Initial commit

.Rbuildignore

+^LICENSE\.md$

.gitignore

+.Rhistory
+.RData
+.Rproj.user

DESCRIPTION

+Package: ggpomological
+Version: 0.0.0.9000
+Title: Pomological plot themes for ggplot2
+Description: Pomological plot themes and scales for ggplot2 (in progress)
+Authors@R: person("Garrick", "Aden-Buie", , "g.adenbuie@gmail.com", c("aut", "cre"))
+License: CC0
+Encoding: UTF-8
+LazyData: true
+ByteCompile: true

LICENSE.md

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Readme.Rmd

+---
+title: "Pomological Colors"
+author: "Garrick Aden-Buie"
+date: "2/4/2018"
+output: github_document
+editor_options: 
+  chunk_output_type: console
+---
+
+```{r setup, include=FALSE}
+knitr::opts_chunk$set(echo = TRUE, fig.width=8, fig.height=5)
+```
+
+## Pomological Plots
+
+![](pom-examples.jpg)
+
+Inspired by talk at **LINK rstudio conf** by **LINK talk about parameterized rmarkdown**.
+
+Went through **LINK USDA pomological** oh and also **LINK @pomological**.
+
+<https://usdawatercolors.nal.usda.gov/pom>
+
+## Color Palette
+
+Picked out a LOT of colors.
+
+![](pomological_colors.png)
+
+Chose a few:
+
+```{r}
+pomological_palette <- c(
+  "#c03728", #red
+  "#919c4c", #green darkish
+  "#fd8f24", #orange brighter
+  # "#f2692e", #orange
+  "#f5c04a", #yelloww
+  "#e68c7c", #pink
+  "#828585", #light grey
+  "#c3c377", #green light
+  "#4f5157", #darker blue/grey
+  # "#912b1b", #red, darker
+  "#6f5438", #lighter brown
+  # "#ec4339", #red/pink
+  # "#6b452b", #brown
+  NULL
+)
+
+pomological_base <- list(
+  "paper" = "#fffeea",
+  'paper_alt' = "#f8eed1",
+  'light_line' = '#efe1c6',
+  'medium_line' = "#a89985",
+  'darker_line' = "#6b452b",
+  'black' = "#3a3e3f",
+  "dark_blue" = "#2b323f"
+)
+
+# Palette colors
+scales::show_col(pomological_palette)
+# Base colors
+scales::show_col(unlist(pomological_base))
+```
+
+
+## Setup theme and scales
+
+Theme is basic in two flavors, one with paper-colored background and the other transparent bg.
+
+Uses fonts from Google! I tried a few, liked 
+
+- [Homemade Apple](https://fonts.google.com/specimen/Homemade+Apple/)
+- [Amatic SC](https://fonts.google.com/specimen/Amatic+SC/)
+- [Mr. Bedfort](https://fonts.google.com/specimen/Mr+Bedfort/)
+
+I also have a handwriting font from my own handwriting that looks great
+
+```{r pomological-theme}
+pomological_theme <- function(
+  base_family = 'Homemade Apple', 
+  base_size = 16,
+  text.color = NULL,
+  plot.background.color = NULL,
+  panel.grid.color = NULL,
+  panel.grid.linetype = 'dashed',
+  axis.text.color = NULL,
+  axis.text.size = base_size * 14/16,
+  base_theme = ggplot2::theme_minimal()
+) {
+  pomological_base <- list(
+    "paper" = "#fffeea",
+    'paper_alt' = "#f8eed1",
+    'light_line' = '#efe1c6',
+    'medium_line' = "#a89985",
+    'darker_line' = "#6b452b",
+    'black' = "#3a3e3f",
+    "dark_blue" = "#2b323f"
+  )
+  
+  base_theme + 
+    ggplot2::theme(
+      text = element_text(
+        family = base_family, 
+        size = base_size, 
+        color = ifelse(hasArg(text.color), text.color, pomological_base$dark_blue)
+      ),
+      plot.background = element_rect(
+        fill = ifelse(hasArg(plot.background.color), plot.background.color, pomological_base$paper), 
+        color = NA
+      ),
+      panel.grid = element_line(
+        color = ifelse(hasArg(panel.grid.color), panel.grid.color, pomological_base$light_line),
+        linetype = panel.grid.linetype),
+      axis.text = element_text(
+        color = ifelse(hasArg(axis.text.color), axis.text.color, pomological_base$medium_line), 
+        size = axis.text.size)
+    )
+}
+
+pomological_theme_nobg <- function(...) {
+  dots <- list(...)
+  dots$plot.background.color <- 'transparent'
+  do.call('pomological_theme', args = dots)
+}
+```
+
+
+scales...
+
+
+```{r pomological-scales}
+# learned this from https://github.com/hrbrmstr/hrbrthemes/blob/13f9b59579f007b8a5cbe5c699cbe3ec5fdd28a1/R/color.r
+pomological_pal <- function() scales::manual_pal(pomological_palette)
