DataVizApril/index.html

## index.html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
	<title>D3 Ternary Plot</title>
	<style>
		line.axis {
			stroke-width: 2;
			stroke: #363636;
		}
		line.tick {
			stroke-width: 1;
			stroke: #c3c3c3;
		}

		line.tick-a, text.tick-a {
			stroke: #c30000;
		}

		line.tick-b, text.tick-b {
			stroke: #0000c3;
		}

		line.tick-c, text.tick-c {
			stroke: #008000;
		}

		text.tick-text {
			font-family: "sans-serif";
			font-size: 10px;
			fill: #000000;
		}


		circle {
			fill: green;
		}
	</style>

</head>

<div id="plot">

</div>

<script charset="UTF-8" src="http://cdnjs.cloudflare.com/ajax/libs/d3/3.1.6/d3.min.js"></script>

<script>
(function() {
	var svg = d3.select('#plot').append('svg')
						.attr("width", 400)
                        .attr("height", 400);

    var w = 300;
    var h = 260;
    var m = 20;

	var corners = [[m,h+m], [w+m,h+m], [(w/2)+m,m]]

	corners.forEach(function(corner, idx) {
		var c1 = idx, c2 = idx + 1; if(c2 >= corners.length) { c2 = 0;}
		svg.append("line")
			.attr("x1", corners[c1][0])
			.attr("y1", corners[c1][1])
			.attr("x2", corners[c2][0])
			.attr("y2", corners[c2][1])
			.classed('axis', true);
	})

	var ticks = [0,20,40,60,80,100], n = ticks.length;
	ticks.forEach(function(v) {

		var coord1 = coord(v, 0, 100-v);
		var coord2 = coord(v, 100-v, 0);
		var coord3 = coord(0, 100-v, v);
		var coord4 = coord(100-v, 0, v);

		if(v !== 0 && v !== 100) {

			svg.append("line")
				.attr("x1", coord1[0])
				.attr("y1", coord1[1])
				.attr("x2", coord2[0])
				.attr("y2", coord2[1])
				.classed('tick tick-a', true);

			svg.append("line")
				.attr("x1", coord2[0])
				.attr("y1", coord2[1])
				.attr("x2", coord3[0])
				.attr("y2", coord3[1])
				.classed('tick tick-b', true);

			svg.append("line")
				.attr("x1", coord3[0])
				.attr("y1", coord3[1])
				.attr("x2", coord4[0])
				.attr("y2", coord4[1])
				.classed('tick tick-c', true);

		}
		svg.append("text")
			.attr("x", coord1[0] - 15)
             .attr("y", coord1[1]  )
             .text( function (d) { return v; })
             .classed('tick-text tick-a', true);

		svg.append("text")
			.attr("x", coord2[0] - 6)
             .attr("y", coord2[1] + 10 )
             .text( function (d) { return (100- v); })
             .classed('tick-text tick-b', true);

		svg.append("text")
			.attr("x", coord3[0] + 6)
             .attr("y", coord3[1] )
             .text( function (d) { return v; })
             .classed('tick-text tick-c', true);

	})


	var circles = svg.selectAll("circle").data([coord(10, 20, 70), coord(20, 30, 50), coord(40, 20, 40), coord(20, 80, 0)]);

	circles.enter().append("circle")
		.attr("cx", function (d) { return d[0]; })
		.attr("cy", function (d) { return d[1]; })
		.attr("r", 6);

	function coord(a, b, c){
		var sum, pos = [0,0];
	    sum = a + b + c;
	    if(sum !== 0) {
		    a /= sum;
		    b /= sum;
		    c /= sum;

			pos[0] =  corners[0][0]  * a + corners[1][0]  * b + corners[2][0]  * c;
			pos[1] =  corners[0][1]  * a + corners[1][1]  * b + corners[2][1]  * c;
		}
	    return pos;
	}
	function scale(/* point */ p, factor) {
	    return [p[0] * factor, p[1] * factor];
	}


