| 提交 | 用户 | 时间 | ||
| 58d006 | 1 | /* Flot plugin for thresholding data. |
| A | 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); | |
