void BoxCenterMovable::_updateRenderQueue(Ogre::RenderQueue* queue)
{
if(!object.lock())
return;
getBoundingBoxCenter();
// Project the sphere onto the camera
Ogre::Real left, right, top, bottom;
Ogre::Sphere sphere(mCenterPosWC,PointPixelSize);
if (m_pCamera->projectSphere(sphere, &left, &top, &right, &bottom))
{
int iLeft, iTop, iWidth, iHeight;
mViewport->getActualDimensions(iLeft, iTop, iWidth, iHeight);
size_t szLeft, szRight, szTop, szBottom;
szLeft = (size_t)(iLeft + ((left + 1) * 0.5 * iWidth));
szRight = (size_t)(iLeft + ((right + 1) * 0.5 * iWidth));
szTop = (size_t)(iTop + ((-top + 1) * 0.5 * iHeight));
szBottom = (size_t)(iTop + ((-bottom + 1) * 0.5 * iHeight));
mCenterPosSC.x = ( szLeft + szRight ) / 2;
mCenterPosSC.y = ( szTop + szBottom ) / 2;
}
int nTop = mCenterPosSC.y - PointPixelSize/2;
int nLeft = mCenterPosSC.x - PointPixelSize/2;
mObjectCenterPointRect->setTop(nTop);
mObjectCenterPointRect->setLeft(nLeft);
mObjectCenterPointRect->setWidth(PointPixelSize);
mObjectCenterPointRect->setHeight(PointPixelSize);
}
void SceneGraph::zoomAllViewpoint()
{
float bboxCenter[3];
float bboxSize[3];
getBoundingBoxCenter(bboxCenter);
getBoundingBoxSize(bboxSize);
ViewpointNode *view = getViewpointNode();
if (view == NULL)
view = getDefaultViewpointNode();
float fov = view->getFieldOfView();
float zoffset = bboxSize[0] / (float)tan(fov);
view->setPosition(bboxCenter[0], bboxCenter[1], bboxCenter[2] + zoffset*5.0f);
view->setOrientation(0.0f, 0.0f, 1.0f, 0.0f);
}
void
BoxCenterMovable::init(const ObjectPtr& obj,Ogre::SceneManager* mgr,Ogre::Viewport* viewport,Ogre::Camera* camera)
{
object = obj;
m_pParentSceneManager = mgr;
mViewport = viewport;
m_pCamera = camera;
getBoundingBoxCenter();
float baseExtent = 25.0f;
float dist = (camera->getPosition() - mCenterPosWC).length();
float farClip = camera->getFarClipDistance();
float nearClip = camera->getNearClipDistance();
float extent = 2.0f * dist / (farClip + nearClip) * baseExtent;
Ogre::AxisAlignedBox box((mCenterPosWC + Ogre::Vector3(-extent,-extent,-extent)),(mCenterPosWC + Ogre::Vector3(extent,extent,extent)));
setBoundingBox(box);
createGuiElements();
}