bool Locator::computeLocalBounds(Locator& source, osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const
{
typedef std::list<osg::Vec3d> Corners;
Corners corners;
osg::Vec3d cornerNDC;
if (Locator::convertLocalCoordBetween(source, osg::Vec3d(0.0,0.0,0.0), *this, cornerNDC))
{
corners.push_back(cornerNDC);
}
if (Locator::convertLocalCoordBetween(source, osg::Vec3d(1.0,0.0,0.0), *this, cornerNDC))
{
corners.push_back(cornerNDC);
}
if (Locator::convertLocalCoordBetween(source, osg::Vec3d(0.0,1.0,0.0), *this, cornerNDC))
{
corners.push_back(cornerNDC);
}
if (Locator::convertLocalCoordBetween(source, osg::Vec3d(1.0,1.0,0.0), *this, cornerNDC))
{
corners.push_back(cornerNDC);
}
if (corners.empty()) return false;
Corners::iterator itr = corners.begin();
bottomLeft.x() = topRight.x() = itr->x();
bottomLeft.y() = topRight.y() = itr->y();
++itr;
for(;
itr != corners.end();
++itr)
{
bottomLeft.x() = osg::minimum( bottomLeft.x(), itr->x());
bottomLeft.y() = osg::minimum( bottomLeft.y(), itr->y());
topRight.x() = osg::maximum( topRight.x(), itr->x());
topRight.y() = osg::maximum( topRight.y(), itr->y());
}
return true;
}
bool Locator::computeLocalBounds(osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const
{
OSG_NOTICE<<"Locator::computeLocalBounds"<<std::endl;
typedef std::list<osg::Vec3d> Corners;
Corners corners;
osg::Vec3d cornerNDC;
if (convertLocalToModel(osg::Vec3d(0.0,0.0,0.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (convertLocalToModel(osg::Vec3d(1.0,0.0,0.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (convertLocalToModel(osg::Vec3d(0.0,1.0,0.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (convertLocalToModel(osg::Vec3d(1.0,1.0,0.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (convertLocalToModel(osg::Vec3d(0.0,0.0,1.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (convertLocalToModel(osg::Vec3d(1.0,0.0,1.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (convertLocalToModel(osg::Vec3d(0.0,1.0,1.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (convertLocalToModel(osg::Vec3d(1.0,1.0,1.0), cornerNDC))
{
corners.push_back(cornerNDC);
}
if (corners.empty()) return false;
Corners::iterator itr = corners.begin();
bottomLeft.x() = topRight.x() = itr->x();
bottomLeft.y() = topRight.y() = itr->y();
bottomLeft.z() = topRight.z() = itr->z();
++itr;
for(;
itr != corners.end();
++itr)
{
bottomLeft.x() = osg::minimum( bottomLeft.x(), itr->x());
bottomLeft.y() = osg::minimum( bottomLeft.y(), itr->y());
bottomLeft.z() = osg::minimum( bottomLeft.z(), itr->z());
topRight.x() = osg::maximum( topRight.x(), itr->x());
topRight.y() = osg::maximum( topRight.y(), itr->y());
topRight.z() = osg::maximum( topRight.z(), itr->z());
}
return true;
}