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README
Apache-2.0

🎊 喜讯!《uCharts 高性能跨全端图表》荣获插件大赛一等奖。

感谢 DCloud 以及 MPvue 团队的鼓励和认可!感谢各位开发者的问题反馈和赞赏!uCharts 团队一定不负众望,为大家打造完美、易用、高性能的图表而奋斗!再次感谢!

最近1个月更新

  • 2020.03.31 新增 自定义默认选中tooltip的功能(详见曲线图pages/basic/line/curve.vue)。
  • 2020.03.31 新增 自定义tooltip文案的功能(详见曲线图pages/basic/line/curve.vue)。
  • 2020.03.31 修复 K线图不显示tooltip的bug。
  • 2020.03.31 修复 柱状图左上角多个点的bug。
  • 2020.03.31 【v1.9.4】
  • 2019.09.23 修复 曲线图在X轴为矢量驱动下,个别情况图形绘制失真的bug。
  • 2019.09.23 修复 点击图例隐藏图表,全部隐藏后再次点击显示报错的bug。
  • 2019.09.23 修复 普通直角坐标系tooltip点击偏移错误的bug。
  • 2019.09.23 修复 X轴为数据驱动时,坐标轴零点计算错误的bug。
  • 2019.09.22 【v1.9.3】
  • 2019.09.22 新增 【重要】支持X轴配置为非categories类别,即X轴可以为矢量驱动轴,支持line、area图表,series.data需传二维数组格式[[x,y],[x,y],[x,y]]。
  • 2019.09.21 修复 X轴文字大小配置失败导致一系列问题的bug。
  • 2019.09.21 修复 饼图类文字标签距离指引线位置不正确的bug。
  • 2019.09.21 修复 曲线图个别情况下点位超出X轴的bug。
  • 2019.09.09 修复 Y轴在调用更新图表后,更改splitNumber不生效的bug。
  • 2019.09.09 新增 圆弧进图图opts.extra.arcbar.radius/gap/center等参数,支持圆弧进度图series多数组,详见demo,页面地址pages/basic/arcbar/mix
  • 2019.08.30 修复 第二种仪表盘渐变色bug。
  • 2019.08.30 优化 assign方法为深拷贝。
  • 2019.08.29 新增 opts.extra.area.gradient 是否开启区域图渐变色。
  • 2019.08.29 新增 opts.dataPointShapeType 数据点图形标识类型 可选值:实心solid、空心hollow。
  • 2019.08.29 新增 opts.extra.radar.gridCount 雷达图网格数量。
  • 2019.08.29 修复 数据标签距离折线点较近的问题。
  • 2019.08.25 【v1.9.2】
  • 2019.08.25 优化 大数据量下,开启滚动条,拖拽体验卡顿的bug,提升渲染速度,修复的图表有柱状图、折线图、区域图、混合图、K线图。
  • 2019.08.22 修复 雷达图不显示自定义数据点标识样式的bug。
  • 2019.08.22 新增 数据点标识样式 opts.series.pointShape,有效值为diamond◆, circle●, triangle▲, rect■。
  • 2019.08.21 新增 第二种仪表盘样式progress,增加【uCharts 跨端图表改造教程】
  • 2019.08.20 修复 不能隐藏Y轴的bug。
  • 2019.08.20 修复 单个Y轴时,开启标题并且标题不给字体大小的情况下,图表绘制失败的bug。
  • 2019.08.20 修复 混合图不传Y轴data的情况下绘图失败的问题。

uCharts 官方网站

https://www.ucharts.cn

码云 gitee 开源地址

小伙伴们,需要 star 哦~~~

在线文档(参数在 API 章节)

在线文档(备用地址)

QQ交流群:371774600

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快速体验

一套代码编到 7 个平台,依次扫描二维码,亲自体验 uCharts 图表跨平台效果!iOS 因 demo 比较简单无法上架,请自行编译。

更新记录

支持图表类型

  • 饼图 pie
  • 圆环图 ring
  • 线图 line(直线、曲线)
  • 柱状图 column(分组、堆叠、温度计)
  • 区域图 area(直线、曲线)
  • 雷达图 radar
  • 圆弧进度图 arcbar
  • 仪表盘 gauge
  • K线图 candle
  • 混合图 mix(支持 Point、Line 直线曲线、Column、Area 直线曲线)
  • 玫瑰图 rose(面积模式、半径模式)
  • 词云图 word(横向、横纵混排)
  • 漏斗图 funnel
  • 地图 map

