ukTradeMap = {
let f = d3.scaleLinear([0,d3.max(ukTopTrade,d=>d.value)],[0.3,1]);
let s = d3.scaleLinear([0,d3.max(ukTopTrade,d=>d.value)],[0.02,0.1]);
let w = d3.scaleLinear([0,d3.max(ukTopTrade,d=>d.value)],[2,6]);
let color = d3.scaleOrdinal(ukTopTrade.map(d=>d.type), d3.schemeDark2);
return connectionMap(ukTopTrade, {
name:'map2',
weight:d=>w(d.value),
frequency:d=>f(d.value),
speed:d=>s(d.value),
linkColor:d=>color(d.type),
...connectionOptions2,
...mapOptions2
}).svg.node();
}