itemDegree method

double itemDegree(
  1. String item
)

Implementation

double itemDegree(String item) {
  if (item == 'N') return 0;
  if (item == 'E') return 90;
  if (item == 'S') return 180;
  if (item == 'W') return 270;
  return double.parse(item);
}