Built with blockbuilder.org
forked from anonymous's block: Pan & Zoom SVG + HTML in sync
license: mit |
Built with blockbuilder.org
forked from anonymous's block: Pan & Zoom SVG + HTML in sync
<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<script src="https://d3js.org/d3.v4.min.js"></script> | |
<style> | |
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
#canvas-wrapper { width: 960px; height: 500px; position: absolute; left: 0; top: 0; } | |
#canvas { transform-origin: 0 0; } | |
#object { width: 50px; height: 50px; background-color: rgba(255,0,0,.8); position: absolute; left: 50px; top: 50px; } | |
svg { position: absolute; top: 0; left: 0; } | |
</style> | |
</head> | |
<body> | |
<svg id="svg" width=960 height=500></svg> | |
<div id="canvas-wrapper"><div id="canvas"><div id="object"></div></div></div> | |
<script> | |
// Feel free to change or delete any of the code you see in this editor! | |
var svg = d3.select("svg"); | |
var canvas = d3.select("#canvas"); | |
var canvasWrapper = d3.select("#canvas-wrapper"); | |
var root = svg.append("g"); | |
root.append("rect") | |
.attr("x", 50) | |
.attr("y", 50) | |
.attr("width", 50) | |
.attr("height", 50) | |
.style("fill", "blue") | |
.style("stroke", "green") | |
.style("stroke-width", "3px"); | |
var zoom = d3.zoom() | |
.scaleExtent([1, 8]) | |
.on("zoom", function() { | |
root.attr("transform", d3.event.transform); | |
let {x,y,k} = d3.event.transform; | |
canvas.style("transform", `translateX(${x}px) translateY(${y}px) scale(${k})`) | |
console.log(d3.event.transform); | |
}); | |
canvasWrapper.call(zoom); | |
</script> | |
</body> |