673 lines
20 KiB
JavaScript
673 lines
20 KiB
JavaScript
export default {
|
|
data () {
|
|
return {
|
|
// config able
|
|
defaultAxisFontSize: 10,
|
|
defaultAxisFontFamily: 'Arial',
|
|
|
|
defaultAxisLineColor: '#666',
|
|
defaultGridLineColor: '#666',
|
|
defaultAxisTagColor: '#666',
|
|
defaultAxisUnitColor: '#666',
|
|
|
|
defaultGridLineDash: [2, 2],
|
|
|
|
defaultNoAxisLine: false,
|
|
defaultNoAxisTag: false,
|
|
|
|
defaultXAxisOffset: 20,
|
|
defaultAxisLineTagGap: 5,
|
|
|
|
// after merge
|
|
axisFontSize: 0,
|
|
axisFontFamily: '',
|
|
|
|
axisLineColor: '',
|
|
gridLineColor: '',
|
|
axisTagColor: '',
|
|
axisUnitColor: '',
|
|
|
|
gridLineDash: [],
|
|
|
|
noAxisLine: '',
|
|
noAxisTag: '',
|
|
|
|
// calc data
|
|
valueMaxMin: [],
|
|
agValueMaxMin: [],
|
|
|
|
valueAxisMaxMin: [],
|
|
agValueAxisMaxMin: [],
|
|
|
|
valueAxisTag: [],
|
|
agValueAxisTag: [],
|
|
|
|
labelAxisTag: [],
|
|
agLabelAxisTag: [],
|
|
|
|
xAxisTagBA: ['', ''],
|
|
agXAxisTagBA: ['', ''],
|
|
yAxisTagBA: ['', ''],
|
|
agYAxisTagBA: ['', ''],
|
|
|
|
addBAValueAxisTag: [],
|
|
addBAAGValueAxisTag: [],
|
|
|
|
addBALabelAxisTag: [],
|
|
addBAAGLabelAxisTag: [],
|
|
|
|
axisUnit: [],
|
|
|
|
axisOffset: [],
|
|
|
|
axisOriginPos: [],
|
|
axisWH: [],
|
|
|
|
axisAnglePos: {},
|
|
|
|
valueAxisTagPos: [],
|
|
agValueAxisTagPos: [],
|
|
|
|
labelAxisTagPos: [],
|
|
agLabelAxisTagPos: [],
|
|
|
|
tagAlign: {}
|
|
}
|
|
},
|
|
methods: {
|
|
initAxis () {
|
|
const { calcValuesMaxMin, calcValueAxisData, calcLabelAxisData } = this
|
|
|
|
calcValuesMaxMin()
|
|
|
|
calcValueAxisData()
|
|
|
|
calcLabelAxisData()
|
|
|
|
const { calcTagBA, calcAddBATag, calcAxisUnit } = this
|
|
|
|
calcTagBA()
|
|
|
|
calcAddBATag()
|
|
|
|
calcAxisUnit()
|
|
|
|
const { calcAxisFontData, calcAxisColor, calcGridLineDash } = this
|
|
|
|
calcAxisFontData()
|
|
|
|
calcAxisColor()
|
|
|
|
calcGridLineDash()
|
|
|
|
const { calcAxisLineTagStatus, calcAxisOffset, calcAxisAreaData } = this
|
|
|
|
calcAxisLineTagStatus()
|
|
|
|
calcAxisOffset()
|
|
|
|
calcAxisAreaData()
|
|
|
|
const { calcAxisAnglePos, calcValueAxisTagPos, calcLabelAxisTagPos } = this
|
|
|
|
calcAxisAnglePos()
|
|
|
|
calcValueAxisTagPos()
|
|
|
|
calcLabelAxisTagPos()
|
|
|
|
const { calcTagAlign } = this
|
|
|
|
calcTagAlign()
|
|
},
|
|
calcValuesMaxMin () {
|
|
const { data: { series }, calcValueMaxMin } = this
|
|
|
|
const valueSeries = series.filter(({ againstAxis }) => !againstAxis)
|
|
|
|
if (valueSeries.length) this.valueMaxMin = calcValueMaxMin(valueSeries)
|
