66 lines
1.9 KiB
TypeScript
66 lines
1.9 KiB
TypeScript
import type {
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SingleWaveformData,
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WaveformData,
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WaveformPoint,
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NormalizedWaveformSeries,
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} from '../types'
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/**
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* 规范化单波形数据
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* @param data 输入数据（samples 或 points 格式）
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* @returns 规范化后的点数组
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*/
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export function normalizeWaveformData(data: SingleWaveformData): WaveformPoint[] {
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if (data.kind === 'samples') {
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if (!Number.isFinite(data.sampleRate) || data.sampleRate <= 0) return []
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const startTime = Number.isFinite(data.startTime) ? (data.startTime ?? 0) : 0
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return data.values.flatMap((value, index) =>
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Number.isFinite(value) ? [{ x: startTime + index / data.sampleRate, y: value }] : [],
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)
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}
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return data.points
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.filter((point) => Number.isFinite(point.x) && Number.isFinite(point.y))
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.map((point) => ({ ...point }))
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.sort((left, right) => left.x - right.x)
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}
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/**
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* 规范化波形系列数据
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* @param data 输入数据（单波形或多通道）
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* @returns 规范化后的系列数组
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*/
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export function normalizeWaveformSeries(data: WaveformData): NormalizedWaveformSeries[] {
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if (data.kind !== 'series') {
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const points = normalizeWaveformData(data)
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return points.length > 0 ? [{ id: 'series-0', name: '', points }] : []
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}
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const usedIds = new Set<string>()
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return data.series
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.map((series, index) => {
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const id = series.id?.trim() || `series-${index}`
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// 确保 ID 唯一，如果重复则添加后缀
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let uniqueId = id
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let suffix = 1
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while (usedIds.has(uniqueId)) {
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uniqueId = `${id}-${suffix}`
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suffix++
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}
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usedIds.add(uniqueId)
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return {
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id: uniqueId,
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trackId: series.trackId?.trim() || undefined,
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name: series.name,
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unit: series.unit,
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color: series.color,
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points: normalizeWaveformData(series.data),
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}
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})
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.filter((series) => series.points.length > 0)
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}
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