Add `optika.distortion.PolynomialDistortionModel` which can interpolate between object and sensor coordinates.#154

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feature/polynomial-distortion

May 30, 2026

Commits on May 30, 2026

Add `optika.distortion`, a polynomial model of optical distortion.

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Require named-arrays~=1.5 for PolynomialFitFunctionArray.center.

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Add `PolynomialDistortionModel.plot_residual()`.

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Simplify plot_residual column count for full test coverage.

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Set MPLBACKEND=agg in the tests workflow.

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Improve plot_residual example: quadratic in both axes, equal aspect.

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Add figsize, vmin, and vmax keyword arguments to plot_residual().

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Suppress plot_residual example output with a trailing semicolon.

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