[英]Appending element clone to svg group in d3js
我可以将一个矩形附加到拖放组中,但是不能正常工作。 如果将多个矩形拖放到组上,则这些矩形将在不同的位置错位。 我敢肯定一定有什么问题。
演示: http : //jsfiddle.net/wqvLLbLa/
码:
var svgContainer = d3.select("body").append("svg")
.attr("width", 800)
.attr("height", 803);
var rect = svgContainer.append("rect")
.attr("x", 10)
.attr("y", 50)
.attr("width", 51)
.attr("height", 41)
.attr("rx", 10)
.attr("stroke-width", 2)
.attr("stroke", "#7E7E7E")
.style('cursor', 'move')
.style("fill", "white");
function moveRect() {
d3.select(this)
.attr('x', d3.event.x)
.attr('y', d3.event.y);
}
var dragGroup = d3.behavior.drag()
.origin(function () {
var g = this;
return {x: d3.transform(g.getAttribute("transform")).translate[0],
y: d3.transform(g.getAttribute("transform")).translate[1]};
})
.on("drag", function (d, i) {
g = this;
translate = d3.transform(g.getAttribute("transform")).translate;
console.log(translate);
x = d3.event.dx + translate[0],
y = d3.event.dy + translate[1];
d3.select(g).attr("transform", "translate(" + x + "," + y + ")");
d3.event.sourceEvent.stopPropagation();
});
var group = svgContainer.append("g")
.attr("id", "mygroup")
.call(dragGroup)
.style('cursor', 'move')
.attr("transform", "translate(20, 20)");
group.append("rect")
.attr("x", 250)
.attr("y", 250)
.attr("width", 151)
.attr("height", 141)
.attr("rx", 10)
.attr("stroke-width", 2)
.attr("stroke", "#7E7E7E")
.style("fill", "white");
var circleDrag = d3.behavior.drag()
.origin(function ()
{
var t = d3.select(this);
return {x: t.attr("cx"), y: t.attr("cy")};
})
var rectDrag = d3.behavior.drag()
.origin(function ()
{
var t = d3.select(this);
return {x: t.attr("x"), y: t.attr("y")};
})
.on('dragend', function (d) {
var mouseCoordinates = d3.mouse(this);
var groupTransform = d3.transform(group.attr("transform"));
var groupX = groupTransform.translate[0];
var groupY = groupTransform.translate[1];
var rect = group.select("rect");
var rectX = +rect.attr("x");
var rectY = +rect.attr("y");
var rectWidth = +rect.attr("width");
var rectHeight = +rect.attr("height");
if (mouseCoordinates[0] > groupX + rectX
&& mouseCoordinates[0] < groupX + rectX + rectWidth
&& mouseCoordinates[1] > groupY + rectY
&& mouseCoordinates[1] < groupY + rectY + rectHeight) {
//Append new element
var newRect = d3.select("g").append("rect")
.classed("drg", true)
.attr("x", 100)
.attr("y", 100)
.attr("rx", 10)
.attr("width", 51)
.attr("height", 41)
.attr("x", mouseCoordinates[0])
.attr("y", mouseCoordinates[1])
.style("fill", "white")
.style("stroke-width", 2)
.style("stroke", "#CDB483");
}
else
{
var newRect = d3.select("svg").append("rect")
.classed("drg", true)
.attr("x", 100)
.attr("y", 100)
.attr("rx", 10)
.attr("width", 51)
.attr("height", 41)
.attr("x", mouseCoordinates[0])
.attr("y", mouseCoordinates[1])
.style("fill", "white")
.style("stroke-width", 2)
.style("stroke", "#CDB483")
.call(
d3.behavior.drag()
.on('drag', moveRect).origin(function () {
var t = d3.select(this);
return {x: t.attr("x"), y: t.attr("y")};
}));
}
});
rect.call(rectDrag);
回应更新问题-如评论中所述。
重复的原因是因为您在边界检查之后向targetG追加了一个新元素,而不是targetCircle。
解决此问题的最简单方法是在像这样添加新圆圈后简单地删除targetCircle
targetCircle.remove();
小提琴-http: //jsfiddle.net/afmLhofL/
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