1 files changed, 129 insertions, 0 deletions
diff --git a/app/static/js/makeChart.js b/app/static/js/makeChart.js
new file mode 100644
index 0000000..35069b6
--- /dev/null
+++ b/app/static/js/makeChart.js
@@ -0,0 +1,129 @@
+function makeChart(data) {
+	var n = 0;
+	data.forEach(function(d) {
+		d.X = n++;
+		d.Y = d.value;
+	});
+
+	var divWidth = 1000;
+	var divHeight = 480;
+
+	var svg = d3.select("#graph")
+		.on("touchstart", nozoom)
+		.on("touchmove", nozoom)
+		.append("svg")
+		.attr("width", divWidth)
+		.attr("height", divHeight);
+
+	var margin = {top: 20, right: 20, bottom: 50, left: 50};
+	var width = +svg.attr("width") - margin.left - margin.right;
+	var height = +svg.attr("height") - margin.top - margin.bottom;
+
+	var zoom = d3.zoom()
+		.scaleExtent([1, 50])
+		.translateExtent([[0, 0], [width, height]])
+		.extent([[0, 0], [width, height]])
+		.on("zoom", zoomed);
+
+	var x = d3.scaleLinear().range([0, width]);
+	var x2 = d3.scaleLinear().range([0, width]);
+	var y = d3.scaleLinear().range([height, 0]);
+
+	var xAxis = d3.axisBottom(x);
+	var yAxis = d3.axisLeft(y);
+
+	var xExtent = d3.extent(data, function(d) { return d.X; });
+	var xRange = xExtent[1] - xExtent[0];
+	var xDomainMin = xExtent[0] - xRange * 0.02;
+	var xDomainMax = xExtent[1] + xRange * 0.02;
+
+	var yExtent = d3.extent(data, function(d) { return d.Y; });
+	var yRange = yExtent[1] - yExtent[0];
+	var yDomainMin = yExtent[0] - yRange * 0.05;
+	var yDomainMax = yExtent[1] + yRange * 0.05;
+
+	x.domain([xDomainMin, xDomainMax]);
+	y.domain([yDomainMin, yDomainMax]);
+	x2.domain(x.domain());
+
+	svg.append("defs").append("clipPath")
+		.attr("id", "clip")
+		.append("rect")
+		.attr("width", width - 30)
+		.attr("height", height)
+		.attr("transform", "translate(" + 30 + ",0)");
+
+	svg.append("g")
+		.attr("class", "axis axis--y")
+		.attr("transform", "translate(" + 30 + ",0)")
+		.call(yAxis);
+
+	svg.append("g")
+		.attr("class", "axis axis--x")
+		.attr("transform", "translate(0," + height + ")")
+		.call(xAxis);
+
+	svg.append("text")
+		.attr("text-anchor", "middle")
+		.attr("class", "axis-label")
+		.attr("transform", "translate(" + (width - 20) + "," + (height + 50) + ")")
+		.text("Time");
+
+	var line = d3.line()
+		.x(function(d) { return x(d.X); })
+		.y(function(d) { return y(d.Y); });
+
+	var g = svg.append("g")
+		.call(zoom);
+
+	g.append("rect")
+		.attr("width", width)
+		.attr("height", height);
+
+	var view = g.append("g")
+		.attr("class", "view");
+
+	view.append("path")
+		.datum(data)
+		.attr("class", "line")
+		.attr("d", line);
+
+	var points = view.selectAll("circle")
+		.data(data)
+		.enter().append("circle")
+		.attr("cx", function(d) { return x(d.X); })
+		.attr("cy", function(d) { return y(d.Y); })
+		.attr("data_X", function(d) { return d.X; })
+		.attr("data_Y", function(d) { return d.Y; })
+		.attr("r", 5)
+		.on("click", clicked);
+
+	function zoomed() {
+		t = d3.event.transform;
+		x.domain(t.rescaleX(x2).domain());
+		svg.select(".line").attr("d", line);
+		points.data(data)
+			.attr("cx", function(d) { return x(d.X); })
+			.attr("cy", function(d) { return y(d.Y); });
+		svg.select(".axis--x").call(xAxis);
+	}
+
+	function clicked(d, i) {
+		if (d3.event.defaultPrevented) return; // zoomed
+
+		// this function handles changepoint marking
+		var elem = d3.select(this);
+		if (elem.classed("changepoint")) {
+			elem.style("fill", "blue");
+			elem.classed("changepoint", false);
+		} else {
+			elem.style("fill", "red");
+			elem.classed("changepoint", true);
+		}
+		updateTable();
+	}
+
+	function nozoom() {
+		d3.event.preventDefault();
+	}
+}