boolean FillPolygonObj::Intersects (LineObj& l) {
BoxObj b;
boolean intersects = false;
if (_normCount == 0) {
Normalize();
}
GetBox(b);
if (b.Intersects(l)) {
MultiLineObj ml (_normx, _normy, _normCount - 1);
intersects = ml.Intersects(l) || Contains(l._p1) || Contains(l._p2);
}
return intersects;
}
boolean MultiLine::s_intersects (BoxObj& userb, Graphic* gs) {
Coord* convx, *convy;
BoxObj b;
boolean result = false;
getBox(b, gs);
if (b.Intersects(userb)) {
convx = new Coord[count()];
convy = new Coord[count()];
transformList(x(), y(), count(), convx, convy, gs);
MultiLineObj ml (convx, convy, count());
result = ml.Intersects(userb);
delete convx;
delete convy;
}
return result;
}
bool OpenBSpline::s_intersects (BoxObj& userb, Graphic* gs) {
Coord* convx, *convy;
BoxObj b;
bool result = false;
getBox(b, gs);
if (b.Intersects(userb)) {
convx = new Coord[_count];
convy = new Coord[_count];
transformList(_x, _y, _count, convx, convy, gs);
MultiLineObj ml;
ml.SplineToMultiLine(convx, convy, _count);
result = ml.Intersects(userb);
delete convx;
delete convy;
}
return result;
}
boolean Graphic31::intersects_gs (BoxObj& userb, Graphic31* gs) {
Coord* convx, *convy;
Coord ll, bb, rr, tt;
getbounds_gs(ll, bb, rr, tt, gs);
BoxObj b(ll, bb, rr, tt);;
boolean result = false;
if (!_curved && !_fill) {
if (b.Intersects(userb)) {
convx = new Coord[_ctrlpts+1];
convy = new Coord[_ctrlpts+1];
Xform_gs(_x, _y, _ctrlpts, convx, convy, gs);
if (_closed) {
convx[_ctrlpts] = *convx;
convy[_ctrlpts] = *convy;
MultiLineObj ml(convx, convy, _ctrlpts+1);
result = ml.Intersects(userb);
} else {
MultiLineObj ml(convx, convy, _ctrlpts);
result = ml.Intersects(userb);
}
delete convx;
delete convy;
}
return result;
} else if (!_curved && _fill) {
if (b.Intersects(userb)) {
convx = new Coord[_ctrlpts];
convy = new Coord[_ctrlpts];
Xform_gs(_x, _y, _ctrlpts, convx, convy, gs);
FillPolygonObj fp (convx, convy, _ctrlpts);
result = fp.Intersects(userb);
delete convx;
delete convy;
}
return result;
} else if (_curved && !_fill) {
if (b.Intersects(userb)) {
convx = new Coord[_ctrlpts];
convy = new Coord[_ctrlpts];
Xform_gs(_x, _y, _ctrlpts, convx, convy, gs);
MultiLineObj ml;
if (_closed) {
ml.ClosedSplineToPolygon(convx, convy, _ctrlpts);
} else {
ml.SplineToMultiLine(convx, convy, _ctrlpts);
}
result = ml.Intersects(userb);
delete convx;
delete convy;
}
return result;
} else {
if (b.Intersects(userb)) {
convx = new Coord[_ctrlpts];
convy = new Coord[_ctrlpts];
Xform_gs(_x, _y, _ctrlpts, convx, convy, gs);
FillPolygonObj fp;
fp.ClosedSplineToPolygon(convx, convy, _ctrlpts);
result = fp.Intersects(userb);
delete convx;
delete convy;
}
return result;
}
}
