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Figure_size_handling_for_Quarto.md

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Figure size handling for Quarto

When processing a document, Quarto provides document-level options to the kernel, including

fig-width: the requested figure width in inches

fig-height: the requested figure height in inches

Matlab's synchronization of PaperPosition and Position poses a problem for reliable implementation of these Quarto options. They should seamlessly work if the user doesn't manipulate defaults explicitly, but not interfere with normal operation and therefore avoid changing defaults as far as possible.

If PaperPositionMode is 'auto', it is impossible to set the PaperPosition of new figures via defaultFigurePaperPosition, because even if defaultFigurePosition is not set, there is always the fallback factoryFigurePosition which overrides it.

We choose the following strategy which limits interference to Paper* properties.

  • set defaultFigurePaperUnits to inches
  • set defaultFigurePaperPosition to [0, 0, fig-width, fig-height]
  • set defaultFigurePaperPositionMode to 'manual'