XyzColor.fromList constructor

XyzColor.fromList(
  1. List<num> values
)

Constructs a XyzColor from a list of xyz values.

xyz must not be null and must have exactly 3 or 4 values.

x, y, and z all must not be null and must be >= 0.

The alpha value, if provided, must be >= 0 && <= 255.

Implementation

factory XyzColor.fromList(List<num> values) {
  assert(values.length == 3 || values.length == 4);
  assert(values[0] >= 0);
  assert(values[1] >= 0);
  assert(values[2] >= 0);
  if (values.length == 4) assert(values[3] >= 0 && values[3] <= 255);
  final alpha = values.length == 4 ? values[3].round() : 255;
  return XyzColor(values[0], values[1], values[2], alpha);
}