# LineChart _The Line Chart element visualizes data series as connected line graphs. It plots points on a coordinate system and connects them with lines._ Extends: `Graph` ## Usage ```lua local chart = main:addLineChart() ``` ```lua :addSeries("input", " ", colors.green, colors.green, 10) ``` ```lua :addSeries("output", " ", colors.red, colors.red, 10) ``` ```lua ``` ```lua basalt.schedule(function() ``` ```lua while true do ``` ```lua chart:addPoint("input", math.random(1,100)) ``` ```lua chart:addPoint("output", math.random(1,100)) ``` ```lua sleep(2) ``` ```lua end ``` ```lua end) ```