|
|
|
const agValueSeries = series.filter(({ againstAxis }) => againstAxis)
|
|
|
|
if (agValueSeries.length) this.agValueMaxMin = calcValueMaxMin(agValueSeries)
|
|
},
|
|
calcValueMaxMin (series) {
|
|
const { mulValueAdd, calcMulValueAdd, getArrayMax, getArrayMin } = this
|
|
|
|
let valueSeries = series.map(({ value }) => value)
|
|
|
|
const min = getArrayMin(valueSeries)
|
|
|
|
mulValueAdd && (valueSeries = calcMulValueAdd(valueSeries))
|
|
|
|
const max = getArrayMax(valueSeries)
|
|
|
|
return [max, min]
|
|
},
|
|
calcMulValueAdd (values) {
|
|
const { multipleSum, filterNull } = this
|
|
|
|
return values.map(series =>
|
|
filterNull(series).map(n =>
|
|
n instanceof Array ? multipleSum(...filterNull(n)) : n))
|
|
},
|
|
calcValueAxisData () {
|
|
const { horizon, data: { x, ax, y, ay }, calcValueAxisTag } = this
|
|
|
|
const { valueMaxMin, agValueMaxMin, getValueAxisMaxMin } = this
|
|
|
|
const valueAxis = horizon ? [x, ax] : [y, ay]
|
|
|
|
if (valueMaxMin.length) {
|
|
const valueAxisTag = this.valueAxisTag = calcValueAxisTag(valueMaxMin, valueAxis[0])
|
|
|
|
this.valueAxisMaxMin = getValueAxisMaxMin(valueAxisTag)
|
|
}
|
|
|
|
if (agValueMaxMin.length) {
|
|
const agValueAxisTag = this.agValueAxisTag = calcValueAxisTag(agValueMaxMin, valueAxis[1])
|
|
|
|
this.agValueAxisMaxMin = getValueAxisMaxMin(agValueAxisTag)
|
|
}
|
|
},
|
|
calcValueAxisTag ([vmax, vmin], { max, min, num, fixed, tags } = {}) {
|
|
if (tags) return tags
|
|
|
|
let [trueMax, trueMin] = [max, min]
|
|
|
|
if (vmax === 0 && vmin === 0) vmax = 8
|
|
|
|
const thirdValueMinus = parseInt((vmax - vmin) / 3)
|
|
|
|
!max && (max !== 0) && (trueMax = vmax + thirdValueMinus)
|
|
!min && (min !== 0) && (trueMin = vmin - thirdValueMinus)
|
|
|
|
const trueMinus = trueMax - trueMin
|
|
|
|
!num && trueMinus < 9 && (num = Math.ceil(trueMinus) + 1)
|
|
!num && (num = 10)
|
|
|
|
const valueGap = trueMinus / (num - 1)
|
|
|
|
return Array(num).fill(0).map((t, i) =>
|
|
(trueMin + i * valueGap).toFixed(fixed))
|
|
},
|
|
getValueAxisMaxMin (valueTag) {
|
|
const lastIndex = valueTag.length - 1
|
|
|
|
return [
|
|
parseFloat(valueTag[lastIndex]),
|
|
parseFloat(valueTag[0])
|
|
]
|
|
},
|
|
calcLabelAxisData () {
|
|
const { horizon, data: { x, ax, y, ay } } = this
|
|
|
|
const labelAxis = horizon ? [y, ay] : [x, ax]
|
|
|
|
if (labelAxis[0] && labelAxis[0].tags) this.labelAxisTag = labelAxis[0].tags
|
|
|
|
if (labelAxis[1] && labelAxis[1].tags) this.agLabelAxisTag = labelAxis[1].tags
|
|
},
|
|
calcTagBA () {
|
|
const { data: { x, ax, y, ay } } = this
|
|
|
|
if (x && x.tagBefore) this.xAxisTagBA[0] = x.tagBefore
|
|
if (ax && ax.tagBefore) this.agXAxisTagBA[0] = ax.tagBefore
|
|
if (y && y.tagBefore) this.yAxisTagBA[0] = y.tagBefore
|
|
if (ay && ay.tagBefore) this.agYAxisTagBA[0] = ay.tagBefore
|
|
|
|
if (x && x.tagAfter) this.xAxisTagBA[1] = x.tagAfter
|
|
if (ax && ax.tagAfter) this.agXAxisTagBA[1] = ax.tagAfter
|
|
if (y && y.tagAfter) this.yAxisTagBA[1] = y.tagAfter
|
|
if (ay && ay.tagAfter) this.agYAxisTagBA[1] = ay.tagAfter
|
|
},
|
|
calcAddBATag () {
|
|
const { xAxisTagBA, agXAxisTagBA, yAxisTagBA, agYAxisTagBA } = this
|
|
|
|
const { valueAxisTag, agValueAxisTag, labelAxisTag, agLabelAxisTag } = this
|
|
|
|
const { horizon, addBATag } = this
|
|
|
|
const valueTagBA = horizon ? [xAxisTagBA, agXAxisTagBA] : [yAxisTagBA, agYAxisTagBA]
|
|
|
|
const labelTagBA = horizon ? [yAxisTagBA, agYAxisTagBA] : [xAxisTagBA, agXAxisTagBA]
|
|
|
|
if (valueAxisTag.length) this.addBAValueAxisTag = addBATag(valueAxisTag, valueTagBA[0])
|
|
if (agValueAxisTag.length) this.addBAAGValueAxisTag = addBATag(agValueAxisTag, valueTagBA[1])
|
|
if (labelAxisTag.length) this.addBALabelAxisTag = addBATag(labelAxisTag, labelTagBA[0])
|
|
if (agLabelAxisTag.length) this.addBAAGLabelAxisTag = addBATag(agLabelAxisTag, labelTagBA[1])
|
|
},
|
|
addBATag (tags, ba) {
|
|
return tags.map(tag => tag ? `${ba[0]}${tag}${ba[1]}` : tag)
|
|
},
|
|
calcAxisUnit () {
|
|
const { data: { x, ax, y, ay } } = this
|
|
|
|
if (x && x.unit) this.axisUnit[0] = x.unit
|
|
if (ax && ax.unit) this.axisUnit[1] = ax.unit
|
|
if (y && y.unit) this.axisUnit[2] = y.unit
|
|
if (ay && ay.unit) this.axisUnit[3] = ay.unit
|
|
},
|
|
calcAxisFontData () {
|
|
const { defaultAxisFontSize, defaultAxisFontFamily, data } = this
|
|
|
|
const { fontSize, fontFamily, axisFontSize, axisFontFamily }= data
|
|
|
|
this.axisFontSize = axisFontSize || fontSize || defaultAxisFontSize
|
|
|
|
this.axisFontFamily = axisFontFamily || fontFamily || defaultAxisFontFamily
|
|
},
|
|
calcAxisColor () {
|
|
const { data, defaultAxisTagColor, defaultAxisLineColor, defaultGridLineColor } = this
|
|
|
|
const { axisTagColor, axisLineColor, gridLineColor } = data
|
|
|
|
this.axisTagColor = axisTagColor || defaultAxisTagColor
|
|
|
|
this.axisLineColor = axisLineColor || defaultAxisLineColor
|
|
|
|
this.gridLineColor = gridLineColor || defaultGridLineColor
|
|
},
|
|
calcGridLineDash () {
|
|
const { data, defaultGridLineDash } = this
|
|
|
|
const { gridLineDash } = data
|
|
|
|
