chart.js

问题 I have a regular Chartjs doughnut chart with multiple datasets, using this code for the dataset: datasets: [ { label: 'Bugs', data: [ 60 , 6.6666666666667 , 33.333333333333 ], backgroundColor: ['#25CFE4', '#92E7F1', '#eeeeee'], }, { label: 'Fixes', data: [ 60 , 0.44444444444444 , 39.555555555556 ], backgroundColor: ['#514463', '#8C75AB', '#eeeeee'], }, { label: 'Redesigns', data: [ 33.333333333333 , 10.37037037037 , 56.296296296296 ], backgroundColor: ['#1B745F', '#40C1A0', '#eeeeee'], } ] };

问题 I have a chart with data points that are null. Chart.js does the correct thing and skips those data points but I would like to have a 'dashed' line fill in the missing parts. For example, in the below code the line should be solid as in the CodePen link, but should be dashed from "Blue" to "Yellow". I know the spanGaps option is available but I would like to apply a different style to it. Does anyone have any thoughts on how to accomplish this? I am using Chart.js 2.x var ctx = document

问题 I have a chart with data points that are null. Chart.js does the correct thing and skips those data points but I would like to have a 'dashed' line fill in the missing parts. For example, in the below code the line should be solid as in the CodePen link, but should be dashed from "Blue" to "Yellow". I know the spanGaps option is available but I would like to apply a different style to it. Does anyone have any thoughts on how to accomplish this? I am using Chart.js 2.x var ctx = document

问题 I am working on chart.js plugin with real time chart so i want to pause scrolling chart but when i calling pause dynamically its not working. pausestart:boolean; plugins: { streaming: { onRefresh: function(chart: any) { chart.data.datasets.forEach(function(dataset: any) { dataset.data.push({ x: Date.now(), y: Math.random() }); }); }, duration: 12000, refresh: 100, delay: 1000, frameRate: 60, pause: this.pausestart } } i am setting pausestart initially false after click on pause button set it

问题 I am working on chart.js plugin with real time chart so i want to pause scrolling chart but when i calling pause dynamically its not working. pausestart:boolean; plugins: { streaming: { onRefresh: function(chart: any) { chart.data.datasets.forEach(function(dataset: any) { dataset.data.push({ x: Date.now(), y: Math.random() }); }); }, duration: 12000, refresh: 100, delay: 1000, frameRate: 60, pause: this.pausestart } } i am setting pausestart initially false after click on pause button set it

问题 Sometimes chart value is the same height as chart height. For example im my picture red bar is 6, the same as y-axis top number. Can I add some buffer so chart bar never reaches top of y axis? Lets say y axis would go to 7 now (or similar). Image show my problem (open image in new window for better view) 回答1: By Axis Range Settings https://www.chartjs.org/docs/latest/axes/cartesian/linear.html#axis-range-settings suggestedMax: 7 1/2. Static max value example Change min to 10 and max to 90

问题 I'm using ng2-charts to draw a bar chart in my Angular application. At some point I had to add static lines to my charts, and I decided to use chartjs-plugin-annotation . Connecting these two libraries together is not well documented, but after some googling I was eventually able to get it working. Here is a minimalistic demo. Yet while it works well on stackblitz, the IDE on my local machine complains that annotation is not expected by ChartOptions interface: public barChartOptions:

问题 I'm using ng2-charts to draw a bar chart in my Angular application. At some point I had to add static lines to my charts, and I decided to use chartjs-plugin-annotation . Connecting these two libraries together is not well documented, but after some googling I was eventually able to get it working. Here is a minimalistic demo. Yet while it works well on stackblitz, the IDE on my local machine complains that annotation is not expected by ChartOptions interface: public barChartOptions:

问题 I'm using ng2-charts to draw a bar chart in my Angular application. At some point I had to add static lines to my charts, and I decided to use chartjs-plugin-annotation . Connecting these two libraries together is not well documented, but after some googling I was eventually able to get it working. Here is a minimalistic demo. Yet while it works well on stackblitz, the IDE on my local machine complains that annotation is not expected by ChartOptions interface: public barChartOptions:

问题 I use a vertical bar chart and I want to specify different colors for each bar: main.js import Chartkick from 'vue-chartkick'; import Chart from 'chart.js'; Vue.use(Chartkick.use(Chart)); File.vue <column-chart :data="chartData" width="800px" :colors="['#0b6e00', '#006ca2', '#ff3333', '#d60001']"></column-chart> But only the first color is used and all bars have the same colour. I tried to pass a :library attribute with backGround colour parameter as well without luck. Line chart accepts