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Drawing Homer Simpson in Power BI Scatter Chart

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HHugoberry
Last edited Jun 8, 2017
Created on Jun 8, 2017

Homer Simpson emerges from a Power BI scatter chart as a single parametric function, computed by a DAX measure that maps data points across ten piecewise equations. The visualization uses LASTNONBLANK to select the current index and a trigonometric Fourier-series approximation to calculate X and Y coordinates, with the shape materializing through the intricate superposition of hundreds of sine terms. A categorical field switches between the ten function segments, and as users interact with the chart, the formulas dynamically generate the full character outline. The result is a remarkable proof-of-concept, transforming a dense block of mathematical expressions into a familiar cartoon face entirely within the constraints of a standard BI tool.

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