使用 auto-drawing 画一个鱼骨图

使用 auto-drawing 画一个鱼骨图

auto-drawing 官方文档

基于 vue 环境

安装

yarn add  auto-drawing

代码

fishbone.vue

<template>
  <div class="container">
    <div ref="mainElementRef" class="main-element" />
  div>
template>

<script lang="ts" setup>
  // 鱼骨图
  import { ElMessage } from 'element-plus'
  import {
    onMounted,
    onBeforeUnmount,
    shallowReactive,
    ref,
    reactive
  } from 'vue'
  import type { ZRenderType, ZRenderGroup, ShapeCoreType } from 'auto-drawing'
  import { createCanvas, createGroup, renderCanvas } from 'auto-drawing'
  import type { Params } from './utils'
  import { getCircle, getLine, getText } from './utils'

  interface IState {
    zr: Nullable<ZRenderType>
    group: Nullable<ZRenderGroup>
    clickGroup: Nullable<ZRenderGroup>
  }

  type Direction = 'left' | 'right'

  const props = defineProps({
    /**
     * 画布宽
     */
    width: {
      type: Number,
      default: 300
    },
    /**
     * 画布高
     */
    height: {
      type: Number,
      default: 300
    }
  })

  const state = shallowReactive<IState>({
    zr: null,
    group: null,
    clickGroup: null
  })
  const mainElementRef = ref<any>(null)
  // 基本配置
  const baseOptions = { x: props.width / 2, y: props.height / 2 }

  onMounted(() => {
    state.zr = createCanvas(
      mainElementRef.value as HTMLDivElement
    ) as ZRenderType
    state.group = createGroup(baseOptions) as ZRenderGroup
    state.clickGroup = createGroup(baseOptions) as ZRenderGroup
    state.zr.setBackgroundColor('#fff')

    // 原数据
    const originData: string[] = [...new Array(10)].map((_, index) =>
      String(index)
    )

    // 画布两边留白
    const gutter = 40
    // 鱼刺往后斜的距离
    const angleLength = props.width / 20
    // 鱼刺方向
    const direction: Direction = 'left'
    // 鱼刺长度
    const fishboneLength = (props.height / 2 - gutter) / 2
    // 主轴的基本坐标
    const base = props.width / 2 - gutter
    // 主轴数据
    const main = originData.slice(0, 2)
    // 鱼刺数据
    const body = originData.slice(2)
    // 主轴上面鱼刺数据
    const bodyTop = body.slice(0, Math.ceil(body.length / 2))
    // 主轴下面鱼刺数据
    const bodyBottom = body.slice(Math.ceil(body.length / 2))
    // 主抽的点数量
    const pointCount = Math.max(bodyTop.length, bodyBottom.length)
    // 主抽每个点之间的间距
    const pointStep = (props.width - gutter * 2) / (pointCount + 1)

    // 生成主轴点数据
    const point = [...new Array(pointCount)].map((item, index) => {
      return [-base + (index + 1) * pointStep, 0]
    })

    // 生成鱼刺方法
    const getData = (item: string, index: number, type: string) => {
      const mark = type === 'top' ? -1 : 1
      const directionMark = direction === 'left' ? -1 : 1
      const [baseX, baseY] = point[index]
      const params: Params = {
        start: point[index],
        end: [baseX + angleLength * directionMark, fishboneLength * mark],
        title: item,
        pointType: 'basicPoint',
        tag: 'start'
      }
      // 生成主轴基点圆图形数据
      const baseCircle = getCircle(baseX, baseY, params)
      const [x1, y1] = baseCircle.params.start as number[]
      const [x2, y2] = baseCircle.params.end as number[]
      // 生成鱼刺圆点图形数据
      const bodyTop = getCircle(x2, y2, {
        ...baseCircle.params,
        pointType: 'endpoint',
        tag: 'end'
      })
      // 生成鱼刺直线图形数据
      const line = getLine(x1, y1, x2, y2)
      // 生成鱼刺文字图形数据
      const offset = mark === -1 ? -24 : 14
      const text = getText(x2 - 10, y2 + offset, baseCircle.params.title)
      return { type: 'group', data: [baseCircle, bodyTop, line, text], params }
    }

    /** 上鱼刺数据处理 */
    const bodyTopData = bodyTop.map((item, index) =>
      getData(item, index, 'top')
    )

    /** 下鱼刺数据处理 */
    const bodyBottomData = bodyBottom.map((item, index) =>
      getData(item, index, 'bottom')
    )

