C++ ogre::AxisAlignedBox类代码示例

int HOO::allocateEntityToNode(Ogre::SceneManager *& SceneManager,  Ogre::SceneNode *& node, Ogre::Entity*& Ent ,  const Ogre::String& entityName, const Ogre::String& meshName, HOO::entityVector * debugEntityVector){
	try{
		Ent = SceneManager->createEntity( entityName, meshName );
		node->attachObject(Ent);

	} catch( Ogre::Exception & e ){
		Ent = SceneManager->createEntity( entityName, "cube.mesh");

		debugEntityVector->push_back(Ent);
		Ogre::String message = "WARNING ! Failed to load the following mesh : ";
		message += meshName;
		Ogre::LogManager::getSingletonPtr()->logMessage( message);
		node->attachObject(Ent);
		float scale=0.2f;
		node->setScale(scale,scale,scale);

		Ogre::String txtName = "ErrorTxtObject_n";
		txtName += debugEntityVector->size();
		Ogre::MovableText* msg = new Ogre::MovableText(txtName, message ,"BlueHighway-8",int(2/scale),Ogre::ColourValue::Green);
		msg->setTextAlignment(Ogre::MovableText::H_CENTER, Ogre::MovableText::V_CENTER); // Center horizontally and display above the node
		Ogre::AxisAlignedBox AABB =Ent->getWorldBoundingBox(true);
		msg->setLocalTranslation(Ogre::Vector3(0.0f,AABB.getHalfSize()[2]+0.1f,0.0f));
		node->attachObject(msg);
		return HOO::ALLOCATEFAIL;
	}
	return HOO::SUCCESS;
}

void SelectionHandler::updateTrackedBoxes()
{
  M_HandleToBox::iterator it = boxes_.begin();
  M_HandleToBox::iterator end = boxes_.end();
  for (; it != end; ++it)
  {
    V_AABB aabbs;
    Picked p(it->first.first);
    p.extra_handles.insert(it->first.second);
    getAABBs(Picked(it->first.first), aabbs);

    if (!aabbs.empty())
    {
      Ogre::AxisAlignedBox combined;
      V_AABB::iterator aabb_it = aabbs.begin();
      V_AABB::iterator aabb_end = aabbs.end();
      for (; aabb_it != aabb_end; ++aabb_it)
      {
        combined.merge(*aabb_it);
      }

      createBox(std::make_pair(p.handle, it->first.second), combined, "RVIZ/Cyan");
    }
  }
}

void ProjectManager::initializeSceneManager()
{
    assert(QThread::currentThread() == thread());

    Ogre::Root& root = Ogre::Root::getSingleton();
    Ogre::SceneManager* mgr = NULL;
    if(root.hasSceneManager(Application::sSceneManagerName))
    {
        mgr = root.getSceneManager(Application::sSceneManagerName);
        root.destroySceneManager(mgr);
    }

    mgr = root.createSceneManager(Ogre::ST_GENERIC, Application::sSceneManagerName);
    mgr->setShadowTechnique(Ogre::SHADOWTYPE_NONE);
    mgr->setAmbientLight(Ogre::ColourValue(1, 1, 1));
    mgr->setShadowCasterRenderBackFaces(false);
    mgr->setCameraRelativeRendering(true);
    mgr->setShowDebugShadows(true);

    // This fixes some issues with ray casting when using shallow terrain.
    Ogre::AxisAlignedBox box;
    Ogre::Vector3 max(100000, 100000, 100000);
    box.setExtents(-max, max);
    mgr->setOption("Size", &box);
}

//-------------------------------------------------------------------------------------
bool BaseApplication::setup(void)
{
    mRoot = new Ogre::Root(mPluginsCfg);

    setupResources();

    bool carryOn = configure();
    if (!carryOn) return false;

    chooseSceneManager();
    createCamera();
    createViewports();

    // Set default mipmap level (NB some APIs ignore this)
    Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(5);


    
    // Create background material
    Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().create("Background", "General");
    material->getTechnique(0)->getPass(0)->createTextureUnitState("space.jpg");
    material->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
    material->getTechnique(0)->getPass(0)->setDepthWriteEnabled(false);
    material->getTechnique(0)->getPass(0)->setLightingEnabled(false);

