C++ (Cpp) mgGetRectHandle示例

示例#1

文件： mgrect.cpp 项目： acekiller/touchvg

Point2d MgBaseRect::_getHandlePoint(UInt32 index) const
{
    Point2d pt;
    mgGetRectHandle(getRect(), index, pt);
    pt *= Matrix2d::rotation(getAngle(), getCenter());
    return pt;
}

示例#2

文件： mgrect.cpp 项目： fanliugen/touchvg

bool MgDiamond::_setHandlePoint(UInt32 index, const Point2d& pt, float tol)
{
    if (!getFlag(kMgFixedLength)) {
        return MgBaseRect::_setHandlePoint(4 + index % 4, pt, tol);
    }
    
    Point2d cen(getCenter());
    Point2d pnt, ptup, ptside;
    
    pnt = pt * Matrix2d::rotation(-getAngle(), cen);
    mgGetRectHandle(getRect(), 4 + (index + 2) % 4, ptup);
    mgGetRectHandle(getRect(), 4 + (index + 1) % 4, ptside);
    
    float len = ptup.distanceTo(ptside);
    float dy = index % 2 == 0 ? pnt.y - ptup.y : pnt.x - ptup.x;
    float ry = mgMin(len, (float)fabs(dy) / 2);
    float rx = (float)sqrt(len * len - ry * ry);
    Box2d rect(cen, rx * 2, ry * 2);
    setRect(rect.leftTop(), rect.rightBottom(), getAngle(), cen);
    
    return true;
}