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));
}
void cc2Point5DimEditor::update2DDisplayZoom(ccBBox& box)
{
if (!m_window || !m_grid.isValid())
return;
//equivalent to 'ccGLWindow::updateConstellationCenterAndZoom' but we take aspect ratio into account
//we compute the pixel size (in world coordinates)
{
ccViewportParameters params = m_window->getViewportParameters();
double realGridWidth = m_grid.width * m_grid.gridStep;
double realGridHeight = m_grid.height * m_grid.gridStep;
static const int screnMargin = 20;
int screenWidth = std::max(1,m_window->width() - 2*screnMargin);
int screenHeight = std::max(1,m_window->height() - 2*screnMargin);
int pointSize = 1;
if ( static_cast<int>(m_grid.width) < screenWidth
&& static_cast<int>(m_grid.height) < screenHeight)
{
int vPointSize = static_cast<int>(ceil(static_cast<float>(screenWidth) /m_grid.width));
int hPointSize = static_cast<int>(ceil(static_cast<float>(screenHeight)/m_grid.height));
pointSize = std::min(vPointSize, hPointSize);
//if the grid is too small (i.e. necessary point size > 10)
if (pointSize > 10)
{
pointSize = 10;
screenWidth = m_grid.width * pointSize;
screenHeight = m_grid.height * pointSize;
}
}
params.pixelSize = static_cast<float>( std::max( realGridWidth/screenWidth, realGridHeight/screenHeight ) );
params.zoom = 1.0f;
m_window->setViewportParameters(params);
m_window->setPointSize(pointSize);
}
//we set the pivot point on the box center
CCVector3 P = box.getCenter();
m_window->setPivotPoint(CCVector3d::fromArray(P.u));
m_window->setCameraPos(CCVector3d::fromArray(P.u));
m_window->invalidateViewport();
m_window->invalidateVisualization();
m_window->redraw();
}
//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;
}
}
}