built outputter function about cmapplot

[nmpeterson]

Just a note: everything should be exported in SVG format for Comms, as that is easiest for them to edit in Illustrator.

[matthewstern]

do we want the ability to export in jpg and pdf as well, for more immediate uses that don't involve further tweaking by comms?

[nmpeterson]

I imagine this would be useful, although PNG (or GIF) should be used instead of JPG, which is good for photos but not graphics. I think an output_format parameter for the function, with a default of "svg" would be a good way to implement this, so that if not explicitly specified then an SVG will be exported.

[matthewstern]

Once we get the font situation figured out, it would be cool if this function issued a warning if the correct fonts were not being used.

[matthewstern]

@sarahcmap, not sure this was 100% clear from our meeting yesterday: In terms of final chart layout, our direction at this point is to combine the "designer guidelines" from the link in the first post of this issue with a graphic from a recent policy update, for example here. The current model has the title, source, and note on the left and the legend above. Nancy will supposedly be updating the designer guidelines soon with the new design, but if that doesn't come down the pipe soon it's probably worth going to chat with her.

Also, where do we want to go with the larger question of what goes in theme_cmap and what goes in finalize_plot? It seems like some aspects are really clearly in this project (e.g. file format, dimensions, etc) but things like font size, legend placement, etc are maybe undetermined at this point. Might be worth sitting down with @MMenninger before going too deep?

[sarahcmap]

Thanks for the additional details Matt - I'm still just getting started but I'll touch base with Martin/Nancy as needed!

[nmpeterson]

Be forewarned that if we add a PDF-exporting option, we will probably run into issues with the fonts. See this StackOverflow Q&A for more info.

[matthewstern]

• Width of sidebar as argument – percentage?
• Auto-breaking title and note/source text (in progress)
• Space between title and subtitle/note
• Letting of title and note/source text (see details from Nancy in post below)
• Strong (2 point) horizontal line across top (in progress)
• note: this line seems thicker than 2 points...setting to 3 for now (can research units more)
• Four output options (based on best practices document):
  • Default = Indesign (note: font sizes inherited from theme)
  • Web = Web
  • Report = Word
  • Presentation = Powerpoint
• Multiple output modes:
  • View in R (use Window function so width is specified?)
  • SVG
  • PNG
  • PDF (note font challenges, see Noel's comment above)

[matthewstern]

Specs from Nancy:

graph area

• Space for graph title/note/source: 2.1503 in --> 154.8 px/23.3% of plot area. setting to 23% (adjustable) with width=670.
• Space between the title and graph: 0.16 in --> 11.5px/1.7% of plot area. setting to 2% (not adjustable for now) with width=670.
• Graph: 6.921 in --> 664 px/75% of plot area. setting based on graph title/note/source pct

other

• line on top of title/graph: .0277 in --> this is about right with line weight of 3 at y=0.92
• leading for Title: 19pt --> this is slightly less than the default leading for 17pt font (according to Adobe illustrator). set to appropriate ratio = 0.93. the lineheight argument in gpar seems to consider lineheight of 1 as being the lineheight with the default leading (so it will be larger than the actual font size)
• leading for Note/Source: 13.2pt --> this is the default leading for 11pt font (according to Adobe Illustrator)

[matthewstern]

some links on grob management for safe keeping:

• https://cran.r-project.org/web/packages/gridExtra/vignettes/arrangeGrob.html
• https://stackoverflow.com/questions/59012782/ggplot2-how-to-align-grobs-to-sides-using-arrangegrob
• https://genviz.org/module-07-appendix/0007/01/01/advancedggplot2/