Updating chart.map property on the mapChart has no effect

[jszuminski]

Behaviour

Nothing shows up when an empty chart is created and then updated with a series (without series.mapData) but with a property chart.map set.

Live demo with steps to reproduce

Demo: https://jsfiddle.net/BlackLabel/t1rgs723/

1. Run the demo & see that the chart doesn't show up
2. If you uncomment series.mapData: topology everything works

Product version

Highcharts Maps 10.3.3

[KacperMadej]

And also the map's suggested/guessed projection is not correctly set (thus the projection.name in the mapView

Workaround: set projection name, and use mapData in series instead of chart.map
https://jsfiddle.net/BlackLabel/t1rgs723/4/

[fzc-seaside-villager]

Hi,

Thank you for your response.

You said the projection is not correctly set,

mapView: {
  zoom: 1,
  maxZoom: 4,
  projection: {
    name: 'Miller'
  }
},

It seems a normal one, where is the wrong part?

And yes, we can find a few alternatives for this issue.

But since most of the demos listed on the official demo page (https://www.highcharts.com/demo/maps) like beloved ones,
https://www.highcharts.com/samples/maps/demo/all-maps?codepen
https://www.highcharts.com/samples/maps/demo/data-class-ranges?codepen
https://www.highcharts.com/samples/maps/demo/doubleclickzoomto?codepen
they only include

{
  chart: {
    map: topology
  },
}

and do not include

{
  ...
  series: [{
    mapData: topology
  }]
}

It might be confusing when users dynamically generate their mapChart.options from an empty {} to a customised option.
If setting series.mapData: topology is the recommended way, might consider updating the current code demos.