MonkeyGG2
138 lines
4.1 KiB
JavaScript
138 lines
4.1 KiB
JavaScript
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function draw_hist(ident, vals) {
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// A formatter for counts.
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var formatCount = d3.format(",0d");
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var margin = {top: 10, right: 30, bottom: 30, left: 30},
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width = 400 - margin.left - margin.right,
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height = 200 - margin.top - margin.bottom;
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var x = d3.scale.linear()
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.domain([-5, 5])
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.range([0, width]);
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// Generate a histogram using twenty uniformly-spaced bins.
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var data = d3.layout.histogram()
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.bins(x.ticks(20))
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(vals);
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var y = d3.scale.linear()
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.domain([0, d3.max(data, function(d) { return d.y + Math.sqrt(d.y); })])
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.range([height, 0]);
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correction = y(0);
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var xAxis = d3.svg.axis()
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.scale(x)
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.ticks(3)
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.tickFormat(function(d) { return '';})
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.orient("bottom");
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var yAxis = d3.svg.axis()
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.scale(y)
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.ticks(4)
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//.tickFormat(function(d) { return ''; })
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.orient("left");
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var svg = d3.select(ident).append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
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var bar = svg.selectAll(".bar")
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.data(data)
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.enter().append("svg:circle")
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.attr("stroke", "black")
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.attr("fill", function(d, i) { return "black" })
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.attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; })
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.attr("r", function(d, i) { return 1 });
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svg.selectAll(".bar")
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.data(data)
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.enter().append("svg:line")
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.attr("x1", 0)
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.attr("x2", 0)
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.attr("y1", function(d) { return y(Math.sqrt(d.y))-correction; })
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.attr("y2", function(d) { return -y(Math.sqrt(d.y))+correction; })
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.attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; })
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.attr("stroke", "black")
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.attr("stroke-width", 1)
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svg.selectAll(".bar")
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.data(data)
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.enter().append("svg:line")
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.attr("x1", -2)
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.attr("x2", 2)
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.attr("y1", function(d) { return y(Math.sqrt(d.y))-correction; })
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.attr("y2", function(d) { return y(Math.sqrt(d.y))-correction; })
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.attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; })
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.attr("stroke", "black")
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.attr("stroke-width", 1)
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svg.selectAll(".bar")
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.data(data)
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.enter().append("svg:line")
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.attr("x1", -2)
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.attr("x2", 2)
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.attr("y1", function(d) { return -y(Math.sqrt(d.y))+correction; })
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.attr("y2", function(d) { return -y(Math.sqrt(d.y))+correction; })
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.attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; })
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.attr("stroke", "black")
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.attr("stroke-width", 1)
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bar.append("rect")
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.attr("x", 1)
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.attr("width", x(data[0].dx))
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.attr("height", function(d) { return height - y(d.y); });
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svg.append("g")
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.attr("class", "x axis")
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.attr("transform", "translate(0," + (height ) + ")")
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.call(xAxis);
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svg.append("text")
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.attr("class", "x label")
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.attr("text-anchor", "end")
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.attr("x", width)
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.attr("y", height + 20)
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.text("m (GeV)");
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svg.append("g")
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.attr("class", "y axis")
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.attr("transform", "translate(0, 0)")
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.call(yAxis);
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svg.append("text")
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.attr("class", "y label")
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.attr("text-anchor", "end")
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.attr("y", -20)
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.attr("dy", "-1em")
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.attr("dx", "-0.5em")
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.attr("transform", "rotate(-90)")
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.text("events");
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return svg;
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}
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function Histogram(ident) {
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// TODO: Allow for arbitrary numbers of events
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this.values = [];
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draw_hist(ident, []);
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this.add_events = function(num) {
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var new_vals = d3.range(num).map(d3.random.normal(0, 1));
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this.values = $.merge(this.values, new_vals);
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d3.select(ident).select("svg").remove();
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draw_hist(ident, this.values);
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}
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this.clear = function() {
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d3.select(ident).select("svg").remove();
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this.values = [];
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draw_hist(ident, []);
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}
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}
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