MapColorMapper constructor

const MapColorMapper({ double? from, double? to, String? value, required Color color, double? minOpacity, double? maxOpacity, String? text, })

Creates a MapColorMapper.

Implementation

const MapColorMapper({
  this.from,
  this.to,
  this.value,
  required this.color,
  this.minOpacity,
  this.maxOpacity,
  this.text,
}) : assert(
       (from == null && to == null) ||
           (from != null && to != null && from < to && to > from),
     ),
     assert(minOpacity == null || minOpacity != 0),
     assert(maxOpacity == null || maxOpacity != 0);