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C++ Matrix::decompose方法代码示例

本文整理汇总了C++中osg::Matrix::decompose方法的典型用法代码示例。如果您正苦于以下问题：C++ Matrix::decompose方法的具体用法？C++ Matrix::decompose怎么用？C++ Matrix::decompose使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类osg::Matrix的用法示例。


在下文中一共展示了Matrix::decompose方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: rotate

void CameraFlight::rotate(osg::Vec3 from, osg::Vec3 to)
{
    objMat = SceneManager::instance()->getObjectTransform()->getMatrix();
    objMat.decompose(trans1, rot1, scale1, so1);

    rotAngle = (origAngle + (-(origAngle/25)*pow((t-5),2)))/195;

    if(angle > 0.0) {

    	osg::Vec3 crsVec = from^to;
    	crsVec.normalize();

    	osg::Matrix rotM;
    	rotM.makeRotate(DegreesToRadians(-1*rotAngle),crsVec);

  	angle -= rotAngle;
    	_rotMat = rotM * objMat;
	//SceneManager::instance()->setObjectMatrix(_rotMat);
    }

    else {
	_rotMat = objMat;
    }

    zoomOut(trans1,_rotMat);
}
开发者ID:aprudhomme，项目名称:calvr_plugins，代码行数:26，代码来源:CameraFlight.cpp

示例2: preFrame

void CameraFlight::preFrame()
{
    w2o = SceneManager::instance()->getWorldToObjectTransform();
    o2w = SceneManager::instance()->getObjectToWorldTransform();

    curMatrix = SceneManager::instance()->getObjectTransform()->getMatrix();
    curScale = SceneManager::instance()->getObjectScale();

    _zoomMat = SceneManager::instance()->getObjectTransform()->getMatrix();
    _zoomMat.decompose(trans1, rot1, scale1, so1);

    osgEarth::MapNode* mapNode = MapNode::findMapNode(SceneManager::instance()->getObjectsRoot());
    map = mapNode->getMap();

    t+=cvr::PluginHelper::getLastFrameDuration();

    if(ComController::instance()->isMaster())
    {
	origPlanetPoint = PluginHelper::getWorldToObjectTransform().getTrans();

	map->getProfile()->getSRS()->getEllipsoid()->convertXYZToLatLongHeight(
					origPlanetPoint.x(),
					origPlanetPoint.y(),
					origPlanetPoint.z(),
					latLonHeight.x(),
					latLonHeight.y(),
					latLonHeight.z());
	latLonHeight[2] = 0.0;

	map->getProfile()->getSRS()->getEllipsoid()->convertLatLongHeightToXYZ(
					latLonHeight.x(),
					latLonHeight.y(),
					latLonHeight.z(),
					origPlanetPoint.x(),
					origPlanetPoint.y(),
					origPlanetPoint.z());

	distanceToSurface = (origPlanetPoint * PluginHelper::getObjectToWorldTransform()).length();
	
	ComController::instance()->sendSlaves(&distanceToSurface,sizeof(double));
    }

    else
    {
	ComController::instance()->readMaster(&distanceToSurface,sizeof(double));
    }

    if(flagRot){
	t += cvr::PluginHelper::getLastFrameDuration();
	if(t >= 10)
	    flagRot = false;
	else
	    rotate(fromVec, toVec);
    }
}
开发者ID:aprudhomme，项目名称:calvr_plugins，代码行数:55，代码来源:CameraFlight.cpp

