chartjs-adapter-date-fns | date-fns adapter for Chartjs | Date Time Utils library
kandi X-RAY | chartjs-adapter-date-fns Summary
kandi X-RAY | chartjs-adapter-date-fns Summary
This adapter allows the use of date-fns with Chart.js. Requires Chart.js 2.8.0 or later and date-fns 2.0.0 or later. Note: once loaded, this adapter overrides the default date-adapter provided in Chart.js (as a side-effect).
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chartjs-adapter-date-fns Examples and Code Snippets
License : Strong Copyleft (CC BY-SA 4.0)
Copyscales: {
x: {
type: "time",
time: {
format: "MM/DD/YY",
tooltipFormat: "ll",
},
ticks: {
display: false,
}
},
,
}
npm install date-fns chartjs-adapter-date-fns --save
Community Discussions
Trending Discussions on chartjs-adapter-date-fns
QUESTION
I would like to increase the size of the following elements. Could you please edit the code below to make these elements bigger:
- the label text size (the NaCl and SalinityDrift boxes above the chart)
- the numbers themselves in x,y,y2 axes
Script:
...ANSWER
Answered 2021-Oct-11 at 20:05You are putting the ticks config in the scale title while its supposed to be on the root of the scale itself. Also for the boxes font size on top you need to configure it in the options.plugins.legend.labels namespace.
Live example:
QUESTION
Suppose several independent time series of (unixTime, value) points. For example, CarSpeed and CarRemainingFuel. I would like to create a multi axis plot (Y1 axis for CarSpeed and Y2 axis for CarRemainingFuel). The similar questions do not cover the case of "time" type of x axis.
Below is I working example of a single time series plot. It needs to be extended for a multi-axis case.
...ANSWER
Answered 2021-Oct-09 at 19:02You can just add an extra scale in the scale config and use the yAxisID in the dataset to link to it
QUESTION
I am trying to implement this tutorial and could not get it done. https://www.chartjs.org/docs/latest/axes/cartesian/time.html
Input: list of objects with (time,value) attributes. Time is Integer that means unix time in seconds; value is Float.
The tutorial says "Date Adapters. The time scale requires both a date library and a corresponding adapter to be present. Please choose from the available adapters".
Date library, date-fns: https://github.com/date-fns/date-fns
Question 1. how to install/include the date-fns library? The documentation says "npm", but I think it is only for Node.js, but I have a Django project, Ubuntu. If I just download the zip, there is a bunch of files inside.
Adapter, chartjs-adapter-date-fns https://github.com/chartjs/chartjs-adapter-date-fns.
Question 2. how to install the fns adapter? The documentation says "npm", but I have a Django project, Ubuntu. BUT, if I include , I feel it is enough.
Question 3. after installing adapter and date library, how to fix the script below to make the plot work (Time Cartesian Axis)? I think it is all about updating line point["x"] = elem.time; to convert a unix time to some appropriate type.
HTML
...ANSWER
Answered 2021-Sep-26 at 13:58Installing all the 3 required libs can indeed be done using script tags, see live example underneath.
The reason your data doesnt show is because chart.js doesnt expect a data array in the data field. In the data field it expects an object with at least a key for all the datasets which is an array and an optional labels array, but since you are using object format for your data the labels array is not neccesarry.
Each dataset has its own label for the legend and in the dataset object you configure the data array in the data field. See live example:
QUESTION
Kia ora! I am trying to implement a Chart.JS time cartesian axis. I've read the docs and found out I need to add a datetime library and adapter as of v3.x.x, so I've done that.
For some reason all my data points are on time=0 from what I can tell. It's like the time value is not being parsed properly, I think.
Chart.js uses timestamps defined as milliseconds since the epoch (midnight January 1, 1970, UTC) internally. However, Chart.js also supports all of the formats that your chosen date adapter accepts. You should use timestamps if you'd like to set parsing: false for better performance.
So, I have configured my API to return millisecond timestamps and defined parsing:false in the x axis options.
Here is a broken Codepen: https://codepen.io/Finnito/pen/KKqgXez, but the code is also attached below.
...ANSWER
Answered 2021-Sep-04 at 21:03The scales are part of the options object, if you place it in the options it works just fine:
QUESTION
I'm using Chart.js in client-side HTML with the date-fns adapter (https://github.com/chartjs/chartjs-adapter-date-fns) to allow a time cartesian axis (https://www.chartjs.org/docs/latest/axes/cartesian/time.html).
I'm loading chartjs-adapter-date-fns from the CDN - i.e. my page loads chartjs-adapter-date-fns.bundle.min.js. (I'm not using the import and webpack.)
Is it still possible to configure locale support as per https://github.com/chartjs/chartjs-adapter-date-fns#locale-support-via-scale-options? If so, please can you give me an example of how to access the locale class to pass to adapters.date.locale in the scale options.
Documentation states:
...ANSWER
Answered 2021-Aug-11 at 11:02I switched to Luxon because i was having trouble with locales when using date-fns. Then it's a simple one liner: luxon.Settings.defaultLocale = "fi";
The luxon library is also great for parsing time, so i recommend using it if possible. More on luxon
QUESTION
I want to create a diagram with Chart.js where the x-Axes is the time.
I want the diagram to show a entire day (from 0 a.m. to 24 p.m.).
Since my data doesn't start at 0 a.m. and doesn't end at 24 p.m. I wanted to set a min and max value for the axes. I tried some varietions but nothing really worked.
index.html:
...ANSWER
Answered 2021-Aug-08 at 15:53You are trying to use v2 and v3 config at the same time, this wont work. You need to remove the array format and only use the objects to define scales.
When placing the min and max props at the root of the x object for the x scale it works fine, although the time between the min and max you are using is only 1,5 minute:
QUESTION
I am trying to use a method to fetch data from a json file and add it to my chart.js chart. I keep getting a "Maximum call stack size exceeded", this is specifically caused by the this.chartData.push(el.value); line, I've tried changing naming around to no success as well as using this.$data.chartData.
I am using vue3, chart.js v3 and j-t-mcc/vue3-chartjs
here is a codesandbox.io of the code with the error.
...Child (chart) component
ANSWER
Answered 2021-Aug-03 at 18:26it's work when adding a simple v-if with a ready property that we turn it true when we finish the foreach of pushing data,
the problem is with your SampleChart.vue componenent , you make chart data inside the setup , so when data changed sampleChart will not be changed in any case , it's already calculated.
you can learn more about computed, ref/reactive
QUESTION
I have created a line chart and on hover of the points am not able to see the tooltips. It seems to throw error while hovering on line points. TypeError: Cannot read property 'format' of undefined
So far I was able to render the line chart with time data which required the adapters. As per the docs, tried changing the units and wanted to see axis labels but that is also not visible.
Below is the Chart configuration and fiddle:
ANSWER
Answered 2021-May-30 at 14:02This is because you added an adapter but forgot to add the corosponding date library. See working example:
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