Skip to content

Instantly share code, notes, and snippets.

@mbostock
Last active August 30, 2017 13:26
Embed
What would you like to do?
SVG Semantic Zooming
license: gpl-3.0
<!DOCTYPE html>
<meta charset="utf-8">
<svg width="960" height="500"></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");
var randomX = d3.randomNormal(width / 2, 80),
randomY = d3.randomNormal(height / 2, 80),
data = d3.range(2000).map(function() { return [randomX(), randomY()]; });
var circle = svg.selectAll("circle")
.data(data)
.enter().append("circle")
.attr("r", 2.5)
.attr("transform", transform(d3.zoomIdentity));
svg.append("rect")
.attr("fill", "none")
.attr("pointer-events", "all")
.attr("width", width)
.attr("height", height)
.call(d3.zoom()
.scaleExtent([1, 8])
.on("zoom", zoom));
function zoom() {
circle.attr("transform", transform(d3.event.transform));
}
function transform(t) {
return function(d) {
return "translate(" + t.apply(d) + ")";
};
}
</script>
@devwolf75
Copy link

Are there any relevant changes one needs to do in order to migrate this code to v4?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment