Figures 7.2 and 7.3 Goings on in the space-time aquarium

figures

code

Code

library(dplyr)
library(plotly)
library(plot3D)

Code

time_space_data <- read.csv("tg-day-in-the-life.csv")

locations_0 <- unique(select(time_space_data, x, y)) %>%
  mutate(id = 1:5, t = 0)
locations_24 <- locations_0 %>%
  mutate(t = 24)

lines3D(time_space_data$x, time_space_data$y, time_space_data$t, 
        xlim = c(min(time_space_data$x) - 2, 
                 max(time_space_data$x) + 2),
        ylim = c(min(time_space_data$y) - 2, 
                 max(time_space_data$y) + 2),
        xlab = "x", ylab = "y", zlab = "Time, t",
        col = "#00000080", lwd = 2, alpha = 0.5, 
        phi = 25, theta = 60, bty = "g", scale = FALSE)

points3D(locations_0$x, locations_0$y, locations_0$t, 
         add = TRUE, col = "black")

arrows3D(locations_0$x, locations_0$y, locations_0$t, 
         locations_24$x, locations_24$y, locations_24$t, 
         add = TRUE, lty = "dashed", lwd = 0.5, col = "black")

Code

time_space_data <- read.csv("tg-meeting.csv")

trace <- time_space_data %>% 
  filter(id == 1)

lines3D(trace$x, trace$y, trace$t, 
        xlim = c(-6, 6), ylim = c(-6, 6),
        xlab = "x", ylab = "y", zlab = "Time, t",
        col = "black", lwd = .5, phi = 25, theta = 60, 
        bty = "g", scale = FALSE)

for (i in 2:8) {
  trace <- time_space_data %>% filter(id == i)
  lines3D(trace$x, trace$y, trace$t, add = TRUE,
          xlim = c(-6, 6), ylim = c(-6, 6),
          col = "black", lwd = .5)
}

Code

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