示例3: navigate

void CameraFlight::navigate(osg::Matrix destMat, osg::Vec3 destVec)
{
    osg::Matrix objMat = SceneManager::instance()->getObjectTransform()->getMatrix();

    switch(_flightMode)
    {
	case INSTANT:{
	    cout<<"USING INSTANT"<<endl;
	    SceneManager::instance()->setObjectMatrix(destMat);
	    break;
	}
	case SATELLITE:
	    cout<<"USING SATELLITE"<<endl;

	    t = 0.0;
	    total = 0.0;
	
    	    objMat.decompose(trans2, rot2, scale2, so2);
	    a = (maxHeight - trans2[1])/25.0;

	    map->getProfile()->getSRS()->getEllipsoid()->convertLatLongHeightToXYZ(
					destVec.x(),destVec.y(),destVec.z(),toVec.x(),toVec.y(),toVec.z());

	    fromVec = origPlanetPoint;

	    fromVec.normalize();
	    toVec.normalize();

	    origAngle = acos((fromVec * toVec)/((fromVec.length() * toVec.length())));	
	    origAngle = RadiansToDegrees(origAngle);

	    angle = origAngle;

    	    if(origAngle <= 10) {
		maxHeight = 6.5e+9;
	    }

	    else {
		maxHeight = 2.0e+10;
	    }

	    flagRot = true;
	    break;
	case AIRPLANE:
	    cout<<"USING AIRPLANE"<<endl;
	    break;
	default:
	    cout<<"PICK THE ALGORYTHM!!!!"<<endl;
	    break;
    }
}
开发者ID:aprudhomme，项目名称:calvr_plugins，代码行数:51，代码来源:CameraFlight.cpp

示例4: 

/* virtual */
void
av::sound::openal::OpenALSoundRenderer::setListenerPosition(const ::osg::Matrix& position)
{
  ::osg::Vec3f translation;
  ::osg::Quat rotation;
  ::osg::Vec3f scale;
  ::osg::Quat scaleOrientation;

  position.decompose(translation, rotation, scale, scaleOrientation);

  ::alListenerfv(AL_POSITION, translation.ptr());
  ::osg::Matrix rotationMat;
  rotation.get(rotationMat);

  ::osg::Vec3f atAndUpVec[2];

  atAndUpVec[0] = rotationMat * ::osg::Vec3f(0.0f, 0.0f, -1.0f);
  atAndUpVec[1] = rotationMat * ::osg::Vec3f(0.0f, 1.0f, 0.0f);

  ::alListenerfv(AL_ORIENTATION, atAndUpVec[0].ptr());

  mPosition = position;
}
开发者ID:4og，项目名称:avango，代码行数:24，代码来源:OpenALSoundRenderer.cpp

示例5: computeUnSquishedMatrix

bool AntiSquish::computeUnSquishedMatrix(osg::Matrix& unsquished) const
{
    OpenThreads::ScopedLock<OpenThreads::Mutex> lock( _cacheLock );

    osg::NodePathList nodePaths = getParentalNodePaths();
    if (nodePaths.empty()) return false;

    osg::NodePath np = nodePaths.front();
    if (np.empty()) return false;

    // Remove the last node which is the anti squish node itself.
    np.pop_back();

    // Get the accumulated modeling matrix.
    const osg::Matrix localToWorld = osg::computeLocalToWorld(np);

    // reuse cached value
    if ( !_cacheDirty && _cacheLocalToWorld==localToWorld )
    {
        unsquished = _cache;
        return true;
    }

    osg::Vec3d t, s;
    osg::Quat r, so;

    localToWorld.decompose(t, r, s, so);

    // Let's take an average of the scale.
    double av = (s[0] + s[1] + s[2])/3.0;
    s[0] = av; s[1] = av; s[2]=av;

    if (av == 0)
        return false;

    //
    // Final Matrix: [-Pivot][SO]^[S][SO][R][T][Pivot][LOCALTOWORLD]^[position]
    // OR [SO]^[S][SO][R][T][LOCALTOWORLD]^
    //
    if (_usePivot)
    {
        unsquished.postMultTranslate(-_pivot);

        osg::Matrix tmps, invtmps;
        so.get(tmps);
        if (!invtmps.invert(tmps))
            return false;

        //SO^
        unsquished.postMult(invtmps);
        //S
        unsquished.postMultScale(s);
        //SO
        unsquished.postMult(tmps);
        //R
        unsquished.postMultRotate(r);
        //T
        unsquished.postMultTranslate(t);

        osg::Matrix invltw;
        if (!invltw.invert(localToWorld))
            return false;

