/**
* Checks if the given point is inside this closed polygon. If this
* polyline is not closed (\see setClosed), false is returned.
*/
bool RPolyline::contains(const RVector& point, bool borderIsInside, double tolerance) const {
if (!isGeometricallyClosed(tolerance)) {
return false;
}
// check if point is on polyline:
if (isOnShape(point, true, tolerance)) {
return borderIsInside;
}
if (hasArcSegments()) {
QPainterPath pp = toPainterPath();
return pp.contains(QPointF(point.x, point.y));
}
int nvert = vertices.size();
int i, j;
bool c = false;
for (i=0, j=nvert-1; i<nvert; j=i++) {
if (((vertices[i].y>point.y) != (vertices[j].y>point.y)) &&
(point.x < (vertices[j].x-vertices[i].x) * (point.y-vertices[i].y) / (vertices[j].y-vertices[i].y) + vertices[i].x) ) {
c = !c;
}
}
return c;
}
/**
* Checks if the given point is inside this closed polygon. If this
* polyline is not closed (\see setClosed), false is returned.
*/
bool RPolyline::contains(const RVector& point) const {
if (!closed) {
return false;
}
QPainterPath pp = toPainterPath();
return pp.contains(QPointF(point.x, point.y));
}