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index.html
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<!DOCTYPE html>
<html>
<head>
<title>
Kernel Matrix Visualizaion
</title>
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
canvas {
position: relative;
}
svg {
position: absolute;
}
.cursor {
fill: none;
stroke: brown;
pointer-events: none;
}
select.btn {
-webkit-appearance: button;
-moz-appearance: button;
appearance: button;
width: auto;
}
.dot {
stroke: #000;
}
.grid .tick {
stroke: lightgrey;
opacity: 0.7;
}
.grid path{
stroke-width: 0;
}
div#legend{
border:1px solid black;
height:20px;
}
</style>
<script src="/static/js/d3.min.js"></script>
<script src="/static/js/jquery-1.9.1.min.js"></script>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<link href="/static/bootstrap/css/bootstrap.min.css" rel="stylesheet" media="screen">
<script src="/static/bootstrap/js/bootstrap.min.js"></script>
</head>
<body id="main">
<div class="page-header"><h2> Kernel Matrix Visualization <small>based on Shogun-Toolbox</small></h2></div>
<div class="row">
<div class="span9"></div>
<div class="span3">
<form name="argument">
<label> Sine Freq. </label>
<input style="width:800" type="text" value="1.0" name="frequency" class="span3" onkeyup="value=value.replace(/[^\d{1,}\.\d{1,}|\d{1,}]/g,'')"></br>
<label> Amplitude </label>
<input type="text" value="1.0" name="amplitude" class="span3" onkeyup="value=value.replace(/[^\d{1,}\.\d{1,}|\d{1,}]/g,'')"></br>
<label> Noise Level </label>
<input type="text" value="0.3" name="noise_level" class="span3" onkeyup="value=value.replace(/[^\d{1,}\.\d{1,}|\d{1,}]/g,'')"></br>
<label> Kernel Function </label>
<select name="kernel" class="span3">
<option value="gaus" selected> Gaussian Kernel</option>
<option value="poly"> Polynomial Kernel</option>
<option value="line"> Linear Kernel</option>
</select><br/>
<label> Kernel Width </label>
<input type="text" value="0.3" name="kernel_width" class="span3" onkeyup="value=value.replace(/[^\d{1,}\.\d{1,}|\d{1,}]/g,'')">
<label> degree </label>
<input type="text" value="5" name="degree" onkeyup="value=value.replace(/[^\d]/g,'')">
<div class="btn-group">
<button type="button" class="btn btn-small btn-primary" id="generate" onclick="create_toy_data();">Generate Sine Data</button>
<button type="button" class="btn btn-small btn-primary" id="drawing" onclick="generate_matrix();">Draw</button>
<button type="button" class="btn btn-small btn-primary" onclick="clear_map();">Clear</button>
</div>
<label>legend</label>
<div id="legend"></div>
</form>
</div>
</div>
<script>
toy_data = [];
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 660 - margin.left - margin.right,
height = 530 - margin.top - margin.bottom;
var x = d3.scale.linear()
.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");
x.domain([-5,5]).nice();
y.domain([-4,4]).nice();
function make_x_axis() {
return d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(10)
}
function make_y_axis() {
return d3.svg.axis()
.scale(y)
.orient("left")
.ticks(8)
}
var svg = d3.select(".span9").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
svg.append("g")
.attr("class", "grid")
.attr("transform", "translate(0," + height + ")")
.call(make_x_axis()
.tickSize(-height, 0, 0)
.tickFormat("")
)
svg.append("g")
.attr("class", "grid")
.call(make_y_axis()
.tickSize(-width, 0, 0)
.tickFormat("")
)
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height/2 + ")")
.call(xAxis)
.append("text")
.attr("class", "label")
.attr("x", width)
.attr("y", -6)
.style("text-anchor", "end")
.text("X1");
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(" +width/2 + ", 0)")
.call(yAxis)
.append("text")
.attr("class", "label")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("X2");
function clear_map()
{
svg.selectAll(".dot").remove();
$("#heatmap").remove();
toy_data = [];
}
function create_toy_data()
{
$.ajax(
{
url:"create_toy_data",
type: "POST",
dataType: 'text',
data: {csrfmiddlewaretoken: '{{ csrf_token }}',
amplitude: document.argument.amplitude.value ,
frequency: document.argument.frequency.value,
noise_level: document.argument.noise_level.value},
beforeSend:function(){
$("#generate").attr('disabled', true);
},
success: function(data){
json = $.parseJSON(data)['data'];
svg.selectAll(".dot").remove();
toy_data = json;
svg.selectAll(".dot")
.data(json)
.enter().append("circle")
.attr("class", "dot")
.attr("r", 1.5)
.attr("cx", function(d) { return x(d.x); })
.attr("cy", function(d) { return y(d.y); })
.style("fill", "red")
.style("stroke", "none");
$("#generate").attr('disabled', false)
},
error: function(){alert("Cannot connect to server"); $("#generate").attr('disabled',true);}
});
}
var color = d3.scale.linear()
.domain([0,1])
.range(["blue","red"]);
function generate_matrix()
{
if (toy_data.length !=0)
$.ajax(
{
url: "generate_matrix",
type: "POST",
dataType: 'text',
data: {
csrfmiddlewaretoken: '{{ csrf_token }}',
toy_data: JSON.stringify(toy_data),
kernel_width: document.argument.kernel_width.value,
kernel: document.argument.kernel.value,
degree: document.argument.degree.value
},
beforeSend:function(){
$("#drawing").attr('disabled', true);
},
success:function(data){
heatmap = $.parseJSON(data);
$("#heatmap").remove();
var dx = heatmap[0].length,
dy = heatmap.length;
var canvas = d3.select(".span9").append("canvas")
.attr("id", "heatmap")
.attr("width", 100)
.attr("height", 100)
.style("width", width + "px")
.style("height", height + "px")
.style("left", margin.left + "px")
.style("top", margin.top + "px");
var context = canvas.node().getContext("2d"),
image = context.createImageData(dx, dy);
for (var y = 0, p = -1; y < dy; ++y)
{
for (var x = 0; x < dx; ++x) {
var c = d3.rgb(color(heatmap[y][x]));
image.data[++p] = c.r;
image.data[++p] = c.g;
image.data[++p] = c.b;
image.data[++p] = 128;
}
}
context.putImageData(image, 0, 0);
$("#drawing").attr('disabled', false);
},
error: function(){
$("#drawing").attr('disabled', false);
alert("Error Generated!");
}
});
else{
alert("Sorry, there's no dots to train, generate some, pls");
}
}
$('#legend').css("background-image",
"-webkit-gradient(linear, left top, right bottom, color-stop(0.00, " + color.range()[0] + "), color-stop(1.00, " + color.range()[1] + "))");
$('#legend').html("<span id='lower' style='float:left; color:white;'>" + Math.round(color.domain()[0]) + "</span><span id='upper' style='float:right; color:white;'>" + Math.round(color.domain()[1]) + "</span>") ;
</script>
</body>
</html>