script>
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import defaultColors from '../../config/color.js'
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import colorsMixin from '../../mixins/colorsMixin.js'
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import canvasMixin from '../../mixins/canvasMixin.js'
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export default {
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name: 'RadarChart',
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mixins: [canvasMixin, colorsMixin],
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data () {
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return {
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ref: `radar-chart-${(new Date()).getTime()}`,
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canvasDom: '',
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canvasWH: [0, 0],
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ctx: '',
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arcOriginPos: [],
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defaultColors,
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defaultRadius: 0.8,
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defaultRingNum: 4,
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defaultRingType: 'circle',
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@ -76,46 +73,21 @@ export default {
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}
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},
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methods: {
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init () {
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const { $nextTick, initCanvas, calcOriginPos, data, draw } = this
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async init () {
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const { initCanvas, data, draw } = this
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$nextTick(e => {
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initCanvas()
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calcOriginPos()
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await initCanvas()
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data && draw()
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})
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},
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initCanvas () {
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const { $refs, ref, labelRef, canvasWH } = this
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const canvas = this.canvasDom = $refs[ref]
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this.labelDom = $refs[labelRef]
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canvasWH[0] = canvas.clientWidth
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canvasWH[1] = canvas.clientHeight
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canvas.setAttribute('width', canvasWH[0])
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canvas.setAttribute('height', canvasWH[1])
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this.ctx = canvas.getContext('2d')
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},
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calcOriginPos () {
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const { canvasWH, arcOriginPos } = this
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arcOriginPos[0] = canvasWH[0] / 2
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arcOriginPos[1] = canvasWH[1] / 2
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},
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draw () {
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const { ctx, canvasWH } = this
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ctx.clearRect(0, 0, ...canvasWH)
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const { initColor, calcRadarRadius, calcRingType } = this
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const { initColors, calcRadarRadius, calcRingType } = this
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initColor()
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initColors()
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calcRadarRadius()
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@ -161,11 +133,6 @@ export default {
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fillRadar()
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},
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initColor () {
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const { colors, defaultColors } = this
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this.drawColors = colors || defaultColors
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},
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calcRadarRadius () {
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const { canvasWH, data: { radius }, defaultRadius } = this
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@ -200,13 +167,13 @@ export default {
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radiusGap * (i + 1))
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},
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calcRingPolylineData () {
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const { ringRadiusData, rayLineRadianData, arcOriginPos } = this
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const { ringRadiusData, rayLineRadianData, centerPos } = this
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const { canvas: { getCircleRadianPoint } } = this
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this.ringPolylineData = ringRadiusData.map((r, i) =>
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rayLineRadianData.map(radian =>
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getCircleRadianPoint(...arcOriginPos, r, radian)))
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getCircleRadianPoint(...centerPos, r, radian)))
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},
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calcRingDrawConfig () {
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const { defaultRingLineType, defaultRingLineColor } = this
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@ -245,15 +212,15 @@ export default {
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}
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},
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fillCoverRing () {
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const { ctx, arcOriginPos, ringFillColor, ringType, radius, ringPolylineData } = this
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const { ctx, centerPos, ringFillColor, ringType, radius, ringPolylineData } = this
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const { canvas: { getRadialGradientColor, drawPolylinePath } } = this
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const color = getRadialGradientColor(ctx, arcOriginPos, 0, radius, ringFillColor)
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const color = getRadialGradientColor(ctx, centerPos, 0, radius, ringFillColor)
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ctx.beginPath()
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ringType === 'circle' && ctx.arc(...arcOriginPos, radius, 0, Math.PI * 2)
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ringType === 'circle' && ctx.arc(...centerPos, radius, 0, Math.PI * 2)
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ringType === 'polyline' && drawPolylinePath(ctx, ringPolylineData[ringPolylineData.length - 1])
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@ -264,7 +231,7 @@ export default {
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ctx.fill()
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},
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fillMulCoverRing () {
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const { ctx, ringType, ringFillColor, arcOriginPos } = this
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const { ctx, ringType, ringFillColor, centerPos } = this
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const { ringFillMultipleColor, ringPolylineData, ringRadiusData, deepClone } = this
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@ -280,7 +247,7 @@ export default {
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deepClone(ringRadiusData).reverse().forEach((radius, i) => {
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ctx.beginPath()
