linechart - How to set global/specific properies when updating line-chart using Chart.js? -


this situation http://jsfiddle.net/co3l0bdb/4/

thanks @potatopeelings able set property highlightfill datasets , works when show/hide series in graph. added: 

currentchart.datasets[0].points[8].highlightstroke = "rgba(220,0,0,1)"; currentchart.datasets[1].points[8].highlightstroke = "rgba(0,255,0,1)"; currentchart.datasets[2].points[8].highlightstroke = "rgba(0,0,255,1)";

but get, but not want, when hide series, after 2 iteration starts plot hidden data , stops remove firsts data of series. how can set series-spefic properties, such highlightstroke, without described side effect?

instead of setting dataset property empty object, don't include in dataset @ all. so

data = {     labels: chartlabel,     datasets: [sp, nc, spa] };

becomes

data = {     labels: chartlabel,     datasets: [] };  if (sp.label !== undefined) data.datasets.push(sp) if (nc.label !== undefined) data.datasets.push(nc) if (spa.label !== undefined) data.datasets.push(spa)

in 2 places

replace data insertion, point attribute setting loop (instead of hardcoding 3 datasets). so

setinterval(function() {     currentchart.adddata([randomscalingfactor(), randomscalingfactor(), randomscalingfactor()], ++latestlabel); currentchart.datasets[0].points[8].highlightstroke = "rgba(220,0,0,1)"; currentchart.datasets[1].points[8].highlightstroke = "rgba(0,255,0,1)"; currentchart.datasets[2].points[8].highlightstroke = "rgba(0,0,255,1)";

becomes

var d = [] currentchart.datasets.foreach(function(e) {     d.push(randomscalingfactor()) }) currentchart.adddata(d, ++latestlabel); currentchart.datasets.foreach(function(dataset) {     dataset.points[8].highlightstroke = dataset.points[0].highlightstroke; })

the highlightstroke new point copied highlightstroke first point of same series.

fiddle - http://jsfiddle.net/zs99pw4l/


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