+
+# Scale color
+scale_colour_pomological <- function(...) ggplot2::discrete_scale("colour", "pomological", pomological_pal(), ...)
+scale_color_pomological <- scale_colour_pomological
+
+# Scale fill
+scale_fill_pomological <- function(...) ggplot2::discrete_scale('fill', 'pomological', pomological_pal(), ...)
+```
+
+
+In the future, I might come back to this to:
+
+1. Increase colors in discrete scale
+
+2. Setup a color-pairs plot. Lots of great color pairs in the extracted colors.
+
+3. Set up continuous scale colors (meh.)
+
+
+## Add paper background!
+
+This is great. Uses **LINK magick** to add paper background.
+
+```{r paint_pomological}
+paint_pomological <- function(
+  pomo_gg, 
+  width = 800, 
+  height = 500, 
+  pointsize = 16, 
+  pomological_background = 'pomological_bg.png', 
+  pomological_overlay = "pomological_overlay.jpg",
+  outfile = NULL,
+  ...
+) {
+  requireNamespace('magick', quietly = TRUE)
+  requireNamespace('glue', quietly = TRUE)
+  if (!file.exists(pomological_background)) {
+    warning(glue::glue("Cannot find file \"{pomological_background}\", so you can have your plot back!"))
+    return(pomo_gg)
+  }
+  
+  # Paint figure
+  gg_fig <- magick::image_graph(width, height, bg = 'transparent', pointsize = pointsize, ...)
+  print(pomo_gg)
+  dev.off()
+  
+  if (!is.null(pomological_overlay) && file.exists(pomological_overlay)) {
+    pomo_over <- magick::image_read(pomological_overlay)
+    pomo_over <- magick::image_resize(pomo_over, glue::glue("{width}x{height}!"))
+    gg_fig <- magick::image_composite(gg_fig, pomo_over, "blend", compose_args = "15")
+  }
+  
+  # Paint background
+  pomo_bg <- magick::image_read(pomological_background)
+  pomo_bg <- magick::image_resize(pomo_bg, glue::glue("{width}x{height}!"))
+  pomo_bg <- magick::image_crop(pomo_bg, glue::glue("{width}x{height}"))
+  
+  # Paint figure onto background
+  pomo_img <- magick::image_composite(pomo_bg, gg_fig)
+  if (!is.null(outfile)) {
+    # Do you want your picture framed?
+    magick::image_write(pomo_img, outfile)
+  }
+  pomo_img
+}
+```
+
+
+## Demo!
+
+We'll need dplyr and ggplot2
+
+```{r libraries}
+library(dplyr)
+library(ggplot2)
+```
+
+### Basic iris plot
+
+```{r demo-plots}
+# Base plot
+basic_iris_plot <- ggplot(iris) +
+  aes(x = Sepal.Length, y = Sepal.Width, color = Species) +
+  geom_point(size = 2)
+
+# Just your standard Iris plot
+basic_iris_plot 
+
+# With pomological theme
+basic_iris_plot +
+  pomological_theme() +
+  scale_color_pomological()
+
+
+# With transparent background
+pomological_iris <- basic_iris_plot +
+  pomological_theme_nobg() +
+  scale_color_pomological()
+pomological_iris 
+
+# Painted!
+paint_pomological(pomological_iris, res = 110)
+```
+
+### Stacked bar chart
+
+
+```{r bar-chart}
+stacked_bar_plot <- ggplot(diamonds) +
+  aes(price, fill = cut) +
+  geom_histogram(binwidth = 850) + 
+  xlab('Price (USD)') + 
+  ylab('Count') + 
+  scale_x_continuous(label = scales::dollar_format()) +
+  scale_fill_pomological()
+
+stacked_bar_plot + pomological_theme()
+
+paint_pomological(
+  stacked_bar_plot + pomological_theme_nobg(),
+  res = 110
+)
+```
+
+### Density Plot
+
+```{r plot-density}
+density_plot <- mtcars %>% 
+  mutate(cyl = factor(cyl)) %>% 
+  ggplot() +
+  aes(mpg, fill = cyl, color = cyl)+
+  geom_density(alpha = 0.75) + 
+  labs(fill = 'Cylinders', colour = 'Cylinders', x = 'MPG', y = 'Density') +
+  scale_color_pomological() +
+  scale_fill_pomological()
+
+density_plot + pomological_theme()
+
+paint_pomological(
+  density_plot + pomological_theme_nobg(),
+  res = 110
+)
+```
+
+
+### Points and lines
+
+Data from the Texas Housing
+
+```{r plot-points-lines}
+big_volume_cities <- txhousing %>% 
+  group_by(city) %>% 
+  summarize(mean_volume = mean(volume, na.rm = TRUE)) %>% 
+  arrange(-mean_volume) %>% 
+  top_n(length(pomological_palette)) %>% 
+  pull(city)
+
+point_line_plot <- txhousing %>% 
+  filter(city %in% big_volume_cities) %>% 
+  group_by(city, year) %>% 
