#' make_route_plot
#'
#' plot all routes, including counts, buffer, and outliers
#' @export
make_route_plot <- function(alpha){
buff_routes <- read.csv(paste0("inst/output/", alpha, "/count_buff.csv"))
raw_routes <- read.csv(paste0("inst/output/", alpha, "/raw_counts.csv"))
used_routes <- read.csv(paste0("inst/output/", alpha, "/no_outlier_counts.csv"))
usa <- map_data("state")
canada <- map_data("worldHires", "Canada")
mexico <- map_data("worldHires", "Mexico")
spp_buff2 <- dplyr::distinct(buff_routes, routeID, .keep_all = TRUE)
spp_rts <- dplyr::distinct(used_routes, routeID, .keep_all = TRUE)
spp_out <- dplyr::anti_join(raw_routes, used_routes)
spp_out <- dplyr::distinct(spp_out, routeID, .keep_all = TRUE)
xmin <- min(min(spp_buff2$Longitude), min(spp_out$Longitude)) - 4
xmax <- max(max(spp_buff2$Longitude), max(spp_out$Longitude)) + 4
ymin <- min(min(spp_buff2$Latitude), min(spp_out$Latitude)) - 4
ymax <- max(max(spp_buff2$Latitude), max(spp_out$Latitude)) + 4
if(nrow(spp_out) == 1){
summ <- paste(nrow(spp_rts), " routes (", nrow(spp_out), " outlier)", sep = "")
}else{
summ <- paste(nrow(spp_rts), " routes (", nrow(spp_out), " outliers)", sep = "")
}
p <- ggplot() + theme_minimal() + theme(panel.background = element_rect(fill = "#CDD2D4", color = NA), axis.title = element_blank())
p <- p + coord_map(projection = "lambert", lat0 = 25, lat1 = 50, xlim = c(xmin, xmax), ylim = c(ymin, ymax))
p <- p + geom_polygon(data = usa, aes(x=long, y = lat, group = group), fill = "#F0F0F1", color="#909090") +
geom_polygon(data = canada, aes(x=long, y = lat, group = group), fill = "#F0F0F1", color="#909090") +
geom_polygon(data = mexico, aes(x=long, y = lat, group = group), fill = "#F0F0F1", color="#909090")
p <- p + geom_point(data = spp_buff2, aes(x = Longitude, y = Latitude), size = 0.75, color = "#777777", alpha = 0.9)
p <- p + geom_point(data = spp_rts, aes(x = Longitude, y = Latitude), size = 1.4, color = "#dc322f")
p <- p + geom_point(data = spp_out, aes(x = Longitude, y = Latitude), size = 5, shape = 21, color = "#778899")
p <- p + geom_point(data = spp_out, aes(x = Longitude, y = Latitude), size = 1.4, color = "#dc322f")
p <- p + scale_x_continuous(breaks = seq(from = 10*(xmin%/%10 + as.logical(xmin%%10)),
to = 10*(xmax%/%10 + as.logical(xmax%%10)), by = 10))
p <- p + scale_y_continuous(breaks = seq(from = 5*(ymin%/%5 + as.logical(ymin%%5)),
to = 5*(ymax%/%5 + as.logical(ymax%%5)), by = 10))
# p <- p + annotate("text", x = -71,
# y = 5*(ymin%/%5 + as.logical(ymin%%5)) + 5, label = summ, size = 6, color = "#494949")
#
to.pdf(print(p), filename = paste0("inst/output/", alpha, "/route_map.pdf"), width = 10, height = 6)
}
#' to.pdf
#'
#' function to save figures as pdf objects
to.pdf <- function(expr, filename, ..., verbose=TRUE) {
if ( verbose )
cat(sprintf("Creating %s\n", filename))
pdf(filename, ...)
on.exit(dev.off())
eval.parent(substitute(expr))
}
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