插件特点

  • 改造后的插件可以跨端使用,支持 H5、小程序(微信/支付宝/百度/头条/QQ/360)、APP,调用简单方便、性能及体验极佳。
  • 虽然没有 Echarts 及 F2 图表功能强大,但可以实现一套业务逻辑各端通用,并解决了支付宝小程序图表显示模糊等问题。
  • 支持单页面多图表,demo 中单页 10 个图表,响应速度超快。
  • 支持入场动画及 ToolTip 动画效果。
  • 独特支持 横屏模式

为何不用 Echarts?

  • 相比 Echarts 及 F2 的复杂的设置,本插件几乎等于傻瓜式的配置。
  • Echarts 在跨端使用更复杂,本插件只需要简单的两个 <canvas> 标签轻松区别搞定,代码整洁易维护。
  • Echarts 在 iOS 端图表显示错位,只能引用网页解决。
  • 本插件打包后的体积相比 Echarts 小很多很多,所以性能更好。
  • 如果您是 uni-app 初学者,那么强烈建议您使用 uCharts,并且目前可以跨全端通用,减少工作量,增强一致性体验。
  • 图表样式均可自定义,懂 JS 的都可以读懂插件源码,直接修改 u-charts.js 源码即可。
  • 本插件经过大量测试,反复论证并加以改造而成,请各位放心使用。

uni-app 图表选型参考流程

亲手教您如何改造uCharts,打造您的专属图表

  • 为何要改造 uCharts?
  • 并不是所有图表插件直接拿来就可以满足客户需求,如果您的 UI 设计师设计一个图表,如下图:

  • 您会发现这个图表即使在 echarts 里也不是很好实现,那么就需要我们自己动手去实现。下面就让我们一起来完成,本文旨在抛砖引玉,希望各位朋友能够更好的应用 uCharts 来完成您的项目,如果您有更好的设计,请提交您的 PR 到 Github uCharts跨端图表,帮助更多朋友,感谢您的付出及贡献!

【uCharts 跨端图表改造教程】

图表示例

常见问题

各位遇到问题请先参考以下问题,如果仍不能解决,请留言。

通用问题

  • 如果用在您的项目上图表不显示,请先运行 demo 页面,如果 demo 页面也无法显示,请查看全局样式是否定义了 canvas 的样式,如有请取消。
  • 图表背景颜色问题,很多朋友设置图表背景颜色时候,只修改了 viewcanvascss,忘记了修改实例化参数中的 background:'#FFFFFF',导致图表画板右侧有一道白条(这个是图表配置中的右边距),所以特修改了 demo 中的 柱状图 的背景颜色供大家参考。
  • 如果遇到 图表与预期尺寸不符合,请检查 canvas 标签上的 csscWidthcHeihgt 设置的值是否相符,css 请用 upx 为单位,cWidthcHeihgt 的单位为 px,请参考 demo 用 uni.upx2px() 方法转换。
  • 如遇到开启拖拽,而实际 无法拖拽 的情况,请先检查 canvas 标签是否绑定的 touch 事件。
  • 如果涉及到 v-if 切换显示图表组件,第二次可能会变空白,建议用 v-show 替代 v-if 切换显示图表组件。

头条问题

  • 头条小程序目前不支持拖拽事件,后续官方支持的话,不必更换 JS 文件,直接可用。

支付宝问题

  • 在高分屏模式下,如果发现图表已显示,但位置不正确,请检查上级 view 容器的 样式
  • 为了解决高分屏模糊问题,需要在canvas标签定义width、height和style属性来控制canvas的缩放来达到匹配高分屏,具体逻辑为width、height的数值应为图表根据pixelRatio的比例放大后的尺寸,而style的尺寸为屏幕的宽和高(并非真实物理像素点)例如:
width="750" height="500" style="width:750rpx;height:500rpx;"。
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简介

高性能跨平台图表库,支持H5图表、APP图表、小程序图表(微信小程序、支付宝小程序、百度小程序、头条小程序、QQ小程序、360小程序),支持饼图、圆环图、线图、柱状图、区域图、雷达图、圆弧进度图、仪表盘、K线图、条状图、混合图、玫瑰图、漏斗图、词云图、地图。 展开 收起
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