How to Create Custom Tooltip with Canvas API in Chart JS

Описание

How to Create Custom Tooltip with Canvas API in Chart JS

In this video we will explore how to create custom tooltip with canvas api in chart js. With Chart.js you can create a complete customized tooltip. This will require some complex understanding of the canvas API but it is quite doable.

We will create a plugin and that plugin will create a complete custom tooltip build in canvas. It will show the details, the circle color point style and some custom text. This was based on a question and we will try to duplicate as much as possible based on the picture.

Let's explore this right now!

▬ Chartjs Viewers Question Series ▬▬▬▬▬▬▬▬▬▬

This is part of the Chartjs Viewers Question series. Where we answer viewer questions. This question was asked by one of our viewers. A special thank you to Routhu Rajakumar for asking the question here: https://youtu.be/rLUwF1UQcbI

▬ Materials/References ▬▬▬▬▬▬▬▬▬▬

To keep the video short we might expect you to know parts. These parts we have explained in other videos. You can find the references here below:

Understand setup, config and render init blocks: https://youtu.be/pFuibt5HNog
Starting Code: https://www.chartjs3.com/docs/chart/getting-started/

▬ Got a Question? Comment! ▬▬▬▬▬▬▬▬▬▬

Got a question or special request about a specific item? Comment below and tell me your question. I will make sure to follow up on you!

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Blog: https://www.chartjs3.com/chart-js-blog/
Website: https://www.chartjs3.com
Udemy Course: https://www.udemy.com/course/chart-js/?referralCode=56B57F673E9D41FF4AD2

Chart JS tutorials for Beginners:
? Beginners Serie: https://www.youtube.com/watch?v=W6ai7wu5VIk

Chart JS tutorials for Intermediate:
?️ Most Watched Chart JS Video: https://www.youtube.com/watch?v=4jfcxxTT8H0
⭐ Personal Favorite Chart JS Video: https://www.youtube.com/watch?v=PuFYW1yHzl4

Chart JS Dashboard Series:
? Most Liked Video Series:
Watch Part 1: https://youtu.be/l3MnVpiHXBU
Watch Part 2: https://youtu.be/fDUo-LbrRSo
Watch Part 3: https://youtu.be/xlt5dDa8rz4

▬ About Us ▬▬▬▬▬▬▬▬▬▬▬▬

Why we created these #chartjs and #javascript video tutorials?

WHY
Creating charts in javascript is very rewarding but extremely challenging. The Chart JS library made it easier to render charts. However the chart js documentation is hard to understand for many. It requires a lot of different moving parts to work along. The canvas tag, javascript, arrays and Chart JS all need to be combined to draw an eye catching bar chart or line chart.

The videos explains the chart js documentation in a more visual and easy to understand way. You can follow along with the code and quickly grasp how it works. We cover the code in chart js but also what truly happens and why something happens when we write a line of code. This fundamental understanding gives clarity to you as a developer in chartjs. In short it is the Chart JS video documentation.

HOW
We answer questions from YOU (viewers) by creating an answer video that covers the questions YOU have posted in the comment section.

WHAT
Our goal is to help YOU learn how to draw charts in Chart JS by showing you in video format how to do it.

Chart JS Video Documentation Site: https://www.chartjs3.com

▬ Chart JS 3.7.0 ▬▬▬▬▬▬▬▬▬▬▬▬

Chart JS is a javascript library to draw charts in the canvas tag on your site. Presenting data in a visual manner such as charts is more effective and appealing. All the charts are always coded in the latest Chartjs version which is as of this recording Chart JS 3.7.0.

What type of charts can you make with Chart.JS?
With chart js you can make line chart, bar chart, pie chart, doughnut chart, scatter chart, polar area chart, radar chart, gauge chart and area chart. And with some clever tricks and visual adjustment more can be done.