Submarine Cable Map Dataviz
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library(geojsonsf) | |
library(sf) | |
library(rayrender) | |
#Data source: https://github.com/telegeography/www.submarinecablemap.com | |
cables = geojson_sf("cable-geo.json") | |
cablescene = list() | |
counter = 1 | |
for(i in 1:length(cables$geometry)) { | |
for(j in 1:length(cables$geometry[[i]])) { | |
temp = cables$geometry[[i]][[j]] | |
cableval = data.frame(x=sinpi(temp[,1]/180)*cospi(temp[,2]/180), | |
y=sinpi(temp[,2]/180), | |
z=cospi(temp[,1]/180)*cospi(temp[,2]/180)) | |
#Don't lower start of line at the 180/0 longitude border | |
if(abs(temp[1,1] - 180) > 0.001 && abs(temp[1,1] + 180) > 0.001) { | |
cableval[1,] = cableval[1,] * 1/1.02 | |
} | |
nr = nrow(temp) | |
#Don't lower end of line at the 180/0 longitude border | |
if(abs(temp[nr,1] - 180) > 0.001 && abs(temp[nr,1] + 180) > 0.001) { | |
nr = nrow(cableval) | |
cableval[nr,] = cableval[nr,] * 1/1.02 | |
} | |
cablescene[[counter]] = path(cableval, width = 0.005,material=diffuse(color=cables$color[i])) | |
counter = counter + 1 | |
} | |
} | |
fullcablescene = do.call(rbind,cablescene) | |
for(i in seq(1,720,by=1)) { | |
group_objects(fullcablescene,scale=c(1,1,1)*1.02) %>% | |
add_object(sphere(radius=0.99,material=diffuse(image_texture = "2k_earth_daymap.jpg"),angle=c(0,-90,0))) %>% | |
group_objects(angle=c(0,-i/2,0)) %>% | |
add_object(sphere(y=5,z=5,x=5,material=light(intensity = 80,color="lightblue"))) %>% | |
add_object(sphere(y=5,z=5,x=-5,material=light(intensity = 10,color="orange"))) %>% | |
add_object(sphere(y=-10,material=light(intensity = 3,color="white"))) %>% | |
render_scene(samples=64,width=1200,height=1200,fov=0,aperture=0, ortho_dimensions = c(2.3,2.3), | |
sample_method = "sobol_blue",filename=sprintf("smallcables%d.png",i)) | |
} |
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I have consolidated and modified a little there :
https://github.com/bunam/submarine_cable_map