calculateSlope static method

double calculateSlope(
  1. Offset pre,
  2. Offset next
)

计算两个坐标的斜率值

Implementation

static double calculateSlope(Offset pre, Offset next) {
  final diffWidth = next.dx - pre.dx;
  final diffHeight = next.dy - pre.dy;
  return diffWidth.abs() / diffHeight.abs();
}