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tomshanley/.block

Created August 13, 2018 21:40
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.block
license: mit
Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<svg width="1280" height="800"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
var svg = d3.select("svg"),
width = +svg.attr("width"),
height = +svg.attr("height"),
g = svg.append("g").attr("transform", "translate(32," + (height / 2) + ")");
var colors = [ "#11ff00", "#22aa00", "#333300", "#440000", "#aa0000", "#ff0000", "#000033", "#000066", "#000099", "#0000dd" ];
function update(data) {
var cellsize = 30;
console.log(data)
var t = d3.transition()
.duration(1500);
// JOIN new data with old elements.
var soft = g.selectAll(".soft")
.data(data.filter(function(d) { return d.soft != 0; }), function(d, i) { return d.row + ":" + d.col; })
// ENTER new elements present in new data.
var enter = soft.enter()
.append("rect")
.attr("class", "soft")
.attr("x", function(d, i) { return (d.row * cellsize); })
.attr("width", cellsize - 5)
.attr("height", cellsize)
.style("fill", function(d, i) { return colors[d.soft] })
var exit = soft.exit();
var merge = enter.merge(soft)
.transition(t)
.style("fill", function(d, i) { return colors[d.soft] })
.style("opacity", 1)
// EXIT old elements not present in new data.
exit.transition(t)
.style("opacity", 1e-6)
.remove();
}
d3.interval(function() {
var data = [];
for(var i = 0; i < 10; i++)
data.push({ row : i, col : 0, value : Math.floor(Math.random() * 10), soft : Math.floor(Math.random() * 3)});
update(data);
}, 1000);
</script>
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