Submarine Cable Map Dataviz
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
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)) | |
} |
Hi,
I was wondering if anyone still had access to a repo of the Telegeography submarine cable map. They no longer maintain their public github as of 2 weeks ago, and I wanted to look at their source code. Thank you!
I was looking for it as well, I think you get it from the attachments here,
https://observablehq.com/@ariellemartinez/submarine-cable-map
Good Luck!
I have consolidated and modified a little there :
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
The SFU link for the JPG doesn't work, here's the wikimedia source file.
https://upload.wikimedia.org/wikipedia/commons/c/c3/Solarsystemscope_texture_2k_earth_daymap.jpg