d3.js transition（）。remove（）不工作 [英] d3.js transition().remove() not working

问题描述

我在d3.js中有一个可视化的问题。

I have a problem with a visualization in d3.js.

我有三个组包含几乎相同的可视化，是一个多个小可视化。可视化包括时间线，在改变必须添加/移除适当的数据点时。下面是更新的代码：

I have three groups containing almost identical visualizations, being a take on "multiple small" visualizations. The visualization incorporates a timeline, upon change of which appropriate data points have to be added/removed. Here's the code that does the updating:

var channels = { bt: { x: 0, y: -100 }, sms: { x: -300, y: 200 }, call: { x: 300, y: 200 } };
        //Draw web for each channel
        for (channel in channels) {
            this.circles[channel] = this.web[channel].selectAll("circle")
                   .data(this.displayedNodes, function (d) {
                       return d.id;
                   });

            this.circles[channel].exit().transition().duration(500).attr("r", 0).remove();

            this.circles[channel].enter()
                   .append("circle")
                   .attr("class", "person")
                   .attr("r", 0)
                   .attr("cx", function (d) {
                       return d.friendScales[channel](chart.minScores[channel]).x;
                   })
                   .attr("cy", function (d) {
                       return d.friendScales[channel](chart.minScores[channel]).y;
                   })
                   .attr("fill", function (d) {
                       //return chart.clusterColors[d.cluster];
                       return chart.colors[channel];
                   })
                   .attr("stroke-width", 2)
                   .attr("stroke", function (d) {
                       return d3.rgb(chart.colors[channel]).darker();
                   })
                   .attr("id", function (d) {
                       return "bubble_" + d.id;
                   })
                   .on("mouseover", function (d, i) {
                       return chart.show_details(d, i, this);
                   })
                   .on("mouseout", function (d, i) {
                       return chart.hide_details(d, i, this);
                   });
        }

.exit（）。transition ，圆圈只是滑开，因为它们的数据值现在为0.然而，如果我打开Chrome控制台，手动输入完全相同的事情，这评价，它工作正常。我假设这与JavaScript的异步模型有关，我不是一个JS wiz，所以我有点在这里，这应该是罚款在任何其他语言...

The .exit().transition().remove() part does nothing, the circles just slide away, as their data value is now 0. However if I open the Chrome console and manually type in exactly the same thing this evaluates to, it works fine. I assume this has something to do with JavaScript's asynchronous model, I'm not a JS wiz, so I am a bit at a loss here, this should be fine in any other language...

任何想法都非常感谢！

从评论中添加，因为他们变得巨大：

To add from the comments, as they are becoming huge:

工作范例： http://www.student.dtu.dk/~s103826/
代码： https：// github.com/haljin/d3-webchart/blob/master/Sensible/js/WebChart.js

要查看问题：将灰色矩形拖到时间线（通过拖动边缘调整大小）到结束处的区域，没有数据 - 圆圈应该按 exit（）消失transition（）。remove（）但不要。如果我在该区域设置断点，但在Chrome控制台中输入相同的字符，则它们会这样做。

To see the problem: Drag the grey rectangle on the timeline (resize by draggin edges) onto the area at the end, that does not have data - the circles should disappear as per exit().transition().remove() but don't. If I set a break point at that area however and type the same in the Chrome console, they do.

推荐答案

为了帮助，我重新选择了所有圈子，而不是使用现有的更新选择 this.circles ：）

Thanks to Lars for help, I was re-selecting all circles, rather than using the existing update selection this.circles :)

我现在觉得很蠢。

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