The strategy to draw a court is to define the different lines and use ggplot2::geom_path to draw each segment. For circles, we use the following function to create the x-y coordinates.
draw_circle <- function(center = c(0, 0),
diameter = 1,
npoints = 12000,
start = 0,
end = 2){
tt <- seq(start*pi, end*pi, length.out = npoints)
data.table::data.table(
x = center[1] + diameter / 2 * cos(tt),
y = center[2] + diameter / 2 * sin(tt)
)
}Now, we can define each line:
generador_lineas <- function(){
lineas <- list()
lineas$linea_exterior <-
data.table::data.table(x = c(-20, 20, 20, -20, -20),
y = c(-10, -10, 10, 10, -10))
lineas$linea_media <-
data.table::data.table(x = c(0, 0),
y = c(-10, 10))
lineas$marco1 <-
data.table::data.table(x = c(-20, -20),
y = c(-1.5, 1.5))
lineas$marco2 <-
data.table::data.table(x = c(20, 20),
y = c(-1.5, 1.5))
lineas$linea_6_1 <-
data.table::data.table(x = c(-14, -14),
y = c(-1.5, 1.5))
lineas$linea_6_2 <-
data.table::data.table(x = c(14, 14),
y = c(-1.5, 1.5))
lineas$linea_6_1 <-
data.table::data.table(x = c(-14, -14),
y = c(-1.5, 1.5))
lineas$linea_6_2 <-
data.table::data.table(x = c(14, 14),
y = c(-1.5, 1.5))
lineas$circulo_6_1_1 <-
draw_circle(center = c(-20, -1.5),
diameter = 12,
start = 1.5, end = 2)
lineas$circulo_6_1_2 <-
draw_circle(center = c(-20, 1.5),
diameter = 12,
start = 0, end = 0.5)
lineas$circulo_6_2_1 <-
draw_circle(center = c(20, -1.5),
diameter = 12,
start = 1, end = 1.5)
lineas$circulo_6_2_2 <-
draw_circle(center = c(20, 1.5),
diameter = 12,
start = 0.5, end = 1)
lineas$linea_9_1 <-
data.table::data.table(x = c(-11, -11),
y = c(-1.5, 1.5))
lineas$linea_9_2 <-
data.table::data.table(x = c(11, 11),
y = c(-1.5, 1.5))
lineas$circulo_9_1_1 <-
draw_circle(center = c(-20, -1.5),
diameter = 18,
start = 1.62, end = 2)
lineas$circulo_9_1_2 <-
draw_circle(center = c(-20, 1.5),
diameter = 18,
start = 0, end = 0.38)
lineas$circulo_9_2_1 <-
draw_circle(center = c(20, -1.5),
diameter = 18,
start = 1, end = 1.38)
lineas$circulo_9_2_2 <-
draw_circle(center = c(20, 1.5),
diameter = 18,
start = 0.62, end = 1)
lineas$linea_portero_1 <-
data.table::data.table(x = c(-16, -16),
y = c(-0.075, 0.075))
lineas$linea_portero_2 <-
data.table::data.table(x = c(16, 16),
y = c(-0.075, 0.075))
lineas$linea_penal_1 <-
data.table::data.table(x = c(-13, -13),
y = c(-0.5, 0.5))
lineas$linea_penal_2 <-
data.table::data.table(x = c(13, 13),
y = c(-0.5, 0.5))
lineas$sustitucion_1 <-
data.table::data.table(x = c(-4.5, -4.5),
y = c(-10.15, -9.85))
lineas$sustitucion_2 <-
data.table::data.table(x = c(4.5, 4.5),
y = c(-10.15, -9.85))
lineas$linea_exterior_media_cancha <-
data.table::data.table(x = c(5, 20, 20, 5, 5),
y = c(-10, -10, 10, 10, -10))
return(lineas)
}We are ready to pass these lines to a ggplot for a complete court:
campo <- function(vertical = FALSE, flip = FALSE, plotly = FALSE){
lineas <- generador_lineas()
make_flip <- NULL
if(flip) make_flip <- '-'
type_of_plot <-
data.table::fifelse(vertical,
paste0('ggplot2::aes(y, ', make_flip, 'x)'),
paste0('ggplot2::aes(', make_flip, 'x, ', 'y)'))
plot <- ggplot2::ggplot(mapping = eval(parse(text = type_of_plot))) +
ggplot2::geom_path(data = lineas$linea_exterior, size = 1) +
ggplot2::geom_path(data = lineas$linea_media, size = 1) +
ggplot2::geom_path(data = lineas$marco1, color = 'red', size = 1.5) +
ggplot2::geom_path(data = lineas$marco2, color = 'red', size = 1.5) +
ggplot2::geom_path(data = lineas$linea_6_1, size = 1) +
ggplot2::geom_path(data = lineas$linea_6_2, size = 1) +
ggplot2::geom_path(data = lineas$circulo_6_1_1, size = 1) +
ggplot2::geom_path(data = lineas$circulo_6_1_2, size = 1) +
ggplot2::geom_path(data = lineas$circulo_6_2_1, size = 1) +
ggplot2::geom_path(data = lineas$circulo_6_2_2, size = 1) +
ggplot2::geom_path(data = lineas$linea_9_1, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$linea_9_2, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$circulo_9_1_1, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$circulo_9_1_2, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$circulo_9_2_1, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$circulo_9_2_2, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$linea_portero_1, size = 1) +
ggplot2::geom_path(data = lineas$linea_portero_2, size = 1) +
ggplot2::geom_path(data = lineas$linea_penal_1, size = 1) +
ggplot2::geom_path(data = lineas$linea_penal_2, size = 1) +
ggplot2::geom_path(data = lineas$sustitucion_1, size = 1) +
ggplot2::geom_path(data = lineas$sustitucion_2, size = 1) +
ggplot2::coord_fixed() + # We want to maintain the 40x20 proportion
ggplot2::theme_void()
if(plotly) plot <- plotly::ggplotly(plot)
return(plot)
}And half a court:
medio_campo <- function(vertical = TRUE, flip = FALSE, plotly = FALSE){
lineas <- generador_lineas()
make_flip <- NULL
if(flip) make_flip <- '-'
type_of_plot <-
data.table::fifelse(vertical,
paste0('ggplot2::aes(y, ', make_flip, 'x)'),
paste0('ggplot2::aes(', make_flip, 'x, ', 'y)'))
plot <- ggplot2::ggplot(mapping = eval(parse(text = type_of_plot))) +
ggplot2::geom_path(data = lineas$linea_exterior_media_cancha, size = 1) +
ggplot2::geom_path(data = lineas$marco2, color = 'red', size = 1.5) +
ggplot2::geom_path(data = lineas$linea_6_2, size = 1) +
ggplot2::geom_path(data = lineas$circulo_6_2_1, size = 1) +
ggplot2::geom_path(data = lineas$circulo_6_2_2, size = 1) +
ggplot2::geom_path(data = lineas$linea_9_2, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$circulo_9_2_1, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$circulo_9_2_2, linetype = 'dashed', size = 1) +
ggplot2::geom_path(data = lineas$linea_portero_2, size = 1) +
ggplot2::geom_path(data = lineas$linea_penal_2, size = 1) +
ggplot2::coord_fixed() +
ggplot2::theme_void()
if(plotly) plot <- plotly::ggplotly(plot)
return(plot)
}campo()
medio_campo(vertical = TRUE, flip = FALSE, plotly = TRUE)