setCornersFromInts method
Implementation
void setCornersFromInts(
int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) {
setCorners(x0.toDouble(), y0.toDouble(), x1.toDouble(), y1.toDouble(),
x2.toDouble(), y2.toDouble(), x3.toDouble(), y3.toDouble());
}