Graph Art with Charts API
summary
Charts API gets repurposed as a drawing canvas using math not presets: three finished pieces built from only three chart types, created with polar coordinates, arc tangent stems, S transformation for tilt, and layering to fake illustration; code computes points with circle equations and piecewise/parametric math, then fills with SwiftUI gradients and animates interactions to polish results — line pro and area pro, parametric functions, rectangle pro all actually render petals, a smiley face, and pixel art that work as shown.
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