Web: Use simple 'linear' interpolation in line charts
...instead of (default) 'cardinal' which may cause weird loops.
Thanks to Jan Kurs for suggestion.
--- a/web/app/assets/javascripts/line_charts.js Sat May 09 17:26:57 2015 +0100
+++ b/web/app/assets/javascripts/line_charts.js Sat May 09 17:29:16 2015 +0100
@@ -5,6 +5,7 @@
var graph = new Rickshaw.Graph.Ajax({
element: $(element).find(".chart")[0],
renderer: 'line',
+ interpolation: 'linear',
dataURL: $(element).data("json-url"),
onData: function(series) {
var i;