C++ (Cpp) PositionVector::intersectsAtPoint示例

示例#1

文件： PositionVector.cpp 项目： RamonHPSilveira/urbansim

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;
}

示例#2

文件： GeomHelper.cpp 项目： smendez-hi/SUMO-hib

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;
}