From 1f468ecba07b800a87a224a0dbc00b9eac977dfa Mon Sep 17 00:00:00 2001
From: James Gao <james@lyra>
Date: Fri, 17 Oct 2014 13:54:42 -0700
Subject: [PATCH] working on d3 graph for temperature

---
 kiln/temp_graph.js | 78 ++++++++++++++++++++++++++++++++++++++++++++++
 kiln/template.html | 23 +++++++++++++-
 2 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 kiln/temp_graph.js

diff --git a/kiln/temp_graph.js b/kiln/temp_graph.js
new file mode 100644
index 0000000..8ee806b
--- /dev/null
+++ b/kiln/temp_graph.js
@@ -0,0 +1,78 @@
+var margin = {top: 20, right: 20, bottom: 30, left: 50};
+var width = $("#graph").width() - margin.left - margin.right;
+var height = $("#graph").height() - margin.top - margin.bottom;
+
+var x = d3.time.scale()
+    .range([0, width]);
+
+var y = d3.scale.linear()
+    .range([height, 0]);
+
+var xAxis = d3.svg.axis()
+    .scale(x)
+    .orient("bottom");
+
+var yAxis = d3.svg.axis()
+    .scale(y)
+    .orient("left");
+
+var line = d3.svg.line()
+    .x(function(d) { return x(d.time); })
+    .y(function(d) { return y(d.temp); });
+
+var svg = d3.select("svg#graph")
+    .attr("width", width + margin.left + margin.right)
+    .attr("height", height + margin.top + margin.bottom)
+  .append("g")
+    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
+
+var data = [{"time":1413571601.55382, "temp":14.4}, {"time":1413571606.291054, "temp":14.6}, {"time":1413571629.841126, "temp":15.8}];
+data.forEach(function(d) {
+  d.time = new Date(d.time*1000.);
+  d.temp = +d.temp;
+});
+
+x.domain(d3.extent(data, function(d) { return d.time; }));
+y.domain(d3.extent(data, function(d) { return d.temp; }));
+
+svg.append("g")
+    .attr("class", "x axis")
+    .attr("transform", "translate(0," + height + ")")
+    .call(xAxis);
+
+svg.append("g")
+    .attr("class", "y axis")
+    .call(yAxis)
+  .append("text")
+    .attr("transform", "rotate(-90)")
+    .attr("y", 6)
+    .attr("dy", ".71em")
+    .style("text-anchor", "end")
+    .text("Temperature (°C)");
+
+svg.append("path")
+    .datum(data)
+    .attr("class", "line")
+    .attr("d", line);
+
+svg.selectAll(".dot")
+      .data(data)
+    .enter().append("circle")
+      .attr("class", "dot")
+      .attr("r", 3.5)
+      .attr("cx", function(d) { return x(d.time); })
+      .attr("cy", function(d) { return y(d.temp); });
+
+function draw() {
+  svg.select("g.x.axis").call(xAxis);
+  svg.select("g.y.axis").call(yAxis);
+  svg.select("path.line").attr("d", line);
+  svg.selectAll(".dot").data(data)
+    .attr("cx", function(d) {return x(d.time);})
+    .attr("cy", function(d) {return y(d.temp);});
+}
+
+function update() {
+  x.domain([new Date(data[0].time.getTime() - 5000), new Date(data[2].time.getTime() + 5000)]);
+  draw();
+}
\ No newline at end of file
diff --git a/kiln/template.html b/kiln/template.html
index 1fb8a94..eedb434 100644
--- a/kiln/template.html
+++ b/kiln/template.html
@@ -23,6 +23,25 @@
       .output-slider {
         width:7% !important;
       }
+
+      .axis path,
+      .axis line {
+        fill: none;
+        stroke: #000;
+        shape-rendering: crispEdges;
+      }
+
+      .line {
+        fill: none;
+        stroke: steelblue;
+        stroke-width: 1.5px;
+      }
+
+      #graph {
+        width:100%;
+        height:500px;
+      }
+
     </style>
 
     <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
@@ -70,7 +89,7 @@
 
       <div class="row">
         <div class="col-sm-8 col-md-8 row-space">
-          <img src="http://placehold.it/1024x500/" class="img-responsive row-space" alt="Graph" />
+          <svg id="graph" class="row-space"></svg>
           
           <div class="btn-group btn-group-justified row-space">
             <div class="btn-group">
@@ -108,5 +127,7 @@
 
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
+    <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
+    <script type="text/javascript" src="temp_graph.js"></script>
   </body>
 </html>
\ No newline at end of file