if (gridLineDash instanceof Array) {
|
|
this.gridLineDash = gridLineDash
|
|
} else if (gridLineDash) {
|
|
this.gridLineDash = defaultGridLineDash
|
|
} else {
|
|
this.gridLineDash = [10, 0]
|
|
}
|
|
},
|
|
calcAxisLineTagStatus () {
|
|
const { defaultNoAxisLine, defaultNoAxisTag, data } = this
|
|
|
|
const { noAxisLine, noAxisTag } = data
|
|
|
|
this.noAxisLine = noAxisLine || defaultNoAxisLine
|
|
|
|
this.noAxisTag = noAxisTag || defaultNoAxisTag
|
|
},
|
|
calcAxisOffset () {
|
|
const { horizon, axisUnit, defaultXAxisOffset } = this
|
|
|
|
const { addBAValueAxisTag, addBAAGValueAxisTag, addBALabelAxisTag, addBAAGLabelAxisTag } = this
|
|
|
|
const { axisFontSize, axisFontFamily, defaultAxisLineTagGap } = this
|
|
|
|
const { data: { x, ax, y, ay } } = this
|
|
|
|
const { ctx, canvas: { getTextsWidth }, boundaryGap } = this
|
|
|
|
ctx.font = `${axisFontSize}px ${axisFontFamily}`
|
|
|
|
this.axisOffset[0] = (ax && ax.offset) || defaultXAxisOffset
|
|
this.axisOffset[2] = (x && x.offset) || defaultXAxisOffset
|
|
|
|
const horizonAxisTags = horizon
|
|
? [addBALabelAxisTag, addBAAGLabelAxisTag]
|
|
: [addBAValueAxisTag, addBAAGValueAxisTag]
|
|
|
|
this.axisOffset[3] = (y && y.offset) ||
|
|
Math.max(...getTextsWidth(ctx, [axisUnit[2] || '']),
|
|
...getTextsWidth(ctx, horizonAxisTags[0].length ? horizonAxisTags[0] : 0)) + defaultAxisLineTagGap
|
|
|
|
// axis offset 1
|
|
const xAxisTags = horizon ? addBAValueAxisTag : addBALabelAxisTag
|
|
|
|
let xAxisTagsHalfWidth = 0
|
|
|
|
xAxisTags.length && (xAxisTagsHalfWidth = ctx.measureText(xAxisTags.length - 1).width / 2)
|
|
|
|
let rightOffset = Math.max(...getTextsWidth(ctx, [axisUnit[3] || '']),
|
|
...getTextsWidth(ctx, [axisUnit[0] || '']),
|
|
...getTextsWidth(ctx, horizonAxisTags[1].length ? horizonAxisTags[1] : [''])) + defaultAxisLineTagGap
|
|
|
|
;(!boundaryGap || horizon) && (rightOffset += (xAxisTagsHalfWidth + 5))
|
|
|
|
this.axisOffset[1] = (ay && ay.offset) || rightOffset
|
|
|
|
if (y && y.noTag) this.axisOffset[3] = 1
|
|
if (ay && ay.noTag) this.axisOffset[1] = 1
|
|
},
|
|
calcAxisAreaData () {
|
|
const { canvasWH, axisOffset, axisWH, axisOriginPos } = this
|
|
|
|
axisWH[0] = canvasWH[0] - axisOffset[1] - axisOffset[3]
|
|
axisWH[1] = canvasWH[1] - axisOffset[0] - axisOffset[2]
|
|
|
|
axisOriginPos[0] = axisOffset[3]
|
|
axisOriginPos[1] = axisWH[1] + axisOffset[0]
|
|
},
|
|
calcAxisAnglePos () {
|
|
const { axisWH, axisOriginPos, axisAnglePos } = this
|
|
|
|
axisAnglePos.leftTop = [axisOriginPos[0], axisOriginPos[1] - axisWH[1]]
