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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团队一定会不负众望,为大家打造完美、方便、高性能的图表而奋斗!再次感谢!

最近更新

  • 2019.06.30 新增玫瑰图,详见demo。
  • 2019.06.30 新增雷达图ToolTip效果,详见雷达图demo。
  • 2019.06.28 新增component.vue组件,并提供组件下使用uCharts应用示例。
  • 2019.06.26 新增各小程序端原生调用js文件支持(非uin-app项目),详见gitee码云首页目录。
  • 2019.06.26 新增对dataLabel字体颜色的控制,增加opts.series.textColor参数。
  • 2019.06.25 优化29处forEach循环,更替为for循环。
  • 2019.06.24 将K线的均线挂载到opts上,方便调用。更改demo网络请求地址。
  • 2019.06.23 完善K线图,增加K线图与柱状图联动demo,详见应用->K线图与柱状图联动
  • 2019.06.22 增加opts.xAxis.labelCount参数,X轴可见区域标签数量(即X轴数刻度标签单屏幕限制显示的数量),用于解决x轴文案问题。
  • 2019.06.22 优化拖拽事件,增加opts.extra.touchMoveLimit 图表拖拽时,每秒重新渲染的帧数用于图表拖拽卡顿
  • 2019.06.17 增加updateData更新图表时,是否显示动画效果animation ,参见API更新图表方法。
  • 2019.06.17 增加updateData更新图表时,滚动条位置设置scrollPosition,参见API更新图表方法。

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)

QQ交流群:371774600

口令【gitee

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

未来计划(V1.0至2.0版本)

  • 2019.07.xx 计划加入条状图分时图玫瑰图漏斗图
  • 2019.07.xx 推迟计划加入第二种仪表盘样式,增加《亲手教您如何改造uCharts,打造您的专属图表》教程。
  • 2019.07.xx 计划加入渐变颜色填充功能
  • 2019.07.xx 计划修复折线图样式为曲线时,个别情况下曲线超出x轴的问题。
  • 2019.07.xx 计划加入辅助线(标记线)功能,支持柱状图、折线图、区域图、K线图
  • 2019.07.xx 计划加入双Y轴功能,支持Y轴双坐标系。

未来计划(全新V2.0版本)

2019.5.20重要又浪漫的日期,uCharts团队正式建立了,我们将以追求极致、追求完美的极客精神来打造uCharts。uCharts2.0版本正在前期策划中,将以全新结构重写uCharts,支持多Y轴、多X轴、自定义图例位置、以及更多图表类型,请各位敬请期待。

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)
  • 条状图 bar(开发中)
  • 玫瑰图 rose(开发中)
  • 漏斗图 funnel(开发中)

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)、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。
  • 独特支持横屏模式感谢masterLi提供需求。

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githubuCharts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(暂未完成,请关注)

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view和canvas的css,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csscWidth、cHeihgt设置的值是否相符,css请用upx为单位,cWidth、cHeihgt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canvas模糊问题,使用了css的transform,所以请修改上级样式使canvas容器缩放至相应位置。
  • 如果将canvas放在多级组件下,遇到ToolTip不显示或点击区域不正确,请在touch事件中增加以下代码解决。
//#ifdef MP-ALIPAY
e.mp.currentTarget.offsetTop+=uni.upx2px(510);
//#endif

uni.upx2px(510);是canvas组件的上级组件的高度

支付宝小程序IDE中不显示,但运行到真机是可以显示的,请真机测试。

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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),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。 展开 收起
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