Optimize join.
Optimize join.

Since we automatically mark line ends as junctions, it’s not possible for a
neighbor to be null and thus we can use equalPoint to compare.

maxogden/topojson,tsl3su/WorldMap_Choropleth,studiowangfei/topojson,lyhpcha/topojson,koshlan/topojson,hcxiong/topojson,youprofit/topojson,mbostock/topojson,whoinlee/topojson,btahir/topojson,AlpinHologramm/topojson,ongerit/topojson,ststeiger/topojson