third_party/flot/jquery.flot.threshold.min.js

   1 /* Flot plugin for thresholding data.
   2
   3 Copyright (c) 2007-2013 IOLA and Ole Laursen.
   4 Licensed under the MIT license.
   5
   6 The plugin supports these options:
   7
   8         series: {
   9                 threshold: {
  10                         below: number
  11                         color: colorspec
  12                 }
  13         }
  14
  15 It can also be applied to a single series, like this:
  16
  17         $.plot( $("#placeholder"), [{
  18                 data: [ ... ],
  19                 threshold: { ... }
  20         }])
  21
  22 An array can be passed for multiple thresholding, like this:
  23
  24         threshold: [{
  25                 below: number1
  26                 color: color1
  27         },{
  28                 below: number2
  29                 color: color2
  30         }]
  31
  32 These multiple threshold objects can be passed in any order since they are
  33 sorted by the processing function.
  34
  35 The data points below "below" are drawn with the specified color. This makes
  36 it easy to mark points below 0, e.g. for budget data.
  37
  38 Internally, the plugin works by splitting the data into two series, above and
  39 below the threshold. The extra series below the threshold will have its label
  40 cleared and the special "originSeries" attribute set to the original series.
  41 You may need to check for this in hover events.
  42
  43 */(function(e){function n(t){function n(t,n,r,i,s){var o=r.pointsize,u,a,f,l,c,h=e.extend({},n);h.datapoints={points:[],pointsize:o,format:r.format},h.label=null,h.color=s,h.threshold=null,h.originSeries=n,h.data=[];var p=r.points,d=n.lines.show,v=[],m=[],g;for(u=0;u<p.length;u+=o){a=p[u],f=p[u+1],c=l,f<i?l=v:l=m;if(d&&c!=l&&a!=null&&u>0&&p[u-o]!=null){var y=a+(i-f)*(a-p[u-o])/(f-p[u-o+1]);c.push(y),c.push(i);for(g=2;g<o;++g)c.push(p[u+g]);l.push(null),l.push(null);for(g=2;g<o;++g)l.push(p[u+g]);l.push(y),l.push(i);for(g=2;g<o;++g)l.push(p[u+g])}l.push(a),l.push(f);for(g=2;g<o;++g)l.push(p[u+g])}r.points=m,h.datapoints.points=v;if(h.datapoints.points.length>0){var b=e.inArray(n,t.getData());t.getData().splice(b+1,0,h)}}function r(t,r,i){if(!r.threshold)return;r.threshold instanceof Array?(r.threshold.sort(function(e,t){return e.below-t.below}),e(r.threshold).each(function(e,o){n(t,r,i,o.below,o.color)})):n(t,r,i,r.threshold.below,r.threshold.color)}t.hooks.processDatapoints.push(r)}var t={series:{threshold:null}};e.plot.plugins.push({init:n,options:t,name:"threshold",version:"1.2"})})(jQuery);