+  summarize(mean_volume = mean(volume, na.rm = TRUE)) %>% 
+  ungroup %>% 
+  mutate(city = factor(city, big_volume_cities)) %>% 
+  ggplot() +
+  aes(year, mean_volume, fill = city, group = city) +
+  geom_col(position = 'fill', width = 0.9) +
+  labs(x = 'City', y = 'Mean Volume', color = 'City') +
+  theme(panel.grid.minor.x = element_blank()) +
+  scale_fill_pomological()
+
+point_line_plot + pomological_theme()
+
+paint_pomological(
+  point_line_plot + pomological_theme_nobg(),
+  res = 110
+)
+```
+
+### One last plot
+
+(in my handwriting)
+
+```{r plot-ridges}
+ridges_pomological <- ggplot(diamonds) + 
+  aes(x = carat, y = clarity, color = clarity, fill = clarity) + 
+  ggridges::geom_density_ridges(alpha = 0.75) + 
+  pomological_theme_nobg(
+    base_family = 'gWriting',
+    base_theme = ggridges::theme_ridges()
+    ) + 
+  scale_fill_pomological() + 
+  scale_color_pomological()
+
+paint_pomological(ridges_pomological, res = 110)
+```
+
+
+
+## Appendix
+
+Some functions I wrote while exploring colors
+
+```{r appendix, eval=FALSE}
+# load all colors
+x <- readLines("~/Desktop/pomological.css")
+x <- stringr::str_extract(x, "#[0-9a-f]{6}")
+x <- x[!is.na(x)]
+
+gg_color_hue <- function(n) {
+  hues = seq(15, 375, length = n + 1)
+  hcl(h = hues, l = 65, c = 100)[1:n]
+}
+
+col2hsv <- function(x) rgb2hsv(col2rgb(x))
+
+
+dist2ref_color <- function(color, ref_color) {
+  stopifnot(length(ref_color) == 1)
+  x <- col2hsv(c(color, ref_color)) %>% 
+    t %>%
+    dist %>%
+    as.matrix %>%
+    {tibble('ref_color' = .[length(color) + 1, 1:length(color)])}
+  names(x) <- ref_color
+  x
+}
+
+compare_to_ggplot <- function(compare_to_ggplot) {
+  pomo_gg <- map_dfr(set_names(compare_to_ggplot), ~ as_tibble(t(col2hsv(.))), .id = "color") %>% 
+    bind_cols(
+      map_dfc(gg_color_hue(set_names(length(compare_to_ggplot))), ~ dist2ref_color(compare_to_ggplot, .))
+    ) %>% 
+    tidyr::gather('ggplot_color', 'dist', -color:-v) %>% 
+    # group_by(color) %>% 
+    # do(dist = min(.$dist), ggplot_color = filter(., dist == min(.$dist))$ggplot_color) %>% 
+    # mutate(dist = map_dbl(dist, ~ .), ggplot_color = map_chr(ggplot_color, ~ .)) %>% 
+    # ungroup %>% 
+    mutate(ggplot_color = factor(ggplot_color, gg_color_hue(length(compare_to_ggplot)))) %>% 
+    arrange(ggplot_color)
+  warning(glue::glue("Palette has {length(compare_to_ggplot)} colors"), call. = FALSE)
+  ggplot(pomo_gg) +
+    aes(x = ggplot_color, y = dist, fill = color, label = color) +
+    geom_label(color = 'white')+
+    # geom_point(shape = 15, size = 5) +
+    scale_fill_identity()
+}
+
+data_frame(
+  'color' = color_options,
+  # 'group' = sample(c('pomo', 'logical'), length(color_options), replace = TRUE),
+  'x' = pmap_chr(tidyr::crossing(letters, letters), ~paste0(..1, ..2))[1:length(color_options)],
+  'y' = 1:length(color_options)
+) %>% 
+  ggplot() +
+  aes(x, y, fill = color) +
+  # geom_point(size = 8)+
+  geom_col()+
+  geom_text(aes(label = color), hjust = -0.1) +
+  scale_fill_identity() +
+  coord_flip() +
+  theme_minimal() +
+  #theme_xkcd() +
+  theme(
+    text = element_text(family = 'gWriting', size = 16),
+    plot.background = element_rect(fill = base_colors["paper_light"], color = NA),
+    panel.grid = element_line(color = "#efe1c6"),
+    axis.text = element_text(color = "#655843", size = 14)
+  )
+
+ordered_plot <- function(color_options, dichromat = FALSE) {
+  if (dichromat) {
+    dichr_type <- sample(c("deutan", "protan", "tritan"), 1)
+    message(glue::glue("color blindness: {dichr_type}"))
+    color_options <- dichromat::dichromat(color_options, dichr_type)
+  }
+  data_frame(
+    color = color_options,
+    x = 1,
+    y = 1:length(color_options)
+  ) %>% 
+    ggplot() +
+    aes(x, y, fill = color, label = color) +
+    geom_tile() +
+    geom_label(color = 'white') +
+    scale_fill_identity()+
+    scale_y_continuous(breaks = 1:length(color_options), labels = 1:length(color_options))+
+    theme_minimal()
+}
+```

