style body min height 300px style script type text javascript src https d3js org d3 v7 min js script script var data p x 100 y 100 x 200 y 100 w 2 c red p x 100 y 100 x 150 y 200 w 3 c blue p x 150 y 200 x 200 y 100 w 1 c green Line generator var line d3 line x function d return d x y function d return d y d3 select body append svg attr width 400 attr height 400 selectAll path data data enter append path attr d function d return line d p attr stroke width function d return d w attr stroke function d return d c script
e x function d return d x y function d return d y d3 select body append svg attr width 400 attr height 400 selectAll path data data enter append path attr d function d return line d p attr stroke width function d return d w attr stroke function d return d c script