    /** 主抽数据处理 */
    const mainCircleData = main.map((item, index) => {
      const cx = index === 0 ? -base : base
      const cy = 0
      const title = item
      const params: Params = {
        title: item,
        cx,
        cy,
        pointType: 'endpoint',
        point: [cx, cy]
      }
      // 主抽圆点图数据
      const circle = getCircle(cx, 0, params)
      // 主抽文字图数据
      const x = cx - 6
      const y = cy - 24
      const text = getText(x, y, title)
      return { type: 'group', data: [circle, text], params }
    })
    const mainLineMap = mainCircleData.map(
      item => item.params.point as number[]
    )
    const [[x1, y1], [x2, y2]] = mainLineMap
    // 主抽直线图数据
    const mainLineData = getLine(x1, y1, x2, y2)
    // 主抽整体图数据
    const mainData = [...mainCircleData, mainLineData]

    // 所有数据
    const data = [
      ...mainData,
      ...bodyTopData,
      ...bodyBottomData
    ] as ShapeCoreType[]

    renderCanvas(state.zr, state.group, data, { scale: true, translate: true })
    renderCanvas(state.zr, state.clickGroup, [], {
      scale: true,
      translate: true
    })

    state.zr.on('click', (e: any) => {
      console.log(e?.target)
      const { shape, type } = e?.target || {}
      const params = (e?.target?.params as Params) || {}
      if (!shape || type !== 'circle' || params.pointType !== 'endpoint') return
      const data: ShapeCoreType = {
        type: 'circle',
        ...shape,
        stroke: 'red',
        fill: 'red',
        zlevel: 2
      }
      // 移除之前的图形
      state.clickGroup?.removeAll()
      renderCanvas(
        state.zr as ZRenderType,
        state.clickGroup as ZRenderGroup,
        [data],
        {
          scale: true,
          translate: true
        }
      )
      setTimeout(() => {
        ElMessage.success('点了我：' + params.title)
      })
    })
  })

  onBeforeUnmount(() => {
    // 销毁画布
    state.zr && state.zr.dispose()
  })

  const containerCSS = reactive({
    width: props.width + 'px',
    height: props.height + 'px'
  })
script>

<style lang="scss" scoped>
  .container {
    height: v-bind('containerCSS.height');
    width: v-bind('containerCSS.width');
    overflow: hidden;
    padding: 0;
    .main-element {
      padding: 0;
    }
  }
style>

utils.ts

export type Params = {
  /**
   * 开始坐标
   */
  start?: number[]
  /**
   * 结束坐标
   */
  end?: number[]
  /**
   * 点坐标
   */
  point?: number[]
  /**
   * 标题
   */
  title: string
  /**
   * 圆点的类型  basicPoint：基点 不可点击   endpoint：端点 可点击
   */
  pointType: 'basicPoint' | 'endpoint' | ''
  /**
   * 圆的圆心x坐标
   */
  cx?: number
  /**
   * 圆的圆心y坐标
   */
  cy?: number

  /**
   * 当前图形标记
   */
  tag?: string
}

/**
 * 生成圆
 * @param cx
 * @param cy
 * @param params
 * @returns
 */
export const getCircle = (
  cx: number,
  cy: number,
  params: Params = { title: '', pointType: '' }
) => ({
  type: 'circle',
  cx: cx,
  cy: cy,
  r: 8,
  fill: '#fa8423',
  stroke: '#fa8423',
  zlevel: 1,
  params: { ...params }
})

/**
 * 生成直线
 * @param x1
 * @param y1
 * @param x2
 * @param y2
 * @returns
 */
export const getLine = (x1: number, y1: number, x2: number, y2: number) => ({
  type: 'line',
  x1,
  y1,
  x2,
  y2,
  stroke: '#000',
  fill: '#000'
})

/**
 * 生成文字
 * @param x
 * @param y
 * @param text
 * @returns
 */
export const getText = (x: number, y: number, text: string) => ({
  type: 'text',
  x,
  y,
  text: text,
  fontSize: 14,
  fontWeight: 400,
  stroke: '#000',
  fill: '#000',
  zlevel: 10
})

效果

https://l-x-f.github.io/auto-drawing-doc/example/example.html#%E9%B1%BC%E9%AA%A8%E5%9B%BE

官方文档

官方文档 https://l-x-f.github.io/auto-drawing-doc/