})()


</script>

</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>D3 Ternary Plot</title>
	<style>
	line.axis {
	stroke-width: 2;
	stroke: #363636;
	}
	line.tick {
	stroke-width: 1;
	stroke: #c3c3c3;
	}

	line.tick-a, text.tick-a {
	stroke: #c30000;
	}

	line.tick-b, text.tick-b {
	stroke: #0000c3;
	}

	line.tick-c, text.tick-c {
	stroke: #008000;
	}

	text.tick-text {
	font-family: "sans-serif";
	font-size: 10px;
	fill: #000000;
	}


	circle {
	fill: green;
	}
	</style>

	</head>

	<div id="plot">

	</div>

	<script charset="UTF-8" src="http://cdnjs.cloudflare.com/ajax/libs/d3/3.1.6/d3.min.js"></script>

	<script>
	(function() {
	var svg = d3.select('#plot').append('svg')
	.attr("width", 400)
	.attr("height", 400);

	var w = 300;
	var h = 260;
	var m = 20;

	var corners = [[m,h+m], [w+m,h+m], [(w/2)+m,m]]

	corners.forEach(function(corner, idx) {
	var c1 = idx, c2 = idx + 1; if(c2 >= corners.length) { c2 = 0;}
	svg.append("line")
	.attr("x1", corners[c1][0])
	.attr("y1", corners[c1][1])
	.attr("x2", corners[c2][0])
	.attr("y2", corners[c2][1])
	.classed('axis', true);
	})

	var ticks = [0,20,40,60,80,100], n = ticks.length;
	ticks.forEach(function(v) {

	var coord1 = coord(v, 0, 100-v);
	var coord2 = coord(v, 100-v, 0);
	var coord3 = coord(0, 100-v, v);
	var coord4 = coord(100-v, 0, v);

	if(v !== 0 && v !== 100) {

	svg.append("line")
	.attr("x1", coord1[0])
	.attr("y1", coord1[1])
	.attr("x2", coord2[0])
	.attr("y2", coord2[1])
	.classed('tick tick-a', true);

	svg.append("line")
	.attr("x1", coord2[0])
	.attr("y1", coord2[1])
	.attr("x2", coord3[0])
	.attr("y2", coord3[1])
	.classed('tick tick-b', true);

	svg.append("line")
	.attr("x1", coord3[0])
	.attr("y1", coord3[1])
	.attr("x2", coord4[0])
	.attr("y2", coord4[1])
	.classed('tick tick-c', true);

	}
	svg.append("text")
	.attr("x", coord1[0] - 15)
	.attr("y", coord1[1] )
	.text( function (d) { return v; })
	.classed('tick-text tick-a', true);

	svg.append("text")
	.attr("x", coord2[0] - 6)
	.attr("y", coord2[1] + 10 )
	.text( function (d) { return (100- v); })
	.classed('tick-text tick-b', true);

	svg.append("text")
	.attr("x", coord3[0] + 6)
	.attr("y", coord3[1] )
	.text( function (d) { return v; })
	.classed('tick-text tick-c', true);

	})


	var circles = svg.selectAll("circle").data([coord(10, 20, 70), coord(20, 30, 50), coord(40, 20, 40), coord(20, 80, 0)]);

	circles.enter().append("circle")
	.attr("cx", function (d) { return d[0]; })
	.attr("cy", function (d) { return d[1]; })
	.attr("r", 6);

	function coord(a, b, c){
	var sum, pos = [0,0];
	sum = a + b + c;
	if(sum !== 0) {
	a /= sum;
	b /= sum;
	c /= sum;

	pos[0] = corners[0][0] * a + corners[1][0] * b + corners[2][0] * c;
	pos[1] = corners[0][1] * a + corners[1][1] * b + corners[2][1] * c;
	}
	return pos;
	}
	function scale(/* point */ p, factor) {
	return [p[0] * factor, p[1] * factor];
	}


	})()



	</script>

	</body>
	</html>