|
|
axisAnglePos.rightTop = [axisOriginPos[0] + axisWH[0], axisOriginPos[1] - axisWH[1]]
|
|
|
|
axisAnglePos.leftBottom = axisOriginPos
|
|
axisAnglePos.rightBottom = [axisOriginPos[0] + axisWH[0], axisOriginPos[1]]
|
|
},
|
|
calcValueAxisTagPos () {
|
|
const { horizon, axisOriginPos, axisAnglePos } = this
|
|
|
|
const { valueAxisTag, agValueAxisTag, getValueAxisTagPos } = this
|
|
|
|
if (valueAxisTag) this.valueAxisTagPos = getValueAxisTagPos(valueAxisTag, axisOriginPos)
|
|
|
|
const basePoint = horizon ? axisAnglePos.leftTop : axisAnglePos.rightBottom
|
|
|
|
if (agValueAxisTag) this.agValueAxisTagPos = getValueAxisTagPos(agValueAxisTag, basePoint)
|
|
},
|
|
getValueAxisTagPos (tags, [x, y]) {
|
|
const { horizon, axisWH } = this
|
|
|
|
const tagsNum = tags.length
|
|
|
|
const areaLength = horizon ? axisWH[0] : axisWH[1]
|
|
|
|
const tagGap = areaLength / (tagsNum - 1)
|
|
|
|
return new Array(tagsNum).fill(0).map((t, i) =>
|
|
horizon ? [x + tagGap * i, y] : [x, y - tagGap * i])
|
|
},
|
|
calcLabelAxisTagPos () {
|
|
const { horizon, getLabelAxisTagPos, axisAnglePos } = this
|
|
|
|
const { labelAxisTag, agLabelAxisTag, axisOriginPos } = this
|
|
|
|
if (labelAxisTag.length) this.labelAxisTagPos = getLabelAxisTagPos(labelAxisTag, axisOriginPos)
|
|
|
|
const basePoint = horizon ? axisAnglePos.rightBottom : axisAnglePos.leftTop
|
|
|
|
if (agLabelAxisTag.length) this.agLabelAxisTagPos = getLabelAxisTagPos(agLabelAxisTag, basePoint)
|
|
},
|
|
getLabelAxisTagPos (tags, [x, y]) {
|
|
const { horizon, axisWH, boundaryGap } = this
|
|
|
|
const tagsNum = tags.length
|
|
|
|
const areaLength = horizon ? axisWH[1] : axisWH[0]
|
|
|
|
let gapColumnNum = boundaryGap ? tagsNum : tagsNum - 1
|
|
|
|
gapColumnNum === 0 && (gapColumnNum = 1)
|
|
|
|
const tagGap = areaLength / gapColumnNum
|
|
|
|
const halfGap = tagGap / 2
|
|
|
|
const tempPos = new Array(tagsNum).fill(0)
|
|
|
|
if (boundaryGap) {
|
|
return tempPos.map((t, i) =>
|
|
horizon ? [x, y - (tagGap * i) - halfGap] : [x + (tagGap * i) + halfGap, y])
|
|
}
|
|
|
|
if (!boundaryGap) {
|
|
return tempPos.map((t, i) =>
|
|
horizon ? [x, y + tagGap * i] : [x + tagGap * i, y])
|
|
}
|
|
},
|
|
calcTagAlign () {
|
|
const { tagAlign } = this
|
|
|
|
tagAlign.x = ['center', 'top']
|
|
tagAlign.y = ['right', 'middle']
|
|
tagAlign.ax = ['center', 'bottom']
|
|
tagAlign.ay = ['left', 'middle']
|
|
},
|
|
drawAxis () {
|
|
const { drawAxisLine, drawAxisTag, drawAxisUnit } = this
|
|
|
|
drawAxisLine()
|
|
|
|
drawAxisTag()
|
|
|
|
drawAxisUnit()
