void ccContourExtractorDlg::zoomOn(const ccBBox& box)
{
if (!m_glWindow)
return;
float pixSize = std::max(box.getDiagVec().x / std::max(20,m_glWindow->width()-20), box.getDiagVec().y / std::max(20,m_glWindow->height()-20));
m_glWindow->setPixelSize(pixSize);
m_glWindow->setCameraPos(CCVector3d::fromArray(box.getCenter().u));
}
//Helper
void MakeSquare(ccBBox& box, int pivotType, int defaultDim = -1)
{
assert(defaultDim<3);
assert(pivotType>=0 && pivotType<3);
CCVector3 W = box.getDiagVec();
if (W.x != W.y || W.x != W.z)
{
if (defaultDim < 0)
{
//we take the largest one!
defaultDim = 0;
if (W.u[1] > W.u[defaultDim])
defaultDim = 1;
if (W.u[2] > W.u[defaultDim])
defaultDim = 2;
}
CCVector3 newW(W.u[defaultDim], W.u[defaultDim], W.u[defaultDim]);
switch(pivotType)
{
case 0: //min corner
{
CCVector3 A = box.minCorner();
box = ccBBox(A, A + newW);
}
break;
case 1: //center
{
CCVector3 C = box.getCenter();
box = ccBBox(C - newW / 2.0, C + newW / 2.0);
}
break;
case 2: //max corner
{
CCVector3 B = box.maxCorner();
box = ccBBox(B-newW,B);
}
break;
}
}
}