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waveform-analysis/src/components/rendering/WaveformTrackAxes.vue
李启源 979b698156
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fix(chart): retain axes in clean view
2026-07-31 10:27:27 +08:00

232 lines
6.9 KiB
Vue

<script setup lang="ts">
import { axisBottom, axisLeft, axisRight, select } from 'd3'
import { nextTick, onMounted, ref, watch } from 'vue'
import type { WaveformAxesOptions } from '../../types'
import { formatAxisTime, formatScientificAxisLabel } from '../../utils'
import type { DisplaySeries, TrackLayout, WaveformYAxisLayout } from '../core/types'
interface Props {
track: TrackLayout
innerWidth: number
cleanView: boolean
axes?: WaveformAxesOptions
timeUnit: 's' | 'ms'
yLabel?: string
}
const props = defineProps<Props>()
const xAxisElement = ref<SVGGElement>()
const yAxisElements = ref<SVGGElement[]>([])
function resolveYAxisLabel(series: DisplaySeries): string {
return series.name.trim() || props.yLabel || ''
}
function hasYAxisTitle(axis: WaveformYAxisLayout): boolean {
const series = axis.seriesList[0]
return Boolean(series && resolveYAxisLabel(series))
}
function setYAxisElement(element: unknown, index: number) {
if (element) yAxisElements.value[index] = element as SVGGElement
}
function shouldShowYAxisLabel(trackHeight: number, trackIndex: number): boolean {
const minimumHeightForLabel = 80
if (trackHeight >= minimumHeightForLabel) return true
return trackIndex % Math.ceil(minimumHeightForLabel / trackHeight) === 0
}
function renderAxes() {
props.track.yAxes.forEach((axis, index) => {
const element = yAxisElements.value[index]
if (!element) return
const [axisMin, axisMax] = axis.scale.domain()
const yAxis = (axis.side === 'left' ? axisLeft(axis.scale) : axisRight(axis.scale))
.tickFormat((value) => formatScientificAxisLabel(Number(value), { axisMin, axisMax }))
.tickSize(-4)
.tickPadding(7)
.tickSizeOuter(0)
.tickValues(axis.tickValues)
const selection = select(element)
selection.call(yAxis)
selection
.selectAll('path.domain')
.attr('display', props.axes?.y?.lineVisible === false ? 'none' : null)
})
if (!xAxisElement.value) return
const selection = select(xAxisElement.value)
selection.call(
axisBottom(props.track.xScale)
.tickValues(props.track.xAxisTickValues)
.tickFormat((value) =>
formatAxisTime(
Number(value),
props.timeUnit,
props.track.xScale.domain() as [number, number],
),
)
.tickSize(-4)
.tickPadding(7)
.tickSizeOuter(0),
)
selection
.selectAll('path.domain')
.attr('display', props.axes?.x?.lineVisible === false ? 'none' : null)
}
onMounted(async () => {
await nextTick()
renderAxes()
})
watch(
[
() => props.track.xScale,
() => props.track.yAxes,
() => props.track.xAxisTickValues,
() => props.track.yAxisTickValues,
() => props.timeUnit,
() => props.axes?.x?.lineVisible,
() => props.axes?.y?.lineVisible,
],
async () => {
await nextTick()
renderAxes()
},
{ flush: 'post' },
)
</script>
<template>
<g
v-if="track.showXAxis"
ref="xAxisElement"
class="waveform-track__axis waveform-track__axis--x waveform-chart__axis waveform-chart__axis--x"
:class="{ 'waveform-track__axis--line-hidden': axes?.x?.lineVisible === false }"
:transform="`translate(0, ${track.height})`"
/>
<g
v-if="track.showXAxis"