    // Create background rectangle covering the whole screen
    rect = new Ogre::Rectangle2D(true);
    rect->setCorners(-1.0, 1.0, 1.0, -1.0);
    rect->setMaterial("Background");
     
    // Render the background before everything else
    rect->setRenderQueueGroup(Ogre::RENDER_QUEUE_BACKGROUND);
     
    // Use infinite AAB to always stay visible
    Ogre::AxisAlignedBox aabInf;
    aabInf.setInfinite();
    rect->setBoundingBox(aabInf);
     
    // Attach background to the scene
    Ogre::SceneNode* node = mSceneMgr->getRootSceneNode()->createChildSceneNode("Background");
    node->attachObject(rect);
     
    // Example of background scrolling
    material->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setScrollAnimation(-0.10, 0.0);
     
    // Don't forget to delete the Rectangle2D in the destructor of your application:

    // Create any resource listeners (for loading screens)
    createResourceListener();
    // Load resources
    loadResources();

    // Create the scene
    createScene();
    

    createFrameListener();

    return true;
};

void CSceneEditorView::OnEditsceneAddentity()
{
	CEntityCreatorDlg EntityCreatorDlg;

	if (IDOK == EntityCreatorDlg.DoModal())
	{
		HTREEITEM Selected = m_SceneManagerDlg->m_SceneTree.GetSelectedItem();
		m_SceneManagerDlg->m_SceneTree.InsertItem(EntityCreatorDlg.m_EntityName, Selected);
		
		Ogre::String SceneNodeName = m_SceneManagerDlg->m_SceneTree.GetItemText(Selected);
		Ogre::Entity *Entity = m_SceneManager->createEntity(Ogre::String(EntityCreatorDlg.m_EntityName), Ogre::String(EntityCreatorDlg.m_MeshName));
		Ogre::SceneNode *SceneNode = m_SceneManager->getSceneNode(SceneNodeName);
		SceneNode->attachObject(Entity);
	
		Ogre::AxisAlignedBox Box = Entity->getBoundingBox();
		Ogre::Vector3 Center = Box.getCenter();
		m_Camera->lookAt(Center);

		m_SceneManagerDlg->m_SceneTree.Expand(Selected, TVE_EXPAND);
		
		if (m_Root != NULL)
		{
			m_Root->renderOneFrame();
		}
	}
}

Ogre::AxisAlignedBox GPUBillboardSet::calculateBillboardsBoundingBox(const std::vector<PhotoSynth::Vertex>& vertices)
{
	Ogre::AxisAlignedBox box;
	for (std::size_t i=0; i<vertices.size(); ++i)
		box.merge(vertices[i].position);	
	return box;
}

void MergeBounds(Ogre::SceneNode* node, Ogre::SceneNode* rootNode,
                  const Ogre::Matrix4& parentTransform, Ogre::AxisAlignedBox& aabb)
{
    // Get this nodes current transform
    Ogre::Matrix4 currentTransform = parentTransform;
    if (node != rootNode)
    {
        Ogre::Matrix4 localTransform(node->getOrientation());
        localTransform.setTrans(node->getPosition());
        currentTransform = currentTransform * localTransform;
    }

    // Merge this nodes objects
    Ogre::SceneNode::ObjectIterator object = node->getAttachedObjectIterator();
    while (object.hasMoreElements())
    {
        Ogre::AxisAlignedBox localAABB = object.getNext()->getBoundingBox();
        localAABB.transform(currentTransform);
        aabb.merge(localAABB);
    }

    // Iterate through all children and call this function on them
    Ogre::SceneNode::ChildNodeIterator child = node->getChildIterator();
    while (child.hasMoreElements())
    {
        MergeBounds(static_cast<Ogre::SceneNode*>(child.getNext()), rootNode, currentTransform, aabb);
    }
}

void AIRayPathFinderStrategy::Init()
{
	AIPathFinderStrategy::Init();
	//if (Inited)
	//	return;
	Inited=true;
	if (Lines)
		delete [] Lines;
	
	Lines = new Ogre::Ray[LinesNumber];