pomological.Rproj

+Version: 1.0
+
+RestoreWorkspace: Default
+SaveWorkspace: Default
+AlwaysSaveHistory: Default
+
+EnableCodeIndexing: Yes
+UseSpacesForTab: Yes
+NumSpacesForTab: 2
+Encoding: UTF-8
+
+RnwWeave: Sweave
+LaTeX: pdfLaTeX

pomological.css

+pomo-2b323f {
+  color: #2b323f;
+}
+pomo-e68c7c {
+  color: #e68c7c;
+}
+pomo-eb8c5f {
+  color: #eb8c5f;
+}
+pomo-df415a {
+  color: #df415a;
+}
+pomo-f52300 {
+  color: #f52300;
+}
+pomo-ec4339 {
+  color: #ec4339;
+}
+pomo-a81816 {
+  color: #a81816;
+}
+pomo-912b1b {
+  color: #912b1b;
+}
+pomo-c03728 {
+  color: #c03728;
+}
+pomo-f2692e {
+  color: #f2692e;
+}
+pomo-fd8f24 {
+  color: #fd8f24;
+}
+pomo-f5c04a {
+  color: #f5c04a;
+}
+pomo-fdd562 {
+  color: #fdd562;
+}
+pomo-cfbc56 {
+  color: #cfbc56;
+}
+pomo-c2c377 {
+  color: #c2c377;
+}
+pomo-89a954 {
+  color: #89a954;
+}
+pomo-919c4c {
+  color: #919c4c;
+}
+pomo-79874a {
+  color: #79874a;
+}
+pomo-586939 {
+  color: #586939;
+}
+pomo-3c5e27 {
+  color: #3c5e27;
+}
+pomo-2b5000 {
+  color: #2b5000;
+}
+pomo-302c28 {
+  color: #302c28;
+}
+pomo-252a34 {
+  color: #252a34;
+}
+pomo-2f333d {
+  color: #2f333d;
+}
+pomo-3a3e3f {
+  color: #3a3e3f;
+}
+pomo-4f5157 {
+  color: #4f5157;
+}
+pomo-828585 {
+  color: #828585;
+}
+pomo-633027 {
+  color: #633027;
+}
+pomo-6b452b {
+  color: #6b452b;
+}
+pomo-6f5438 {
+  color: #6f5438;
+}
+pomo-918257 {
+  color: #918257;
+}
+pomo-938e53 {
+  color: #938e53;
+}
+pomo-fde09f {
+  color: #fde09f;
+}
+pomo-dfbc97 {
+  color: #dfbc97;
+}
+pomo-eedcb6 {
+  color: #eedcb6;
+}
+pomo-efe1c6 {
+  color: #efe1c6;
+}
+pomo-f8eed1 {
+  color: #f8eed1;
+}
+pomo-fef4d8 {
+  color: #fef4d8;
+}
+pomo-fff6da {
+  color: #fff6da;
+}
+pomo-fffeea {
+  color: #fffeea;
+}
+pomo-a59889 {
+  color: #a59889;
+}
+pomo-655843 {
+  color: #655843;
+}
+pomo-aea795 {
+  color: #aea795;
+}
+pomo-a89985 {
+  color: #a89985;
+}