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ctx.arc(...arcOriginPos, radius, 0, Math.PI * 2)
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ctx.arc(...centerPos, radius, 0, Math.PI * 2)
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ringFillMultipleColor && (ctx.fillStyle = ringFillColor[(LastRingIndex - i) % colorNum])
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@ -299,7 +266,7 @@ export default {
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fillRingRing () {
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const { ctx, ringType, ringRadiusData, rayLineRadianData, getPointToLineDistance } = this
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const { ringFillMultipleColor, arcOriginPos, ringFillColor, ringPolylineData } = this
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const { ringFillMultipleColor, centerPos, ringFillColor, ringPolylineData } = this
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const { canvas: { drawPolylinePath, getCircleRadianPoint } } = this
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@ -315,7 +282,7 @@ export default {
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ringRadiusData.forEach((r, i) => {
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ctx.beginPath()
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ctx.arc(...arcOriginPos, r - halfLineWidth, 0, Math.PI * 2)
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ctx.arc(...centerPos, r - halfLineWidth, 0, Math.PI * 2)
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ringFillMultipleColor && (ctx.strokeStyle = ringFillColor[i % colorNum])
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@ -324,12 +291,12 @@ export default {
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ctx.lineCap = 'round'
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ctx.lineWidth = getPointToLineDistance(arcOriginPos, ringPolylineData[0][0], ringPolylineData[0][1])
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ctx.lineWidth = getPointToLineDistance(centerPos, ringPolylineData[0][0], ringPolylineData[0][1])
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ringType === 'polyline' &&
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ringRadiusData.map(r => r - halfLineWidth).map(r =>
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rayLineRadianData.map(radian =>
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getCircleRadianPoint(...arcOriginPos, r, radian))).forEach((line, i) => {
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getCircleRadianPoint(...centerPos, r, radian))).forEach((line, i) => {
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drawPolylinePath(ctx, line, true, true)
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ringFillMultipleColor && (ctx.strokeStyle = ringFillColor[i % colorNum])
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@ -342,7 +309,7 @@ export default {
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if ((ringType && ringType !== 'circle') || (!ringType && defaultRingType !== 'circle')) return
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const { ctx, ringRadiusData, arcOriginPos, ringLineDash, ringlineMultipleColor, ringLineColor } = this
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const { ctx, ringRadiusData, centerPos, ringLineDash, ringlineMultipleColor, ringLineColor } = this
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ctx.setLineDash(ringLineDash)
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@ -355,7 +322,7 @@ export default {
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ringRadiusData.forEach((r, i) => {
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ctx.beginPath()
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ctx.arc(...arcOriginPos, r, 0, Math.PI * 2)
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ctx.arc(...centerPos, r, 0, Math.PI * 2)
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ringlineMultipleColor && (ctx.strokeStyle = ringLineColor[i % colorNum])
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@ -390,7 +357,7 @@ export default {
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this.rayLineMultipleColor = typeof trueRayLineColor === 'object'
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},
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drawRayLine () {
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const { ctx, rayLineColor, rayLineDash, ringPolylineData, arcOriginPos, rayLineMultipleColor } = this
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const { ctx, rayLineColor, rayLineDash, ringPolylineData, centerPos, rayLineMultipleColor } = this
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const lastRingLineIndex = ringPolylineData.length - 1
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@ -405,7 +372,7 @@ export default {
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ringPolylineData[lastRingLineIndex].forEach((point, i) => {
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ctx.beginPath()
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ctx.moveTo(...arcOriginPos)
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ctx.moveTo(...centerPos)
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ctx.lineTo(...point)
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@ -415,14 +382,14 @@ export default {
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})
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},
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calcLabelPosData () {
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const { rayLineRadianData, radius, arcOriginPos } = this
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const { rayLineRadianData, radius, centerPos } = this
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const { canvas: { getCircleRadianPoint } } = this
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const labelRadius = radius + 10
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this.labelPosData = rayLineRadianData.map(radian =>
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getCircleRadianPoint(...arcOriginPos, labelRadius, radian))
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getCircleRadianPoint(...centerPos, labelRadius, radian))
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},
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calcLabelConfig () {
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const { defaultLabelColor, defaultLabelFS, drawColors } = this
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this.labelColor = trueLabelColor
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},
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drawLable () {
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const { ctx, arcOriginPos: [x], labelPosData, labelColor, labelFontSize, labelMultipleColor } = this
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const { ctx, centerPos: [x], labelPosData, labelColor, labelFontSize, labelMultipleColor } = this
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const { data: { label: { data } } } = this
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@ -461,7 +428,7 @@ export default {
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})
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},
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caclValuePointData () {
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const { data: { data, max }, arcOriginPos, radius, rayLineRadianData } = this
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const { data: { data, max }, centerPos, radius, rayLineRadianData } = this
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const { canvas: { getCircleRadianPoint } } = this
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@ -474,7 +441,7 @@ export default {
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this.valuePointData = valueRadius.map(td =>
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td.map((r, i) =>
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r ? getCircleRadianPoint(...arcOriginPos, r, rayLineRadianData[i]) : false))
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r ? getCircleRadianPoint(...centerPos, r, rayLineRadianData[i]) : false))
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},
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fillRadar () {
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const { ctx, data: { data }, valuePointData, drawColors, filterNull } = this
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