|
|
|
|
const { drawAxisGrid } = this
|
|
|
|
drawAxisGrid()
|
|
},
|
|
drawAxisLine () {
|
|
const { noAxisLine } = this
|
|
|
|
if (noAxisLine) return
|
|
|
|
const { ctx, horizon, axisOriginPos, axisAnglePos } = this
|
|
|
|
const { axisLineColor, agValueAxisTag, agLabelAxisTag } = this
|
|
|
|
const { data: { x, ax, y, ay } } = this
|
|
|
|
ctx.lineWidth = 1
|
|
|
|
if (!x || !x.noAxisLine) {
|
|
ctx.strokeStyle = (x && x.axisLineColor) || axisLineColor
|
|
ctx.beginPath()
|
|
ctx.moveTo(...axisOriginPos)
|
|
ctx.lineTo(...axisAnglePos.rightBottom)
|
|
ctx.stroke()
|
|
}
|
|
|
|
if (!y || !y.noAxisLine) {
|
|
ctx.strokeStyle = (y && y.axisLineColor) || axisLineColor
|
|
ctx.beginPath()
|
|
ctx.moveTo(...axisOriginPos)
|
|
ctx.lineTo(...axisAnglePos.leftTop)
|
|
ctx.stroke()
|
|
}
|
|
|
|
const agValueAxis = horizon ? ay : ax
|
|
|
|
if (agValueAxisTag.length && (!agValueAxis || !agValueAxis.noAxisLine)) {
|
|
ctx.strokeStyle = (agValueAxis && agValueAxis.axisLineColor) || axisLineColor
|
|
ctx.beginPath()
|
|
ctx.moveTo(...(horizon ? axisAnglePos.leftTop : axisAnglePos.rightTop))
|
|
ctx.lineTo(...(horizon ? axisAnglePos.rightTop : axisAnglePos.rightBottom))
|
|
ctx.stroke()
|
|
}
|
|
|
|
const agLebalAxis = horizon ? ax : ay
|
|
|
|
if (agLabelAxisTag.length && (!agLebalAxis || !agLebalAxis.noAxisLine)) {
|
|
ctx.strokeStyle = (agLebalAxis && agLebalAxis.axisLineColor) || axisLineColor
|
|
ctx.beginPath()
|
|
ctx.moveTo(...(horizon ? axisAnglePos.rightTop : axisAnglePos.leftTop))
|
|
ctx.lineTo(...(horizon ? axisAnglePos.rightBottom : axisAnglePos.rightTop))
|
|
ctx.stroke()
|
|
}
|
|
},
|
|
drawAxisTag () {
|
|
const { noAxisTag } = this
|
|
|
|
if (noAxisTag) return
|
|
|
|
const { horizon, tagAlign, defaultAxisLineTagGap: offset } = this
|
|
|
|
const { data: { x, ax, y, ay }, drawAxisSeriesTag } = this
|
|
|
|
const xAxis = horizon ? ['addBAValueAxisTag', 'valueAxisTagPos'] : ['addBALabelAxisTag', 'labelAxisTagPos']
|
|
const yAxis = horizon ? ['addBALabelAxisTag', 'labelAxisTagPos'] : ['addBAValueAxisTag', 'valueAxisTagPos']
|
|
const agXAxis = horizon ? ['addBAAGValueAxisTag', 'agValueAxisTagPos'] : ['addBAAGLabelAxisTag', 'agLabelAxisTagPos']
|
|
const agYAxis = horizon ? ['addBAAGLabelAxisTag', 'agLabelAxisTagPos'] : ['addBAAGValueAxisTag', 'agValueAxisTagPos']
|
|
|
|
if (!x || !x.noAxisTag) drawAxisSeriesTag(...xAxis.map(td => this[td]), x, tagAlign.x, [0, offset], x && x.rotate)
|
|
if (!y || !y.noAxisTag) drawAxisSeriesTag(...yAxis.map(td => this[td]), y, tagAlign.y, [-offset, 0])
|
|
