computeEdgeParity method
Implementation
int computeEdgeParity() {
var s = 0;
for (var i = Edge.bottomRight.index; i >= Edge.upRight.index + 1; i--) {
for (var j = i - 1; j >= Edge.upRight.index; j--) {
if (_ep[j].index > _ep[i].index) {
s++;
}
}
}
return s % 2;
}