d3js zoom + drag导致冲突 [英] d3js zoom + drag causes conflict
问题描述
我试图应用缩放行为到svg,其中svg中的某些元素已经绑定了拖动行为。没有缩放行为拖动工作正常,没有拖动行为缩放工作正常。当我有两个它们冲突。当我拖动一个圆时,所有其他圆圈开始拖动它。
I am trying to apply the zoom behaviour to a svg where certain elements in the svg are already bound with drag behaviour. without the zoom behaviour drag works fine, without the drag behaviour zoom works fine. When I have both of them it conflicts. When I drag a circle all the other circles starts to drag with it.
这里是小提琴。
任何人都可以帮我找出问题吗?
can anyone help me to figure out the issue?
<svg height="600" width="600" style="background: black">
<g>
<rect x="0" y="0" , width="600" height="40" style="fill:gold;"></rect>
<circle id='drag' cx="15" cy="20" init-cx="15" init-cy="20" r="10"
style="stroke: white; stroke-width: 2px; fill:blue"/>
</g>
<g id="playground">
<g>
<circle class='top' cx="180" cy="120" r="30" style="stroke: white; stroke-width: 2px; fill:white"/>
</g>
<g>
<circle class='top' cx="200" cy="220" r="30" style="stroke: white; stroke-width: 2px; fill:white"/>
</g>
<g>
<circle class='top' cx="320" cy="150" r="50" style="stroke: white; stroke-width: 2px; fill:white"/>
</g>
</g>
var zoom = d3.behavior.zoom()
.scaleExtent([-1, 8])
.on("zoom", function () {
var graph = d3.select('svg');
graph
.select('#playground')
.selectAll('circle')
.select(function () {
return this.parentNode;
})
.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
});
var move = d3.behavior.drag()
.on('drag', function () {
console.log('dragging');
var curr = d3.select(this)
.attr({
cx: d3.mouse(this)[0],
cy: d3.mouse(this)[1]
})
})
.on('dragend', function () {
var curr = d3.select(this);
d3.select('#playground')
.append('circle')
.attr({
cx: curr.attr('cx'),
cy: curr.attr('cy'),
r: curr.attr('r')
})
.style({
fill: 'white',
stroke: 'red',
'stroke-width': '2px'
})
;
curr.attr({
cx: curr.attr('init-cx'),
cy: curr.attr('init-cx')
});
})
;
d3.select('#drag').call(move);
d3.select('.top')
.call(d3.behavior.drag().on('drag', function () {
d3.select(this)
.attr({
cx: d3.mouse(this)[0],
cy: d3.mouse(this)[1]
})
;
}));
d3.select('svg').call(zoom);
推荐答案
我已经实现了单个拖拽节点缩放和平移功能。在 dragstart
圈子事件中使用 stopPropagation
I have implemented individual dragging of nodes working along with overall zooming and panning functionality. Used stopPropagation
of the event in dragstart
event of circles.
希望这有帮助。
var move = d3.behavior.drag()
.on("dragstart", function() {
d3.event.sourceEvent.stopPropagation();
});
工作 JSFiddle
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