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1 line
2.5 KiB
JavaScript
1 line
2.5 KiB
JavaScript
var Genome=Backbone.Model.extend({defaults:{name:null,key:null,chroms_info:null},get_chroms_info:function(){return this.attributes.chroms_info.chrom_info}});var HistogramDataset=Backbone.Model.extend({initialize:function(a){this.attributes.data=a;this.attributes.max=_.max(a,function(b){if(!b||typeof b==="string"){return 0}return b[1]})[1]}});var CircosHistogramDatasetLayout=Backbone.Model.extend({chroms_layout:function(){var b=this.attributes.genome.get_chroms_info(),d=d3.layout.pie().value(function(f){return f.len}).sort(null),e=d(b),a=this.attributes.total_gap/b.length,c=_.map(e,function(h,g){var f=h.endAngle-a;h.endAngle=(f>h.startAngle?f:h.startAngle);return h});return c},chrom_data_layout:function(j,b,g,f,h){if(!b||typeof b==="string"){return null}var d=b[0],i=b[3],c=d3.scale.linear().domain([0,h]).range([g,f]),e=d3.layout.pie().value(function(k){return i}).startAngle(j.startAngle).endAngle(j.endAngle),a=e(d);_.each(d,function(k,l){a[l].outerRadius=c(k[1])});return a}});var CircosView=Backbone.View.extend({className:"circos",initialize:function(a){this.width=a.width;this.height=a.height;this.total_gap=a.total_gap;this.genome=a.genome;this.dataset=a.dataset;this.radius_start=a.radius_start;this.dataset_arc_height=a.dataset_arc_height},render:function(){var d=this.radius_start,e=this.dataset_arc_height,j=new CircosHistogramDatasetLayout({genome:this.genome,total_gap:this.total_gap}),i=j.chroms_layout(),g=_.zip(i,this.dataset.attributes.data),h=this.dataset.attributes.max,b=_.map(g,function(m){var n=m[0],l=m[1];return j.chrom_data_layout(n,l,d,d+e,h)});var c=d3.select(this.$el[0]).append("svg").attr("width",this.width).attr("height",this.height).append("g").attr("transform","translate("+this.width/2+","+this.height/2+")");var k=c.append("g").attr("id","inner-arc"),f=d3.svg.arc().innerRadius(d).outerRadius(d+e),a=k.selectAll("#inner-arc>path").data(i).enter().append("path").attr("d",f).style("stroke","#ccc").style("fill","#ccc").append("title").text(function(l){return l.data.chrom});_.each(b,function(l){if(!l){return}var o=c.append("g"),n=d3.svg.arc().innerRadius(d),m=o.selectAll("path").data(l).enter().append("path").attr("d",n).style("stroke","red").style("fill","red")})}});var TrackBrowserRouter=Backbone.Router.extend({initialize:function(b){this.view=b.view;this.route(/([\w]+)$/,"change_location");this.route(/([\w]+\:[\d,]+-[\d,]+)$/,"change_location");var a=this;a.view.on("navigate",function(c){a.navigate(c)})},change_location:function(a){this.view.go_to(a)}}); |