        // LTW^
        unsquished.postMult( invltw );

        // Position
        if (_usePosition)
            unsquished.postMultTranslate(_position);
        else
            unsquished.postMultTranslate(_pivot);
    }
    else
    {
        osg::Matrix tmps, invtmps;
        so.get(tmps);
        if (!invtmps.invert(tmps))
            return false;

        unsquished.postMult(invtmps);
        unsquished.postMultScale(s);
        unsquished.postMult(tmps);
        unsquished.postMultRotate(r);
        unsquished.postMultTranslate(t);
        osg::Matrix invltw;
        if (!invltw.invert(localToWorld))
            return false;
        unsquished.postMult( invltw );
    }

    if (unsquished.isNaN())
        return false;

    _cache = unsquished;
    _cacheLocalToWorld = localToWorld;
    _cacheDirty = false;

    //As Transform::computeBounde calls us without a node-path it relies on
    //The cache. Hence a new _cache affects the bound.
    const_cast<AntiSquish*>(this)->dirtyBound();
//.........这里部分代码省略.........
开发者ID:AlexBobkov，项目名称:OpenSceneGraph，代码行数:101，代码来源:AntiSquish.cpp

示例6: buttonEvent

bool CameraFlight::buttonEvent(int type/*, const osg::Matrix & mat*/)
{
//    osg::Matrix curMatrix = SceneManager::instance()->getObjectTransform()->getMatrix();
//    double curScale = SceneManager::instance()->getObjectScale();

 //   osg::Matrix w2o = SceneManager::instance()->getWorldToObjectTransform();
 //   osg::Matrix o2w = SceneManager::instance()->getObjectToWorldTransform();

    if(type == 'p') {
	std::cerr<<"curMatrix"<<endl;
	printMat(curMatrix, curScale);
	
	cout<<"x = "<<latLonHeight.x()<<", y = "<<latLonHeight.y()<<", z = "<<latLonHeight.z()<<endl;
//	std::cerr<<"WorldToObject"<<endl;
//	printMat(w2o, curScale);

//	std::cerr<<"ObjectToWorld"<<endl;
//	printMat(o2w, curScale);
    }

    else if(type == 'd') {
	curMatrix.decompose(trans1, rot1, scale1, so1);

	std::cerr<<"<<<<<<<<<<<<<<<<<<<<<<<<<<<<"<<endl;
	cout<<"Trans = ";
	printVec(trans1);

	cout<<"Scale = ";
	printVec(scale1);

	cout<<"Rotate = ";
	printQuat(rot1);

	cout<<"Scale Orient =";
	printQuat(so1);

	std::cerr<<"<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"<<endl;
	    //osg::Matrix _trans = osg::Matrix::rotate(oldPos,currentPos) * osg::Matrix::translate(trans);
	
	    
	    //osg::Matrix rotMat = osg::Matrix::rotate(oldPos,currentPos);
	    //osg::Matrix wr = o2w * rotMat* w2o; 
//	    osg::Matrix _tmp = w2o * osg::Matrix::rotate(oldPos,currentPos) * o2w;
	    //osg::Matrix _scale = osg::Matrix::scale(scale);
	    //osg::Matrix _temp = osg::Matrix::translate(-trans) * _scale * _trans;

    }

    else if(type == 't') {
	curMatrix.setTrans(osg::Vec3(0.0,1e+09/*6.41844e+09*/,0));
	SceneManager::instance()->setObjectMatrix(curMatrix);
    }

    else if(type == 's') {
	_origMatrix = SceneManager::instance()->getObjectTransform()->getMatrix();
	_origScale = SceneManager::instance()->getObjectScale();
    }

    else if(type == 'z') {
	tstart = time(0);
//	zIn = 1e+10; 
//	zOut = 1e+10;
	cout<<"zpressed"<<endl;
	if (flagZoom == false)
	    flagZoom = true;
    }

    else if(type == 'r') {

	if (flagRot == false) {
	    flagRot = true;
	}
	else {
	    flagRot = false;
	}

	//cout<<"Old Matrix"<<endl;
	//curMatrix = SceneManager::instance()->getObjectTransform()->getMatrix();
	//curScale = SceneManager::instance()->getObjectScale();

