
During February 2026, Renato Ferracini Alves contributed to the HarrisonKramer/optiland repository by developing Zemax circular aperture support, enabling the parsing and visualization of circular apertures from Zemax files. He implemented a new file parser and enhanced the drawing method to integrate seamlessly with matplotlib axes, providing a demo notebook to illustrate usage. Renato also addressed a bug in the GeometricMTF module, refining the diffraction scale calculation to derive the maximum frequency from the cutoff, thereby improving simulation accuracy. His work leveraged Python, Jupyter Notebook, and data visualization techniques, resulting in clearer optical modeling and more user-friendly analysis tools.

February 2026 monthly summary for HarrisonKramer/optiland. Key features delivered include Zemax Circular Aperture Support (File Parser and Visualization) with a new circular aperture reader, updated drawing method to accept matplotlib axes, and a demo notebook illustrating the implementation. A major bug fix was GeometricMTF diffraction scale calculation when max_freq is set to 'cutoff', deriving the maximum frequency from the cutoff to improve optical simulation accuracy. Aperture Visualization Enhancements were added for 2D projections with a toggle to control aperture visibility and reduced visual clutter by removing vignetted rays. These efforts improve simulation fidelity, visualization clarity, and user experience for optical analysis.
February 2026 monthly summary for HarrisonKramer/optiland. Key features delivered include Zemax Circular Aperture Support (File Parser and Visualization) with a new circular aperture reader, updated drawing method to accept matplotlib axes, and a demo notebook illustrating the implementation. A major bug fix was GeometricMTF diffraction scale calculation when max_freq is set to 'cutoff', deriving the maximum frequency from the cutoff to improve optical simulation accuracy. Aperture Visualization Enhancements were added for 2D projections with a toggle to control aperture visibility and reduced visual clutter by removing vignetted rays. These efforts improve simulation fidelity, visualization clarity, and user experience for optical analysis.
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