halved line hit area and only use hit areas with "small" datasets
halved line hit area and only use hit areas with "small" datasets

mayblue9/d3plus,DeemaJS/d3plus,alexandersimoes/d3plus,romind/d3plus,Jay-Oh-eN/d3plus,kizzyterra14/d3plus,romind/d3plus_sandbox,bryanph/d3plus,lucasmachadorj/d3plus,mssyogi/d3plus,CodeCutterUK/d3plus