if (!ax || !ax.noAxisTag) drawAxisSeriesTag(...agXAxis.map(td => this[td]), ax, tagAlign.ax, [0, -offset])
|
|
if (!ay || !ay.noAxisTag) drawAxisSeriesTag(...agYAxis.map(td => this[td]), ay, tagAlign.ay, [offset, 0])
|
|
},
|
|
drawAxisSeriesTag (tags, tagPos, { fontSize, fontFamily, tagColor } = {}, align, offset, rotate = false) {
|
|
const { ctx, axisFontSize, axisFontFamily, axisTagColor, drawColors } = this
|
|
|
|
let color = tagColor || axisTagColor
|
|
|
|
color === 'colors' && (color = drawColors)
|
|
|
|
const colorNum = color.length
|
|
|
|
const mulColor = color instanceof Array
|
|
|
|
ctx.font = `${fontSize || axisFontSize}px ${fontFamily || axisFontFamily}`
|
|
|
|
!mulColor && (ctx.fillStyle = color)
|
|
|
|
ctx.textAlign = align[0]
|
|
ctx.textBaseline = align[1]
|
|
|
|
tags.forEach((tag, i) => {
|
|
if (!tag && tag !== 0) return
|
|
|
|
const currentPos = [tagPos[i][0] + offset[0], tagPos[i][1] + offset[1]]
|
|
|
|
mulColor && (ctx.fillStyle = color[i % colorNum])
|
|
|
|
if (rotate) {
|
|
ctx.textAlign = 'left'
|
|
ctx.textBaseline = 'top'
|
|
|
|
ctx.save()
|
|
ctx.translate(...currentPos)
|
|
ctx.rotate(rotate * Math.PI / 180)
|
|
}
|
|
|
|
ctx.fillText(tag, ...(rotate ? [0, 0] : currentPos))
|
|
|
|
if (rotate) ctx.restore()
|
|
})
|
|
},
|
|
drawAxisUnit () {
|
|
const { noAxisTag } = this
|
|
|
|
if (noAxisTag) return
|
|
|
|
const { axisOriginPos, canvasWH, drawUnit, defaultAxisLineTagGap } = this
|
|
|
|
const { data: { x, ax, y, ay }, axisAnglePos } = this
|
|
|
|
if (x) {
|
|
const pos = [canvasWH[0], axisOriginPos[1] + defaultAxisLineTagGap]
|
|
drawUnit(x, pos, ['right', 'top'])
|
|
}
|
|
|
|
if (ax) {
|
|
const pos = [canvasWH[0], axisAnglePos.rightTop[1] - defaultAxisLineTagGap]
|
|
drawUnit(ax, pos, ['right', 'bottom'])
|
|
}
|
|
|
|
if (y) {
|
|
const pos = [axisOriginPos[0] - defaultAxisLineTagGap, 0]
|
|
drawUnit(y, pos, ['right', 'top'])
|
|
}
|
|
|
|
if (ay) {
|
|
const pos = [axisAnglePos.rightTop[0] + defaultAxisLineTagGap, 0]
|
|
drawUnit(ay, pos, ['left', 'top'])
|
|
}
|
|
},
|
|
drawUnit ({ unit, unitColor, fontSize, fontFamily }, pos, align) {
|
|
const { axisTagColor, axisFontSize, axisFontFamily } = this
|
|
|
|
const { ctx } = this
|
|
|
|
if (!unit) return
|
|
|
|
ctx.font = `${fontSize || axisFontSize}px ${fontFamily || axisFontFamily}`
|
|
|
|
ctx.fillStyle = unitColor || axisTagColor
|
|
|
|
ctx.textAlign = align[0]
|
|
ctx.textBaseline = align[1]
|
|
|
|
ctx.fillText(unit, ...pos)
|
|
},
|
|
drawAxisGrid () {
|
|
