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      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);