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romsson/.block

Created November 8, 2017 13:39
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[preattentive] is there a red square?
Raw
.block
license: mit
Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="http://romsson.github.io/d3-gridding/build/d3-gridding.js"></script>
<script>
var width = 400,
height = 400,
padding = 8,
n = 11;
var gridding = d3.gridding()
.size([width, height])
.mode("grid");
var var_value = "__value";
var data = d3.range(Math.pow(n, 2));
var svg = d3.select("body")
.append("svg")
.attr("width", width)
.attr("height", height);
var circles = svg.selectAll(".circle")
.data(gridding(data));
circles.enter().append("circle")
.attr("class", "circle")
.attr("r", function(d) {
return Math.max((Math.min(d.height, d.width) / 2) - 5, 5);
})
.style("fill", "red")
.style("opacity", function(d, i) { return i === 10 ? 0: 1; })
.attr("transform", function(d) { return "translate(" + d.cx + "," + d.cy + ")"; })
var rects = svg.selectAll(".rect")
.data(gridding(data));
rects.enter().append("rect")
.attr("class", "rect")
.style("fill", "red")
.style("opacity", function(d, i) { return i === 10 ? 1: 0; })
.attr("width", function(d) { return d.width - 2 * padding; })
.attr("height", function(d) { return d.height - 2 * padding; })
.attr("transform", function(d) { return "translate(" + (d.x + padding) + "," + (d.y + padding) + ")"; });
</script>
</body>
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