const { valueAxisTagPos, agValueAxisTagPos, labelAxisTagPos, agLabelAxisTagPos } = this
|
|
|
|
const { valueAxisTag, agValueAxisTag, labelAxisTag, agLabelAxisTag } = this
|
|
|
|
const { data: { x, ax, y, ay }, horizon, drawGrid, boundaryGap } = this
|
|
|
|
const xAxis = horizon ? [valueAxisTag, valueAxisTagPos] : [labelAxisTag, labelAxisTagPos]
|
|
|
|
let xBELineStatus = [false, false]
|
|
|
|
if (horizon) {
|
|
xBELineStatus = [true, false]
|
|
} else {
|
|
xBELineStatus = boundaryGap ? [false, false] : [true, true]
|
|
}
|
|
|
|
if (xAxis[0].length) drawGrid(x, ...xAxis, false, false, true, ...xBELineStatus)
|
|
|
|
const yAxis = horizon ? [labelAxisTag, labelAxisTagPos] : [valueAxisTag, valueAxisTagPos]
|
|
|
|
if (yAxis[0].length) drawGrid(y, ...yAxis, true, true, false, !horizon)
|
|
|
|
const agXAxis = horizon ? [agValueAxisTag, agValueAxisTagPos] : [agLabelAxisTag, agLabelAxisTagPos]
|
|
|
|
if (agXAxis[0].length) drawGrid(ax, ...agXAxis, false, false, false, ...(boundaryGap ? [false, false] : [true, true]))
|
|
|
|
const agYAxis = horizon ? [agLabelAxisTag, agLabelAxisTagPos] : [agValueAxisTag, agValueAxisTagPos]
|
|
|
|
if (agYAxis[0].length) drawGrid(ay, ...agYAxis, true, false, false, true)
|
|
},
|
|
drawGrid (axis = {}, gridTag, gridPos, horizon = true, right = true, top = true, noFirst = false, noLast = false) {
|
|
const { grid, gridLineColor: cGLC, gridLineDash: cGLD } = axis
|
|
|
|
if (!grid) return
|
|
|
|
const { gridLineColor, gridLineDash, defaultGridLineDash } = this
|
|
|
|
const { ctx, drawColors, axisWH } = this
|
|
|
|
let trueGridLineDash = gridLineDash
|
|
|
|
if (cGLD instanceof Array) {
|
|
trueGridLineDash = cGLD
|
|
} else if (cGLD === true) {
|
|
trueGridLineDash = defaultGridLineDash
|
|
}
|
|
|
|
ctx.setLineDash(trueGridLineDash)
|
|
|
|
let color = cGLC || gridLineColor
|
|
|
|
color === 'colors' && (color = drawColors)
|
|
|
|
const mulColor = color instanceof Array
|
|
|
|
const colorNum = color.length
|
|
|
|
!mulColor && (ctx.strokeStyle = color)
|
|
|
|
ctx.lineWidth = 1
|
|
|
|
const gridLastIndex = gridPos.length - 1
|
|
|
|
gridPos.forEach((pos, i) => {
|
|
if (!gridTag[i] && gridTag[i] !== 0) return
|
|
|
|
if (i === 0 && noFirst) return
|
|
|
|
if (i === gridLastIndex && noLast) return
|
|
|
|
ctx.beginPath()
|
|
|
|
mulColor && (ctx.strokeStyle = color[i % colorNum])
|
|
|
|
ctx.moveTo(...pos)
|
|
ctx.lineTo(...(horizon
|
|
? [right ? pos[0] + axisWH[0] : pos[0] - axisWH[0], pos[1]]
|
|
: [pos[0], top ? pos[1] - axisWH[1] : pos[1] + axisWH[1]]))
|
|
|
|
ctx.stroke()
|
|
})
|
|
}
|
|
}
|
|
}
|