d3indepth · June 19, 2020 15:08 · Aug 2, 2017 · Dec 15, 2016
diff --git a/preview.png b/preview.png
diff --git a/thumbnail.png b/thumbnail.png
diff --git a/.block b/.block
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+license: gpl-3.0
+height: 180
+border: no
diff --git a/README.md b/README.md
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+Stack generator (stream).
+
+From [D3 in Depth](http://d3indepth.com) book by [Peter Cook](http://animateddata.co.uk).
diff --git a/index.html b/index.html
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+<!DOCTYPE html>
+<meta charset="utf-8">
+<head>
+  <title>Stack generator (stream)</title>
+</head>
+
+<body>
+  <svg width="700" height="170">
+  	<g transform="translate(20, -50)"></g>
+  </svg>
+
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script>
+  <script>
+var yScale = d3.scaleLinear().domain([0, 800]).range([200, 0]);
+
+var areaGenerator = d3.area()
+	.x(function(d, i) {
+		return i * 50;
+	})
+	.y0(function(d) {
+		return yScale(d[0]);
+	})
+	.y1(function(d) {
+		return yScale(d[1]);
+	})
+	.curve(d3.curveCatmullRom);
+
+var colors = ['#FBB65B', '#FBCF3B', '#de3163', '#4A79A4'];
+
+var data = [
+  {day: 1, apricots: 100, bananas: 140, cherries: 105, damsons: 80},
+  {day: 2, apricots: 110, bananas: 150, cherries: 105, damsons: 40},
+  {day: 3, apricots: 130, bananas: 160, cherries: 115, damsons: 50},
+  {day: 4, apricots: 110, bananas: 200, cherries: 110, damsons: 90},
+  {day: 5, apricots: 100, bananas: 220, cherries: 105, damsons: 120},
+  {day: 6, apricots: 120, bananas: 240, cherries: 105, damsons: 150},
+  {day: 7, apricots: 80, bananas: 230, cherries: 105, damsons: 150},
+  {day: 8, apricots: 100, bananas: 215, cherries: 110, damsons: 100},
+  {day: 9, apricots: 60, bananas: 185, cherries: 105, damsons: 150},
+  {day: 10, apricots: 120, bananas: 180, cherries: 130, damsons: 150}
+];
+
+var stack = d3.stack()
+  .keys(['apricots', 'bananas', 'cherries', 'damsons'])
+  .order(d3.stackOrderInsideOut)
+  .offset(d3.stackOffsetWiggle);
+
+var stackedSeries = stack(data);
+
+d3.select('g')
+	.selectAll('path')
+	.data(stackedSeries)
+	.enter()
+	.append('path')
+	.style('fill', function(d, i) {
+		return colors[i];
+	})
+	.attr('d', areaGenerator)
+
+  </script>
+</body>
+</html>
+
+
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		Stack generator (stream).

		From [D3 in Depth](http://d3indepth.com) book by [Peter Cook](http://animateddata.co.uk).