    IScenable *scen = Parent->GetScenable();
    assert(scen);

	Ogre::AxisAlignedBox OurBox = scen->GetBoundingBox(false);
	Vector3 extent = OurBox.getSize();
	float HalfSide = extent.z/2, Side=HalfSide*2;

	LineOrigins[0]=Vector3(-HalfSide,-HalfSide,0);
	LineOrigins[1]=Vector3(-HalfSide,HalfSide,0);
	LineOrigins[2]=Vector3(HalfSide,HalfSide,0);
	LineOrigins[3]=Vector3(HalfSide,-HalfSide,0);

	LineOrigins[4]=Vector3(0,-HalfSide,0);
	LineOrigins[5]=Vector3(-HalfSide,0,0);
	LineOrigins[6]=Vector3(0,HalfSide,0);
	LineOrigins[7]=Vector3(HalfSide,0,0);
}

ConvexVolume::ConvexVolume(Ogre::AxisAlignedBox boundingBox, float offset)
{
    Ogre::Vector3 max = boundingBox.getMaximum();
    Ogre::Vector3 min = boundingBox.getMinimum();

    // Offset bounding box (except height)
    if(offset > 0.01f) {
        max = max + offset*Ogre::Vector3(1,0,1);
        min = min - offset*Ogre::Vector3(1,0,1);
    }

    // Create box verts (in clockwise fashion!!)
    verts[0]= min.x; verts[1]= min.y; verts[2]= max.z;
    verts[3]= max.x; verts[4]= max.y; verts[5]= max.z;
    verts[6]= max.x; verts[7]= max.y; verts[8]= min.z;
    verts[9]= min.x; verts[10]= min.y; verts[11]= min.z;
    nverts = 4; // For rcMarkConvexPoly the verts of the shape need to be in clockwise order

    // Set bounding box limits
    OgreRecast::OgreVect3ToFloatA(min, bmin);
    OgreRecast::OgreVect3ToFloatA(max, bmax);

    // Set height limits
    hmin = min.y;
    hmax = max.y;

    area = SAMPLE_POLYAREA_DOOR;   // You can choose whatever flag you assing to the poly area
}

void EditorApplication::createSkybox(string skybox_name) {
	LibGens::Model *skybox_model=current_level->getModelLibrary()->getModel(skybox_name);
	if (skybox_model) {
		Ogre::SceneNode *scene_node = scene_manager->getRootSceneNode()->createChildSceneNode();
		buildModel(scene_node, skybox_model, skybox_model->getName(), "", scene_manager, current_level->getMaterialLibrary(), 0, GENERAL_MESH_GROUP, false);


		unsigned short attached_objects=scene_node->numAttachedObjects();
		for (unsigned short i=0; i<attached_objects; i++) {
			Ogre::Entity *entity=static_cast<Ogre::Entity *>(scene_node->getAttachedObject(i));
			entity->setRenderQueueGroup(Ogre::RENDER_QUEUE_SKIES_EARLY);
			unsigned int attached_entities=entity->getNumSubEntities();

			Ogre::AxisAlignedBox aabb;
			aabb.setInfinite();
			entity->getMesh()->_setBounds(aabb, false);

			for (unsigned int j=0; j<attached_entities; j++) {
				Ogre::SubEntity *sub_entity=entity->getSubEntity(j);
				Ogre::MaterialPtr material=sub_entity->getMaterial();
				Ogre::Pass *pass=material->getTechnique(0)->getPass(0);
				pass->setDepthWriteEnabled(false);
			}
		}
	}
}

Ogre::Real LuaScriptUtilities::GetRadius(Ogre::SceneNode* const sceneNode)
{
    sceneNode->_updateBounds();
    const Ogre::AxisAlignedBox aabb = sceneNode->_getWorldAABB();

    return aabb.getHalfSize().length();
}

const Ogre::AxisAlignedBox& Canvas::getBoundingBox() const
{
	static Ogre::AxisAlignedBox box;
	box.setInfinite();

	return box;
}

InputGeometry::InputGeometry(std::vector<Ogre::Entity*> sourceMeshes,const Ogre::AxisAlignedBox& tileBounds)
	: _sourceMeshes(sourceMeshes),
	  _numVertices(0),
	  _numTriangles(0),
	  _referenceNode(0),
	  _boundMin(0),
	  _boundMax(0),
	  _normals(0),
	  _vertices(0),
	  _triangles(0)
{
	if(sourceMeshes.empty())
	{
		return;
	}

