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Please try to create a codepen.io to demo what you have until now and what the problem is, so people can help you much better.
Creating a codepen.io is very simple by extending one of Quasar’s Qtree examples:
What do you mean by “how to use”?
Are you looking for solutions or overall techniques?
For solutions, I know of Apex Charts.
One of our community members has Apex chart examples with Quasar too: https://github.com/patrickmonteiro/quasar-apexcharts