C++ (Cpp) Box2d::contains Examples

Example #1

File: mgarc.cpp Project: Vito2015/vgcore

bool MgArc::_hitTestBox(const Box2d& rect) const
{
    if (!getExtent().isIntersect(rect))
        return false;

    Point2d points[16];
    int n = mgcurv::arcToBezier(points, getCenter(), getRadius(), 0, getStartAngle(), getSweepAngle());
    
    return rect.contains(getCenter()) || mgnear::beziersIntersectBox(rect, n, points);
}

Example #2

File: mgpath.cpp Project: Vito2015/vgcore

bool MgPath::crossWithPath(const MgPath& p, const Box2d& box, Point2d& ptCross) const
{
    MgPathCrossCallback cc(box, ptCross);
    
    if (isLine() && p.isLine()) {
        return (mglnrel::cross2Line(getPoint(0), getPoint(1),
                                    p.getPoint(0), p.getPoint(1), ptCross)
                && box.contains(ptCross));
    }
    if (isLines() && p.isLines()) {
        for (int m = getCount() - (isClosed() ? 0 : 1), i = 0; i < m; i++) {
            Point2d a(getPoint(i)), b(getPoint(i + 1));
            
            for (int n = p.getCount() - (p.isClosed() ? 0 : 1), j = 0; j < n; j++) {
                Point2d c(p.getPoint(j)), d(p.getPoint(j + 1));
                
                if (mglnrel::cross2Line(a, b, c, d, cc.tmpcross)
                    && box.contains(cc.tmpcross)) {
                    float dist = cc.tmpcross.distanceTo(box.center());
                    if (cc.mindist > dist) {
                        cc.mindist = dist;
                        ptCross = cc.tmpcross;
                    }
                }
            }
        }
    }
    else if (isLine() && p.getSubPathCount() == 1) {
        cc.a = getPoint(0);
        cc.b = getPoint(1);
        p.scanSegments(cc);
    }
    else if (p.isLine() && getSubPathCount() == 1) {
        cc.a = p.getPoint(0);
        cc.b = p.getPoint(1);
        scanSegments(cc);
    }
    
    return cc.mindist < box.width();
}