tooltipFields method

VlChartMark tooltipFields(
  1. List<String> fields
)

Shows several named columns as the tooltip, in the order they should be read.

A list is not a channel, so the cursor does not move onto it: the next title belongs to whatever was named before.

fields The column names, in reading order.

Returns This mark, so calls chain.

See also tooltip.

Implementation

VlChartMark tooltipFields(List<String> fields) {
  VlJson list = VlJson.arrayValue();
  for ( final field in fields) {
    VlJson one = VlJson.objectValue();
    one.setMember("field", VlJson.stringValue(field));
    list.arr.add(one);
  }
  this.enc.setMember("tooltip", list);
  return this;
}