bool
Boundary::partialWithin(const AbstractPoly& poly, SUMOReal offset) const {
return
poly.around(Position(myXmax, myYmax), offset) ||
poly.around(Position(myXmin, myYmax), offset) ||
poly.around(Position(myXmax, myYmin), offset) ||
poly.around(Position(myXmin, myYmin), offset);
}
bool
PositionVector::partialWithin(const AbstractPoly& poly, SUMOReal offset) const {
for (const_iterator i = begin(); i != end() - 1; i++) {
if (poly.around(*i, offset)) {
return true;
}
}
return false;
}
bool
Boundary::overlapsWith(const AbstractPoly& p, SUMOReal offset) const {
if (
// check whether one of my points lies within the given poly
partialWithin(p, offset) ||
// check whether the polygon lies within me
p.partialWithin(*this, offset)) {
return true;
}
// check whether the bounderies cross
return
p.crosses(Position(myXmax + offset, myYmax + offset), Position(myXmin - offset, myYmax + offset))
||
p.crosses(Position(myXmin - offset, myYmax + offset), Position(myXmin - offset, myYmin - offset))
||
p.crosses(Position(myXmin - offset, myYmin - offset), Position(myXmax + offset, myYmin - offset))
||
p.crosses(Position(myXmax + offset, myYmin - offset), Position(myXmax + offset, myYmax + offset));
}