	Ogre::Entity* ent = sourceMeshes[0];
	_referenceNode = ent->getParentSceneNode()->getCreator()->getRootSceneNode();

	_boundMin = new float[3];
	_boundMax = new float[3];
	Utility::vector3_toFloatPtr(tileBounds.getMinimum(),_boundMin);
	Utility::vector3_toFloatPtr(tileBounds.getMaximum(),_boundMax);

	_convertOgreEntities(tileBounds);

	//eventually add _buildChunkyTriMesh()

}

    LoadingScreen::LoadingScreen(Ogre::SceneManager* sceneMgr, Ogre::RenderWindow* rw)
        : mSceneMgr(sceneMgr)
        , mWindow(rw)
        , WindowBase("openmw_loading_screen.layout")
        , mLastRenderTime(0.f)
        , mLastWallpaperChangeTime(0.f)
        , mFirstLoad(true)
        , mProgress(0)
        , mVSyncWasEnabled(false)
    {
        getWidget(mLoadingText, "LoadingText");
        getWidget(mProgressBar, "ProgressBar");
        getWidget(mBackgroundImage, "BackgroundImage");

        mProgressBar->setScrollViewPage(1);

        mBackgroundMaterial = Ogre::MaterialManager::getSingleton().create("BackgroundMaterial", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
        mBackgroundMaterial->getTechnique(0)->getPass(0)->setLightingEnabled(false);
        mBackgroundMaterial->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
        mBackgroundMaterial->getTechnique(0)->getPass(0)->createTextureUnitState("");

        mRectangle = new Ogre::Rectangle2D(true);
        mRectangle->setCorners(-1.0, 1.0, 1.0, -1.0);
        mRectangle->setMaterial("BackgroundMaterial");
        // Render the background before everything else
        mRectangle->setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY-1);
        // Use infinite AAB to always stay visible
        Ogre::AxisAlignedBox aabInf;
        aabInf.setInfinite();
        mRectangle->setBoundingBox(aabInf);
        // Attach background to the scene
        Ogre::SceneNode* node = mSceneMgr->getRootSceneNode()->createChildSceneNode();
        node->attachObject(mRectangle);
        mRectangle->setVisible(false);
    }

Fader::Fader(Ogre::SceneManager* sceneMgr)
    : mSceneMgr(sceneMgr)
    , mMode(FadingMode_In)
    , mRemainingTime(0.f)
    , mTargetTime(0.f)
    , mTargetAlpha(0.f)
    , mCurrentAlpha(0.f)
    , mStartAlpha(0.f)
    , mFactor(1.f)
{
    // Create the fading material
    MaterialPtr material = MaterialManager::getSingleton().create("FadeInOutMaterial", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME );
    Pass* pass = material->getTechnique(0)->getPass(0);
    pass->setSceneBlending(SBT_TRANSPARENT_ALPHA);
    pass->setDepthWriteEnabled (false);
    mFadeTextureUnit = pass->createTextureUnitState("black.png");
    mFadeTextureUnit->setColourOperationEx(LBX_SOURCE1, LBS_MANUAL, LBS_CURRENT, ColourValue(0.f, 0.f, 0.f)); // always black colour    

    mRectangle = new Ogre::Rectangle2D(true);
    mRectangle->setCorners(-1.0, 1.0, 1.0, -1.0);
    mRectangle->setMaterial("FadeInOutMaterial");
    mRectangle->setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY-1);
    // Use infinite AAB to always stay visible
    Ogre::AxisAlignedBox aabInf;
    aabInf.setInfinite();
    mRectangle->setBoundingBox(aabInf);
    // Attach background to the scene
    Ogre::SceneNode* node = mSceneMgr->getRootSceneNode()->createChildSceneNode();
    node->attachObject(mRectangle);
    mRectangle->setVisible(false);
    mRectangle->setVisibilityFlags (2048);
}