This is code and text behind the Advanced R book. The site is built with bookdown.
Omnigraffle:
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Make sure that 100% is "one postscript point": this ensures canvas size matches physical size. Export at 300 dpi scaled to 100%. 
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Set grid to 1cm with 10 minor units. Ensure there is 2mm padding around all sides of each diagram. 
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Conventions: - Text is set in inconsolata 10pt, with text padding set to 3.
- Emoji set in "Apple Color Emoji" 8pt.
- Default scalar size is 6mm x 6mm.
- Symbols have 4pt rounded corners and plum border.
- Arrow heads should be set to 75%.
- Names should be coloured in steel.
 
Book:
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Inconsolata scaled (by fontspec) to match main font is 9.42pt. 
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Preview at 100% matches physical size of book. Maximum diagram width is 11cm. 
RMarkdown
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Remove dpi specification from include_graphics(), instead relying oncommon.R. Chunk should haveoutput.width = NULL.
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Beware caching: after changing the size of an image you may need to clear the cache before it is correctly updated. 
To zip files to for publisher:
mkdir crc
cp _book/_main.tex crc
cp -r _bookdown_files/*_files crc
cp -r diagrams crc
cp -r screenshots crc
cp -r emoji crc
cp mina.jpg crc
cp krantz.cls crc
cp book.bib crc
rm crc/diagrams/*.graffle
zip -r adv-r-source.zip crc
Please note that Advanced R is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.