class="waveform-track__axis-endpoints waveform-chart__axis-endpoints"
:transform="`translate(0, ${track.height})`"
font-family="sans-serif"
font-size="10"
aria-hidden="true"
>
<text
class="waveform-track__axis-endpoint waveform-track__axis-endpoint--start waveform-chart__axis-endpoint waveform-chart__axis-endpoint--start"
x="0"
y="7"
dy="0.71em"
text-anchor="start"
>
{{ track.endpointLabels.start }}
</text>
<text
class="waveform-track__axis-endpoint waveform-track__axis-endpoint--end waveform-chart__axis-endpoint waveform-chart__axis-endpoint--end"
:x="track.width ?? innerWidth"
y="7"
dy="0.71em"
text-anchor="end"
>
{{ track.endpointLabels.end }}
</text>
</g>
<text
v-if="track.showXAxis && track.xAxisExponent"
class="waveform-track__axis-exponent waveform-track__axis-exponent--x waveform-chart__axis-exponent waveform-chart__axis-exponent--x"
:x="track.width ?? innerWidth"
:y="track.height + 27"
text-anchor="end"
aria-hidden="true"
>
{{ track.xAxisExponent }}
</text>
<g
v-for="axis in track.isEmpty ? [] : track.yAxes"
:key="`y-axis-${track.index}-${axis.index}`"
:ref="(element) => setYAxisElement(element, axis.index)"
class="waveform-track__axis waveform-track__axis--y waveform-chart__axis waveform-chart__axis--y"
:class="[
`waveform-track__axis--${axis.side}`,
{ 'waveform-track__axis--line-hidden': axes?.y?.lineVisible === false },
]"
:data-y-axis-index="axis.index"
:data-y-axis-side="axis.side"
:transform="`translate(${axis.x}, 0)`"
/>
<text
v-for="axis in track.isEmpty ? [] : track.yAxes.filter((item) => item.exponentLabel)"
:key="`y-axis-exponent-${track.index}-${axis.index}`"
class="waveform-track__axis-exponent waveform-track__axis-exponent--y waveform-chart__axis-exponent waveform-chart__axis-exponent--y"
:data-y-axis-index="axis.index"
:x="axis.exponentX"
y="0"
dy="0.32em"
:text-anchor="axis.side === 'left' ? 'end' : 'start'"
aria-hidden="true"
>
{{ axis.exponentLabel }}
</text>
<g
v-if="
!cleanView &&
!track.isEmpty &&
track.hasVisibleSeries &&
track.seriesList.length === 1 &&
track.showYAxisLabel &&
resolveYAxisLabel(track.series) &&
shouldShowYAxisLabel(track.height, track.index)
"
>
<rect
class="waveform-track__y-axis-label-bg waveform-chart__y-axis-label-bg"
:x="track.yAxisLabelX - 12"
:y="track.height / 2 - 40"
width="24"
height="80"
rx="2"
/>
<text
class="waveform-track__y-axis-label waveform-chart__y-axis-label"
:fill="track.series.color"
:transform="`translate(${track.yAxisLabelX}, ${track.height / 2}) rotate(-90)`"
text-anchor="middle"
dominant-baseline="central"
>
{{ resolveYAxisLabel(track.series) }}
</text>
</g>
<g
v-for="axis in !cleanView && track.yAxes.length > 1 ? track.yAxes.filter(hasYAxisTitle) : []"
:key="`y-axis-title-${track.index}-${axis.index}`"
class="waveform-track__multi-axis-title"
:data-y-axis-title-index="axis.index"
>
<rect
class="waveform-track__y-axis-label-bg waveform-chart__y-axis-label-bg"
:x="axis.labelX - 12"
:y="track.height / 2 - 40"
width="24"
height="80"
rx="2"
/>
<text
class="waveform-track__y-axis-label waveform-chart__y-axis-label"
:fill="axis.seriesList[0].color"
:transform="`translate(${axis.labelX}, ${track.height / 2}) rotate(-90)`"
text-anchor="middle"
dominant-baseline="central"
>
{{ resolveYAxisLabel(axis.seriesList[0]) }}
</text>
</g>
</template>