//	printMat(curMatrix, curScale);

	
	/*osg::Matrix mat2 = */

        osg::Matrix rotM;	
	rotM.makeRotate(DegreesToRadians(1.0),osg::Vec3(0,1,0)); 
//	printMat(rotM, curScale);
	
	curMatrix= o2w * rotM * w2o;
	
  //      printMat(curMatrix, curScale);

	//curMatrix.setTrans(trans);
	//cout<<"New Matrix"<<endl;
	//printMat(curMatrix, curScale);
	cout<<"x = "<<origPlanetPoint[0]<<", y = "<<origPlanetPoint[1]<<", z = "<<origPlanetPoint[2]<<endl;

	osg::Matrix objMat = SceneManager::instance()->getObjectTransform()->getMatrix();

//.........这里部分代码省略.........
开发者ID:aprudhomme，项目名称:calvr_plugins，代码行数:101，代码来源:CameraFlight.cpp

示例7: computeUnSquishedMatrix

osg::Matrix AntiSquish::computeUnSquishedMatrix(const osg::Matrix& LTW, bool& flag)
{
    osg::Vec3d t, s;
    osg::Quat r, so;

    if (LTW == _cachedLocalToWorld && _dirty == false)
    {
        flag = false;
        return osg::Matrix::identity();
    }

    _cachedLocalToWorld = LTW;

    LTW.decompose(t, r, s, so);

    // Let's take an average of the scale.
    double av = (s[0] + s[1] + s[2])/3.0;
    s[0] = av; s[1] = av; s[2]=av;

    if (av == 0)
    {
        flag = false;
        return osg::Matrix::identity();
    }

    osg::Matrix unsquished;

    //
    // Final Matrix: [-Pivot][SO]^[S][SO][R][T][Pivot][LOCALTOWORLD]^[position]
    // OR [SO]^[S][SO][R][T][LOCALTOWORLD]^
    //
    if (_usePivot)
    {
        unsquished.postMultTranslate(-_pivot);

        osg::Matrix tmps, invtmps;
        so.get(tmps);
        if (!invtmps.invert(tmps))
        {
            flag = false;
            return osg::Matrix::identity();
        }

        //SO^
        unsquished.postMult(invtmps);
        //S
        unsquished.postMultScale(s);
        //SO
        unsquished.postMult(tmps);
        //R
        unsquished.postMultRotate(r);
        //T
        unsquished.postMultTranslate(t);

        osg::Matrix invltw;
        if (!invltw.invert(LTW))
        {
            flag = false;
            return osg::Matrix::identity();
        }
        // LTW^
        unsquished.postMult( invltw );

        // Position
        if (_usePosition)
            unsquished.postMultTranslate(_position);
        else
            unsquished.postMultTranslate(_pivot);
    }
    else
    {
        osg::Matrix tmps, invtmps;
        so.get(tmps);
        if (!invtmps.invert(tmps))
        {
            flag = false;
            return osg::Matrix::identity();
        }
        unsquished.postMult(invtmps);
        unsquished.postMultScale(s);
        unsquished.postMult(tmps);
        unsquished.postMultRotate(r);
        unsquished.postMultTranslate(t);
        osg::Matrix invltw;
        if (!invltw.invert(LTW))
        {
            flag = false;
            return osg::Matrix::identity();
        }
        unsquished.postMult( invltw );
    }

    if (unsquished.isNaN())
    {
        flag = false;
        return  osg::Matrix::identity();
    }

    flag = true;
    _dirty = false;
//.........这里部分代码省略.........
开发者ID:AndreyIstomin，项目名称:osg，代码行数:101，代码来源:AntiSquish.cpp


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