我基于这个拖放的例子进行了工作:
我想拖动一个分组。我将两个矩形放在一个分组中,现在想要拖动和释放整个分组,在我的代码中,拖放只适用于单个矩形,而不是整个分组。
以下是我的代码:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"> </script>
<title>Drag And Drop</title>
</head>
<body>
<div id="viz"></div>
<script type="text/javascript">
var vizSVG = d3.select("#viz")
.append("svg")
.attr("width", 400)
.attr("height", 300);
var group =d3.select("svg")
.append("g")
.attr("id","group1")
.attr("x",50)
.attr("y", 140)
//.attr("fill", "yellow")
// .call(d3.behavior.drag().on("drag", move));
group.append("rect")
.attr("id", "bluerect")
.attr("x", 50)
.attr("y", 140)
.attr("width", 50)
.attr("height", 50)
.attr("stroke", "red")
.attr("fill", "blue")
.attr("opacity","0.5")
.call(d3.behavior.drag().on("drag", move));
group.append("rect")
.attr("id", "redrect")
.attr("x", 110)
.attr("y", 140)
.attr("width", 50)
.attr("height", 50)
.attr("stroke", "blue")
.attr("fill", "red")
.call(d3.behavior.drag().on("drag", move));
function move(){
this.parentNode.appendChild(this);
var dragTarget = d3.select(this);
dragTarget
.attr("x", function(){;return d3.event.dx + parseInt(dragTarget.attr("x"))})
.attr("y", function(){return d3.event.dy + parseInt(dragTarget.attr("y"))});
};
</script>
</body>
</html>