Topojson - Arcs for Singapore and Hong Kong

Question

I noticed world-110m.json and world-110m2.json at https://github.com/mbostock/topojson/tree/master/examples didn't have the paths for Singapore and Hong Kong. I looked in the Natural Earth data set that generates the world-110m.json file, and noticed that Singapore was listed in the tiny_countries file, but only as a point, not as a polygon. The normal countries file does not appear to include Singapore. However, notice on http://techslides.com/d3-world-maps-tooltips-zooming-and-queue/ that Singapore is not a point, but a path.

I notice that the above link has paths for Singapore and Hong Kong. However, I'm having some problems using the files from that page because of some complicated code and would prefer to insert the arcs manually.

Thanks!

Answer 1

ok, found a solution to this 💡

1) get this specific admin-0 countries shapefile zip from natural earth Admin - 0 Countries | Download countries https://www.naturalearthdata.com/downloads/10m-cultural-vectors/

2) upload that 5mb ne_10m_admin_0_countries.zip shapefile zip you downloaded from Natural Earth to https://mapshaper.org/

use the mouse to drag and the scroll wheel or the plus button to zoom and notice that both Hong Kong and Singapore exist as shapes/polygons in this shapefile:

Hong Kong

Singapore

3) in mapshaper, click simplify and then check prevent shape removal in the simplification menu that pops up

4) simplify your geography and then export it to topojson. 1% simplified is close to the ~500k filesize of the original world-110m2.json file (edited) the resulting "whole worth with shapes preserved for tiny countries" topojson files that I came up with are shared in this github reposititory https://github.com/micahstubbs/tiny-countries-geo/tree/master/out