Position
PositionVector::intersectsAtPoint(const PositionVector& v1) const {
for (const_iterator i = begin(); i != end() - 1; i++) {
if (v1.intersects(*i, *(i + 1))) {
return v1.intersectsAtPoint(*i, *(i + 1));
}
}
/*
if(v1.intersects(*(end()-1), *(begin()))) {
return v1.intersectsAtPoint(*(end()-1), *(begin()));
}
*/
return Position::INVALID;
}
Position
GeomHelper::crossPoint(const Boundary& b, const PositionVector& v) {
if (v.intersects(Position(b.xmin(), b.ymin()), Position(b.xmin(), b.ymax()))) {
return v.intersectsAtPoint(
Position(b.xmin(), b.ymin()),
Position(b.xmin(), b.ymax()));
}
if (v.intersects(Position(b.xmax(), b.ymin()), Position(b.xmax(), b.ymax()))) {
return v.intersectsAtPoint(
Position(b.xmax(), b.ymin()),
Position(b.xmax(), b.ymax()));
}
if (v.intersects(Position(b.xmin(), b.ymin()), Position(b.xmax(), b.ymin()))) {
return v.intersectsAtPoint(
Position(b.xmin(), b.ymin()),
Position(b.xmax(), b.ymin()));
}
if (v.intersects(Position(b.xmin(), b.ymax()), Position(b.xmax(), b.ymax()))) {
return v.intersectsAtPoint(
Position(b.xmin(), b.ymax()),
Position(b.xmax(), b.ymax()));
}
throw 1;
}
