February 2019
Beginner to intermediate
284 pages
6h 20m
English
Content preview from Learn Chart.js
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Patterns
Patterns are a great way to create charts that don't depend on color-coding, and they can be used in color or monochromatic devices or print media. And they are, of course, color-blind safe. You can create patterns using HTML Canvas commands somewhat similar to the ones used for gradients, but it's much easier to use a plugin, such as the Patternomaly plugin, listed in the Chart.js official documentation.
You can obtain Patternomaly by downloading the JavaScript library from its GitHub repository (github.com/ashiguruma/patternomaly) or by using a CDN link:
<script src="https://cdn.jsdelivr.net/npm/patternomaly@1.3.0/dist/patternomaly.min.js"></script>
To generate a pattern, all you have to do is choose a color and call pattern.generate() ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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