What if a pie chart could tell a story not just show numbers?
In this article, I walk through how I built a fully interactive, animated pie chart entirely inside Power BI using DAX, SVG, and embedded JavaScript no custom visuals, no external tools.
The goal? To visualize current vs. previous year profit, plus the delta, in a way that’s not just informative, but engaging and intuitive.
You’ll learn how I:
Calculated slice angles dynamically with DAX
Used SVG paths to render arcs with precision
Embedded hover animations and keyboard interaction
Designed a delta slice that visually communicates change
Solved edge cases around negative deltas and slice overlap
The result is a chart that doesn’t just look good it makes you feel the data.
If you're ready to rethink what’s possible with native Power BI visuals, this deep dive is for you.
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