Version

4.9.0

Reproduction link

https://jsfiddle.net/ramgorur/cfor274e/latest

Steps to reproduce

Just follow the JSFiddle link and run the code. No setup necessary.

What is expected?

If the parallelAxis and series are modified in option on the fly, the axes and the data should change accordingly.

What is actually happening?

Let's say I have a parallel plot of 4-dimensional data. The option is like this:

var option = { parallelAxis: null, series: null };

var myChart = echarts.init(document.getElementById("plot"));

option.parallelAxis = [
        { dim: 0, name: "f1" }, 
        { dim: 1, name: "f2" }, 
        { dim: 2, name: "f3" }, 
        { dim: 3, name: "f4" }
    ];
option.series = [{
        data: data_4d,
        lineStyle: { color: "red" },
        name: "data_4d",
        type: "parallel"
    }];

myChart.setOption(option);

Now, if I change the option with different data and axes, like this:

var opt = myChart.getOption();
opt.parallelAxes = [
    { dim: 0, name: "f1" }, 
    { dim: 1, name: "f2"}, 
    { dim: 2, name: "f3"}
];
opt.series = [{
    data: data_3d,
    lineStyle: { color: "red" },
    name: "data_3d",
    type: "parallel"
}];
myChart.setOption(opt);

The last axis still stays in the plot.

Please note: In the case of parallel and scatter plots, there are many options that can't be modified on the fly.

Not sure if this is a bug or I'm not doing it in a correct way