使用 auto-drawing 小程序开发定制画一个鱼骨图
基于 vue 环境
安装
yarn add auto-drawing- 1
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) ) // 小程序开发定制画布两边留白 const gutter = 40 // 小程序开发定制鱼刺往后斜的距离 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>- 1
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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})- 1
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